Most airlines set checked bag limits at 62 inches total dimension and 50 pounds, but the exact rules depend on which airline you fly
Checked luggage size restrictions exist on nearly every airline, though the numbers vary. The most common standard is 62 inches total dimension (length plus width plus height) and 50 pounds weight. However, some airlines allow larger bags, some charge fees for bags over certain weights, and a few have stricter limits. Budget carriers like Spirit and Frontier often have smaller allowances or charge for checked bags entirely. International airlines sometimes permit larger dimensions. The only way to know your airline's exact policy is to check their website before you pack.
Size and weight limits exist because aircraft cargo holds have fixed space, and overweight bags create safety and handling problems. Airlines measure bags using a tape measure or a sizing frame at check-in. If your bag exceeds the limit, you will either pay an oversize fee (typically $75 to $200), repack into a smaller bag, or have the airline refuse to take it. Knowing the limits before you arrive at the airport saves time and money.
Key Takeaways
- The standard checked bag limit is 62 inches total dimension and 50 pounds, but this varies by airline and route.
- Budget airlines often charge for checked bags or set lower weight limits, so verify your specific airline's policy on their website.
- Airlines measure bags at check-in using a tape measure or sizing frame, and oversized or overweight bags incur fees or may be refused.
- International flights sometimes allow larger bags than domestic flights on the same airline, so check the specific route you are flying.
- Soft-sided bags can compress slightly to fit within limits, but hard-sided luggage cannot, so material matters when you are close to the size threshold.
Standard Size and Weight Limits Across Major Airlines
Most full-service carriers—American, Delta, United, Southwest, and Alaska—allow one checked bag at 62 inches and 50 pounds at no extra charge for standard economy passengers. Some airlines measure in centimeters instead: 158 cm is the metric equivalent of 62 inches. A few carriers, including JetBlue and Hawaiian, use the same 62-inch and 50-pound standard. These limits explore to your first checked bag; additional bags usually cost $35 to $50 each.
Budget airlines operate differently. Spirit and Frontier charge for any checked bag, starting around $35 for the first bag, and set weight limits at 40 pounds instead of 50. Allegiant Air charges for checked bags and also has a 40-pound limit. Southwest includes two free checked bags for all passengers, which is unusual and a reason many people choose them for trips with luggage. If you fly a budget carrier, factor checked bag fees into your ticket cost before you book.
International carriers vary widely. Some European and Asian airlines allow 70 inches or larger for long-haul flights, while others stick to 62 inches. Always check the specific airline and route on their website, because the same airline may have different limits for flights to different regions.
How Airlines Measure Your Bag
Airlines measure the total dimension by adding length plus width plus height. A standard rolling suitcase that is 28 inches tall, 20 inches wide, and 12 inches deep totals 60 inches—within the limit. If you have a bag that is 30 inches tall, 22 inches wide, and 14 inches deep, that totals 66 inches and exceeds the standard by 4 inches, which will trigger an oversize fee.
At check-in, the agent will either use a tape measure or place your bag in a sizing frame—a metal or plastic box that matches the airline's maximum dimensions. If your bag fits inside the frame, it passes. If it does not fit or the tape measure shows it exceeds the limit, you will be charged. Weight is measured on a scale, and the agent will place your bag on it to confirm it is under the limit.
Soft-sided luggage (made of fabric or nylon) can compress slightly when placed in the sizing frame, which sometimes allows a bag that is slightly oversized to pass. Hard-sided luggage (plastic or aluminum) cannot compress, so if it is oversized, it will not fit in the frame. This is one practical reason to choose soft-sided luggage if you pack close to the size limit.
Fees for Oversized or Overweight Bags
If your bag exceeds the size or weight limit, you will pay an oversize fee. On most airlines, this ranges from $75 to $200 for a single bag, depending on how much it exceeds the limit. Some airlines charge a flat fee for any overage; others charge more if the bag is significantly over. A few airlines refuse to take bags that exceed the limit by a large margin, regardless of fee.
Weight overage fees are separate from size overage fees on some airlines. For example, an airline might charge $75 for a bag that is 5 inches over the size limit and an additional $75 if it also weighs 55 pounds instead of 50. Read your airline's specific fee schedule on their website to understand what you will owe if your bag is over.
