Flight Route · International
Chicago → London
ORD to LHR
O'Hare International Airport to London Heathrow Airport: 3,942 miles (6,345 km), about 8h 26m airborne, +6h time-zone shift on arrival.
Distance
3,942 mi
6,345 km
Flight time
8h 26m
block time, approx
Time-zone shift
+6h
Chicago → London
International?
Yes
United States → United Kingdom
Airlines serving both airports
These carriers operate scheduled service from both ORD and LHR. Direct service on this specific route depends on season and equipment — confirm with your booking source.
ORD–LHR questions, answered
How long is the flight from Chicago to London?
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A direct flight from O'Hare International Airport (ORD) to London Heathrow Airport (LHR) takes approximately 8h 26m. Actual block time varies with aircraft type, winds, and routing.
What is the distance from ORD to LHR?
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The great-circle distance from O'Hare International Airport to London Heathrow Airport is approximately 3942 miles (6345 kilometers). Actual flown distance varies slightly with the routing assigned by air traffic control.
What is the time difference between Chicago and London?
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London is +6h relative to Chicago. America/Chicago → Europe/London.
Which airlines fly from ORD to LHR?
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Carriers serving both endpoints include AA. Direct service depends on the specific carrier and season — confirm with your booking source for current schedules.
Is this an international flight?
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Yes. O'Hare International Airport is in United States, and London Heathrow Airport is in United Kingdom. Travelers should confirm passport, visa, and customs requirements before departure.
Can I track ORD–LHR flights on TripDesk365?
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Yes. TripDesk365 imports your booking confirmations from your inbox, identifies the route, and shows real-time status — gate changes, delays, and live aircraft position. Free for 14 days.
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