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Checked bag fees by airline: how they work

Checked bag fees are charged per bag, per direction, and they change without much notice - one major US carrier raised its first-bag fee twice inside twelve months. Here is the anatomy of the charge, and the official page to check for your airline.

By Stephen V.Updated How we test

A checked bag fee is charged per bag, per direction- so a round trip with one checked bag is two charges, not one. That single fact is the most common and most expensive misunderstanding in air travel, and it is why a "cheap" fare with two checked bags on a round trip can cost more in baggage than the seat did.

Why this page does not print dollar amounts.Baggage fees change frequently and without much warning - one major US carrier ended a decades-old free-bag policy in 2025 and then raised its first-bag fee again in 2026. A stale number on a page like this does not just look careless, it costs you money at the counter when you budgeted for the old figure. So we explain how the charge is built and link every carrier's own live fee page instead. Check yours before you book, and again before you fly.

The five things that decide what you pay

  1. Which bag it is. The first checked bag is cheaper than the second, and the second is usually far cheaper than the third. Fees escalate steeply, because the airline is pricing you out of the hold rather than pricing the service.
  2. Your fare class. On most US legacy carriers a Basic Economy fare strips out the free or discounted bag that a standard economy fare includes. The headline fare comparison you did on a booking site may not have included that.
  3. Where you are flying. Domestic, short-haul international and long-haul international are priced completely differently, and many transatlantic and transpacific economy fares still include a checked bag when the equivalent domestic fare does not.
  4. When you pay. Prepaying online during check-in is normally cheaper than paying at the airport counter. The difference is not trivial and it applies per bag, per direction.
  5. What you are.Elite status, a co-branded airline credit card, an active-duty military ID or traveling as a companion on someone else's status can all zero the fee out entirely. This is where the majority of "free bag" outcomes actually come from.

Where to check each airline's current fee

These are the carriers' own baggage pages - the only source that is correct today. Every one of them publishes its current fee schedule, its size and weight limits, and its overweight and oversize surcharges on the same page.

AirlineWhat to look for
American AirlinesFirst and second bag fees by region; Basic Economy exclusions; elite and card waivers
Delta Air LinesDomestic vs international fee tables; SkyMiles Medallion and card waivers
United AirlinesPrepay discount for paying online; Basic Economy rules; MileagePlus waivers
Southwest AirlinesCurrent first and second bag fees, and which fares, tiers and cardholders still get bags free
Alaska AirlinesBag fees plus the published baggage-delivery service guarantee
JetBlueFee varies by fare bundle and by how far ahead you pay
Spirit & FrontierFees rise the later you pay - cheapest at booking, most expensive at the gate

Every link is in Sources below. Fees, waivers and fare-class rules all change; confirm on the carrier's own page before you book.

Overweight and oversize are separate charges

These are the ones that ambush people, because they stack on top of the bag fee rather than replacing it. Most US carriers set the standard checked allowance at 50 lb (23 kg) and 62 linear inches - height plus width plus depth added together. Go past either and you pay a surcharge as well as the ordinary checked bag fee, and the surcharge is usually larger than the fee itself. Go far enough past it and many carriers simply refuse the bag as cargo. The exact thresholds and tiers are in our checked bag size and weight limits guide.

The practical defense is a luggage scale used at home, where your options are to move something into your carry-on rather than to repack on an airport floor or pay. It costs less than one overweight charge.

How to pay less, in order of how much it saves

  • Do not check a bag. Obvious, and still the biggest single saving. A carry-on and a personal item cover most trips up to a week if you pack properly - see how to pack a carry-on.
  • Check the fare class, not just the fare. A standard economy seat that includes a bag frequently beats a Basic Economy seat plus two bag charges.
  • Prepay online. Free money, available to everyone, at check-in.
  • Consolidate. Two people traveling together with one large checked bag between them pay one fee, not two - as long as it stays under 50 lb.
  • Buy a lighter suitcase. On a 50 lb limit, every pound of empty case is a pound of clothes you cannot bring. Our lightweight luggage picks rank bags on exactly that.

The cheapest checked bag is the one you do not check. If your trip is a week or less, a well-packed carry-on plus a personal item usually does it. Our best carry-on luggage roundup ranks the bags built to the standard cabin limit, and what size luggage for a week works out when you genuinely do need the hold.

Questions

Frequently asked

Are checked bag fees charged each way?
Yes. The fee is per bag, per direction, so a round trip with one checked bag means paying twice. This is the single most common budgeting mistake with baggage fees.
Is it cheaper to pay for a checked bag online or at the airport?
Online, on every major US carrier that offers the distinction. Prepaying during online check-in is normally cheaper than paying at the counter, and the saving applies per bag and per direction. The ultra-low-cost carriers take this furthest - their fees rise at each stage from booking to the gate.
Does Basic Economy include a checked bag?
Usually not on US carriers, and that exclusion is often what makes a Basic Economy fare look cheaper than a standard one. Compare the total including bags, not the headline fare. On many long-haul international fares a checked bag is still included, so the answer depends on the route as well as the fare.
What happens if my bag is overweight?
You pay an overweight surcharge on top of the ordinary checked bag fee, and the surcharge is usually larger than the fee. Most US carriers set the limit at 50 lb (23 kg) and 62 linear inches - see our checked bag limits guide for the tiers, and weigh the bag at home.
Who still gets free checked bags?
Mostly airline elite status members, holders of the airline's co-branded credit card, passengers on certain bundled or premium fares, and active-duty military. The specific combinations differ by carrier and change, so check your airline's own baggage page for the current list.

Keep reading

Related

Receipts

Sources

We do not run a testing lab, and we do not pretend to. Specifications come from the manufacturer's own listing or manual, and size and weight limits from the airline's official baggage-policy page. Where we could not verify something, we say so on the page rather than quietly leaving it out. Read our full method.