What Should I Do If I Can't Check-In American Airlines? Complete Guide

What Should I Do If I Can't Check-In American Airlines?

Being unable to check in for an American Airlines flight can be stressful, particularly when departure is approaching and you are expecting to receive your boarding pass online or through the American Airlines app.

The good news is that being unable to check in online does not automatically mean you cannot take your flight. There are several reasons why American Airlines may require you to complete check-in at the airport or may redirect you from the app to its website.

American Airlines allows eligible passengers to check in online or through its app beginning 24 hours before departure. Online check-in generally closes 45 minutes before departure for flights within the U.S. and 90 minutes before international flights, although some airports have earlier deadlines. (aa.com)

The American Airlines app also has specific eligibility requirements. For example, app check-in may not be available when the first flight is operated by another airline, when you are traveling with certain restricted items or as an unaccompanied minor, or when you do not have a seat assignment. (aa.com)

This guide explains what to do if you can't check in with American Airlines, why the problem happens, how to troubleshoot it, when you need to visit the airport counter, and what to do if your flight is approaching.

Why Can't I Check In for My American Airlines Flight?

There is no single reason why online check-in might fail.

Common causes include:

• Check-in has not opened yet.

• The online check-in window has closed.

• Your first flight is operated by another airline.

• You do not have a seat assignment.

• Your itinerary requires additional document verification.

• You are traveling with an infant.

• You are an unaccompanied minor.

• You are traveling with a pet.

• You are traveling with a firearm or other item requiring special handling.

• Your reservation needs an agent's assistance.

• Your name or passenger information does not match the required records.

• There is a technical problem with the website or app.

• Your airport has special check-in requirements.

• Your itinerary has changed or been disrupted.

American Airlines confirms that some passengers cannot check in through the app because of itinerary or passenger-specific circumstances. (aa.com)

The first thing to determine is whether you are actually eligible for online check-in.

When Does American Airlines Online Check-In Open?

American Airlines says online and app check-in begins 24 hours before departure. (aa.com)

If you try to check in several days before your flight, the system will not allow you to complete the process.

Example

If your flight departs Wednesday at 3:00 p.m., online check-in generally becomes available Tuesday at 3:00 p.m.

If you are trying to check in before the 24-hour window, there may be nothing wrong with your reservation.

Simply wait until check-in opens.

What If Online Check-In Has Already Closed?

American Airlines states that the standard minimum check-in time is:

• 45 minutes before scheduled departure for flights within the U.S.

• 60 minutes before scheduled departure for flights to or from destinations outside the U.S.

Some airports have earlier deadlines. (aa.com)

Online or app check-in can close at different times depending on the type of flight. American Airlines currently states that online/app check-in is available until 45 minutes before domestic flights and 90 minutes before international flights, with some airport-specific exceptions. (aa.com)

If you are already close to departure, do not keep trying to check in online.

Go directly to the airport and speak with an American Airlines representative.

What Should I Do If I Can't Check In Online?

Follow these steps in order.

Step 1: Confirm your departure time

• Check your reservation and verify that you are using the correct travel date and flight.
• Also check the current flight status because schedule changes can affect your reservation.

Step 2: Make sure check-in is open

• American Airlines online check-in generally opens 24 hours before departure. (aa.com)

Step 3: Try the American Airlines website

• If the app is not working, try checking in through aa.com.
• The American Airlines app can redirect certain passengers to the website when additional steps are required. (aa.com)

Step 4: Check your reservation details

Make sure you are entering:

• Correct passenger name

• Six-character confirmation code

• Correct flight information

American Airlines says passengers can retrieve a reservation through its kiosk using a six-character confirmation code or AAdvantage number. (aa.com)

Step 5: Try another device or browser

If the website is not responding correctly:

• Try another browser.

• Use a computer instead of a phone.

• Update the American Airlines app.

• Close and reopen the app.

• Switch between Wi-Fi and mobile data.

• Clear the browser cache if necessary.

