When traveling without checked bags, check-in time for domestic flights is 30 minutes prior to departure on both Alaska Airlines and Horizon Air, 45 minutes for flights departing Las Vegas and Denver, and 60 minutes for international departures.
When checking bags on Alaska Airlines and Horizon Air all checked luggage must be processed by the following cut-off times to avoid rebooking on a later flight.
| Domestic Flights | International Flights | |
|---|---|---|
| Alaska Airlines1 | 40 minutes | 60 minutes |
| Horizon Air2 | 30 minutes | 60 minutes |
1 Passengers traveling on Alaska Airlines from Denver and Las Vegas are required to have their bags checked 45 minutes prior to departure. Guadalajara has a 90-minute baggage cut off time.
2 Passengers traveling on Horizon Air from Burbank, Los Angeles, Oakland, Ontario, Portland, Palm Springs, Reno, San Diego, Seattle, San Francisco, and San Jose are required to have their bags checked 40 minutes prior to departure. Denver and Las Vegas have a 45-minute baggage cut off time.
To accommodate all travelers on a flight, passengers must be checked in and available to board at the designated boarding gate at least 30 minutes before posted departure for all flights. Failure to meet these requirements may cause the cancellation of reserved seats and/or the entire reservation.