Chicago -- O'Hare -- O'Hare is United 's largest hub and its hub for the Midwest. United flies approximately 36 million passengers through O'Hare every year, which is about 99,000 people per day, making it also the busiest airline at the airport. United 's corporate headquarters are also in Chicago. Houston -- Intercontinental -- located in Houston, is United 's second - largest hub. It is the airline 's hub for the Southern United States and primary gateway to Latin America. About 33.5 million passengers fly through IAH on United every year, or about 91,000 people per day. United currently has about 78 % of the seat share at Bush, making it the airport 's largest tenant. Newark -- The third - largest hub for United in terms of number of flights and destinations and United 's primary hub for the East Coast and a gateway to Europe, Latin America and Asia. About 28.5 million passengers fly on United through Newark every year, or about 78,000 people per day. United controls about 81 % of the slots at Newark and carries about 68 % of all passengers at the airport. United controls all of Terminal C and uses part of Terminal A for United Express Flights. Denver -- The fourth - largest hub in terms of number of destinations and flights and United 's primary hub for the central and western United States. In 2017 United flew approximately 25.9 million passengers through DIA or about 71,000 people per day. As of December 2017, United has about 42 % of the market share at DIA making it the airport 's largest airline. United occupies all 70 gates of Concourse B at the airport and a recently started 39-gate expansion to all three of the airport 's concourses will give United another 11 gates when the project is completed in 2021. San Francisco -- The fifth - largest hub in terms of number of flights, and sixth - biggest in terms of number of destinations, and United 's primary hub for the West Coast and gateway to Asia and Australia. About 22 million passengers pass through SFO every year on United, which is about 60,000 people per day. United has about 46 % of the market share at San Francisco International, making it the biggest airline at the airport. Washington -- Dulles -- The sixth - largest hub in terms of number of flights, and fifth - biggest in terms of number of destinations, and United 's secondary hub for the East Coast and gateway to Europe. United has about 65 % of the market share at Washington Dulles, making it the largest airline at the airport. About 14 million passengers fly through Dulles every year on United, which is about 38,465 people per day. Los Angeles -- The seventh - largest hub for United in terms of number of destinations and flights and United 's secondary hub for the West Coast and gateway to Asia and Australia. About 10 million passengers fly through LAX on United every year, or about 28,000 people per day. United has 15 % of the market share at LAX, making it the third - biggest carrier at the airport.
what are the major hubs for united airlines
Chicago -- O'Hare Houston -- Intercontinental Newark Newark Newark Denver San Francisco San Francisco Washington -- Dulles Los Angeles