To add baggage on United Airlines, you can prepay for your checked bags at least 24 hours before your flight. This can be done by visiting the United Airlines website and following these steps:
- Go to the Prepay for your checked bags page.
- Sign in to your account or enter your reservation number and last name.
- Follow the prompts to add the desired number of checked bags and pay the applicable fees.
Please note that the maximum size of a checked bag can be 30 in x 20 in x 12 in (76 cm x 51 cm x 30 cm), including handles and wheels[1]. You can use the Bag Fee Calculator to find out how much it will cost to check your bags[2].
Alternatively, you can add baggage, seats, and other extras to your flight through the airline’s “Manage My Booking” page. You’ll need your airline reference, which can be found on the Flights section of your documentation[3].
Citations:
[1] https://www.united.com/en/us/fly/baggage/checked-bags.html
[2] https://www.united.com/en/us/baggage-calculator/any-flights
[3] https://support.thomascook.com/en/support/solutions/articles/80001018320-how-do-i-add-baggage-pre-book-seats-and-other-extras-to-my-flight-