Cheap flights with United Airlines
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About United Airlines
United Airlines is one of the world's largest full-service carriers and a founding member of the Star Alliance, operating the most extensive US international network with 340+ destinations across 60+ countries from seven major hubs including Chicago O'Hare, Newark Liberty, Houston Intercontinental, Denver, San Francisco, Los Angeles, and Washington Dulles. The airline holds a dominant position on transpacific routes from its West Coast gateways, operating one of aviation's largest Boeing 787 Dreamliner fleets purpose-suited to long, thin international corridors. MileagePlus is consistently rated the most rewarding frequent flyer programme in North America, offering broad Star Alliance award availability and a deep network of hotel, car-hire, and credit-card transfer partners. United's Polaris business class and Premium Plus premium economy product rank among the strongest on long-haul routes to Europe and Asia.
Active United Airlines deals
United Airlines baggage policy
Checked bag fee on most Economy fares; MileagePlus status and co-branded card holders get free bags
Carry-on
1 cabin bag + 1 personal item
Checked bag
Not included on Basic Economy or Economy; from $35 for first bag
| Fare class | 🎒 Carry-on | 🧳 Checked |
|---|---|---|
| Basic Economy | ✗ (personal item only) | ✗ (paid add-on) |
| Economy | ✓ | ✗ (from $35) |
| Economy Plus | ✓ | ✗ (from $35) |
Booking tips for United Airlines
Compare fare classes carefully
United Airlines offers multiple fare tiers. The cheapest class may restrict changes and exclude checked baggage — compare the all-in price before purchasing.
Book long-haul 3–6 months out
Long-haul Economy sale fares sell fast. Set a price alert and move quickly when deals appear — the best fares are typically 3–6 months before departure.
Use miles for upgrades
United Airlines's frequent flyer programme offers excellent value for upgrades. Earn miles on Economy fares and redeem them for a premium cabin on long-haul routes.
Route via ORD
Connecting via United Airlines's hub at ORD can open up cheaper itineraries — especially when direct fares from your home airport are expensive or unavailable.