Checked baggage fees are not one flat number. They step up in tiers, with a price for the first bag and a higher price for the second. The third bag jumps hard.
On American Airlines a first bag currently runs $45 online or $50 at the airport. The second bag is $55 online or $60 at the airport. A third bag is $200 no matter how you pay.
That tiered structure is what trips people up, not any single price. Checked baggage fees can differ on the same route and the same plane. It depends on how you booked and when you paid.
This page covers the tiers, the online versus counter gap, and what happens at a connection. It also covers whether the fee ever comes back.
How the fee tiers are structured
Airlines price checked bags per bag, not per pound up to the weight limit. The price rises with each additional bag, and it rises fast after the second one. The table below shows how three carriers structure that climb for a standard domestic itinerary as of September 2026.
| Airline and fare | 1st bag (online / airport) | 2nd bag (online / airport) | 3rd bag |
|---|---|---|---|
| American, Main Cabin | $45 / $50 | $55 / $60 | $200 |
| American, Basic Economy | $50 / $55 | $60 / $65 | $200 |
| Delta, any domestic fare | $45 | $55 | Priced as excess baggage |
| Southwest, standard fare | $45 | $55 | $150 |
| Southwest, Choice Extra fare | Free | Free | $150 |
This is a sample, not the full market. For the full comparison across airlines, use the baggage fees hub.
To price your own trip, run it through the baggage cost tool instead of guessing at the gate.
Why the third bag jumps so sharply
A third checked bag is not really priced like a bag. It is priced like a deterrent. A fee of $150 to $200 sits well above what one more suitcase actually costs an airline to handle.
Most travelers never need a third bag. The carriers that still sell one treat it as an edge case, not a normal add-on.
The high price also nudges movers and heavy packers toward a cargo shipper instead. That is exactly what the pricing is designed to do.
Prepaying online versus paying at the counter
On American, prepaying online or in the app saves $5 on both the first and second bag. That gap sits between the airport rate and the online rate, on the same bag, on the same flight.
The $5 online discount predates the 2026 price update. It still applies under the new rates.
Delta and Southwest currently publish one flat price instead of a separate online rate. The size of that gap is specific to each carrier.
Check the airline’s own page before you reach the counter. The bag fee calculator can save you that $5 or $10 surprise at check-in.
Per segment or per journey: what changes at a connection
American describes its checked baggage fees as charged “per person and each direction of travel.” Delta uses the same “each way” language.
In practice, one paid bag fee covers every connecting flight in that direction. That holds as long as the whole trip is booked on a single ticket.
The exception is when a connection is not really one trip. Two separate tickets to the same city can each carry their own fee. So can a stopover that forces you to collect and recheck your bag.
Travelers on FlyerTalk have reported exactly this problem. A bag gets billed twice on what felt like one itinerary. The booking, it turns out, was actually two tickets stitched together.
Fare class and round trip versus one way pricing
Fare class can change the fee even when the flight and the plane are identical. American now charges Basic Economy passengers $5 more per bag than Main Cabin passengers. That gap applies to both the first and second bag, on that same flight.
Delta does not currently split its checked bag price by fare class the same way. One American flight can carry two different bag prices depending on the fare code. The equivalent Delta flight does not.
Round trip pricing is simpler. Neither American nor Delta sells a separate round trip bag rate. A round trip fee is just the one way price, charged twice, once for each direction.
Is a checked baggage fee refundable
Sometimes, and the rule is narrower than most people assume. The Department of Transportation requires a refund of your bag fee if the airline declares your bag lost.
The same refund applies if your bag counts as significantly delayed. On a domestic flight, that means it was not returned within 12 hours of arrival, per DOT guidance.
A cancelled flight can also trigger a refund of the fee. That only happens because the service you paid for was never provided. Simply changing your mind about traveling will not get the fee back on its own.
If your bag actually goes missing or shows up late, there is a next step. The lost, delayed, and damaged baggage guide covers how to file that claim.
Codeshare and interline itineraries
When your ticket is sold by one airline but flown by another, one rule matters most. The operating carrier’s checked bag rule usually applies, not the marketing carrier’s, and that gap catches people off guard.
American’s own baggage page sends partner airline passengers to separate pages for British Airways, Iberia, and Qatar Airways, among others. That split exists precisely because the rules differ by operating carrier.
Southwest is explicit about this too. Its checked bag benefits, including free bags on a Choice Extra fare, do not carry over to a flight ticketed with a partner carrier.
Before you pay a checked baggage fee on a mixed itinerary, confirm which airline is actually operating each leg. You can compare specific carriers, including American, Delta, and Southwest, on their own airline pages.
Common questions
Do checked baggage fees apply to both directions of a round trip?
Yes. American and Delta both charge the fee per direction. A round trip simply pays the one way rate twice.
Will I be charged the checked bag fee twice on a connecting flight?
Not if the whole trip is on one ticket. You can be charged twice if your itinerary is actually two separate tickets, or if you must recheck your bag partway through.
Is the checked baggage fee refundable if my flight is cancelled?
It can be, because DOT treats an ancillary service you never received as refundable. It is not automatic the way a ticket refund is, so you may need to request it from the airline.
Does Basic Economy cost more to check a bag?
On American, yes, by $5 per bag on the first and second bag. On Delta, the published price does not currently change by fare class.
What happens to my bag fee on a codeshare or partner flight?
The operating carrier’s checked bag policy generally applies, not the airline whose name is on your confirmation. Check the operating carrier’s own page before you fly.
Why is the third checked bag so much more expensive than the second?
Airlines price it as a deterrent rather than a normal service fee. Most passengers never check a third bag, so the price is set high enough to keep it rare.