BargainAirTicket is an independent travel agency, we are not United Airlines and are not affiliated with, endorsed by, or operated by United Airlines. You can add or prepay bags yourself at united.com at no cost beyond the bag fee itself, usually cheaper than the airport. If you'd rather we confirm your fare's real baggage allowance and add bags for you, our agents help for a service fee, quoted before you're charged.

United baggage, the Basic Economy carry-on trap

United's baggage rules hinge on one word: fare. Every fare above Basic Economy includes a free carry-on plus a personal item, but Basic Economy, the fare most price-shoppers land on, drops you to a personal item only, with no carry-on bag at all, on most routes. The exception: flights to and from South America, and transatlantic or transpacific routes, do allow a carry-on even on Basic Economy. It's the opposite of airlines that protect the carry-on on every fare, and it's the single biggest gate surprise on United. Checked bags carry their own separate, moving cost on top of that. Here's exactly how it works, and how we confirm your real allowance before you're standing at the gate.

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    First question: are you flying Basic Economy, or a standard (non-Basic) fare?

    Basic Economy, check your route first

    On most routes you get a personal item only, no carry-on bag. The exception: flights to/from South America, and transatlantic or transpacific routes, do allow a carry-on on Basic Economy. Everywhere else, a roller bag at the gate without status or an eligible card usually means a gate-check fee.

    Non-Basic fares, carry-on included

    Standard Economy, Economy Plus, First, Business and Polaris all include 1 carry-on (up to 22 x 14 x 9 in) plus 1 personal item, free, no exceptions by route. Checking a bag is still a separate cost either way.

    Basic Economy = PERSONAL ITEM ONLY, no carry-on bag, except flights to/from South America, transatlantic and transpacific routes Without status or an eligible United card, a Basic Economy carry-on on a domestic flight gets gate-checked for a fee Non-Basic fares: 1 carry-on + 1 personal item free, no exceptions by route Prepaying a checked bag online is cheaper than paying at the airport counter Checked bags cost extra, the fee varies and isn't a flat number; confirm the current amount at united.com Standard checked bag limit: 50 pounds and 62 linear inches, heavier or larger costs more

    United Basic Economy gives you a personal item only, no carry-on bag, on most routes.

    That's the reverse of airlines that keep a free carry-on on every fare, Basic Economy included. United carves out one exception, flights to and from South America, and transatlantic or transpacific routes, where a carry-on is allowed even on Basic Economy. But on a domestic hop or a shorter international route, boarding with a roller bag on Basic Economy and no status or eligible card usually means it gets gate-checked for a fee you didn't plan for. Non-Basic fares avoid the issue entirely: carry-on and personal item are included, full stop.
    Where bag costs escalate
    Before you book

    Check whether your fare is Basic Economy and whether your route falls under the South America / transatlantic / transpacific exception, that single detail decides whether your carry-on is free or gets gate-checked.

    Add bags online, in advance

    Whether at booking or later through Manage Reservations, prepaying a checked bag online is generally cheaper than paying at the airport. We can do this for you over the phone as well.

    During online check-in

    Still typically cheaper than the airport, but the online window closes, don't wait until you're walking into the terminal to sort your bags.

    At the airport counter

    The most expensive place to add or gate-check a bag, and where overweight (over 50 pounds) or oversize (over 62 linear inches) surcharges also apply. Plan ahead if you can.

    How United baggage works

    The essentials in plain language. Your exact allowance depends on fare and route.

    Non-Basic fares include a free carry-on and personal item:

    Standard Economy, Economy Plus, First, Business and Polaris all include one carry-on bag (up to 22 x 14 x 9 in, including handles and wheels) plus one personal item that fits under the seat in front of you, no exceptions by route.

    Basic Economy drops the carry-on on most routes:

    United Basic Economy includes a personal item only, no full-size carry-on, on the majority of routes. The exception is flights to and from South America, and transatlantic or transpacific routes, where a carry-on is allowed even on Basic Economy. This is the reverse of airlines whose Basic fare still protects a free carry-on everywhere; on United, the fare class and the route together decide it.

    Checked bags are usually paid, and the amount moves:

    Domestic economy checked bags are not free. As a representative figure, a first checked bag runs around $50 on many domestic routes, cheaper prepaid online than paid at the airport, and the second bag costs more than the first. Always confirm the current amount at united.com, since fees change.

    Weight and size limit:

    United's standard checked-bag limit is 50 pounds and 62 linear inches (length + width + height combined). Go over either number and expect an added overweight or oversize charge on top of the standard bag fee.

    We never publish a flat checked-bag fee because yours depends on route, timing and how you pay, an agent confirms the current amount and can add your bags for you, usually cheaper than the airport.

    The Basic Economy carry-on trap

    This is the #1 gate surprise on United, and it works the opposite way from some other airlines.

    No carry-on on most Basic Economy routes:

    Unlike some competitors that keep a free carry-on on their cheapest fare, United's Basic Economy strips it down to a personal item only on the majority of routes. If you pack a roller bag expecting to carry it on, that assumption is what gets you caught out.

