Alaska Airlines Checked Baggage: Fees, Size & Weight (2026)
Alaska's first checked bag is $35 prepaid ($40 at the airport) and the second is $45 on domestic routes. Bags must be under 50 lb and 62 linear inches. Alaska's co-brand card gives a free checked bag for the cardholder and up to six companions — the most generous card benefit of any US airline.
| Bag | Prepaid | At airport |
|---|---|---|
| First checked bag | $35 | $40 |
| Second checked bag | $45 | $45 |
| Third+ bag | $150 | |
Does Alaska Airlines charge for checked bags?
Alaska Airlines charges $35 prepaid ($40 at the airport) for the first checked bag and $45 for the second on typical domestic routes.
Who flies free: Alaska/Atmos Rewards co-brand card holders get a free checked bag for the cardholder AND up to six companions on the same reservation — the widest card benefit of any US carrier. Atmos Rewards elite: Silver 1 free bag, Gold 2, Platinum/Titanium 3.
Weight and size limits
Weight: 50 lb (23 kg)
Size: 62 linear inches (length + width + height)
Overweight: $100 for 51-70 lb, $200 for 71-100 lb
Oversize: $200 for bags over 62 linear inches; bags over 115 linear inches not accepted
How to avoid the fee on Alaska Airlines
Alaska/Atmos Rewards co-brand card holders get a free checked bag for the cardholder AND up to six companions on the same reservation — the widest card benefit of any US carrier. Atmos Rewards elite: Silver 1 free bag, Gold 2, Platinum/Titanium 3.
How Alaska Airlines compares
See checked-baggage fees and limits for Allegiant Air, American Airlines, British Airways — fees, weight caps, and free-bag rules differ airline by airline.
Frequently asked questions
Does Alaska Airlines charge for checked bags?
Alaska Airlines charges $35 prepaid ($40 at the airport) for the first checked bag and $45 for the second on typical domestic routes.
What is Alaska Airlines's checked bag weight limit?
50 lb (23 kg)
What is Alaska Airlines's checked bag size limit?
62 linear inches (length + width + height)
Who flies free with Alaska Airlines checked bags?
Alaska/Atmos Rewards co-brand card holders get a free checked bag for the cardholder AND up to six companions on the same reservation — the widest card benefit of any US carrier. Atmos Rewards elite: Silver 1 free bag, Gold 2, Platinum/Titanium 3.