Step 6: Go to the airport if the problem continues

• Do not risk missing your flight because you are trying repeatedly to fix an online check-in problem.
• American Airlines provides airport check-in through self-service kiosks and ticket-counter agents at applicable airports. (aa.com)

Why Can't I Check In on the American Airlines App?

The app has specific eligibility requirements.

American Airlines says passengers can check in through the app when:

• They are logged in or know the passenger name and six-character confirmation code.

• The first flight is operated by American Airlines.

• It is within the applicable check-in window.

• They have a seat assignment. (aa.com)

The app may not allow check-in if:

• The first flight is operated by another airline.

• You are traveling with a pet.

• You are traveling with a weapon or firearm.

• You are an unaccompanied minor.

• It is outside the applicable check-in period.

• You do not have a seat assignment.

American Airlines also says the app may send you to aa.com for certain situations, including travel with an infant under two or when you do not have a seat assignment. (aa.com)

So, an app error does not necessarily mean that your ticket is invalid.

What If I Don't Have a Seat Assignment?

A missing seat assignment can prevent app check-in.

American Airlines specifically lists passengers without a seat assignment among the situations that can result in the app directing them to aa.com. (aa.com)

If your reservation does not show a seat:

1. Open the reservation on aa.com.

2. Check whether seats are available for selection.

3. Follow any instructions displayed by American Airlines.

4. If you still cannot check in, go to the airport and speak with an agent.

Do not assume that the absence of a seat number means your reservation has been canceled.

What If My First Flight Is Operated by Another Airline?

• This is a common reason passengers cannot check in through the American Airlines app.
• American Airlines states that app check-in is not available when the first flight is operated by another airline. (aa.com)
• If your itinerary is a codeshare, look at the reservation to determine the operating carrier.
• For example, you may have purchased a ticket through American Airlines but have the first segment operated by a partner airline.
• In that situation, check-in may need to be completed through the operating carrier.

What should I do?

Check the flight details for wording such as:

• "Operated by [Airline Name]"
• Then follow that airline's check-in instructions.

What If I Am Traveling With an Infant?

• Traveling with an infant can require additional processing.
• American Airlines states that passengers traveling with an infant under two may be redirected from the app to aa.com for check-in. (aa.com)
• If online check-in does not work, follow the website instructions or visit an airport agent.
• Bring the appropriate documentation for the child and allow additional time at the airport.

What If I Am an Unaccompanied Minor?

• American Airlines lists unaccompanied-minor travel as a situation where app check-in is not available. (aa.com)
• If you are checking in an unaccompanied minor, plan to complete the required process at the airport.
• Do not rely on mobile check-in for an unaccompanied-minor reservation.

What If I Am Traveling With a Pet?

• American Airlines says travelers with pets may not be able to check in through the app. (aa.com)
• If you are traveling with a pet, arrive early enough to complete the required airport procedures.
• Have your pet reservation information and any required documentation available.

What If I Am Traveling With a Firearm?

• American Airlines identifies travel with a weapon or firearm as another situation where app check-in may not be available. (aa.com)
• Do not attempt to bypass the required airport process simply to obtain a mobile boarding pass.
• Follow American Airlines' current firearm and baggage requirements and speak with an agent at the airport.

What If My Passport or Travel Documents Cannot Be Verified Online?

• International travel can require additional document checks.
• American Airlines states that travelers should check destination-specific restrictions and bring required travel documents to the airport. (aa.com)
• If the system does not issue your boarding pass because your passport, visa, or other travel information needs verification, you may need to complete check-in with an airport agent.

Bring:

• Passport

• Visa, if required

• Residence permit, if applicable

• Other destination-specific documents

• Booking confirmation

Do not assume that an online check-in failure means you cannot travel.

What If My Name Does Not Match My ID?

• A mismatch between your reservation and government-issued identification can create check-in problems.
• Check the passenger name carefully.
• The name on your travel documents should correspond to the information required for your reservation and security screening.
• If you notice a genuine name-entry error, contact American Airlines rather than repeatedly attempting online check-in.
• Do not create a new reservation just because of a minor passenger-information issue without first asking American Airlines how the existing ticket can be corrected.

