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Check-in and airport details

To help ensure that your trip goes smoothly, please allow enough time for checking in and passing through security. When traveling around holidays or other peak travel times, additional time may be needed.

The Transportation Security Administration (TSA) is currently requiring enhanced security measures for all flights to the United States departing from non-U.S. locations. We recommend that you ensure that any liquids, aerosols or gels that are included in your carry-on bags adhere to the restrictions currently in place. Visit the TSA website for details regarding these security measures

Check-in guidelines
The times below apply to flights operated by United®, United Express®, Continental®, Continental Express® and Continental Connection. For flights operated by other airlines, including our codeshare partners, the applicable check-in time limit for that airline will apply.

United has the right to cancel reservations, deny boarding and refuse the acceptance of checked baggage of any customer who does not meet their applicable check-in time limit.

Check-in is available starting 24 hours before your scheduled departure. Check in now

Check-in and boarding requirements for domestic flights:
For flights within the U.S., Guam, Puerto Rico and the U.S. Virgin Islands, customers and their bags must meet the check-in and boarding time requirements below. These requirements refer to the minimum amount of time before scheduled departure.

Departure airport

Check-in and baggage check completed:

Available for boarding at the gate:

Atlanta, GA (ATL) 45 minutes 15 minutes
Charlotte, NC (CLT) 30 minutes 15 minutes
Chicago, IL (ORD)

45 minutes

15 minutes

Cleveland, OH (CLE) 45 minutes

15 minutes

Denver, CO (DEN)

45 minutes

15 minutes

Guam (GUM) 60 minutes 30 minutes
Houston, TX (IAH)

45 minutes

15 minutes

Indianapolis, IN (IND)

30 minutes

15 minutes

Kahului, Hawaii (OGG)

45 minutes

15 minutes

Kona, HI (KOA)

45 minutes

15 minutes

Las Vegas, NV (LAS)

45 minutes

15 minutes

Los Angeles, CA (LAX)

45 minutes

15 minutes

New York, NY (JFK)

30 minutes

15 minutes

Newark, NJ (EWR)

45 minutes

15 minutes

Ontario, CA (ONT)

30 minutes

15 minutes

Orlando, FL (MCO)

45 minutes

15 minutes

Orange County, CA (SNA)

30 minutes

15 minutes

Philadelphia, PA (PHL)

30 minutes

15 minutes

Portland, OR (PDX)

30 minutes

15 minutes

Reno, NV (RNO)

30 minutes

15 minutes

Sacramento, CA (SMF)

30 minutes

15 minutes

San Francisco, CA (SFO)

45 minutes

15 minutes

San Juan, PR (SJU)

30 minutes

15 minutes

Seattle, WA (SEA)

45 minutes

15 minutes

Tampa/St. Petersburg, FL (TPA)

45 minutes

15 minutes

Washington, D.C. - Dulles (IAD)

45 minutes

15 minutes

All other airports within the U.S., Puerto Rico and the U.S. Virgin Islands 30 minutes 15 minutes

The minimum check-in time requirement for customers not checking bags on flights within the U.S., Puerto Rico and the U.S. Virgin Islands is 30 minutes, except for Guam (GUM), which is 60 minutes.

Check-in and boarding requirements for international flights:
For international flights, customers and their bags must meet the check-in and boarding requirements below. These requirements refer to the minimum amount of time before scheduled departure.

Departure airport

Check-in and baggage check completed:

Available for boarding at the gate:

Federated States of Micronesia, Fiji, Marshall Islands, Palau:

  • Koror (ROR)
  • Kosrae (KSA)
  • Kwajalein (KWA)
  • Majuro (MAJ)
  • Nadi (NAN)
  • Pohnpei (PNI)
  • Truk (TKK)

90 minutes 60 minutes
Manila, Philippines (MNL) 90 minutes 60 minutes
Lima, Peru (LIM) 75 minutes 30 minutes
All other airports 60 minutes 30 minutes

Security wait times and ticket counter hours of operation
Below you'll find security checkpoint wait times and ticket counter hours of operation for many airports within the U.S. and worldwide.


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