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Sun Country Airlines vs Allegiant Air

Cabin and carry-on baggage limits for Sun Country Airlines and Allegiant Air, side by side.

⚠ These figures are awaiting manual verification against the airline's official page. Treat them as preliminary.

Sun Country Airlines allows the larger carry-on — its longest side is 61 cm, versus 55 cm for Allegiant Air.

Allegiant Air is more generous for personal items — up to 45 cm, versus 43 cm on Sun Country Airlines.

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Airline Verdict Fits as Margin Checked on Source

Enter your bag's size above to see which airlines accept it.

Sun Country Airlines SY More room
Max dimensions
61 × 41 × 28 cm
Total linear
Not published
Weight limit
15.9 kg per piece
Pieces
1
Allegiant Air G4
Max dimensions
25 × 40 × 55 cm
Total linear
Not published
Weight limit
Not published
Pieces
1

Cabin & carry-on allowances

Allowance Sun Country Airlines Allegiant Air
Carry-on Included In: bundle Not directly comparable: the two rows apply under different conditions. 61 × 41 × 28 cm · Not published · 15.9 kg per piece · 1 pc Overhead carry-on 61 x 41 x 28 cm / 15.9 kg (35 lb). Overhead carry-on bag up to 61 x 41 x 28 cm / 15.9 kg (35 lb). It is a paid option and is included only with a bundle; the No Bundle fare does not include it. Not on record
Not directly comparable: the two rows apply under different conditions. Not on record 25 × 40 × 55 cm · Not published · Not published · 1 pc Must fit in the overhead bin unaided Paid option, not included on the base fare Carry-on bag up to 25x40x55 cm. It is a paid option with no published weight limit and is not included on the base fare.
Personal item 43 × 33 × 23 cm · Not published · Not published · 1 pc Personal item 43 x 33 x 23 cm; included free. One free personal item (underseat) up to 43 x 33 x 23 cm is included with every fare. 20 × 35 × 45 cm · Not published · Not published · 1 pc Must fit under the seat in front of you Free on all fares One free personal item up to 20x35x45 cm (8x14x18 in); included on all fares.

Sources

Sun Country Airlines

Bags & optional services - Sun Country Airlines
Official · unverified Last checked: 2026-10-11

Allegiant Air

Baggage - Allegiant Air
Official · unverified Last checked: 2026-10-11