Carry-On Baggage Allowances

Airline	Carry-On Size (inches)	Carry-On Weight Limit	Personal Item Size (inches)	Notes
Alaska Airlines	22 x 14 x 9	None	Must fit under seat	No weight limit specified.
Allegiant Air	22 x 14 x 9	None	16 x 15 x 7	Carry-on fees apply.
American Airlines	22 x 14 x 9	None	18 x 14 x 8	Applies to all fare types.
Delta Air Lines	22 x 14 x 9	None (except certain international routes)	Must fit under seat	Weight limits apply on select international flights.
Frontier Airlines	24 x 16 x 10	35 lbs	18 x 14 x 8	Carry-on fees apply.
Hawaiian Airlines	22 x 14 x 9	25 lbs	Must fit under seat	Strict weight enforcement.
JetBlue Airways	22 x 14 x 9	None	17 x 13 x 8	Blue Basic fares exclude carry-on.
Southwest Airlines	24 x 16 x 10	None	16 x 13 x 8	Two free checked bags included.
Spirit Airlines	22 x 18 x 10	None	18 x 14 x 8	Carry-on fees apply.
Sun Country Airlines	24 x 16 x 11	35 lbs	17 x 13 x 9	Carry-on fees apply.
United Airlines	22 x 14 x 9	None	17 x 10 x 9	Basic Economy excludes carry-on.

Note: Always verify with the airline before traveling, as policies can change.