What If My Date of Birth Is Wrong?

An incorrect date of birth can also create problems with passenger information and security screening.

American Airlines states that TSA Secure Flight information includes:

• Name as it appears on government-issued ID

• Date of birth

• Gender

• Redress Number, when applicable and optional. (aa.com)

If your DOB is incorrect, contact American Airlines before departure and request that the passenger information be corrected.

This is especially important for international travel and reservations involving children or infants.

What If I Can't Check In Because of a Technical Error?

Sometimes the issue is simply technological.

Try these troubleshooting steps:

Use aa.com instead of the app

• If the app fails, open the American Airlines website and attempt check-in there.

Try another browser

• Chrome, Edge, Safari, or another supported browser may behave differently.

Update the app

• An outdated application can cause compatibility problems.

Restart your device

• A simple restart can resolve temporary application or network issues.

Check your internet connection

• Try another Wi-Fi network or mobile data.

Try again later

• Temporary website issues can resolve themselves.
• However, do not keep troubleshooting until you miss the airport check-in deadline.

What If American Airlines Website Is Not Working?

If aa.com is temporarily unavailable or your reservation cannot be retrieved:

1. Save a screenshot of the error if possible.

2. Try the American Airlines app.

3. Try another browser or device.

4. Check your email for the original confirmation.

5. Go to the airport early.

6. Use an American Airlines kiosk or ticket counter.

American Airlines says most airports provide self-service kiosks, and these can be used to access a trip, check in, print a boarding pass, print bag tags, and make certain trip updates. (aa.com)

Can I Check In at an American Airlines Airport Kiosk?

Yes, at airports where the service is available.

American Airlines says its self-service kiosks can be used to:

• Access your trip

• Check in

• Print your boarding pass

• Print bag tags

• Change or purchase a seat

• Complete certain other travel functions. (aa.com)

You can access your reservation at a kiosk using a mobile or paper boarding pass, six-character confirmation code, or AAdvantage number. (aa.com)

If the kiosk cannot complete your check-in, proceed to the ticket counter.

Can an American Airlines Agent Check Me In?

Yes.

If online or kiosk check-in does not work, an American Airlines airport representative can review your reservation and determine what is preventing check-in.

This is particularly important if:

• Your travel documents require verification.

• You are traveling with an infant.

• You are an unaccompanied minor.

• You are traveling with a pet.

• Your reservation has an irregularity.

• Your first flight is operated by another airline.

• You need special assistance.

• Your seat assignment has not been finalized.

How Early Should I Arrive at the Airport If I Can't Check In Online?

American Airlines recommends arriving:

• At least 2 hours before departure for travel within the U.S.

• At least 3 hours before departure for travel outside the U.S. (aa.com)

Arriving early is especially important if you were unable to complete online check-in.

Airport check-in deadlines

American Airlines currently states that passengers generally must be checked in:

• At least 45 minutes before departure for domestic flights.

• At least 60 minutes before departure for flights to or from destinations outside the U.S.

Some airports require earlier check-in. (aa.com)

Do not treat these deadlines as recommended arrival times. You should arrive substantially earlier so you have time for check-in, baggage, security, and reaching your gate.

What If I Can't Check In and My Flight Is in a Few Hours?

Do not wait for the online system to start working.

Go to the airport.

If possible:

1. Have your confirmation code ready.

2. Bring your government-issued ID.

3. Bring your passport and visa for international travel.

4. Bring your baggage information.

5. Go to an American Airlines kiosk.

6. If the kiosk does not work, speak with an agent immediately.

American Airlines advises domestic travelers to arrive at least two hours before departure and international travelers at least three hours before departure. (aa.com)

What If I Miss the Check-In Deadline?

• This is more serious than an ordinary website error.
• American Airlines states that if you are not checked in by the minimum check-in time, it may reassign your seat to another passenger. (aa.com)
• The airline also states that boarding ends before departure and that passengers who are not on board when boarding closes will not be allowed to board. (aa.com)
• If you are close to the deadline, prioritize reaching an airport agent over troubleshooting your phone.

