United typically allows a carry-on around 56×35×23 cm plus a personal item on most fares above Basic Economy; Basic Economy usually limits you to a personal item only on United metal. Checked bags are paid extras on many US tickets. Small pets may fly in cabin on selected routes — verify July 2026 rules.

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What are United Airlines baggage and ticket policies in 2026?

United is a US Star Alliance major: Basic Economy is tightly unbundled on cabin bags and changes, while Economy and higher restore a standard carry-on. Checked bags are typically paid on domestic tickets unless a MileagePlus or card perk applies. International brands vary — price the all-in total through United hubs.

This page summarises United (UA) carry-on, checked bags, changes, seats and pets for July 2026 planning. Fare rules in the United app beat any blog table.

See airline carry-on sizes 2026, airline baggage fees compared 2026, flight delay compensation rights, and compare UA with Lufthansa on Star Alliance routings via flight deals.

Figures below are illustrative planning bands as of July 2026. Fare families, routes and MileagePlus status rewrite the numbers — confirm on the airline site for your PNR before you pay or pack.

What is the United carry-on size and weight limit?

Most United Economy tickets allow one carry-on commonly described around 22×14×9 inches (about 56×35×23 cm) plus a personal item. Basic Economy on United metal typically allows only a personal item that fits under the seat — a full-size carry-on can trigger gate fees or forced checking. Partner segments may differ.

This Basic Economy personal-item rule is the classic United trap for travellers coming from Delta-metal habits. Read the fare tile twice.

US United flights rarely weigh cabin bags, but Star Alliance long-haul partners might. Pack for the strictest kilogram rule on the journey and keep essentials in the underseat bag.

What is the United carry-on size and weight limit
ItemTypical UA rule (July 2026 planning)Notes
Economy carry-on sizeOften ~56 × 35 × 23 cmIncludes wheels <!-- VERIFY -->
Basic Economy cabin bagUsually personal item only on UA metalMajor gotcha <!-- VERIFY -->
Personal itemUnderseat onlyMust fit
Weight on US UA metalRarely weighedPartner kg caps may apply
Gate checkingSpace-driven on full flightsBoard in your group

How much does United charge for checked bags?

Many United US domestic Economy tickets charge for the first and second checked bags unless a credit card or MileagePlus benefit covers them. Some international Economy brands include bags. Prepaid rates in the United app beat airport prices; overweight fees escalate above 23 kg / 50 lb.

Illustrative US domestic first-bag prepaid bands often sit roughly in the $35–$45 range with second bags higher — planning bands only as of July 2026.

Compare United bag costs with other US majors on airline baggage fees compared 2026.

How much does United charge for checked bags
Bag scenarioTypical planning band (July 2026)When it applies
1st checked bag (US domestic)Often ~$35–$45 prepaidPerk may waive <!-- VERIFY -->
2nd checked bagHigher than firstConfirm live
International inclusionBrand/route dependentRead e-ticket
Overweight / oversizeSignificant surchargesAvoid
Airport deskUsually higherPrepay

What are United change and cancellation fees?

Most United Economy and higher tickets no longer charge change fees on many routes, though fare differences still apply. Basic Economy remains largely non-changeable and non-refundable for convenience. United-led disruptions open rebooking or refund pathways under airline and applicable law.

Watch the 24-hour refund window on qualifying direct bookings. Award tickets use MileagePlus charts, not cash Economy rules.

UK/EU care map: flight delay compensation rights.

What are United change and cancellation fees
Fare postureChange (typical)Cancel for convenience (typical)
Basic EconomyUsually not changeableTypically non-refundable fare <!-- VERIFY -->
Economy+Often $0 change fee + differenceeCredit / refund varies
Refundable / premiumStronger refund pathHigher base
UA disruptionRebook or refundApp + care
24-hour rulePossible free windowChannel matters

How much does United seat selection cost?

Basic Economy seats are assigned by United. Economy may select standard seats free in a window or pay for Economy Plus extra-legroom seats. Exit rows cost more and carry restrictions. MileagePlus elites select earlier and often see Economy Plus perks by tier.

Illustrative Economy Plus prices jump on transcontinental and Hawaii peak dates. Families should not gamble on Basic Economy assignments.

How much does United seat selection cost
Seat typeTypical fee posture (July 2026)Notes
Basic EconomyAuto-assignSplit risk <!-- VERIFY -->
Economy standardOften free in windowConfirm brand
Economy Plus / exitPaidRestrictions
Premium cabinsIncluded choiceCabin rules
MileagePlus elitesEarlier / Plus accessConfirm tier

What is the United pet policy?

United generally allows small dogs and cats in the cabin on selected routes with a pet fee and underseat carrier limits, with caps per flight. Checked pet options are limited compared with older programmes; cargo arrangements handle many larger relocations. Service animals use a separate process.

Reserve in-cabin pets when you book — summer heat embargos are real.

International paperwork is yours. Partner-operated segments may refuse a pet confirmed only on United metal.

What is the United pet policy
Animal typeTypical UA pathwayKey constraint
Small dog/cat in cabinFee + carrier limitsSpace capped <!-- VERIFY -->
Checked petsLimited availabilityConfirm live
CargoApproved pathwaysEmbargos
Service animalsSeparate processForms
ESA labelNot automatic rightsFollow current UA rules

What is the practical bottom line before you buy United?

Never buy United Basic Economy if you need a wheeled carry-on — that personal-item rule is the classic fee trap. Add bag and Economy Plus maths to Economy fares, then compare United with Delta, American and Star Alliance partners on the same dates before you commit.

Screenshot bag and seat lines after purchase — card benefits fail silently on some branded fares.

Disruption steps: United app, care receipts, flight delay compensation rights on qualifying UK/EU flights.

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Frequently asked questions

Does United Basic Economy include a carry-on?
Usually only a personal item on United metal — a full carry-on can cost you at the gate. Confirm the fare tile. <!-- VERIFY -->
How much is United’s first checked bag?
Illustrative US domestic prepaid bands often sit roughly in the $35–$45 range unless waived — verify live.
Can I change a Basic Economy ticket?
Usually not for convenience. Standard Economy changes are often fee-free plus fare difference on many routes.
Is Economy Plus worth it?
For pitch and earlier boarding on long domestic flights, often yes — compare against a standard seat you can actually select.
Can my dog fly in the United cabin?
Small dogs and cats on selected routes with a fee and underseat carrier. Service animals differ.
Do Star Alliance partners follow United bag rules?
Not always. Operating carrier rules can apply — especially on Lufthansa Group metal with cabin weight caps.