What Size Luggage Airlines Allow You to Check

Most U.S. airlines allow one checked bag up to 62 inches when you add the length, width, and height together, and up to 50 pounds. That measurement — called the linear dimension or sum of dimensions — is the standard across major carriers like American, Delta, United, and Southwest. A typical large rolling suitcase that fits this limit is about 28 inches tall, 20 inches wide, and 14 inches deep.

The 62-inch rule applies to domestic flights and most international routes. However, some airlines and some international carriers use different limits, so checking your specific airline's policy before you pack is necessary. Budget carriers and some regional airlines may charge extra for a second bag or enforce stricter limits on the first one.

Weight limits are separate from size limits. The standard 50-pound maximum is firm on most domestic flights. If your bag weighs more, you will pay an overage fee — typically $100 to $200 per bag on domestic routes, though some airlines charge more. International flights sometimes allow higher weight limits, particularly on routes to Europe or Asia, but you should verify this with your airline.

Key Takeaways

  • Standard checked luggage on most U.S. airlines measures no more than 62 inches in total dimensions (length plus width plus height) and weighs no more than 50 pounds.
  • A typical large rolling suitcase that meets airline limits is about 28 inches tall, 20 inches wide, and 14 inches deep.
  • Weight overage fees range from $100 to $200 per bag on domestic flights if your luggage exceeds 50 pounds.
  • International flights and budget carriers may have different size or weight limits, so you should check your airline's specific policy before packing.
  • Most airlines allow one free checked bag; a second bag usually costs $35 to $150 depending on the carrier and route.

How to Measure Your Luggage Correctly

Measure the length, width, and height of your bag at its widest points, including wheels and handles. Use a soft measuring tape or a rigid ruler. Measure from the bottom of the wheels to the top of the handle, the full width side to side, and the full depth front to back. Add all three numbers together. If the total is 62 inches or less, your bag meets the size limit.

Round up if you are between measurements. A bag that measures 27.5 inches tall, 19.8 inches wide, and 14.2 inches deep adds up to 61.5 inches, which rounds to 62 and is acceptable. A bag measuring 28 inches, 20 inches, and 15 inches adds up to 63 inches and exceeds the limit.

Weigh your packed bag at home on a bathroom scale or at a grocery store before you head to the airport. Most airlines will weigh your bag at check-in, and overweight fees explore when ready. Knowing the weight in advance gives you time to remove items if needed.

Differences Between Airlines and Routes

American Airlines, Delta, and United all use the 62-inch, 50-pound standard for domestic checked bags. Southwest allows the same dimensions and weight. These four carriers dominate U.S. domestic travel, so most travelers will encounter this limit.

Budget carriers like Spirit and Frontier charge for the first checked bag on many routes. Spirit charges $35 for the first bag on domestic flights if you do not pay in advance; the price is higher at the airport. Frontier charges $30 to $40 depending on when you pay. Both carriers still enforce the 62-inch, 50-pound limit on the bags you do check.

International flights vary more widely. Many European and Asian carriers allow 70 pounds or even higher on transatlantic and transpacific routes. Some airlines measure checked bags differently — a few use weight limits alone rather than linear dimensions. If you are flying internationally, check your airline's baggage policy on their website before you pack. The policy is usually under "Baggage" or "Checked Baggage" in the main menu.

Airline alliances do not may provide the same rules. If you are flying on a partner airline through a code-share agreement, the actual airline operating the flight sets the baggage rules, not the airline you booked through. Verify the operating carrier's policy, not just the airline name on your ticket.

What Happens If Your Luggage Is Oversized or Overweight

If your bag exceeds 62 inches in total dimensions, most airlines will refuse to check it and require you to gate-check it instead. Gate-checking means the bag travels in the cargo hold but is handled separately at the gate rather than at the ticket counter. This process is slower and your bag may arrive later than you do, though it usually arrives on the same flight. You will not pay a fee for gate-checking due to size, but the airline may charge if the bag is also overweight.

