United Airlines Baggage Policy 2026: Fees, Sizes & Rules 

United Airlines allows one free carry-on bag (9×14×22 in) and one personal item (9×10×17 in) on most fares. Checked bag fees start at $45 prepaid for tickets purchased on or after April 3, 2026. Basic Economy passengers are limited to a personal item only on most domestic routes.

Baggage fees can quietly add $90–$150 to a round-trip ticket before you even leave the house. United Airlines updated its fee structure multiple times in 2026 first on April 3 for domestic routes, then again on May 12 for many international routes, and once more on July 21 for select Asia-Pacific destinations. If you bought your ticket before April 3, you’re under the old fee schedule. If not, new rates apply.

What Changed in United Airlines Baggage Policy in 2026?

United Airlines raised checked bag fees by $10 for most domestic routes effective April 3, 2026. According to CNBC (April 2, 2026), the increase was driven by a surge in jet fuel costs of more than 80% following geopolitical events in early 2026, with fuel averaging $4.88 per gallon in major U.S. cities nearly double the pre-conflict price. United last raised bag fees in February 2024 before this latest hike.

The fee increases rolled out in phases:

• April 3, 2026: Domestic U.S., Canada, Mexico, Caribbean, and short Latin America routes
• May 12, 2026: Africa, Asia, Europe, and South America
• July 21, 2026: Japan, Hong Kong, the Philippines, and intra-Asia routes

What Is United Airlines’ Carry-On Baggage Policy?

United Airlines allows one carry-on bag and one personal item at no charge on most fares. The carry-on must fit in the overhead bin and measure no more than 9 in × 14 in × 22 in (23 × 35 × 56 cm), including handles and wheels. The personal item must fit under the seat in front of you and measure no more than 9 in × 10 in × 17 in (22 × 25 × 43 cm). Common personal items include laptop bags, purses, and small backpacks.

United Airlines carry-on size at a glance:

Does United Airlines Have a Carry-On Weight Limit?

United Airlines does not publish a carry-on weight limit for standard tickets. This is a detail most travelers overlook and many competitor guides miss. However, overhead bin space is limited if your carry-on doesn’t fit, it may be gate-checked. On United Express regional flights, overhead space is often much smaller, so a bag that fits easily on a wide-body aircraft may be gate-checked on a smaller jet.

What Are the Carry-On Rules for Basic Economy Tickets?

Basic Economy passengers are permitted one personal item only on most domestic routes. Carry-on bags are not included and if you arrive at the gate with one, you’ll pay to check it. For tickets purchased on or after April 3, 2026, that gate-check fee is $75. The one exception: Basic Economy travelers flying to South America or across the Atlantic or Pacific can bring a full carry-on bag.

MileagePlus Premier members, qualifying United Chase credit cardholders, and Star Alliance Gold members retain their carry-on privileges even in Basic Economy. Note that the United Gateway℠ Card and United MileagePlus® Select Card do not qualify for this exemption.

Items you can always bring for free regardless of ticket type:

• Jacket or coat
• Umbrella
• Food or items purchased in the airport
• Reading material
• Mobility devices (wheelchairs, canes, crutches)
• Car seat, stroller, or child safety harness
• Diaper bag and breast pump
• Camera

What Is United Airlines’ Checked Baggage Policy?

United Airlines’ standard checked baggage allowance depends on your fare type, cabin class, MileagePlus status, and route. On most economy fares for domestic flights, checked bags are not included and fees apply. Premium cabin tickets (United Business®, United First®, United Polaris®) include free checked bags.

What Is the United Airlines Checked Bag Size Limit?

United Airlines accepts checked bags up to 62 total linear inches (length + width + height), which equates to approximately 30 in × 20 in × 12 in (76 × 52 × 30 cm), including handles and wheels. Bags measuring more than 115 total linear inches (292 cm) are classified as oversized and are not accepted under any circumstances.

What Is the United Airlines Baggage Weight Limit?

United Airlines’ weight limit for checked bags depends on your cabin class and MileagePlus status:

Bags over 100 lbs (45 kg) are not accepted as checked baggage. Musical instruments and assistive devices are exceptions musical instruments may be checked up to 165 lbs (75 kg), and assistive devices are accepted at no charge regardless of weight.

How Much Does United Airlines Charge for Checked Baggage in 2026?

For tickets purchased on or after April 3, 2026, United Airlines charges the following for domestic flights, Canada, Mexico, and Caribbean routes:

Prepaying saves $5 per bag compared to paying at the airport and saves $30 compared to being gate-checked. On a round trip with one bag, prepaying saves up to $60 versus gate-checking both ways.

For tickets purchased before April 3, 2026, the older rates apply:

• 1st bag: $35 prepaid / $40 at airport / $65 at gate
• 2nd bag: $45 prepaid / $50 at airport

What Does United Airlines Charge for International Checked Bags?

For most Trans-Atlantic and Trans-Pacific routes (excluding Basic Economy), the first checked bag is free. The second bag on these routes costs $100 in Economy and is free in Premium Economy and above.

International fee increases for Africa, Asia, Europe, and South America routes took effect on May 12, 2026. Routes to Japan, Hong Kong, and the Philippines were updated again on July 21, 2026. Use United’s baggage fee calculator at united.com for precise amounts by route.

How Many Bags Does United Airlines Allow for Free?