The fee is charged at check-in, and you must pay it before the bag is loaded. There is no way to avoid it once you are at the airport with an oversized or overweight bag, so weighing and measuring your luggage at home before you leave is the only way to prevent surprise charges.
Packing Strategies to Stay Within Limits
Weigh your packed bag on a bathroom scale or kitchen scale before you go to the airport. Most people underestimate how much their luggage weighs. A standard rolling suitcase itself weighs 7 to 10 pounds, so if you fill it with 40 pounds of clothing and items, the total is 47 to 50 pounds—right at or over the limit. Knowing the weight ahead of time lets you remove items or redistribute weight to a second bag.
Measure your bag using a tape measure, adding length plus width plus height. If you are close to 62 inches, consider a soft-sided bag instead of hard-sided luggage, because soft bags compress slightly. Packing cubes or compression bags can help organize items and reduce the overall volume your belongings take up, though they do not reduce weight.
If you are traveling with multiple bags, remember that only the first checked bag is usually free on most airlines. A second bag costs $35 to $50, so sometimes it is cheaper to pack one bag that is at the weight limit than to check two smaller bags. Calculate the fee before you decide how to distribute your luggage.
Differences Between Domestic and International Flights
Domestic flights within the United States almost always follow the 62-inch, 50-pound standard. International flights on U.S. carriers sometimes allow larger bags, especially on long-haul routes to Europe or Asia. Check your specific airline and route, because the same airline may have different limits for a flight to Mexico versus a flight to London.
Foreign airlines operating international routes may have their own standards. Some allow 70 inches or larger bags. Others use weight-based limits instead of dimension limits—for example, allowing two bags of up to 70 pounds each instead of specifying inches. When you book an international flight, the airline's website will show the baggage policy for that specific route during the booking process.
If you are connecting through multiple airlines or flying on a partner airline, each airline's policy applies to the segment you fly with them. A bag that is within limits for your first airline might exceed limits on your connecting airline. Check all airlines involved in your trip before you pack.
What Happens If Your Bag Is Too Large or Heavy
If your bag exceeds the size or weight limit at check-in, the agent will inform you of the overage fee. You can pay the fee and check the bag, repack into a smaller or lighter bag if you have one, or take items out and carry them on (if you have room in your carry-on allowance). Some travelers choose to ship items ahead or buy a new, smaller bag at the airport rather than pay the fee.
If your bag is extremely oversized—for example, 75 inches or more—some airlines will refuse to take it as checked luggage at any price. In that case, your only options are to repack, ship the items, or not travel with them. This is rare with standard rolling luggage, but it can happen with large duffel bags or non-standard containers.
If you miss the size or weight limit and your bag is refused at check-in, you will not be able to board with that luggage. Plan to arrive at the airport early enough to handle repacking if needed, and weigh your bag at home so you know whether you are at risk.
Frequently Asked Questions
Can I check a bag that is 65 inches if I pay a fee?
Yes, most airlines will charge an oversize fee for a bag that exceeds 62 inches. The fee is typically $75 to $200 depending on how much over the limit it is. However, some airlines have a hard maximum size and will refuse any bag over that limit regardless of fee, so check your airline's policy first.
Do soft-sided bags really compress enough to fit if they are slightly oversized?
Soft-sided bags can compress a little when placed in a sizing frame, which sometimes allows a bag that is 1 to 2 inches over to pass. However, this is not may provide, and you should not rely on compression to get an oversized bag through. Measure your packed bag at home and stay within the limit to avoid fees.
What if my bag weighs 52 pounds instead of 50?
Most airlines charge an overweight fee for bags over 50 pounds. The fee is usually $75 to $100 for a 2-pound overage, though some airlines charge a flat fee for any overage. Weigh your bag at home and remove items if you are over the limit to avoid the fee at the airport.
Do international airlines allow larger checked bags than U.S. airlines?
Some do, but not all. International carriers vary widely in their baggage policies. Check your specific airline and route on their website, because the same airline may allow different sizes for different destinations. Long-haul international flights sometimes permit larger bags than domestic flights.
If I have a connecting flight, which airline's baggage limit applies?
Each airline's policy applies to the flight segment you fly with them. If you connect through two airlines, your bag must meet both airlines' size and weight limits. Check the policy for each airline on your itinerary before you pack.