United Airlines is headquartered in Chicago, Illinois and has major hubs at ORD, DEN, IAH, EWR and more. FlighTicketHub is not affiliated with United Airlines; call (800) 490-3234 to check live fares.
United Airlines at a glance
| Headquarters | Chicago, Illinois |
|---|---|
| Main hubs / bases | Chicago (ORD), Denver (DEN), Houston (IAH), Newark (EWR), San Francisco (SFO), Washington, D.C. (IAD), Los Angeles (LAX) |
| Alliance | Star Alliance |
About United Airlines
United Airlines runs seven U.S. hubs and flies a large international network across the Atlantic and Pacific from Newark, Chicago, San Francisco and Houston.
Where it is strongest
Wide Pacific and Asia coverage, Star Alliance partners such as Lufthansa and Air Canada, and a big presence at Denver and Chicago.
Booking tips
United's Basic Economy tickets can restrict carry-on bags on some routes; read the fare details before buying.
Route guides involving United Airlines hubs
These routes touch an airport where United Airlines has a large operation. Whether it flies a given route nonstop depends on the season, so confirm current service before you plan.
- Anchorage to ChicagoANC to ORD
- Anchorage to Los AngelesANC to LAX
- Atlanta to DenverATL to DEN
- Austin to ChicagoAUS to ORD
- Austin to DenverAUS to DEN
- Austin to Los AngelesAUS to LAX
- Baltimore to DenverBWI to DEN
- Boston to Los AngelesBOS to LAX
- Boston to San FranciscoBOS to SFO
- Charlotte to Los AngelesCLT to LAX
- Chicago to DenverMDW to DEN
- Chicago to AtlantaORD to ATL
- Chicago to BostonORD to BOS
- Chicago to ClevelandORD to CLE
- Chicago to DallasORD to DFW
- Chicago to DenverORD to DEN
- Chicago to Las VegasORD to LAS
- Chicago to LondonORD to LHR
- Chicago to MiamiORD to MIA
- Chicago to OrlandoORD to MCO
- Chicago to PhoenixORD to PHX
- Chicago to Washington, D.C.ORD to DCA
- Cleveland to DenverCLE to DEN
- Cleveland to Los AngelesCLE to LAX
Frequently asked questions about United Airlines
Is FlighTicketHub affiliated with United Airlines?
No. FlighTicketHub is an independent online travel agency operated by Travel TKT Ventures LLC. United Airlines operates its own flights, and its name belongs to its owner.
How do I book a United Airlines ticket through FlighTicketHub?
Search your route, then call (800) 490-3234 so an agent can check current United Airlines availability and fares for your dates. Your e-ticket is emailed after booking.
Where does United Airlines have hubs?
United Airlines operates major hubs or bases at Chicago (ORD), Denver (DEN), Houston (IAH), Newark (EWR), San Francisco (SFO), Washington, D.C. (IAD), Los Angeles (LAX).
What are United Airlines's baggage and change rules?
Baggage and change rules vary by fare, route and over time. Check the airline's current policy or ask us before you buy.
Last reviewed October 22, 2026. FlighTicketHub provides general information; confirm details with the airline before you travel.