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Checked Baggage Fees by Airline 2026: Seven Carriers, One Table, Zero Spin

Bruno Ewayu

Key takeaways

Southwest charged for a checked bag this year. Read that again. The airline that built a decade of advertising on “Bags Fly Free” now wants $45 for your first suitcase and $55 for your second.

That one change tells you most of what you need to know about checked baggage fees by airline in 2026: the free bag is dead, the price list is shorter than it looks, and the gap between the online price and the airport price is real money. This is not a post about pretending the airlines are being generous. It’s a post about what the desk actually charges you.

 

Checked baggage fees by airline: the 2026 table

Domestic economy, one way, per bag. Pulled from each carrier’s own fee page where it would load, and from the April 2026 fee announcements where it wouldn’t – not from a decade-old comparison post that still says $30.

Airline 1st checked bag 2nd checked bag 3rd checked bag
American $45 online / $50 airport $55 online / $60 airport $200
American (Basic Economy) $50 online / $55 airport $60 online / $65 airport $200
Southwest $45 $55 $150
Alaska $45 $55 $200
JetBlue (off-peak / peak) $45 / $49 $59 / $69 $200
Frontier Varies by route and date Varies Varies
United (tickets on/after Apr 3, 2026) $45 prepaid / $50 within 24h $55 prepaid / $60 within 24h $200
Delta (tickets on/after Apr 8, 2026) $45 $55 $200

 

Fine print that changes the number: Southwest’s $45/$55 applies to mainland travel booked or changed on or after April 9, 2026 – earlier bookings still pay $35 and $45. The american airlines 3rd bag fee is $200, and so is the fourth. JetBlue’s peak dates include 10/10–10/14 and 12/1–12/31/2026, and the cheaper price requires prepaying at least 24 hours before departure.

United’s $45 is also a prepaid price: pay inside 24 hours of departure and it’s $50, with the second bag going $55 to $60. Delta’s $45/$55/$200 needs a ticket purchased on or after April 8, 2026, on domestic and select short-haul international routes.

 

Weight, size and carry-on rules

Airline Checked weight limit Overweight fee Oversize fee Carry-on max Personal item max
American 50 lb / 62 in $30 (51–53 lb), $100 (54–70 lb), $200 (71–100 lb) $30 (63–65 in), $200 (66–115 in) 22 × 14 × 9 in 18 × 14 × 8 in
Southwest 50 lb / 62 in $100 (51–70 lb), $200 (71–100 lb) $200 (63–80 in) 10 × 16 × 24 in 1 free
Alaska 50 lb / 62 in $100 (51–70 lb), $200 (71–100 lb) $200 (63–115 in) 22 × 14 × 9 in 1 free
JetBlue 50 lb / 62 in $150 (51–99 lb) $150 (63–80 in) 22 × 14 × 9 in, no weight limit 17 × 13 × 8 in
Frontier 40 lb / 62 in $75 (41–50 lb), $129 (51–99.9 lb) $75 (63–110 in) 24 × 16 × 10 in, 35 lb, paid 18 × 14 × 8 in, 35 lb, free
United 50 lb / 62 in $100 (51–70 lb) [VERIFY: United oversize fee, 63–80 in] 22 × 14 × 9 in 17 × 10 × 9 in
Delta 50 lb / 62 in $100 (51–70 lb), $200 (71–100 lb) $200 (63–80 in) 22 × 14 × 9 in 1 free

Frontier’s 40-pound limit is not a typo. Everyone else gives you 50. Fly Frontier with a 45-pound bag and you’ve triggered a $75 penalty on top of whatever the bag already cost. United and Delta both sit on the standard 50 lb / 62 in, and Delta stops accepting a bag past 80 linear inches.

 

Why the online price is cheaper than the airport price

Same bag. Same airplane. Different price. The american airlines baggage check in price at the counter is $50; pay on the app and it’s $45.

Why does the gap exist? Two reasons, and neither one is about the airline’s costs.

The first is queue management. A bag paid for at the counter eats 90 seconds of an agent’s time and three minutes of your patience. Airlines would much rather you did that transaction on your phone in the parking lot.

The second is that the fee is a data point. Every bag you prepay tells the airline something about you, and every bag you pay at the gate tells them you didn’t read the email. The airport baggage price is not a quote. It’s a penalty for being late to your own trip.

Treat the airport price as the worst-case number, and the online price as the one you should actually budget. That’s a $10 swing per bag on a round trip – roughly $20 on a two-bag family trip, which is a decent airport meal you don’t have to buy.

Same logic applies to the second bag. The airline baggage charges stack: $45 + $55 = $100 each way on American before you’ve checked anything unusual. Four directions of that on a family trip and the airline baggage cost is competing with the airfare.

 

Frontier and the ultra-low-cost model

Frontier’s own bag page is refreshingly blunt about this: bag prices vary by route and by when you buy, and the airport price is higher than the online price. There is no universal number to memorise, and any blog that gives you one is guessing.

What you can actually control:

That 40-pound cap is where these fares get expensive. A standard roller packed for a week lands right around 45 pounds. On Frontier, that’s a $75 overweight fee for a bag you already paid to check.

The spirit airline fees for baggage worked the same way – route-based, date-based, and cheaper the earlier you committed. That model didn’t die with the airline. Sun Country airline baggage fees still follow the same route-by-route logic, which is why a static table can never fully capture the ultra-low-cost end of the market.

Spirit used to sit on this side of the table. Not anymore: the airline ceased operations on May 2, 2026, cancelled every flight and told customers not to come to the airport, as reported by NPR and CNBC. Its fee schedule is now historical. And what happens to bag fees people had already prepaid is unresolved – the refund notices cover tickets bought by card, not the add-ons, and there’s no customer service line left to ask.

