Airline baggage fees vary widely by carrier and ticket type

Extra luggage fees depend on which airline you fly, what class of ticket you bought, and whether you're flying domestic or international. There is no single price across the industry. A second checked bag might cost $35 on one airline and $50 on another—or it might be included free if you bought a premium economy ticket. Some carriers charge by the pound or kilogram once you exceed a weight limit; others charge a flat fee per bag.

The best approach is to check your specific airline's baggage policy before you pack. Most airlines publish their fees on their website under "baggage" or "fees," and you can usually find the policy for your exact flight during checkout. Knowing the cost ahead of time lets you decide whether to pay the fee, ship items separately, or pack lighter.

Key Takeaways

  • Most U.S. airlines charge $35 to $50 for a second checked bag on domestic flights, though the exact amount varies by carrier.
  • Your ticket type matters: basic economy fares often charge for a first checked bag, while premium tickets may include two or three bags free.
  • Carry-on bags are usually free, but size limits are strict—oversized carry-ons get checked at the gate and may incur a fee.
  • International flights sometimes have different baggage allowances than domestic ones, so confirm your policy for each leg of your trip.
  • Fees for overweight bags (typically over 50 pounds) can reach $100 or more, so weigh your luggage before arriving at the airport.

Checked bag fees on major U.S. carriers

Most large U.S. airlines—including American, Delta, United, and Southwest—charge for checked bags beyond the first one. The first checked bag is often free if you bought a standard or higher ticket, but basic economy passengers may pay for it. A second checked bag typically costs $35 to $50 on domestic flights.

Southwest is the main exception: all passengers get two free checked bags on every flight, regardless of ticket type. If you fly Southwest regularly and check luggage, this policy alone can save you hundreds of dollars per year. Other carriers like JetBlue and Alaska Airlines have different structures—JetBlue includes one free checked bag on most fares, while Alaska includes two on higher-tier tickets.

Third and fourth checked bags exist but are rare. If you need them, expect to pay $100 or more per bag. Most travelers find it cheaper to ship excess luggage separately or use a luggage delivery service.

Carry-on bags and gate-checked luggage

Carry-on bags are free on all major airlines, but size limits are enforced strictly. The standard limit is 22 by 14 by 9 inches (roughly 56 by 36 by 23 centimeters), though some airlines allow slightly larger bags. If your carry-on is oversized, gate agents will check it at the gate—usually for free if space is available, but some airlines charge $25 to $50 if the flight is full.

Personal items (backpacks, purses, laptop bags) are also free and don't count toward your carry-on limit. However, they must fit under the seat in front of you. If you bring a large roller bag as a personal item, it may be rejected at the gate.

The safest approach is to measure your luggage before you travel. Most airport security checkpoints have a sizing frame you can use for free, and you can also check dimensions at home with a tape measure.

Weight limits and overweight bag fees

Most U.S. airlines set a weight limit of 50 pounds per checked bag. Bags over 50 pounds incur an overweight fee, usually $100 for the first 10 pounds over the limit and another $100 for each additional 10 pounds. Some airlines charge $200 for a single bag that exceeds 70 pounds.

International airlines sometimes use a lower limit—32 or 44 pounds per bag—so check your carrier's policy if you're flying overseas. Weigh your luggage at home on a bathroom scale before you leave for the airport. If you're close to the limit, remove items and pack them in your carry-on or a separate bag.

Sporting equipment, musical instruments, and other special items may have their own weight and size rules. Skis, golf clubs, and surfboards often count as checked bags and incur a fee, though some airlines waive the fee for frequent flyers or elite members.

How ticket type affects baggage allowance

Your fare class determines what bags are included. Basic economy tickets—the cheapest option—often include zero free checked bags and sometimes restrict carry-on size. Standard economy usually includes one free checked bag. Premium economy and business class typically include two or three free checked bags plus higher weight limits.

If you're a frequent flyer with elite status, you may get free checked bags even on basic economy tickets. Airline credit card holders often receive free checked bags as a cardholder benefit, regardless of ticket type. Review your airline's elite benefits and credit card perks before you book—they can offset the cost of a higher fare.

Domestic versus international baggage policies

International flights often have different baggage rules than domestic ones. Some international carriers use a weight-based system (you get a total weight allowance, like 70 pounds, split across all bags) instead of a piece-based system (you get two bags, each up to 50 pounds). Other carriers charge by the kilogram for excess weight.

If you're flying from the U.S. to another country on a foreign airline, check that airline's baggage policy, not the U.S. carrier's policy. The rules can differ significantly. For example, a European airline might include one free checked bag on economy but charge for a second, while a U.S. airline on the same route might charge for both.

When you book a connecting flight with two different airlines, each airline's baggage policy applies to its own flight. If your luggage is checked through to your final destination, the most restrictive policy usually applies, but confirm this with the airline before you travel.

Ways to reduce or avoid baggage fees

The simplest way to avoid fees is to pack light and use only a carry-on bag. If you need to check luggage, buy a ticket that includes checked bags—sometimes a higher fare class or a different airline is cheaper when you factor in baggage fees. For example, a $150 basic economy ticket plus a $50 baggage fee costs more than a $180 standard economy ticket that includes a free checked bag.

Frequent flyer status and airline credit cards are the most reliable ways to get free checked bags. If you fly the same airline regularly, joining its frequent flyer program and earning elite status can save you hundreds of dollars per year in baggage fees alone. Some airline credit cards charge an annual fee of $95 to $450 but include free checked bags, priority boarding, and other perks that offset the cost.

Luggage shipping services like Baggage Forward and Luggageless let you ship your bags to your destination separately, which can be cheaper than paying multiple baggage fees on a long trip. For a week-long vacation, shipping might cost $50 to $100 total, compared to $100 to $200 in airline fees for two checked bags.

Frequently Asked Questions

Do I have to pay for a carry-on bag?

No. Carry-on bags are free on all major airlines. However, the bag must fit within the airline's size limits, usually 22 by 14 by 9 inches. If your carry-on is oversized, it will be checked at the gate, and you may be charged a fee if the flight is full.

What happens if my bag is overweight?

You'll pay an overweight fee at the airport, usually $100 for the first 10 pounds over the 50-pound limit. Weigh your luggage at home before you leave. If it's close to the limit, remove items and pack them in your carry-on or a separate bag.

Can I avoid baggage fees by buying a more expensive ticket?

Sometimes. Premium economy and business class tickets usually include multiple free checked bags, so the higher fare may be worth it if you're checking luggage. Compare the total cost—ticket plus baggage fees—before you book.

Do baggage fees explore to connecting flights?

If you're flying with one airline and your luggage is checked through to your final destination, you pay one baggage fee. If you're connecting on two different airlines, each airline's baggage policy applies to its own flight, and you may pay fees to both carriers.

Is there a way to get free checked bags?

Yes. Frequent flyer elite status, airline credit card membership, and higher ticket classes all include free checked bags. Southwest includes two free checked bags for all passengers on all fares. Some airlines also waive baggage fees for military personnel and people with disabilities.