Last updated: September 8, 2026 · Airlines change cutoffs and airport rules — always confirm with the carrier for your specific airport, or call us and we’ll check.
Quick answer
United online check-in opens 24 hours before departure. As of 2026, domestic airport check-in closes 45 minutes before (up from 30), and international closes 60 minutes before. Bag drop matches: 45 min domestic / 60 min international.
United check-in deadlines at a glance
| Deadline | Domestic | International |
|---|---|---|
| Online check-in | Opens 24 hrs | Opens 24 hrs |
| Airport check-in cutoff | 45 minutes before | 60 minutes before |
| Bag drop cutoff | 45 minutes before | 60 minutes before |
The 2026 cutoff change
United extended its domestic check-in cutoff from 30 to 45 minutes before departure. The international cutoff stays at 60 minutes. This gives more buffer for bags and boarding — don’t cut it close.
How to check in & drop bags
Check in on the United app or united.com from 24 hours out. Bag counters usually open no more than ~4 hours before departure, so you can’t drop bags as early as you check in online.
Miss the cutoff?
Missing the 45/60-minute cutoff can cost you your seat. If we booked your flight, call us and we’ll rebook or find standby options fast.
Frequently asked questions
When can I check in for a United flight?
Online check-in opens 24 hours before scheduled departure through the United app or united.com.
What is United's airport check-in cutoff?
As of 2026, you must be checked in at least 45 minutes before domestic departures (up from the old 30 minutes) and 60 minutes before international departures.
What is United's bag drop deadline?
Drop checked bags at least 45 minutes before domestic flights and 60 minutes before international flights. Counters usually open no more than about 4 hours before departure.
Why did United change its check-in cutoff?
United extended the domestic check-in cutoff from 30 to 45 minutes to give more time to process bags and passengers and reduce last-minute misconnects.
How early should I arrive for United?
Plan for 2 hours before domestic and 3 hours before international flights, and note bag counters don't open as early as online check-in.
Related resources
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Booked through us? We’ll help you check in
If we booked your flight, call and we’ll confirm your check-in window, seats and bag cutoffs for your exact airport — no hold music, no fees.
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