£383 Cheap United flights from London to Denver (LHR→DEN)

View £383 flight on Mon, 14 Sept 2026Opens in a new window

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 25% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

United flights from London to Denver (LHR→DEN)

Prices were available within the past 7 days and start at £383 for one-way flights and £576 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, 14 Apr - Mon, 20 Apr
LHR
London
DEN
Denver
£576 Return, found 3 days ago
£576
Return
found 3 days ago
Select United flight, departing Tue, 14 Apr from London to Denver, returning Mon, 20 Apr, priced at £576 found 3 days ago

Alternative airports near Denver

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Denver Intl. DEN. Cheapest option available. Average driving time to city centre is 32 minutes. Flights from £486
DEN
Denver Intl.
Cheapest
Average driving time to city centre32 min
Flights from £486

Find the cheapest month to fly from London (LHR) to Denver (DEN)

January is typically the cheapest month to fly

From £380 - £872 per traveller.

The Annual Holiday Sale

Members save up to 40% on hotels and holiday homes. Plan this year’s big trip and save.
Book now

Travel information

Origin airport
Heathrow
Destination airport
Denver Intl.
Airlines serving
Aer Lingus, Air Canada, Air France, Alaska Airlines, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, Finnair, Iberia, Icelandair, JetBlue Airways, KLM, Lufthansa, Swiss International Air Lines, Turkish Airlines, United, Virgin Atlantic, WestJet
Popular airline
Lufthansa
Distance
7454 km
Average flight time
2 hours 57 mins

Explore a world of travel with Expedia

*Available to Expedia members.