If you’re flying an ultra-low-cost carrier, the bag is part of the fare. Price it before you book, not after.

 

What Basic Economy changes (and what it doesn’t)

At American, Basic Economy adds $5 to each of the first two bags: $50 online / $55 airport for bag one, $60 / $65 for bag two.

So on a round trip with one bag, Basic Economy costs you $10 more in bag fees than Main Cabin – on top of the seat selection restrictions and the boarding group you didn’t get.

Here’s the part most people get wrong. Basic Economy at American does not take away your carry-on. One carry-on plus one personal item, all cabins. The american airline carry-on price is already zero, and Basic Economy doesn’t change that.

Which means the smarter question isn’t “which fare is cheaper?” It’s “which fare plus which bag is cheaper?” Cheapest fare plus a checked bag can lose to a mid-tier fare that includes one. Do the addition twice – once with a bag, once without.

 

The carry-on-only math

Run this before you book, not at the airport.

Now scale it. Two adults, two kids, one checked bag each, round trip on American: 4 bags × 2 directions × $45 = $360. That is a new laptop. That is four nights in a decent motel.

Can you actually pack a week into a carry-on? Usually, yes – if the bag fits the sizer. Check your bag against the real dimensions in this carry-on size guide before you decide the fee is unavoidable. A carry-on that’s 23 inches tall instead of 22 gets gate-checked, and gate-checking is the most expensive way to check a bag.

And if you’re checking anyway, at least make the seat worth it. Being stuck in a middle seat after paying $50 for a suitcase is a bad day. Here’s where to sit on the best seats on a plane.

 

Overweight and oversize: where bags get expensive fast

The bag fee is the cheap part. The penalty fees are where the airline actually makes its money.

Then there’s size. The american airline oversize baggage fees start at $30 for 63–65 linear inches and jump to $200 for 66–115 inches. Over 115 inches and the bag doesn’t fly at all. JetBlue and Delta stop accepting at 80 inches. Frontier at 110. These aren’t fees you can pay your way out of – they’re a “leave it behind” problem.

The aa baggage weight fees are the ones that catch frequent flyers, because they’ve learned the 50-pound rule and then booked a carrier with a 40-pound limit. Weigh your bag on a bathroom scale at home and pack to 47 pounds. Give yourself a two-pound buffer for the difference between your scale and theirs.

 

International is a different spreadsheet

Everything above is domestic. International is where the table stops being useful.

The aa baggage fee international picture depends on route and fare brand – a checked bag is often included on long-haul fares and often not on a basic economy ticket to Cancún. The same split shows up in american airline international baggage fees and united airline international baggage fees: the ticket class decides the allowance, not the airline.

Delta airline international baggage fees follow the same pattern. And this is where the table above goes unreliable fastest, because international allowances reset more often than domestic fees do – Delta’s April increase stopped at domestic and select short-haul international, so a long-haul ticket may still price at the old numbers.

This is also why an american airlines baggage calculator exists in the first place. Route-specific tools beat static tables every time, and the airline’s own fee page is the only version that stays current. If you’re connecting onward, the bag question gets even messier especially on a long airport layover, where a delayed bag becomes a missed connection.

 

What I’d actually do

No hedging. Here’s the decision tree I use.

And the meta-move: cost the whole trip, not the fare. Fare plus bag plus seat plus the water bottle you buy past security. The full breakdown of how airlines hide that math is in cheap flights without hidden fees. Airlines compare on the headline because the headline is the only number they advertise. They compare the wrong thing and so do most travelers.

One more thing worth knowing before you fly: if the bag problem turns into a delay problem, the bag fee is refundable in some cases and the delay may be worth money. See the flight delay compensation guide. And if you’re hunting a lower fare to offset the bag, the VPN flight-pricing trick is worth ten minutes of your time.

 

The questions I keep getting asked

Is it cheaper to pay for a checked bag online or at the airport? Online, always, when the airline offers both. American charges $45 online and $50 at the counter; United charges $45 prepaid and $50 inside 24 hours. Frontier states flatly that airport prices are higher.

Does Southwest still let bags fly free? No. As of tickets booked or changed on or after April 9, 2026, Southwest charges $45 for the first bag and $55 for the second on mainland routes. Earlier bookings keep the old $35/$45 pricing.

How much is a third checked bag? $200 on American, Alaska, JetBlue, United and Delta, and $150 on Southwest. Budget for $200 and you won’t be surprised.

Does Basic Economy include a carry-on at American? Yes – one carry-on plus one personal item, in every cabin. Basic Economy adds $5 per bag to the checked fees, but it doesn’t remove your carry-on.

Which airline has the cheapest checked bag in 2026? Every full-service carrier in this table lands at $45 for the first bag: American, Southwest, Alaska, JetBlue, Delta and United. United’s $45 only holds if you prepay – walk up inside 24 hours and it’s $50 – and Delta’s number applies to tickets purchased on or after April 8, 2026. Frontier can be cheaper or much more expensive depending on the route and how early you buy, and Spirit is out of the comparison entirely. That’s not a satisfying answer, but it’s the accurate one.

What happens if my bag is one pound overweight? On JetBlue, $150. On American, $30 if you’re within 51–53 pounds. On Alaska, Southwest, Delta and United, $100. One pound over the limit is the most expensive pound in aviation.

Fees verified against American’s optional service fee page, Southwest’s travel fees page, plus JetBlue’s, Alaska’s and Frontier’s own baggage pages in October 2026. United’s and Delta’s figures come from their April 2026 announcements as reported by CNBC, ABC News and TODAY. Spirit’s May 2026 shutdown is documented by NPR.

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