✈️carry-on size limits by airline (check the date)

the number that gets your bag gate-checked. sizes barely change, enforcement does - they're scanning bags now instead of eyeballing them

American Airlines - 22 x 14 x 9 in

Delta - 22 x 14 x 9 in

45 linear inches total (L+W+H), same number three different ways

United - 22" x 14" x 9"

Southwest - 24 x 16 x 10 in

biggest bag of the majors and still no fee for it, don't know why more people don't fly them for this alone

jetblue: 22 x 14 x 9

Alaska Airlines - 22x14x9

same 45 linear inch rule as delta

Frontier - 24 x 16 x 10 in

check the date on this one, they charge for the carry-on now, only the personal item is free. gate-checked once, never again

Allegiant - 22 x 16 x 10 in

same deal as frontier, carry-on costs extra, personal item doesn't. found this out updating the list this week

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