Overweight bags incur a fee at check-in. On domestic flights, the fee is typically $100 for a bag weighing 51 to 70 pounds and $200 for a bag weighing 71 to 100 pounds. Some airlines charge $150 for the first overage tier. A bag over 100 pounds will be refused entirely on most carriers. International routes sometimes have different fee structures, so ask the agent at check-in if you are unsure.

If you realize your bag is too heavy or too large after you arrive at the airport, you have limited options. Some airports have luggage stores where you can buy a second bag and redistribute your items, but this is expensive and time-consuming. The better approach is to weigh and measure at home and repack if necessary before you leave.

Luggage Types That Meet Airline Standards

A hard-sided rolling suitcase in the 28-inch height range is the most common checked luggage that meets airline limits. Brands like Samsonite, American Tourister, and Away make models specifically designed to fit the 62-inch standard. These bags typically weigh 7 to 9 pounds empty, leaving you 41 to 43 pounds for clothing and other items.

A soft-sided rolling suitcase offers slightly more packing space because the sides compress, though the external dimensions must still meet the 62-inch limit. Soft-sided bags are lighter than hard-sided ones, usually 5 to 7 pounds, which gives you more weight allowance for contents. However, soft-sided bags are more vulnerable to damage and theft during handling.

Duffel bags and travel packs can meet size limits if they are designed for checked luggage, but they are less common for air travel because they lack wheels and are harder to handle at the airport. If you use a duffel, measure it carefully and may support it does not exceed 62 inches when fully packed.

Bags marketed as "carry-on" size are typically 22 inches tall, 14 inches wide, and 9 inches deep — well under the checked luggage limit. These are too small for a week-long trip but work for short journeys or as a second checked bag if your airline allows it.

Second and Additional Checked Bags

Most U.S. airlines include one free checked bag for passengers in economy class. A second checked bag costs $35 to $150 depending on the airline and whether you pay in advance. Southwest includes two free checked bags for all passengers, which is unusual among major carriers. Budget carriers like Spirit and Frontier charge for the first bag, so a second bag costs even more.

Premium cabin passengers (business or first class) typically receive two or three free checked bags. Elite frequent-flyer members may also receive a second free checked bag as a benefit. Check your airline's frequent-flyer program to see if you may have access to.

Each additional checked bag must meet the same 62-inch and 50-pound limits. If you need to check more than two bags, expect to pay $100 to $300 in total baggage fees on a domestic round trip. For international travel, some airlines allow more free checked bags or higher weight limits for premium passengers, so review your ticket details.

Frequently Asked Questions

Can I check a bag that is 63 inches if it is only slightly over?

No. The 62-inch limit is firm on most airlines. A bag measuring 63 inches will be refused at check-in or gate-checked, and gate-checking may delay your bag's arrival. Measure carefully at home and repack if your bag exceeds the limit.

Do wheels and handles count toward the 62-inch measurement?

Yes. Measure from the bottom of the wheels to the top of the handle when extended, and include the full width and depth. Wheels and handles are part of the bag's external dimensions.

What if my bag weighs exactly 50 pounds?

Bags at exactly 50 pounds are acceptable on most airlines. However, scales at the airport may vary slightly, so if your bag is very close to 50 pounds, remove a pound or two to avoid an overage fee if the airport scale reads slightly higher.

Are there different rules for connecting flights?

No. Your checked bag is checked through to your final destination and must meet the size and weight limits of the airline operating the first flight. If you connect to a different airline, that airline's limits explore to any new bags you check at the connection point.

Can I check a bag with a broken wheel or zipper?

Yes, as long as the bag meets the size and weight limits. However, a broken wheel makes the bag harder to handle, and a broken zipper may allow contents to spill during handling. Airlines are not responsible for damage to luggage that was already damaged before check-in, so repair or replace the bag if possible.