What If I Have a Boarding Pass but Cannot Check In?

Sometimes a passenger may already have a boarding pass or seat assignment but still encounter an error when attempting to complete another check-in step.

First, check whether your boarding pass is already available in:

• American Airlines app

• Apple Wallet or Google Wallet, if added

• Email

• Printed documents

If you have a valid boarding pass and seat assignment, verify the boarding and gate information.

American Airlines says passengers must have a boarding pass with a valid seat assignment to board. (aa.com)

What If I Can't Check In Because My Flight Was Changed?

If American Airlines has changed your flight, your original check-in information may no longer work as expected.

Open your reservation and review:

• New flight number

• Departure time

• Departure airport

• Connection

• Seat assignment

• Operating carrier

American Airlines states that operational changes can affect the flight number, aircraft, seat assignment, and even the airline operating the flight. (aa.com)

If the reservation has been changed and online check-in still fails, contact an American Airlines agent or go to the airport.

What If My Flight Is a Codeshare?

• A codeshare can create confusion because the airline that sold the ticket may not be the airline operating the flight.
• American Airlines states that if your codeshare flight is operated by a partner, you should check with that airline regarding check-in. (aa.com)
• Look at your itinerary for the operating-carrier information.
• If the first segment is operated by another airline, that may explain why the American Airlines app will not allow check-in. (aa.com)

What If I Need to Check Bags but Can't Check In Online?

You can still complete airport check-in and baggage processing if you arrive within the applicable deadline and your reservation is eligible.

American Airlines provides several airport options, including:

• Self-service kiosks

• Ticket counters

• Curbside check-in at participating airports

American Airlines says curbside check-in is available for eligible domestic travelers with confirmed reservations, and passengers can present photo ID plus their name and flight number, confirmation code, or destination. (aa.com)

If curbside service is unavailable or you have a situation requiring an agent, use the terminal kiosk or ticket counter.

Can I Use Curbside Check-In If Online Check-In Fails?

At participating airports, curbside check-in can be an alternative for eligible domestic travelers.

American Airlines says curbside check-in can provide:

• Check-in

• Seat assignment

• Boarding pass

• Checked-bag processing

The airline notes that a small convenience fee may apply in addition to any checked-bag charges. (aa.com)

However, certain circumstances require you to use the terminal, including some situations involving unaccompanied minors, pets, or firearms. (aa.com)

What Documents Should I Bring If I Can't Check In Online?

Bring everything you would normally need for your trip, especially if you are traveling internationally.

Domestic travel

Bring:

• Government-issued photo ID

• Confirmation code

• AAdvantage number, if applicable

• Any relevant travel documents

International travel

Bring:

• Passport

• Visa, if required

• Residence permit, if applicable

• Other required destination documents

• Confirmation code

• Any relevant health or entry documentation

American Airlines advises travelers to check destination restrictions and bring required travel documents to the airport. (aa.com)

How Do I Fix an American Airlines Check-In Error?

Use this quick troubleshooting sequence:

1. Check the time

• Make sure you are within the 24-hour check-in window.

2. Check the operating carrier

• If another airline operates the first flight, use that carrier's check-in process.

3. Check your seat

• If you have no seat assignment, try aa.com or contact an agent.

4. Check passenger details

• Verify your name and other required information.

5. Try the website

• If the app fails, use aa.com.

6. Try another device

• Use a different browser, computer, or phone.

7. Check your documents

• For international travel, make sure your passport and required entry documents are valid.

8. Go to the airport

• If you still cannot check in, arrive early and use an American Airlines kiosk or agent.

What Should I Do If American Airlines Says "Unable to Check In"?

The exact error message matters.

An "unable to check in" message can result from an itinerary that requires additional processing rather than a problem with your ticket.

Check whether the message provides a reason.

If it does not:

1. Try aa.com.

2. Check your reservation.

3. Confirm the flight is operated by American Airlines.

4. Confirm that you have a seat assignment.

5. Check the time remaining before departure.

6. Contact American Airlines or go to the airport.

If departure is approaching, skip extended troubleshooting and speak with an airport agent.

