How to Check In for an American Airlines Flight

Whether you're a first-time flier or a seasoned AAdvantage member, mastering the American Airlines check-in process saves you time, money, and airport stress. This guide covers every check-in method — online, mobile app, self-service kiosk, and airport counter — along with boarding pass options, baggage rules, and international requirements.

American Airlines Check-In Time Limit: When Can You Check In?

The American Airlines check-in time limit is one of the first things every passenger should know. Check-in opens exactly 24 hours before departure and closes at different points depending on your route type. Missing these windows means you could lose your seat —Still deciding whether to fly? Read the American Airlines Cancellation Policy before your 24-hour check-in window opens.

Important: Even if you check in online, bag drop closes at the same cut-off times. From Honolulu (HNL), the bag drop limit is 6 hours before departure. From Miami (MIA), kiosk check-in opens up to 5 hours before departure.

How to Check In for American Airlines Flight Online

The American Airlines online check-in process is by far the fastest and most flexible method. All you need is a browser, your booking reference, and about three minutes. Here's exactly how to do it:

• Go to aa.com and click "Check In"- Head to the American Airlines official website. On the homepage, locate the "Check In" tab in the top navigation bar and click it.
• Enter your last name and booking reference- Input your last name and either your 6-character booking reference (PNR), AAdvantage number, or e-ticket number to pull up your reservation.
• Select your flight (if you have multiple)- If your account has multiple upcoming bookings, choose the specific flight you want to check in for today.
• Review and confirm your details- Verify passenger names, flight details, and seat assignments. If your travel dates have shifted, check out the American Airlines Flight Change Policy before completing check-in.
• Add bags or special requests (optional)- You can add checked baggage here and pay the fee online — which saves you money compared to paying at the airport counter.
• Download or print your boarding pass- Once completed, your American Airlines boarding pass is ready. Save it to your phone's wallet, download the PDF, or print a physical copy. You're all set!

Edqour Tip: Check in right at the 24-hour mark- Set a reminder for exactly 24 hours before departure. Early check-in gives you access to the best remaining seats and confirms your position before the flight fills up.

American Airlines Mobile App Check-In: Travel Smarter

The American Airlines mobile app check-in is available on iOS and Android. It lets you check in, add bags, change seats, and store your boarding pass digitally — all in one place. Below are the key features:

How to use the app: Open the American Airlines app → Tap 'Check In' on the home screen → Sign in or enter your booking reference → Follow the same steps as online check-in → Save your boarding pass to your phone wallet.

American Airlines Self Check-In Kiosk Guide

Already at the airport? The American Airlines self check-in kiosk is available in every major departure hall. It is fast, self-service, and prints bag tags and boarding passes on the spot. Follow these steps:

American Airlines Airport Check-In Rules (Counter)

The traditional American Airlines airport check-in counter is still the right option in specific situations — and for international travelers, it's often mandatory. Here's what to expect and when to use it.

When the Counter Is Your Best (or Only) Option

Head to the full-service check-in counter if you're traveling with special items like sports equipment, oversized luggage, or pets; if you require special assistance or have a medical condition; if you are flying as an unaccompanied minor; or if the system flags your booking for manual document verification on certain international routes.

American Airlines airport check-in rules— arrival time American Airlines strongly recommends arriving at the airport at least 2 hours before domestic and 3 hours before international departures, regardless of your check-in status.

American Airlines Boarding Pass Download: Your Options

Once you complete the American Airlines check-in process, your boarding pass is available in multiple formats. Choose the one that best suits your travel situation:

Caution for international travel: Some international airports do not accept mobile boarding passes. Always carry a printed backup when flying outside the United States, or verify your destination airport's policy in advance.

American Airlines International Check-In Requirements

International travel has extra layers. The American Airlines international check-in requirements go beyond just a booking reference — you'll need the right documents ready before you even approach a counter or kiosk.

Documents You'll Need

For international flights, you must have a valid passport (not expiring within 6 months of travel for most countries), any required visas for your destination or transit countries, and proof of onward or return travel if required by the destination country. Some routes also require health declarations or entry approvals.

New TSA Requirement

REAL ID or TSA ConfirmID now required For domestic U.S. flights, TSA now requires either a REAL ID-compliant driver's license or another accepted form of ID. If you don't have one, you'll need to use TSA's ConfirmID verification process, which carries a $45 fee payable at Pay.gov. Arrive extra early if using this process. If there is error in your name then go through American flight name correction policy and correct your name.

Codeshare Flights — Important Note

If your American Airlines booking includes a codeshare flight operated by a partner carrier (such as British Airways, Japan Airlines, or Iberia), you must follow that carrier's check-in rules — not American's. Always verify the operating airline on your ticket.

Also Read: Business Class Upgrades on American International Flights

American Airlines Baggage Check-In Policy

The American Airlines baggage check-in policy was updated in February 2026. The key takeaway: prepay your bags online to save money. American is actively incentivizing passengers to add bags before reaching the airport.

Who gets free checked bags? AAdvantage elite members (Gold and above), most co-branded American Airlines credit cardholders on domestic itineraries, and active U.S. military personnel on orders. Add your AAdvantage number to your booking to ensure benefits apply automatically.

Bag size rules: Standard checked bags must not exceed 62 inches (157 cm) total dimensions and weigh no more than 50 lbs (23 kg). Bags over 115 inches (292 cm) total are not accepted on American-operated flights.

When You Cannot Use Online or App Check-In

The American Airlines online check-in steps don't work for everyone in every situation. Here are the circumstances where you'll be directed to the airport counter regardless of your preference:

• Certain International Routes- Some international destinations require in-person document verification that cannot be completed digitally.
• Military Fares- Passengers booked on military fares must check in at the airport counter with valid military ID.
• Unaccompanied Minors- Children traveling alone must complete all check-in procedures at the airport counter with a guardian present. [Traveling with a baby on your lap? Lap infants also require counter check-in. Learn how to add a lap infant to your American Airlines ticket before arriving at the airport.]
• Codeshare Partner Flights- Flights operated by another airline under a codeshare agreement must follow the operating carrier's check-in system.
• Traveling with Pets- Passengers flying with pets in-cabin or as cargo must check in at the airport counter for proper documentation. [Haven't added your pet to the booking yet? Here's exactly how to add a pet to your American Airlines ticket so you're ready for counter check-in.]
• Special Assistance Needs- Passengers requiring wheelchair assistance or other special accommodations should check in at the counter for best service.

Sum Up

Understanding the American Airlines check-in process puts you in control of your travel day. The golden rule: do as much as possible before you reach the airport. Check in online or via the mobile app at the 24-hour mark, prepay your bags to save money, and download your boarding pass to your phone wallet.

For international routes, arrive 3 hours early, carry printed documents as backup, and confirm whether your specific flight supports online check-in. Domestic travelers — make sure your REAL ID is ready or factor in extra time for the TSA ConfirmID process.

Follow this guide and you will spend less time in queues and more time enjoying your journey. You can also go through the American seat assignment policy in case you want to book your preferred seat.