Navigating airline baggage policies is crucial for a smooth travel experience, and United Airlines’ approach in 2025 reflects both industry trends and the needs of a diverse, global passenger base. This in-depth guide covers United’s carry-on and checked baggage rules, outlines fees and exceptions, addresses special items and accessibility, and offers practical advice for avoiding common pitfalls. Whether you’re a frequent flyer or preparing for your first United journey, the following resource will help you pack smart and travel confidently.
Quick Reference: United Airlines Baggage Allowances & Fees
| Baggage Type | Allowance (Economy) | Size Limit (inches) | Weight Limit (lbs) | Standard Fee (US Dom.) |
| Carry-On | 1 carry-on + 1 personal item | 22 x 14 x 9 (carry-on) | No official limit | Included |
| Checked Bag | 0-2 (varies by fare/route) | 62 linear (L+W+H) | 50 (Economy), 70 (Premium) | $35 (1st), $45 (2nd) |
| Overweight | Up to 100 lbs (fee applies) | 62 linear | 51–70 ($100), 71–100 ($200) | — |
| Oversize | Up to 115 in. (fee applies) | 63–115 linear | 50 or 70 | $200 |
| Note: Fees and allowances for international flights and premium classes vary. Always verify your specific itinerary. |
United Airlines Carry-On Baggage Policy
Carry-On Size, Weight, and Number of Bags
United allows each passenger to bring one carry-on bag and one personal item at no extra charge, except for Basic Economy fares on most domestic and short-haul international flights, where only a personal item is permitted unless the traveler has elite status or an eligible credit card. The maximum dimensions for carry-on luggage are 22 x 14 x 9 inches (including handles and wheels), while personal items such as backpacks or purses must not exceed 17 x 10 x 9 inches.
United does not list a specific weight limit for carry-on bags, but you must be able to lift your bag into the overhead bin unassisted. Airlines typically reserve the right to gate-check items that are oversize or if overhead space runs out.
What Counts as a Personal Item?
Your personal item must fit under the seat in front of you. Acceptable examples include:
- Laptop bags
- Small backpacks
- Purses
- Briefcases
- Diaper bags
For instance, a traveler might bring a standard backpack (within size limits) and a roller suitcase on a standard Economy fare, but only a backpack or purse on Basic Economy unless qualifying for status exceptions.
Special Allowances & Exceptions
United permits additional items without counting them toward your bag allowance:
- Jackets or umbrellas
- Food for immediate consumption
- Approved mobility or medical devices (e.g., canes, CPAP machines)
- Child safety seats and strollers (for those traveling with young children)
International Basic Economy tickets often allow a full-size carry-on, so check your fare rules carefully before departure.
United Airlines Checked Baggage Policy
Standard Checked Bag Allowance by Fare/Class
- Economy/Premium Economy: 0–2 free checked bags, depending on route and ticket type. For most US domestic itineraries, no checked bag is included (fees apply), but transatlantic/transpacific routes often include one or two free checked bags.
- Business/First Class: Usually includes 2 free checked bags on all routes.
- Bag Size Limit: 62 linear inches (length + width + height).
- Weight Limit: 50 lbs (Economy/Premium Economy), 70 lbs (Business/First).
Checked Bag Fees
For US domestic flights, checked bag fees are typically:
- First checked bag: $35 (paid online in advance), $40 at airport
- Second checked bag: $45 (online), $50 at airport
- Additional bags: $150 each
International fees vary by destination. For example, to Europe on most Economy fares, the first bag is often free, while the second costs about $100.
Elite Members, Credit Card Holders, and Military Benefits
- MileagePlus Premier Silver/Gold/Platinum/1K: 1–3 free checked bags, depending on status and class.
- United Explorer Cardholders: 1 free checked bag for the cardholder and one companion.
- Active-duty U.S. military: Up to 5 free checked bags (100 lbs each) for official orders; 3 bags for personal travel.
Excess, Overweight, and Oversized Baggage
Definitions & Limits
- Excess Bags: More than the standard allowance.
- Overweight Bags: 51–70 lbs ($100 fee), 71–100 lbs ($200 fee). Bags over 100 lbs generally not accepted.
- Oversize Bags: 63–115 linear inches ($200 fee). Bags over 115 inches not accepted as checked baggage.
Fees for Extra, Heavy, and Large Bags
For each additional bag, expect to pay $150. Overweight and oversize fees are cumulative—so a bag that is both overweight and oversize can incur both charges. Fees may be higher on select international routes.
How to Pay for Additional Baggage
Pay baggage fees at booking, during online check-in, or at airport kiosks/counters. Prepaying often saves $5–$10 per bag versus airport payment.
Special Items, Sports Equipment, and Pets
Sports Equipment
United accepts most sports equipment (bikes, golf clubs, skis, surfboards) as checked baggage if within size and weight limits. Standard checked bag fees apply; oversize/overweight charges may apply if limits are exceeded.
Musical Instruments
Small instruments can be carried on if they fit the overhead bin or under the seat. Larger instruments may require purchase of an extra seat or must be checked (fees apply). Always call ahead for large or valuable items.
Traveling with Pets
- In-cabin: Small cats and dogs allowed; carrier size max: 18 x 11 x 11 inches; $125 fee each way.
- Checked pets: United’s PetSafe program is suspended as of 2025. Only service animals and certain exceptions allowed.
