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United Baggage Calculator

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Instant, accurate United Airlines baggage policy — for every cabin class, every route, every year.

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Everything You Need to Know About
United Airlines Baggage

A comprehensive, reader-friendly guide to United Airlines' baggage policies — before you book, before you pack.

United Airlines
One of the world's largest airlines and a founding member of Star Alliance, flying to over 340 destinations across 50+ countries from its hubs in Chicago, Houston, Newark, Denver, San Francisco and Los Angeles.
✈️
Fleet Size
700+ Aircraft
🌍
Destinations
340+ Worldwide
🏆
Alliance
Star Alliance Member
📅
Founded
1926 — Nearly 100 Years

Carry-On Baggage — What You Need to Know

United Airlines allows one carry-on bag and one personal item for most cabin classes. The standard carry-on dimensions are 56 × 35 × 22 cm. Basic Economy passengers are limited to one personal item only (no carry-on bag) unless they hold MileagePlus Premier status or a United co-branded credit card. Always verify at check-in as policies can vary by route.

Checked Baggage by Cabin Class

Allowances vary significantly by cabin. Economy includes 1 bag × 23 kg (on most routes); Premium Economy gets 2 bags × 23 kg; Business/First Class receives 2 bags × 32 kg. Basic Economy fares typically do not include any free checked bag and carry-on is restricted to personal item only.

Excess & Overweight Baggage Fees

For Economy, the first checked bag costs $40 and the second bag costs $50. Overweight bags (23–32 kg) incur a $100 fee per bag. Bags exceeding 32 kg may be refused. Pre-purchasing online or via the United app can save compared to airport rates. Always pre-book via united.com for the best rates.

Domestic vs International Differences

United's domestic (within the US) baggage rules can differ from international long-haul routes. Some international routes to Latin America and certain transatlantic flights may include one free checked bag for Economy. Always check the specific fare conditions when booking on united.com.

MileagePlus Member Benefits

United MileagePlus Premier members and holders of United co-branded credit cards receive free checked bags and carry-on allowances even in Basic Economy on eligible flights. Premier Gold, Platinum, and 1K members receive progressively more generous baggage benefits. Always check your full status benefits before purchasing additional bags.

Frequently Asked Questions

What is United Airlines' carry-on baggage allowance?
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United Airlines allows 1 carry-on bag (56×35×23 cm) plus 1 personal item for Economy, Premium Economy, Business, and First Class. Basic Economy passengers are limited to 1 personal item only, unless they hold MileagePlus Premier status or a United co-branded credit card.
Does Basic Economy include a free checked bag?
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No. Basic Economy on United Airlines does not include a free checked bag and restricts carry-on to personal items only. The first checked bag costs $40. MileagePlus Premier members may receive complimentary bags even on Basic Economy tickets.
How much does extra baggage cost on United Airlines?
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For Economy, the first bag costs $40 and the second costs $50. Overweight bags (23–32 kg) incur a $100 surcharge. Business and First Class passengers receive 2 bags × 32 kg free of charge.
What are the baggage rules for Business/First Class?
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Business and First Class passengers receive 2 checked bags × 32 kg each, plus 1 carry-on bag at no extra charge. Priority baggage handling is included, and bags typically arrive first at the carousel.
Can MileagePlus members get extra baggage?
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Yes — MileagePlus Premier members (Silver, Gold, Platinum, 1K) receive complimentary checked bags based on their tier. United co-branded credit card holders also receive a free first checked bag. Star Alliance Gold status also grants extra allowances on United flights.
Is this calculator official United Airlines policy?
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This tool is independently operated and not affiliated with United Airlines, Inc. Always verify final baggage rules at united.com or with United Airlines customer service before travel.
What happens if my bag is overweight?
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Bags between 23–32 kg (51–70 lbs) incur a $100 overweight fee. Bags over 32 kg (70 lbs) are not accepted and must be shipped as cargo. Splitting packing into two bags is often a cheaper alternative.