Frequently Asked Questions If American Airlines Says "Unable to Check In"

Why can't I check in online with American Airlines?

• Possible reasons include being outside the check-in window, having no seat assignment, traveling with an infant, pet, firearm, or unaccompanied minor, or having a first flight operated by another airline. (aa.com)

When does American Airlines online check-in open?

• Online and app check-in generally opens 24 hours before departure. (aa.com)

Can I check in at the airport if online check-in doesn't work?

• Yes. American Airlines provides airport check-in through kiosks and ticket-counter agents at applicable airports. (aa.com)

How early should I arrive if I can't check in online?

• American Airlines recommends arriving at least 2 hours before domestic departures and 3 hours before international departures. (aa.com)

Can I check in using the American Airlines app?

• Yes, if your itinerary meets the app's eligibility requirements. The app may not support check-in when the first flight is operated by another airline, when you have no seat assignment, or in certain special circumstances. (aa.com)

What if the American Airlines app doesn't work?

• Try checking in through aa.com. If that also fails, try another browser or device and then proceed to an airport kiosk or ticket counter if necessary.

Why is American Airlines asking me to check in at the airport?

• The reservation may require additional verification or may fall into a category that cannot complete online or app check-in. International document verification and certain passenger circumstances can require an airport agent.

Can I check in if I don't have a seat assignment?

• The app may not allow check-in when you do not have a seat assignment. American Airlines says passengers in this situation may be directed to aa.com. (aa.com)

Can I check in online if my first flight is operated by another airline?

• The American Airlines app does not support check-in when the first flight is operated by another airline. Check with the operating carrier for its check-in procedure. (aa.com)

What if I am traveling internationally?

• International passengers may need additional document verification. American Airlines advises travelers to check destination-specific requirements and bring the necessary travel documents to the airport. (aa.com)

What happens if I miss American Airlines' check-in deadline?

• American Airlines may reassign your seat if you are not checked in by the minimum check-in time. Some airports have earlier deadlines than the general rule. (aa.com)

Can I check in at an American Airlines kiosk?

• Yes. American Airlines kiosks can be used to access a trip, check in, print boarding passes, print bag tags, and perform certain reservation functions. (aa.com)

Can I use curbside check-in?

• Curbside check-in is available at participating airports for eligible domestic travelers. It can provide check-in, a boarding pass, seat assignment, and checked-bag processing. (aa.com)

What if I have a pet and can't check in through the app?

• American Airlines lists travel with a pet as one situation in which app check-in may not be available. Follow the airline's airport check-in procedure and allow sufficient time. (aa.com)

Why can't I check online for the American Airlines flight?

If you can't check in for your American Airlines flight, don't immediately assume that something is wrong with your ticket. Online check-in has a defined time window, and certain itineraries and passenger circumstances require additional processing.

First, confirm that check-in is open. American Airlines generally opens online and app check-in 24 hours before departure. Then check your reservation, seat assignment, operating carrier, and travel documents. If the app does not work, try aa.com. (aa.com)

If you still cannot check in, go to the airport early. American Airlines provides self-service kiosks and airport agents who can handle check-in and boarding-pass issuance at applicable locations. (aa.com)

Pay particular attention to codeshare flights, international travel, missing seat assignments, travel with infants or pets, and other situations that may prevent app check-in. (aa.com)

Most importantly, do not let an online check-in problem cause you to miss the airport deadline. American Airlines generally requires passengers to be checked in at least 45 minutes before domestic departure and 60 minutes before flights to or from destinations outside the U.S., with earlier deadlines at some airports. (aa.com)

When in doubt, take your confirmation code and identification to an American Airlines airport representative and ask them to review the reservation. Get help from American Airlines Expert by calling the number given on website. or Read here... Contact American Airlines

Official American Airlines Resources

• American Airlines — Check-In and Arrival

• American Airlines — Website and Mobile App FAQs

• American Airlines — Airport Kiosks

• American Airlines — Curbside Check-In

• American Airlines — Conditions of Carriage