- Service Animals: Only trained service dogs permitted in-cabin. Emotional support animals are not recognized as service animals.
Medical and Mobility Devices
Wheelchairs, crutches, and approved medical equipment are carried free of charge and do not count against your baggage allowance. Notify United in advance for personalized assistance.
Baggage Policy for International Flights
Key Differences from Domestic Policy
International fares often include at least one free checked bag—even for Economy. For instance, most transatlantic and transpacific itineraries include:
- Economy: 1 free checked bag (50 lbs)
- Business/First: 2 free checked bags (70 lbs each)
Fees for extra, overweight, or oversize bags are typically higher on international routes.
Codeshares and Partner Airlines
If your itinerary includes flights on Star Alliance or other partner carriers, the most restrictive policy applies across the journey. Always confirm each segment’s rules—especially for complex, multi-airline itineraries.
Lost, Delayed, or Damaged Baggage
Immediate Steps to Take
If your bag is delayed, lost, or damaged:
- Report the issue at the airport’s United baggage service desk before leaving.
- Obtain a reference number and submit an online claim at united.com/bagclaim.
- Retain all travel documents and receipts for interim expenses.
Compensation and Reimbursement
United reimburses reasonable interim expenses for delayed bags (typically up to $50/day for five days) and compensates for lost/damaged items up to $3,800 per passenger on domestic flights (as per DOT regulations). International compensation is subject to the Montreal Convention, usually capped at approximately $1,700.
Tracking & Updates
Track your bag’s status online or via the United app using your reference number. Customer service is available 24/7 for updates.
United Airlines Baggage Policy for Travelers with Disabilities
United offers dedicated support for travelers with special needs. Mobility and medical devices travel free of charge. Request wheelchair assistance or additional support at booking or check-in. Service animals are accommodated in-cabin following ADA guidelines. United’s accessibility desk can address specific concerns before your trip.
United vs. Other Major Airlines: Baggage Policy Comparison
| Airline | Carry-on | 1st Checked Bag (US Dom.) | Overweight Fee (51–70 lbs) | Notable Perks |
| United | Yes* | $35–$40 | $100 | Free bag for elites/cards |
| Delta | Yes | $35–$40 | $100 | Similar to United |
| American | Yes | $35–$40 | $100 | Similar to United |
| Southwest | Yes | Free (2 bags) | $75 | No change/cancel fees |
| *United restricts carry-on for Basic Economy (except select routes or status holders). Southwest continues to stand out for checked bags. |
Interactive Tools & Resources
Baggage Fee Calculator
Estimate your fees at united.com/baggagecalculator or via the United app by entering your route, fare, and MileagePlus status.
Downloadable Quick Reference Guide
A printable PDF of United’s 2025 baggage allowances, fees, and contact numbers is available for offline access.
Real-World Scenarios & Expert Packing Tips
Scenario 1: Family of Four on a US Domestic Trip
A family of four flying Economy on a domestic route would typically pay $140 ($35 x 4) for one checked bag each, but can save by packing lighter and sharing suitcases. Children under two can bring a diaper bag and car seat at no extra charge.
Scenario 2: Business Traveler with Elite Status
A Premier Gold traveler flying to London in Business Class enjoys two free checked bags up to 70 lbs each, plus priority handling and waived oversize fees for select items—a significant savings compared to standard passengers.
Scenario 3: Budget Traveler on Basic Economy
A solo traveler on Basic Economy is limited to a personal item unless they pay for a carry-on or checked bag. Trying to board with a full-size carry-on may result in a $35–$40 checked bag fee plus a $25 gate handling charge. Apply for a United co-branded credit card in advance to unlock a free checked bag.
Top Packing & Check-In Tips
- Weigh bags at home to avoid unexpected fees.
- Maximize your personal item (e.g., a 17” laptop backpack).
- Prepay for checked bags online to save money.
- Avoid overpacking—fees for overweight/oversize bags add up quickly.
- Label all bags with your name, contact info, and itinerary.
FAQs
What is United’s carry-on size limit?
22 x 14 x 9 inches (including wheels and handles).
Can I bring a backpack and a suitcase as carry-ons?
Yes, if your fare allows one carry-on and one personal item.
How much are checked bag fees for international flights?
Usually $0–$100 for the first bag, $100+ for additional bags, depending on route.
What happens if my bag is overweight?
Fees range from $100 (51–70 lbs) to $200 (71–100 lbs).
Does United allow free bags for military?
Yes, up to 5 bags for official orders, 3 for personal travel.
Can I pool baggage with travel companions?
No, allowances are per passenger and cannot be combined.
How do I track a lost bag?
Use your reference number at united.com/bagtrack or on the United app.
Latest Updates & Policy Changes
- In 2025, United has increased domestic checked bag fees by $5 for airport payments.
- The PetSafe program remains suspended; only in-cabin pets/service animals permitted.
- Basic Economy fares continue to restrict carry-ons on most domestic routes.
- Digital bag tags are being piloted at select airports for faster check-in and tracking.
Conclusion & Official Resources
United Airlines’ baggage policy is detailed and occasionally complex, but a bit of preparation can save both time and money. Always review your ticket type, check for recent updates, and use United’s official baggage calculator for confirmation. For complete, route-specific details, visit United’s baggage policy page or contact customer service before your trip. Safe travels!
