
United Airlines offers several check-in options for passengers, including online, via the United app, by phone, or at the airport. The check-in time for United flights varies depending on the type of flight, the departure airport, and whether passengers have baggage to check. For domestic flights, passengers with carry-on baggage only must check in at least 30 minutes before departure, while those with checked baggage must check in at least 45 minutes before departure. For international flights, the minimum check-in time is 60 minutes before departure, with some airports requiring 75 or 90 minutes. It is recommended that passengers arrive at the airport at least two hours before a domestic flight and three hours before an international flight to ensure sufficient time for check-in, baggage drop, and security clearance.
| Characteristics | Values |
|---|---|
| Check-in time at the airport ticket counter | 3 hours to 45 minutes before departure for domestic flights; 3 hours to 1 hour before departure for international flights |
| Check-in time with baggage | 45 minutes before departure for domestic flights; 1 hour before departure for international flights |
| Online check-in time | 24 hours to 45 minutes before departure for domestic flights; 24 hours to 1 hour before departure for international flights |
| Mobile check-in time | 24 hours to 1 hour before departure |
| Self-service kiosk check-in time | 30 minutes to 3 hours before departure |
| Voice check-in time | Not specified, but available for customers traveling with less than 10 people within the U.S. or Canada |
| Boarding time | 15 minutes before departure for domestic flights; 30 minutes before departure for international flights |
| Recommended arrival time | 2 hours for domestic flights; 3 hours for international flights |
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What You'll Learn

Check-in times for international flights
For United Airlines international flights, online check-in is available from 24 hours to 1 hour before departure. However, there are some exceptions to this rule. For flights from Latin America, the Caribbean, and St. Thomas, check-in closes 90 minutes before departure. For flights from Europe, including Amsterdam, Athens, Berlin, Brussels, Dublin, Frankfurt, Milan, and Paris, check-in closes 75 minutes before departure. For flights from Asia and the Pacific, including Kosrae, Chuuk, Kwajalein, Manila, Palau, Pohnpei, Saipan, and Yap, check-in closes 60 minutes before departure.
Passengers can also check in at the airport using a self-service kiosk or at the ticket counter. Airport check-in is available from 30 minutes to 3 hours before the scheduled departure time. However, it is recommended that passengers arrive at the airport at least 2 hours before departure, regardless of their check-in method.
For international flights, passengers must be at the boarding gate at least 30 minutes before the scheduled departure time. This is the minimum time allowed for boarding an international flight, and it is always safer to arrive at the gate earlier to account for any potential delays or issues.
In addition to online and airport check-in options, United Airlines also offers a phone check-in service for customers travelling within the US or Canada. This service is available by calling 1-800-864-8331 and is designed for customers who do not have access to the internet or a mobile device. With this option, passengers can provide their baggage preferences, arrange for boarding documents, and receive information about baggage service charges.
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Check-in times for domestic flights
For United Airlines, the check-in time for most domestic flights is from 24 hours to 45 minutes before departure with checked baggage. If you are not checking in any baggage, the minimum check-in time is 30 minutes before departure. However, some airports have different check-in times. For example, the minimum check-in time for Baltimore (BWI), Kahului (OGG), Salt Lake City (SLC), San Juan (SJU), and Aguadilla (BQN) is 45 minutes before departure, while for Guam, it is 60 minutes.
There are several ways to check in for a United Airlines flight, including online, with the United app, by phone, or at the airport. Online check-in is available 24 hours before your flight's departure and can be done on the United website or mobile app. With online check-in, you can also check your baggage, pay fees for checked baggage, and make updates to your travel plan, such as changing your flight or requesting a seat change.
If you prefer to check in at the airport, United offers self-service kiosk check-in, where you can print your boarding pass and check your baggage. At the airport, you can also check in with a United representative at the ticket counter. Curbside check-in is available at most U.S. airport locations from 30 minutes to 4 hours before departure, depending on your departure city and destination.
It is recommended that you arrive at the airport ticket counter at least two hours before your domestic flight to allow enough time to check your bags and get through security to your gate. United Airlines advises being at the boarding gate at least 15 minutes before departure for domestic flights to ensure you are on board before the doors are closed.
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Online check-in
United Airlines offers a variety of check-in options to ensure a seamless and comfortable experience for its customers. Online check-in is available for all United Airlines flights, both domestic and international.
