Which has the bigger carry-on allowance, Breeze or Southwest?

Breeze: 22 × 14 × 9 in (56 × 36 × 23 cm), up to 35 lb (15.9 kg). Southwest: 24 × 16 × 10 in (61 × 41 × 25 cm). Southwest allows the larger bag.

Do Breeze and Southwest include a carry-on on basic economy?

Breeze: The Nice bundle includes only a personal item; Nicer and Nicest add a carry-on. Southwest: Even the Basic fare includes a carry-on and a personal item. Checked bags cost extra on Basic, Choice and Choice Preferred fares.

Are Breeze and Southwest partners?

They aren't in the same alliance (Breeze: none; Southwest: none), so miles and status generally don't transfer between them.

MX vs WN · 2026 comparison

Breeze vs Southwest

Q: Where do Breeze and Southwest fly from?

Breeze flies point-to-point. Southwest's are Denver (DEN), Las Vegas (LAS), Chicago (MDW), Baltimore (BWI), Dallas (DAL). The better pick is often whichever flies nonstop from your airport.

Breeze wins on cheaper checked bags; Southwest wins on a bigger carry-on, a carry-on on its cheapest fare and a more generous carry-on weight limit. Here's how they compare on bags, fees, comfort, reliability and loyalty.

Verified Oct 17, 2026By Steven MoHow we check Report a correction

Breeze

Wins 1 category

Cheaper checked bags

Southwest

Wins 3 categories

A bigger carry-on
A carry-on on its cheapest fare
A more generous carry-on weight limit

Quick verdict

Breeze wins on cheaper checked bags; Southwest wins on a bigger carry-on, a carry-on on its cheapest fare and a more generous carry-on weight limit. Check the cheapest fare's bag rules before you compare prices.

Carry-on size: Breeze: 22 × 14 × 9 in · Southwest: 24 × 16 × 10 in
Carry-on on the cheapest fare: Breeze: Costs extra on basic fares · Southwest: Included on every fare
First checked bag (regular economy): Breeze: $35–$41 · Southwest: $45

Side by side

	Breeze	Southwest
Bags
Carry-on size	22 × 14 × 9 in	24 × 16 × 10 in
Carry-on on the cheapest fare	Costs extra on basic fares	Included on every fare
Carry-on weight limit	35 lb (15.9 kg)	None published
Personal item	17 × 13 × 8 in	16.25 × 13.5 × 8 in
First checked bag (regular economy)	$35–$41	$45
Network
Alliance	None	None
Loyalty program	BreezePoints	Rapid Rewards
Main hubs	Point-to-point	DEN, LAS, MDW, BWI, DAL

Highlighted values are better for travelers. Fees are for U.S. domestic economy flights; on-time data is 2025 U.S. DOT figures for each airline's own flights.

Bags and fees

Breeze allows a carry-on up to 22 × 14 × 9 in (56 × 36 × 23 cm), and Southwest up to 24 × 16 × 10 in (61 × 41 × 25 cm), so Southwest's is roomier.

Breeze charges for it on its cheapest fare, while Southwest includes it on every fare.

Breeze caps carry-ons at 35 lb (15.9 kg); Southwest publishes no limit.

Personal items: 17 × 13 × 8 in (43 × 33 × 20 cm) on Breeze, and 16.25 × 13.5 × 8 in (41 × 34 × 20 cm) on Southwest.

A first checked bag on Breeze costs $35–$41 on all Breeze flights, and a first checked bag on Southwest costs $45 on flights within the U.S. mainland.

Basic economy

Breeze (Nice): The Nice bundle includes only a personal item; Nicer and Nicest add a carry-on.

Southwest (Basic): Even the Basic fare includes a carry-on and a personal item. Checked bags cost extra on Basic, Choice and Choice Preferred fares.

Loyalty and where they fly

Breeze is not in an alliance and Southwest is not in an alliance.

Loyalty programs: BreezePoints (Breeze) and Rapid Rewards (Southwest).

Breeze flies point-to-point without big hubs. Southwest's are Denver (DEN), Las Vegas (LAS), Chicago (MDW), Baltimore (BWI), Dallas (DAL). The best choice often comes down to which airline flies nonstop from your airport.

Which should you book?

Choose Breeze if you want…

cheaper checked bags

Choose Southwest if you want…

a bigger carry-on
a carry-on on its cheapest fare
a more generous carry-on weight limit
nonstops from DEN, LAS, MDW

On a route both fly, the cheaper ticket isn't always the cheaper trip: add the bags you'll actually bring, and check the fare rules before you book.