The number of free checked bags depends on your MileagePlus status, cabin class, and route:

Premier member benefits extend to up to nine companions on the same itinerary.

What Are United Airlines’ Fees for Oversize and Overweight Bags?

If a bag is both oversized and overweight, both fees apply separately. United accepts bags up to 115 total linear inches and up to 100 lbs anything beyond either of those limits is refused. For precise overweight fee amounts by route, United directs travelers to its baggage fee calculator, as fees vary by destination and ticket date. Paying for overweight bags in advance via the United app or website typically saves more than paying at the airport.

How Does United Handle Sports Equipment?

Most sports equipment counts toward your standard checked bag allowance and may be subject to checked bag fees. However, several categories receive oversize fee waivers:

What Is United Airlines’ Pet Travel Policy?

United Airlines allows small cats and dogs to travel in the cabin for $125 per segment (not per round trip this is where many travelers are caught off guard). A connecting itinerary with two segments costs $250 each way for your pet.

In-cabin pet requirements:

• Combined weight of pet + carrier: max 20 lbs (9.07 kg)
• Soft-sided carrier max size: 18 × 11 × 11 in
• Hard-sided carrier max size: 17.5 × 12 × 7.5 in

One practical note competitors rarely flag: on Boeing 737 MAX aircraft, under-seat height can run tighter than published dimensions. A soft-sided carrier that can compress to approximately 10 inches in height is the safer choice on these aircraft.

Cargo pet travel (PetSafe) is now limited to eligible active-duty military and State Department personnel only. General passengers cannot use United’s cargo pet service.

How Can You Avoid or Reduce United Airlines Baggage Fees?

Several legitimate strategies help reduce what you pay:

• Prepay online: Save $5 per bag vs. paying at the airport, and avoid the $75 gate-check fee
• Use the United app: Pay for bags before check-in and use the Bag Drop Shortcut to speed up airport processing
• United Chase credit card: Qualifying cardholders receive one free checked bag on United-operated flights
• MileagePlus Premier status: Even Silver status waives fees on one bag per flight
• Pay with MileagePlus miles: For U.S. flights, you can use miles to cover checked bag fees
• Book premium cabins: United Business, First, and Polaris fares include free bags
• Upgrade before check-in: If you upgrade to a premium cabin before checking bags, the fee waiver applies

What Happens If Your Bag Is Lost or Damaged on United Airlines?

United follows U.S. Department of Transportation regulations for lost and damaged baggage. For domestic flights, the DOT sets the liability limit at approximately $3,800 per passenger. For international travel, liability is governed by the Montreal Convention (approximately 1,288 SDR, or roughly $1,700–$1,800 depending on exchange rates).

To reduce risk: remove old bag tags before travel, photograph your bag alongside your bag claim receipt, place your phone number or email inside your bag, and use United’s in-app bag tracker or an AirTag to monitor your bag’s location in real time.

What Time Must You Drop Off Bags Before Departure?

United Airlines requires bags to be checked at least 45 minutes before departure on domestic flights and 60 minutes before departure on international flights. Exact cutoff times vary by airportmcheck united.com or the United app for your specific departure airport. Missing the bag check cutoff means your bag may not travel on your flight, even if you board.

Your 2026 United Airlines Baggage Checklist

Before your next trip:

•  Confirm your ticket type (Basic Economy, Economy, or premium cabin)
•  Check your MileagePlus status and whether your Chase card qualifies
•  Use the United baggage fee calculator for your exact route and ticket date
•  Prepay for bags online at least 24 hours before departure
•  Measure and weigh your bags at home not at the airport
•  Add contact information inside your checked bags
•  Arrive with enough time to meet the bag drop cutoff

Frequently Asked Questions

Can I use MileagePlus miles to pay for checked bags on United?
Yes, but only for United and United Express flights within the U.S. You can apply miles to bag fees before check-in online or through the United app.

 Does United’s Basic Economy allow any carry-on bags on international flights?
Yes. Basic Economy passengers flying to South America or on Trans-Atlantic or Trans-Pacific routes may bring a full carry-on bag in addition to their personal item.

If my bag is both overweight and oversized, do I pay both fees?
Yes. United charges each fee independently if a bag exceeds both the size limit (over 62 linear inches) and the weight limit simultaneously.

Does a United Chase credit card waive the bag fee for travel companions?
The free bag benefit typically applies to the primary cardholder only, not companions on the same booking, unless they also hold a qualifying card.

Can United baggage fee waivers from Premier status apply on partner airlines?
No. MileagePlus Premier and United Chase card fee waivers apply only on United- and United Express-operated flights, not on Star Alliance or other partner airlines.

 What sports equipment is not accepted on United at all?
Kayaks, canoes, and vaulting poles cannot be checked on United Airlines under any circumstances.

Can I bring two pets on a United flight?
United’s policy allows up to two pets per person if you purchase a second adjacent seat and both pets remain in their individual carriers for the full flight.

What is the musical instrument weight exception on United?
United accepts checked musical instruments up to 165 lbs (75 kg) significantly higher than the standard 100 lb maximum for other checked bags.

Are bag fees refundable if my United flight is canceled?
Yes. If United cancels your flight, you can request a full refund for any checked bag fees through United’s refunds page.

How does United’s “Bag Drop Shortcut” work?
You check your bag online or through the United app during check-in, then drop it in the designated Bag Drop Shortcut area at the airport skipping the standard check-in line.