Denver (DEN) – London (LHR)

Distance, flight time and the airlines that fly it, from open data.
Distance
7,517 km
4,671 mi · 4,059 nm
Flight time
9 h / 9 h 39 min
Average gate to gate: DEN → LHR / back
Time difference
7 h
CO2 per passenger
877 kg
One way, economy, incl. RF (519 kg CO2 only)
Passengers / year
408,376
Aug 2025 – Jul 2026 · −0.6%
Flights / week
36
Both directions, average
Seats filled
80%
509,132 seats a year
Airlines nonstop
2
UA, BA

Traffic: U.S. DOT, Bureau of Transportation Statistics, T-100 Segment (all carriers, scheduled service), Aug 2025 – Jul 2026. Distance: WGS-84 ellipsoid. CO2: UK DESNZ 2026 factors. Sources

Great circle from DEN to LHRDENLHR
Shortest path over the earth's surface (great circle). Real flights bend around weather, winds and airspace.

The way there

Heading from DEN
41°
Heading from LHR
306°
Halfway point
58.84, -60.16
Great-circle km
7,497 km (sphere, for EU261)
In the air DEN → LHR
8 h 29 min
In the air LHR → DEN
9 h
Clocks
London is 7 h ahead of Denver

The estimate for a route without real times is 9 h 40 min; how it is worked out is on Sources.

Passengers per month, both directions (Aug 2025 – Jul 2026)Busiest: June 2026: 45,922 passengers
020K40K60KAugSepOctNovDecJanFebMarAprMayJun45.9KJul
Show as a table
Month Passengers
Aug 202540,173
Sep 202542,522
Oct 202538,900
Nov 202521,436
Dec 202526,683
Jan 202623,464
Feb 202619,883
Mar 202628,292
Apr 202634,860
May 202641,518
Jun 202645,922
Jul 202644,723
Flights per month, both directions (Aug 2025 – Jul 2026)Busiest: July 2026: 186 flights
0100200AugSepOctNovDecJanFebMarAprMayJunJul186
Show as a table
Month Flights
Aug 2025183
Sep 2025178
Oct 2025173
Nov 2025109
Dec 2025121
Jan 2026119
Feb 2026111
Mar 2026130
Apr 2026178
May 2026184
Jun 2026179
Jul 2026186

Airlines flying DEN–LHR nonstop

Airline Flights / week Share of passengers
UAUnited Air Lines22
57%
BABritish Airways14
43%

Both directions, Aug 2025 – Jul 2026. Airlines with at least one flight a month. U.S. DOT, Bureau of Transportation Statistics, T-100 Segment (all carriers, scheduled service). Sources

Aircraft on this route

  • B787-900 Dreamliner · 1,140 flights
  • Airbus 350-1000 · 419 flights
  • Boeing 777-200ER/200LR/233LR · 275 flights
  • Boeing 777-300/300ER/333ER · 16 flights
  • Airbus Industrie A330-200 · 1 flight

Also carried: 7,149 tonnes of freight and 269 tonnes of mail a year (passenger and cargo flights).

Delay compensation (EU261 / UK261)

Measured by great-circle distance: 7,497 km.

DEN Denver → LHR London

UK261£520 for arriving 3 hours or more late (£260 if 3–4 hours).

Covers UK or EU airlines only.

LHR London → DEN Denver

UK261£520 for arriving 3 hours or more late (£260 if 3–4 hours).

Covers any airline.

Also owed for a cancellation with less than 14 days' notice or denied boarding. Not owed for extraordinary circumstances. On a connection, the distance to the final destination counts. From 23 October 2027 the EU's Regulation 2026/2202 applies; it keeps these amounts (what changes in 2027). Information, not legal advice.

Every airport pair between Denver and London

LHRLGWSTNLTNLCYSEN
DEN7,5177,5547,5287,4957,5437,575
BJC7,5387,5747,5487,5167,5647,595

Kilometres. Linked numbers have a page of their own. All Denver airports · All London airports

More routes from DEN

Route Distance Passengers / year
DEN → PHX968 km 2,417,314
DEN → LAX1,387 km 2,043,500
DEN → LAS1,011 km 2,041,165
DEN → ORD1,430 km 1,974,190
DEN → SEA1,648 km 1,819,437
DEN → SLC629 km 1,802,673
DEN → DFW1,032 km 1,745,260
DEN → SFO1,556 km 1,743,354
DEN → MSP1,094 km 1,715,510
DEN → ATL1,930 km 1,697,204

More routes from LHR

Route Distance Passengers / year
LHR → JFK5,555 km 2,984,474
LHR → DUB450 km 1,903,141
LHR → MAD1,243 km 1,550,044
LHR → AMS371 km 1,460,366
LHR → FRA656 km 1,410,787
LHR → LAX8,781 km 1,410,748
LHR → MUC944 km 1,304,262
LHR → IST2,493 km 1,281,925
LHR → ZRH790 km 1,147,298
LHR → CDG348 km 1,121,802

Questions

Denver (DEN) and London (LHR) are 7,517 km (4,671 miles, 4,059 nautical miles) apart, measured along the shortest path over the earth's surface.