Airlines with the Cheapest Checked Baggage Fees (2026)

If you need to check a bag, some airlines are significantly cheaper than others. Here's a ranking of airlines by checked bag cost, from free to most expensive.

Quick Answer

Cheapest checked bags (US domestic): Delta ($35), United ($35-$40), Southwest ($45), American ($45). Most expensive: Frontier ($55-$60 at gate). Southwest no longer offers free bags as of May 2025. Always pay online to save $10-$40.

FAQs

Which airline has the cheapest first checked bag?

Delta and United are the cheapest major US airlines at $35 for the first domestic checked bag. Southwest now charges $45 (increased from $35 in April 2026). American charges $45. Budget airlines like Frontier charge $35-$55 depending on when you pay.

Is it cheaper to check a bag or ship it?

For standard luggage (under 50 lbs), checking a bag is almost always cheaper ($30-$45) than shipping via FedEx/UPS ($50-$150+). Shipping only makes sense for oversized items or if you're sending bags ahead to avoid airport hassle.

Do bag fees change based on route?

Yes. International routes often include free checked bags even on airlines that charge domestically. Transatlantic flights on Delta, United, and American typically include 1 free checked bag in economy. Domestic and short-haul routes have the highest fees.

When is the cheapest time to pay for bags?

Cheapest: During initial booking. Second cheapest: Online check-in (24 hours before). Most expensive: At the airport counter or gate. The difference can be $10-$40 per bag. Always add bags during booking if you know you'll need them.