Flight Routes from Denver to London Heathrow

Compare cheap outbound and return flights from Denver (DEN) to London Heathrow (LHR) and find the best offer from numerous airlines and travel agencies.

Trip type
Cheapest roundtrip flight
from€880
Fastest outbound flight
Fastest inbound flight
non-stop flights
8x / week
Flight distance
7,504 km
Time difference

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.

offers
Active filtersnone
Matching outbound flights11 of 11
fromto
dep.arr.
durationstopovers
  1. September 6 – 12, 2026
  2. September 13 – 19, 2026
  3. September 20 – 26, 2026
    1. DENLHR
      1 stopover
      1. United Airlines
    2. DENLHR
      1 stopover
      1. Delta Air Lines
    3. DENLHR
      1 stopover
      1. Air Canada
    4. DENLHR
      1 stopover
      1. Air Canada
    5. DENLHR
      1 stopover
      1. Air Canada
    6. DENLHR
      nonstop
      1. United Airlines
    7. DENLHR
      nonstop
      1. British Airways
    8. DENLHR
      1 stopover
      1. Aer Lingus Irish Airlines
    9. DENLHR
      nonstop
      1. United Airlines
    10. DENLHR
      nonstop
      1. United Airlines
    11. DENLHR
      1 stopover
      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 %

      Important flight information

      Discover more flights around Denver and London Heathrow

      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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