Most airlines charge extra when a checked bag exceeds 62 inches or weighs more than 50 pounds
Oversized luggage is defined differently by each airline, but the most common threshold is 62 inches when you add the length, width, and height of the bag together. A standard large suitcase—28 inches tall, 20 inches wide, and 12 inches deep—totals 60 inches and stays within limits. Once you go beyond 62 inches in total dimension, or if your bag weighs more than 50 pounds, most carriers will charge an oversized bag fee on top of your checked baggage fee.
The fee itself varies widely. Some airlines charge $75 to $100 for the first oversized bag, while others charge $150 or more. A few carriers, like Southwest, do not charge for oversized bags at all—they only charge if you exceed two checked bags total. The best approach is to check your specific airline's baggage policy before packing, because the rules change between carriers and sometimes between fare types on the same airline.
Key Takeaways
- The 62-inch rule (length plus width plus height) applies to most major U.S. airlines, though some use different thresholds or measure differently.
- Weight limits are usually 50 pounds for standard checked bags, and oversized fees kick in when you exceed either the size or weight limit.
- Budget airlines and international carriers often have stricter limits—some set the threshold at 55 inches or lower.
- Oversized fees typically range from $75 to $150 per bag, but you should verify your airline's exact policy before you pack.
- Soft-sided bags can compress slightly, which may help you stay under the limit, but hard-sided suitcases cannot shrink.
How airlines measure your bag
Airlines measure checked luggage by adding the three dimensions together: length plus width plus height. If your suitcase is 28 inches tall, 20 inches wide, and 12 inches deep, that is 60 inches total. The measurement includes any handles or wheels that stick out from the bag itself. Some airlines use a measuring frame at check-in to verify the size, while others estimate by eye—but you should assume they will measure if your bag looks close to the limit.
Weight is measured on a scale at the check-in counter. The scale includes the bag and everything inside it. If you are near the 50-pound limit, pack heavier items in your carry-on to lighten your checked bag, or split items between two bags if you are allowed to check two. Keep in mind that some airlines charge for a second checked bag, so the math might favor paying an oversized fee instead of paying for two bags.
Size limits vary by airline and ticket type
Most major U.S. carriers—American, Delta, United, and JetBlue—use the 62-inch standard. However, some airlines set the limit lower. Spirit and Frontier, which are budget carriers, cap checked bags at 55 inches and 40 pounds, so you will hit their oversized threshold much faster. International airlines often have stricter rules as well; many European and Asian carriers use 55 inches or even 50 inches as the maximum.
Your ticket type also matters. Basic economy fares sometimes include only one checked bag, or charge for the first one. Premium economy or business class tickets often include two checked bags at no extra charge, and those bags may have higher size allowances. Before you book, look at what your specific fare class includes. The airline's website usually has a baggage chart that breaks down limits by ticket type.
What happens if your bag is oversized at check-in
If your bag exceeds the size or weight limit, the agent at check-in will tell you before your bag goes on the conveyor. At that point, you have a few options: pay the oversized fee, repack into a smaller bag if you have one, or remove items and put them in your carry-on. Some travelers keep a small duffel bag in their suitcase for this reason—if they are over the limit, they can move items into the duffel and carry it on instead.
If you refuse to pay and cannot repack, the airline will not let your bag on the plane. This is rare, but it happens. The best way to avoid this situation is to weigh your bag at home before you leave for the airport. Most grocery stores, shipping centers, and gyms have scales you can use for free or a small fee. Measure your bag's dimensions with a tape measure as well. If you are within a few inches or pounds of the limit, plan to travel lighter or pay the fee upfront.
Soft-sided versus hard-sided luggage
Soft-sided bags (made of fabric or flexible material) can compress slightly when packed, which may help you squeeze under the size limit. Hard-sided suitcases (made of plastic or polycarbonate) cannot compress, so what you measure at home is what the airline will measure at check-in. If you are close to the 62-inch threshold, a soft-sided bag gives you a small advantage—maybe an inch or two of wiggle room if you pack carefully and the bag is not overstuffed.
However, do not rely on compression to save you. Airlines measure the bag as presented at check-in, and if it looks oversized, they will measure it. A bulging soft-sided bag might compress to 61 inches when you pack it, but if it expands to 63 inches by the time you reach the airport, you will be charged. Hard-sided bags are more predictable because they hold their shape, so if you measure 60 inches at home, you will be 60 inches at the airport.
Comparing checked bag fees across airlines
| Airline | Standard Size Limit | Weight Limit | Oversized Fee |
|---|---|---|---|
| American, Delta, United, JetBlue | 62 inches | 50 pounds | $75–$100 |
| Southwest | 62 inches | 50 pounds | No oversized fee; charges for 3rd+ bag |
| Spirit, Frontier | 55 inches | 40 pounds | $75–$100 |
| Alaska Airlines | 62 inches | 50 pounds | $100 |
Fees and limits change, so check your airline's website before you pack. Some airlines offer discounts if you pay the oversized fee online before you arrive at the airport, rather than at check-in. Others charge more at the gate than they do in advance. If you know your bag will be oversized, paying online ahead of time often saves money.
Tips to stay under the size limit
The easiest way to avoid oversized fees is to choose a suitcase that is already under 62 inches. Most standard carry-on bags are around 22 inches tall, 14 inches wide, and 9 inches deep (45 inches total), and most standard checked bags are 28 inches tall, 20 inches wide, and 12 inches deep (60 inches total). If you buy luggage, look for bags labeled as "within airline limits" or check the dimensions on the product page before you purchase.
When packing, use packing cubes or compression bags to organize items and reduce wasted space. Roll clothes instead of folding them to save room. Put heavier items at the bottom and lighter items on top. If you are traveling with multiple people, split items across two bags rather than overstuffing one. And always weigh your bag at home—do not guess. A scale costs less than an oversized fee, and it takes two minutes.
Frequently Asked Questions
Do carry-on bags have oversized fees?
No. Carry-on bags are subject to size limits (usually 22 x 14 x 9 inches), but if your bag fits in the overhead bin or under the seat, you board with it. There is no oversized fee for carry-on luggage. If your carry-on is too large to fit, the gate agent will ask you to check it, and you may be charged a checked bag fee if you have already checked your limit.
What if my bag is 63 inches—just one inch over?
You will likely be charged the oversized fee. Airlines do not round down. However, some agents use judgment if a bag is barely over and not obviously oversized. The safest approach is to stay clearly under the limit. If you are at 62 inches or 63 inches, you are in the danger zone.
Can I pack a second bag to avoid the oversized fee?
Yes, if your airline allows two checked bags. Splitting items between two bags that are each under 62 inches is often cheaper than paying an oversized fee for one large bag. However, if your airline charges for a second checked bag, do the math first—sometimes the oversized fee is cheaper than paying for two bags.
Do international flights have different oversized rules?
Yes. Many international airlines use 55 inches or 50 inches as the maximum, and some have lower weight limits (35 pounds instead of 50). Check your specific airline's international baggage policy, because the rules may differ from their domestic flights.
Will my bag get damaged if it is oversized?
Oversized bags are handled the same way as standard bags once they are checked. The oversized fee is just a charge for exceeding the size limit—it does not affect how your bag is treated. However, very large or heavy bags are more likely to be damaged during handling straightforward because they are harder to move and stack.