US airline checked bag fees compared
The first checked bag costs $45 to $50 and the second $55 to $60 on American, Delta, Southwest and Alaska for standard domestic travel. United uses a fee calculator. Details below, each from the airline's own website.
First and second checked bag, standard domestic fares
| Airline | 1st bag | 2nd bag | 3rd bag | Weight limit |
|---|---|---|---|---|
| American Airlines | $50 ($45 online) | $60 ($55 online) | $200 | 50 lb |
| Delta Air Lines | $45 | $55 | $200 | 50 lb |
| Southwest Airlines | $45 | $55 | $150 | 50 lb |
| Alaska Airlines | $45 | $55 | $200 | 50 lb |
| United Airlines | Use United calculator | Use United calculator | See United | 50 lb (Economy) |
Fees depend on fare, route and when the ticket was bought. See each airline page for the conditions and sources: American, Delta, Southwest, Alaska, United.
Carry-on is separate
All five airlines let you bring a carry-on bag and a personal item on most fares, but Basic Economy and similar fares can differ. Check carry-on sizes on every airline's cabin bag size page.
Source: American, Delta, Southwest, Alaska, United. Checked 10 October 2026. Fees change often and depend on when you bought your ticket, your fare and your route: confirm with the airline before you fly.
Frequently asked questions
Which US airline has the cheapest first checked bag?
Delta, Southwest and Alaska charge $45 for the first bag on standard domestic fares; American charges $50 ($45 if you pay online). United publishes prices only through its calculator.
Do any US airlines still offer free checked bags?
Some fares and members do: for example Southwest Choice Extra, Delta Medallion members, American AAdvantage Gold and above, and Alaska Business or First Class. Check each airline page for the exact rules.
What is the usual weight limit for a checked bag?
50 lb (23 kg) per bag on standard fares at all five airlines, with 70 lb allowed in premium cabins or for some members.