Flight time from Chicago to London

How long is the flight from Chicago to London?

A non-stop flight from Chicago to London takes about 8 hours and 15 minutes. The two cities are 6,345 km (3,942 miles) apart in a straight line, measured between O’Hare (ORD) and Heathrow (LHR).

The estimate assumes an average speed of about 830 km/h plus around 35 minutes for taxiing, take-off and landing. Real schedules vary with the airline, aircraft, route and winds – heading east with the jet stream, flights are often a little quicker than this. Check your booking for the exact time.

Time difference and arrival time

London is 6 hours ahead of Chicago right now. A flight leaving Chicago at 10:00 local time lands at about 00:15 local time in London the next day. With a 6h shift, expect some jet lag: as a rough guide the body adjusts by about an hour a day, and flying east (as on this trip) is usually harder than the other way.

Current time in Chicago · Current time in London · Chicago and London time difference · Flight time from London to Chicago

More flights from Chicago

• Chicago to Toronto 1h 25m
• Chicago to New York 2h
• Chicago to Miami 2h 55m
• Chicago to Cancún 3h 25m
• Chicago to Mexico City 3h 50m
• Chicago to Los Angeles 4h
• Chicago to Phuket 17h 55m
• Chicago to Sydney 18h 30m
• Chicago to Kuala Lumpur 18h 35m
• Chicago to Singapore 18h 45m

More flights from London

• London to Paris 1h
• London to Amsterdam 1h
• London to Dublin 1h 10m
• London to Frankfurt 1h 20m
• London to Berlin 1h 45m
• London to Barcelona 2h
• London to Singapore 13h 40m
• London to Buenos Aires 14h
• London to Jakarta 14h 40m
• London to Bali 15h 40m

Why arrival times look strange

Airline schedules always show local times: departure in the departure city’s time and arrival in the arrival city’s time. Fly east and you “lose” hours – a 7-hour flight from New York to London leaving at 19:00 lands at 07:00 the next morning. Fly west and you gain them, which is how you can land in Los Angeles almost at the same clock time you left Tokyo. This calculator handles the time zones and daylight saving time for you.

How the flight time estimate works

In estimate mode the calculator measures the great-circle distance between the two cities – the shortest route over the Earth’s surface – and assumes an average speed of about 830 km/h (515 mph), plus around 35 minutes for taxiing, take-off and landing. That gives a good guide for a non-stop flight. Real schedules vary with the airline, aircraft, winds and route: flights heading east with the jet stream are often quicker than the same trip heading west, so always check your booking for the exact time.