To check in online, visit the United Airlines website and enter the required flight and government-issued ID details. You can check in from 24 hours before departure up to 1 hour prior. This option allows you to modify your loyalty account number, check in your luggage, and select your preferred seat. You can also request seat changes and pay fees for checked baggage. After checking in online, you can use a dedicated kiosk to check your bags at United Airlines hub airports and select cities. Alternatively, you can check your baggage at the ticket counter or curbside skycap (where available).
Mobile check-in is also available for flights operated by United and United Express. You can check in on your mobile device using the United mobile website or the United app. This option is available up to 24 hours before your scheduled departure, and the minimum check-in time set for your departure airport applies.
It is recommended that you arrive at the airport at least 2 hours before departure for domestic flights and 3 hours for international flights, even if you have checked in online. For international flights, all passengers must check in at least 60 minutes prior to scheduled departure, with some flights requiring 75 or 90 minutes.
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Checking in at the airport
First, it's important to know the check-in times for your specific flight. For domestic flights, passengers with carry-on baggage only must check in at least 30 minutes before departure, while those with checked baggage should allow for 45 minutes. International flights require a minimum check-in time of 60 minutes before departure, with some airports requiring 75 or 90 minutes. It's always a good idea to check the specific requirements for your departure airport.
United Airlines offers several convenient ways to check in at the airport. You can use the self-service kiosk option, where you can print your boarding pass and check your baggage. This option is usually available from 30 minutes to 3 hours before departure. Alternatively, you can check in with a United representative at the ticket counter, which is typically available during the same time frame. If you prefer a more traditional approach, curbside check-in is available at most U.S. airport locations, allowing you to check in from 30 minutes to 4 hours before departure.
It's worth noting that check-in times can vary depending on your specific circumstances. For example, special needs passengers, such as unaccompanied minors or those travelling with pets, may have different requirements. Additionally, certain airports may have their own unique check-in times, so it's always best to check beforehand to ensure a smooth travel experience.
When checking in at the airport, don't forget to bring the necessary documentation. You will need a photo ID, as well as your flight reservation code, flight number, destination, or electronic ticket number. By having everything in order, you can ensure a seamless check-in process and start your travel journey on a positive note.
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Boarding gate arrival
For domestic flights within the US, you must be on board the aircraft at least 15 minutes before the scheduled departure time of your flight. For international flights, you must be at the boarding gate at least 30 minutes before your flight's scheduled departure time.
United Airlines' minimum check-in times range from 30 minutes to 90 minutes, depending on the type of flight. If you have luggage to check, you may have to check in earlier. For domestic flights, passengers with carry-on baggage only must check in at least 30 minutes before the scheduled departure from any airport, with the following exceptions: Baltimore (BWI), Kahului (OGG), Salt Lake City (SLC), San Juan (SJU), and Aguadilla (BQN) – 45 minutes before scheduled departure, and Guam – 60 minutes before scheduled departure. For passengers with checked baggage, the minimum check-in time is 45 minutes prior to the scheduled departure. For international flights, all passengers must check in at least 60 minutes prior to scheduled departure, with the following exceptions: 75 minutes for flights from Lima, Peru, and 90 minutes for flights from Latin America, the Caribbean St. Thomas (STT), Asia and the Pacific Kosrae (KSA), Chuuk (TKK), Kwajalein (KWA), Manila (MNL), Palau (ROR), Pohnpei (PNI), Saipan (SPN), and Yap (YAP).
You can check in for your United Airlines (UA) flight online, starting 24 hours and ending 60 minutes before the scheduled departure time. You can also check in at the airport, using a self-service kiosk, or with a United representative at the ticket counter. If you are checking in at the airport, United Airlines check-in time at the airport ticket counter is from 3 hours to 45 minutes prior to departure if you’re travelling with checked baggage. For international flights, the check-in time is from 3 hours to 1 hour before departure for most flights.
If you are checking in online, you will need your confirmation code, e-ticket number, or frequent flyer account. If you are checking in at the airport, you will need your photo ID and your flight reservation code, flight number, destination, or electronic ticket number.
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Frequently asked questions
You can check in for your United Airlines flight online or via the app from 24 hours before your flight's scheduled departure time.
The latest time for checking in online is 60 minutes before departure.
The latest time for checking in at the airport is 30 minutes before departure for domestic flights and 60 minutes for international flights.
United Airlines recommends that you arrive at the airport at least 30 minutes before departure for domestic flights and at least 60 minutes for international flights.
It is recommended that you arrive at the airport two hours before your flight for domestic flights and three hours for international flights.





































