JetSetAuthority

Route · North Atlantic

YYC Calgary ⇄ LHR London

Calgary International Airport (Canada) and London Heathrow Airport (United Kingdom): great-circle distance, estimated scheduled flight time each way, time difference and jet lag.

Distance7,014 km4,358 mi3,787 nautical miles
YYC → LHR8 h 40 minestimated block time
LHR → YYC9 h 25 minestimated block time
Clock change+6 hLondon vs Calgary, today
Great-circle route from Calgary (YYC) to London (LHR)YYCCalgaryLHRLondon
The shortest path over the Earth’s surface (great circle), drawn on a Natural Earth projection. Real flight paths bend around weather, winds and closed airspace.

Flight time each way

YYC → LHR

8 h 40 min

Estimated gate-to-gate scheduled time. Initial heading 40° (NE).

Leave Calgary Sat 7 Nov, 10:00 local → arrive London Sun 8 Nov, 01:40 local +1 day.

LHR → YYC

9 h 25 min

Estimated gate-to-gate scheduled time. Initial heading 320° (NW).

Leave London Sat 7 Nov, 10:00 local → arrive Calgary Sat 7 Nov, 12:25 local.

YYC-bound flights are the slower direction by about 40 minutes in our estimate: the route runs partly east–west through latitudes where the prevailing westerly winds at cruise height are strong, so heading east rides a tailwind and heading west fights a headwind. How we estimate it.

Distance

Great-circle distance7,014 km · 4,358 mi · 3,787 nmi
Initial heading40° (NE) from YYC; 320° (NW) from LHR
Farthest from the equator66.3°N — the path arcs north of both airports
Crossesneither the equator nor the 180th meridian
Share of the longest possible trip35% of the 20,015 km to the far side of the Earth

Time zones and jet lag

YYCAmerica/Edmonton — UTC−6 now; UTC−7 standard time, UTC−6 during daylight saving time
LHREurope/London — UTC+0 now; UTC+0 standard time, UTC+1 during daylight saving time
DifferenceLondon is 6 hours ahead of Calgary today.

Jet lag, flying YYC → LHR. Your body clock has to move 6 hours earlier, like an eastward trip. A common rule of thumb is that the body clock adjusts by roughly one time zone a day, so expect up to about 6 days to fully adjust. Shifting earlier (as here) is usually the harder direction; morning daylight at the destination helps. Flying the other way, the shift is reversed.

General information, not medical advice.

The two airports

YYC Calgary International AirportCalgary, Canada · longest runway 14,000 ft4,267 m LHR London Heathrow AirportLondon, United Kingdom · longest runway 12,799 ft3,901 m

More routes from YYC and LHR

YYCYVR Calgary – Vancouver 687 km427 mi · 1 h 55 min YYZYYC Toronto – Calgary 2,689 km1,671 mi · 4 h 25 min LHRMAN London – Manchester 243 km151 mi · 1 h 20 min LHROSL London – Oslo 1,206 km749 mi · 2 h 20 min LHRTLV London – Tel Aviv 3,589 km2,230 mi · 4 h 50 min LHRANU London – St. John's 6,553 km4,072 mi · 9 h 05 min LHRSEZ London – Mahé 8,176 km5,080 mi · 10 h LHRSYD London – Sydney 17,021 km10,576 mi · 19 h 30 min

Routes of a similar length

ATLCDG Atlanta – Paris 7,056 km4,385 mi · 8 h 25 min ORDFRA Chicago – Frankfurt 6,971 km4,331 mi · 8 h 25 min ATLAMS Atlanta – Amsterdam 7,066 km4,390 mi · 8 h 30 min HNLAKL Honolulu – Auckland 7,089 km4,405 mi · 9 h 15 min

Need a different pair? The flight-time calculator works for any two of 3,245 airports. Not covered: which airlines fly this route, schedules, fares and live status — that data is proprietary and we don’t guess it.

Photos on airport pages are credited there. Estimates are rounded to 5 minutes; typical error about 13 minutes (validation).