UAIATA Code

United Airlines

Full ServiceStar AllianceUnited States

United Airlines is a major American airline headquartered in Chicago. A founding member of Star Alliance, United operates a comprehensive domestic and international network. Known for its Polaris business class product.

1926

Founded

850

Fleet Size

340

Destinations

95K+

Employees

Official WebsiteContact Us

Quick Reference

IATA CodeUA
ICAO CodeUAL
CallsignUNITED
HeadquartersChicago, Illinois, USA
TypeFull Service
AllianceStar Alliance
Loyalty ProgramMileagePlus

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Highlights

Key Facts About United Airlines

Founding member of Star Alliance

United Polaris business class

Largest 787 Dreamliner operator

Major Pacific network

What to Expect

Services & Amenities

Enjoy premium services and world-class hospitality on United Airlines flights.

Complimentary Meals

Full dining service

Entertainment

Movies, TV & music

Wi-Fi Available

Stay connected

Premium Lounge

Airport lounges

Free Baggage

Checked bags included

Family Friendly

Kids amenities

Safety Certified

IATA/ICAO compliant

24/7 Support

Customer service

Fleet Information

850

Aircraft in Fleet

Aircraft Types

Boeing 787 DreamlinerBoeing 777Boeing 737 MAXAirbus A321XLR

Cabin Classes

United Polaris (Business)
United First
Premium Plus (Premium Economy)
Economy Plus
Economy

Baggage Allowance

Per passenger limits

economy23kg
premiumEconomy2x23kg
business2x32kg

Hub Airports

Main operating bases

Chicago O'Hare (ORD)
Newark (EWR)
Houston (IAH)
San Francisco (SFO)
Denver (DEN)
Excellence

Awards & Recognition

Best North American Airline Lounge
Pro Tips

Booking Tips for United Airlines

Book Early

Get the best fares by booking 4-6 weeks in advance for domestic and 2-3 months for international flights.

Flexible Dates

Flying midweek (Tuesday/Wednesday) often offers lower prices than weekend travel.

Compare Classes

Sometimes business class deals can be close to economy prices during sales.

Join Loyalty Program

Earn miles on every flight and unlock exclusive member benefits and upgrades.

Common Questions

Frequently Asked Questions

United Airlines is a full-service airline based in United States. It is a proud member of the Star Alliance alliance, giving passengers access to a global network of partner airlines.

United Airlines was established in 1926. With over 100 years of aviation experience, the airline has built a strong reputation in the industry.

Baggage allowances vary by travel class: Economy: 23kg • PremiumEconomy: 2x23kg • Business: 2x32kg. Always verify current policies when booking.

United Airlines operates an extensive network covering over 340 destinations worldwide. The airline's hubs are located at Chicago O'Hare (ORD), Newark (EWR), Houston (IAH), San Francisco (SFO), Denver (DEN), providing convenient connections across continents.

United Airlines offers 5 cabin classes: United Polaris (Business), United First, Premium Plus (Premium Economy), Economy Plus, Economy. Each class is designed to meet different travel needs and budgets.

Yes, United Airlines maintains excellent safety standards and has received recognition including: Best North American Airline Lounge. All operations comply with international aviation safety regulations.

You can book United Airlines flights through OiO Travels for competitive prices and personalized service. Our team compares fares, helps with special requests, and ensures you get the best value for your journey.

Yes! United Airlines's frequent flyer program, MileagePlus, rewards loyal travelers with miles on every flight. Members enjoy benefits like priority check-in, lounge access, bonus miles, and partner rewards.

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