You're at the airport check-in counter. The agent puts your bag on the scale. 53 pounds. The standard limit is 50. The fee surprise: anywhere from $0 to $200 depending on the airline. Here's exactly what each major U.S. airline charges, and how to avoid the fees entirely.
The standard 50-pound limit
Most major U.S. airlines limit checked bags to 50 lbs (22.7 kg) in main cabin / economy class. Premium classes (business, first) get 70 lbs.
Frontier and Spirit have lower limits — 40 lbs main cabin — and tighter fee structures.
Major airline overweight fees
Delta:
- 51–70 lbs: $100
- 71–100 lbs: $200
- Over 100 lbs: not accepted as standard baggage
United:
- 51–70 lbs: $100 (some routes $150)
- 71–100 lbs: $200
- Over 100 lbs: not accepted
American:
- 51–70 lbs: $100
- 71–100 lbs: $200
- Over 100 lbs: not accepted
Southwest (different policy):
- 51–100 lbs: $125 flat fee
- Over 100 lbs: $200
- Two free checked bags up to 50 lbs each (still industry's most generous)
JetBlue:
- 51–70 lbs: $150
- 71–99 lbs: $200
- Over 99 lbs: not accepted
Alaska:
- 51–100 lbs: $100 (oversize/overweight combined)
- Over 100 lbs: not accepted
Spirit:
- 41–50 lbs (over their 40 lb limit): $50
- 51–70 lbs: $100
- 71–99 lbs: $150
Frontier:
- 41–50 lbs: $50
- 51–70 lbs: $100
- 71–99 lbs: $150
Combined size + weight oversize fees
If your bag is also oversized (combined L+W+H > 62 in for most airlines), additional fees apply on top:
- 62–80 in oversize: $200 (most airlines)
- Over 80 in: $200 + special handling
Note: oversize and overweight fees on the same bag may be combined to a single fee at some airlines, separately at others. American often charges them together.
International fees
International routes often have different limits and fees. Check the specific route and airline before booking.
Common international setup:
- Economy: 50 lbs limit, $100 overweight
- Business: 70 lbs limit, $100 over
- First: 70 lbs limit, $100 over
Some intercontinental flights to Africa or South America have stricter limits — verify before flying.
How airlines weigh bags
The check-in counter scale is the official weight. Some agents will round down (51 lbs becomes 50). Most enforce strictly. Don't argue — pay the fee or unpack.
Curbside check-in scales are the same scale that gets used at check-in counter, so the weight you see is final.
How to avoid overweight fees
- Weigh at home. A digital luggage scale ($15–25) plus repackaging saves the surprise. Weigh, redistribute if heavy, weigh again.
- Wear heavy items. Boots and jacket on the plane = 5–8 lbs out of the bag.
- Redistribute between bags. If you have multiple bags, even out the weight. A 53-lb bag + 40-lb bag becomes 50-lb + 43-lb after rearranging.
- Move heavy items to carry-on. The carry-on is rarely weighed. Books, electronics, shoes can shift to carry-on.
- Pay for upgraded baggage allowance. Premium cabin or elite status often increases the limit to 70 lbs without fee.
- Use a service to ship boxes ahead. For very heavy items (sports gear, multiple suitcases), Luggage Forward or FedEx might be cheaper than fees + base bag charge.
The status discount
Frequent flyer status often increases your free baggage allowance:
- Delta Diamond/Platinum: 70 lbs limit (up from 50).
- United 1K/Platinum: 70 lbs.
- American Concierge Key/Executive Platinum: 70 lbs.
If you're approaching status, sometimes the year-end push isn't worth it — but for frequent travelers, the bag-fee savings alone over a year often justify the effort.
Credit card waivers
Some airline credit cards waive checked bag fees:
- Delta SkyMiles cards (Gold and above): first checked bag free.
- United cards: first checked bag free.
- American Aviator cards: first checked bag free.
These don't waive overweight fees — only the standard checked bag fee. But for a typical trip, that saves $30–50 each direction.
Fee creep over the years
Bag fees have gone up steadily. In 2008, most airlines didn't charge for the first checked bag. By 2010, $25 was standard. By 2026, $35–45 is typical. Overweight fees have crept up similarly — what was $50 in 2010 is $100 today.
Expect continued increases. Frequent flyers should consider an airline credit card to avoid them.
Estimate before you travel
Our luggage weight estimator takes your bag weight, picks the airline, and tells you whether you're over the limit and the estimated fee. Use it before leaving home — much cheaper than the surprise at the counter.