Sun Country Airlines vs Viva Aerobus: fleets and facts compared

Sun Country's Bags and Optional Services page gives the following limits. Sizes and weights only; bag options other than the under-seat item are charged for.

• Under-seat item (included with every reservation): up to 17 x 13 x 9 in, such as a purse or backpack, which must fit under the seat in front.
• Overhead bag (paid option): up to 24 x 16 x 11 in and 35 lb, and must fit the sizer box. Only travellers who have bought this option may use the overhead bins.
• Checked bag (paid option): up to 62 linear inches (length + width + depth) and 50 lb. Heavier and larger bags cost extra.
• Maximum accepted: 80 linear inches or 100 lb. Bags of 70 lb or more are not accepted on flights to or from Canada, Jamaica and Puerto Rico.
• Four or more checked bags must be arranged by phone or at airport check-in.
• Mobility devices and needed medical equipment do not count as extra overhead bags.

Source: Sun Country Airlines, "Bags and Optional Services", read on 24 October 2026.

Source: airline baggage page, read 2026-10-24.

Viva's baggage policy page (US English site) gives these limits. Sizes and weights only; what is included depends on the fare you choose.

• Personal item: included on every fare. It must fit under the seat in front and not exceed 18 x 14 x 8 inches. Examples are a handbag, laptop case or backpack.
• Carry-on bag: goes in the overhead bin. Maximum 22 x 16 x 10 inches including wheels and handles. Weight limit is 22 lb on the Switch fare, or 33 lb on Smart or with extra weight added.
• Checked bag: up to 33 lb when chosen on the Switch fare, or up to 55 lb on Smart. Extra weight can be bought up to 70 lb per bag. Maximum size is 62 linear inches (length + width + height), including handles and wheels.
• Flights to the United States: a maximum of three checked bags per passenger, and powders over 12 oz (350 ml) may not travel in the cabin.
• Medical equipment: carried in the cabin at no extra charge within the carry-on size (22 x 16 x 10 in) and weight (22 lb) limits.

Source: Viva, "Baggage Policies", read on 24 October 2026.

Source: airline baggage page, read 2026-10-24.