Alaska Airlines vs Southwest Airlines: Carry-On Policy Comparison
Side-by-side comparison of cabin bag size limits, weight allowances, personal item rules, and baggage fees.
Strictest overall
Alaska Airlines
Alaska Airlines has more restrictive cabin bag limits based on total linear dimensions.
| Policy | Alaska Airlines | Southwest Airlines | Strictest |
|---|---|---|---|
| Cabin bag size | 56×35×23 cm | 56×36×23 cm | Alaska Airlines |
| Cabin bag weight | No limit | No limit | Tied |
| Cabin bags allowed | 1 | 1 | Tied |
| Personal item | Included | Included | Tied |
| Personal item size | 43×33×20 cm | 43×33×18 cm | Southwest Airlines |
| Enforcement | lenient | lenient | Tied |
| Overweight fee (online) | — | — | — |
| Oversize fee (online) | — | — | — |
Check your bag on Alaska Airlines →Check your bag on Southwest Airlines →Full Alaska Airlines policy →Full Southwest Airlines policy →
Frequently asked questions
Which is stricter — Alaska Airlines or Southwest Airlines?▾
Alaska Airlines has stricter carry-on size limits overall based on the total linear dimensions of the allowed bag.
What is the carry-on size limit for Alaska Airlines?▾
Alaska Airlines allows a carry-on bag of 56×35×23 cm in economy class.
What is the carry-on size limit for Southwest Airlines?▾
Southwest Airlines allows a carry-on bag of 56×36×23 cm in economy class.
Does Alaska Airlines allow a personal item?▾
Yes, Alaska Airlines allows one personal item (underseat bag) in addition to the main cabin bag.
Find the Right Bag
Not sure which carry-on bag fits both airlines? We've reviewed the best options.
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