Flight Routes from Denver to London Heathrow

Trip type

Our cheapest offers for flights from Denver to London Heathrow

Here you can compare cheap flights from Denver (DEN) to London Heathrow (LHR) for one-way or return trips. The following offers were searched for and found on idealo during the last few days. Or start your own flight search to London Heathrow. Prices and availability may change at any time.

Flight schedule from Denver (DEN) to London Heathrow (LHR)

Select a travel date in the flight schedule for the route from Denver (DEN) to London Heathrow (LHR) and compare affordable flight deals.

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Active filtersnone
Matching outbound flights6 of 6
fromto
dep.arr.
durationstopovers
  1. August 23 – 29, 2026
  2. Aug 30 – Sep 5, 2026
  3. September 6 – 12, 2026
    1. DENLHR
      1 stopover
      1. Air Canada
    2. DENLHR
      nonstop
      1. United Airlines
    3. DENLHR
      nonstop
      1. British Airways
    4. DENLHR
      1 stopover
      1. Aer Lingus Irish Airlines
    5. DENLHR
      nonstop
      1. United Airlines
    6. DENLHR
      nonstop
      1. United Airlines

      Tips and tricks to help you find cheap flights from Denver to London Heathrow

      Favorite airline: Icelandair
      85 % of travelers choose to book flights on this route with Icelandair, British Airways and Westjet.
      Icelandair
      58 %
      British Airways
      16 %
      Westjet
      11 %
      Direct flights are more expensive
      Compared to direct flights, flights with a stopover on this route are on average 21 % cheaper.
      non stop flight
      1 stop
      2 stops
      09h 00min
      20h 35min
      25h 55min
      578 $
      478 $
      1.211 $
      Favourite connection: via Reykjavik-Keflavik
      When booking flights from Denver to London Heathrow 79 % of travelers prefer to fly via Reykjavik-Keflavik.
      Route
      bookings
      1 stopover Reykjavik-Keflavik International
      20h 35min, from 478 $
      79 %
      Direct flights
      09h 00min, from 578 $
      14 %
      1 stopover Vancouver International Airport, BC
      35h 05min, from 579 $
      7 %

      Flight information: Denver - London Heathrow

      Roundtrip from 825,92 $
      Flight duration min. 09:00
      Return flight duration min. 09:55
      Distance 7504 km
      Flights per week 8
      Departure airport Airport Denver International Airport, CO (DEN)
      Arrival airport Airport London Heathrow (LHR)
      Destination country Flights to United Kingdom
      Departure airport - Destination country Denver International Airport, CO - United Kingdom
      Departure airport - City-Code Denver International Airport, CO - London
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