How long is the flight from Chicago to London?
A nonstop flight from Chicago (ORD) to London (LHR) takes about 7h 50m. Itineraries with a connection typically add three to six hours depending on the layover.
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Cheap Flights from Chicago to London (ORD → LHR)
Flights from Chicago (ORD) to London (LHR) cover about 6,360 km. Nonstop flights take about 7h 50m, and the route is served by British Airways, American Airlines, United Airlines among others. Fares are usually lowest in January to March and highest in June to August. The cheapest fare currently tracked on this route is USD 303, departing Sat, Oct 3, 2026.
Search live ORD → LHR faresFrom USD 303
Chicago to London at a glance
- Nonstop flight time
- about 7h 50m
- Distance
- 6,360 km
- Cheapest months
- January to March
- Airlines
- 4 carriers
Airlines on this route: British Airways, American Airlines, United Airlines, Virgin Atlantic. Departure airport: O'Hare International (ORD), United States. Arrival airport: Heathrow (LHR), United Kingdom.
Cheapest tracked ORD → LHR fares
One-way fares seen recently, refreshed several times a day. Run a live search for exact availability on your dates.
Chicago to London — frequently asked questions
How much does a flight from Chicago to London cost?
The cheapest one-way fare currently tracked is USD 303 for a departure on Sat, Oct 3, 2026. Prices move daily — run a live search for the exact fare on your dates.
Which airlines fly from Chicago to London?
British Airways, American Airlines, United Airlines, Virgin Atlantic operate or connect on this route. FlyTicket compares all of them in a single search, alongside fares from online travel agencies.
When is the cheapest time to fly from Chicago to London?
Fares on this route are generally lowest in January to March and highest in June to August. Midweek departures are usually cheaper than weekend ones, and booking one to three months ahead beats last-minute pricing on most dates.
How far is London from Chicago?
The great-circle distance from O'Hare International (ORD) to Heathrow (LHR) is about 6,360 km.
Are there direct flights from Chicago to London?
Yes. Nonstop service is available and takes about 7h 50m. You can also filter results to direct flights only.
Does FlyTicket charge extra to book Chicago to London flights?
No. FlyTicket compares fares and hands you off to the airline or travel agency to complete the booking at the price shown. There is no FlyTicket booking fee.
Related routes
- New York → LondonJFK–LHR
- Chicago → DubaiORD–DXB
- Mumbai → LondonBOM–LHR
- Singapore → LondonSIN–LHR
- Dubai → LondonDXB–LHR
- Toronto → LondonYYZ–LHR
Browse every tracked route on the flight routes index.