Great-circle route ORD → LHR. Faint dots are other airports, for geographic context. Download this map — free to reuse with a link back to this page.
The flight time from Chicago to London is approximately 8h 08m nonstop. The distance is 3,942 miles (6,344 km). There are about 9 nonstop flights from Chicago to London per day.
That is a great-circle estimate, not a scheduled block time. An airline's published time will differ by roughly 15 to 45 minutes depending on routing, winds and taxi.
| Route | Est. time | Distance | Frequency | Airlines |
|---|---|---|---|---|
| ORD → LHR Chicago O'Hare International Airport to London Heathrow Airport |
8h 08m | 3,942 mi | 63/wk | American Airlines, British Airways, United Airlines |
Frequencies come from our most recent schedule sample. Where a pairing shows “—” we track it as an operating nonstop but hold no schedule sample for it — we would rather show nothing than guess.
3 airlines fly nonstop from Chicago to London, including American Airlines, British Airways, United Airlines.
Recent scheduled departures on this route have used the Boeing 767-300, Boeing 787, Boeing 787-9, Boeing 777-300ER and 1 other types.
Aircraft assignments change by season and by time of day.
On a long east–west route like this one the two directions do not take the same time. Aircraft flying eastbound ride the mid-latitude jet stream and typically arrive earlier than the westbound leg, which flies into it. The difference is commonly 30 to 90 minutes on transatlantic and transpacific flights, and it varies by season. The estimate above does not model wind — treat it as a midpoint and check the airline's own timetable for the block time on your date.
The distance from Chicago to London is 3,942 miles, or 6,344 kilometres.
| Great-circle distance | 3,942 mi |
| Kilometres | 6,344 km |
| Nautical miles | 3,426 nmi |
Measured airport to airport. The actual track is longer — aircraft follow airways, avoid restricted airspace and route around weather.
Yes. 3 airlines fly it nonstop, with about 63 departures a week. The route is in our live nonstop dataset, last seeded 2026-07-07.
About 8h 08m in the air on the ORD–LHR nonstop. That is a great-circle estimate from the 3,942-mile distance, not a scheduled block time — an airline's published time will differ by roughly 15 to 45 minutes depending on routing, winds and taxi.
3,942 miles (6,344 km) great-circle between Chicago O'Hare International Airport and London Heathrow Airport.
American Airlines, British Airways, United Airlines.
Recent scheduled departures have used the Boeing 767-300, Boeing 787, Boeing 787-9, Boeing 777-300ER. Assignments change by season and by time of day.