    The route exception that flips the rule:

    Flights to and from South America, and transatlantic or transpacific routes, are exempt, a carry-on is allowed on Basic Economy for those itineraries. So the same fare name behaves differently depending purely on where you're flying.

    What happens if you bring one anyway:

    Without MileagePlus Premier status or an eligible United card, a Basic Economy carry-on on a route that doesn't qualify for the exception typically gets gate-checked for a fee at the gate, not the cheapest way to check a bag, and not a great surprise right before boarding.

    Tell us your route and fare before you book or pack, and we'll confirm whether your carry-on is actually included, it can change which fare is really the better deal.

    Carry-on vs. checked, what to know

    Pick the right approach before you get to the airport.

    Carry-on + personal item

    Fastest, no bag drop

    • Free on non-Basic fares, no exceptions
    • Basic Economy = personal item only, except S. America/transatlantic/transpacific
    • Skip the check-in bag queue entirely
    • Liquids still follow the 3-1-1 cabin rule

    Checked baggage

    For bigger trips

    • Usually paid, fee varies, cheaper prepaid online than at the counter
    • Standard limit: 50 pounds and 62 linear inches
    • Overweight or oversize bags cost more
    • Second bag costs more than the first

    Get your exact allowance

    United's checked-bag fees change and depend on route, fare and how you pay, so any printed figure goes stale fast. Use a source that's always current:

    United's own carry-on & checked bag page:

    See current allowances and fees: united.com carry-on & checked bags.

    Or tell us your route and fare, we'll confirm exactly what your ticket includes, whether the South America/transatlantic/transpacific carry-on exception applies to you, and add your bags for you for a service fee, quoted before you're charged.

    Special & oversized items

    These usually need advance arrangement, call before you fly rather than finding out at the counter.

    • Sports gear (skis, golf, bikes), size and weight rules apply, and advance notice helps avoid surprises
    • Musical instruments, cabin (with an extra seat) or checked, depending on size
    • Strollers & car seats, often checked at the gate on many routes; ask us to confirm for yours
    • Mobility devices, carried at no charge; arrange ahead so it's ready at the gate

    Lost or delayed bag? Report it at United's baggage service office before you leave the airport and keep the file reference number. Then call us and we'll help you understand your rights and the next steps.

    Frequently asked

    Does United Basic Economy include a carry-on bag?+
    No, not on most routes. United Basic Economy includes a personal item only, no full-size carry-on, with one notable exception: flights to and from South America, and transatlantic or transpacific routes, do allow a carry-on even on Basic Economy. Everywhere else, if you show up with a roller bag on a domestic Basic Economy fare and you don't have status or an eligible United card, expect it gate-checked for a fee. This is the opposite of some airlines that protect the carry-on on every fare, and it's the single biggest gate surprise on United.
    What baggage do I get on a non-Basic United fare?+
    Every fare above Basic Economy, standard Economy, Economy Plus, First, Business and Polaris, includes one free carry-on bag (up to 22 x 14 x 9 in) plus one personal item that fits under the seat in front of you. No exceptions by route on these fares.
    How much does a first checked bag cost on United?+
    There's no single fixed price. As a representative figure, a first checked bag runs around $50 on many domestic routes, cheaper when you prepay online than when you pay at the airport counter, and the second bag costs more than the first. Always confirm the current amount at united.com, since United's bag fees change.
    What's the weight and size limit for a checked bag on United?+
    The standard checked-bag limit on United is 50 pounds and 62 linear inches (length + width + height combined). Go over either number and expect an overweight or oversize charge on top of the standard bag fee, confirm the current charge at united.com before you pack.
    Is it cheaper to add a checked bag online or pay at the airport?+
    Yes, prepaying a checked bag on united.com or in the United app is cheaper than adding it at the airport counter in almost every case. Sort your bags before you leave for the airport rather than at check-in.
    My United bag is lost or delayed, what do I do?+
    Report it at United's baggage service office before you leave the airport and keep the file reference number. Then call us and we'll help you understand your rights and the next steps to get it back.

    Contact options

    Reach United directly, or let us confirm and add your bags.

    Contact United Airlines directly

    The airline's own official channels, free.

    Websiteunited.com
    Reservations1-800-864-8331
    Spanish1-800-426-5561
    AppUnited app (iOS / Android)

    Or let a BargainAirTicket agent do it

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    BargainAirTicket is an independent travel marketplace operated by Bookmecheapest LLC, not an airline and not a representative of United Airlines or any airline. "United Airlines" and related marks are trademarks of their respective owners, used here only to describe the ticketing support we offer. Baggage allowances, fees and limits are set by the airline, vary by fare and route, and change frequently, always confirm current details at united.com. We assist with bookings on any airline for a service fee, quoted before you're charged.

    Policies last verified July 13, 2026 against United Airlines' own website. Airlines change these rules often, and we confirm current terms on every call.

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