April is by far the best month, wherein you can get cheapest flights for Chicago to London. Meanwhile, April is perceived as the expensive month due to the varying factors. That’s why it’s highly advised to make advanced online flight booking to save huge amounts of money.
April- During this month the footfall is less so, the flight is gradually inexpensive.
April - is the cheapest month to book round trip flights.
Cheapest Fare- Currently, this is the fare price based on the current demand.
Disclaimer - All the above-mentioned fares were found within last 48 hrs. The displayed fares are based on historical data and are subject to change. The fares cannot be guaranteed at the time of booking.

Chicago
06:00
Chicago
Chicago O Hare International Airport
Sat , 09 May 2026

London
06:30
London
London Heathrow Airport
Sun, 10 May 2026

Chicago
09:41
Chicago
Chicago O Hare International Airport
Mon , 04 May 2026

London
06:30
London
London Heathrow Airport
Tue, 05 May 2026

Chicago
09:41
Chicago
Chicago O Hare International Airport
Wed , 06 May 2026

London
06:30
London
London Heathrow Airport
Thu, 07 May 2026

Chicago
18:00
Chicago
Chicago O Hare International Airport
Wed , 22 Apr 2026

London
12:45
London
London Heathrow Airport
Thu, 23 Apr 2026

Chicago
18:00
Chicago
Chicago O Hare International Airport
Sun , 26 Apr 2026

London
22:00
London
London Heathrow Airport
Mon, 27 Apr 2026

Chicago
19:25
Chicago
Chicago O Hare International Airport
Mon , 27 Apr 2026

London
11:55
London
London Heathrow Airport
Tue, 28 Apr 2026

Chicago
19:25
Chicago
Chicago O Hare International Airport
Sun , 26 Apr 2026

London
20:20
London
London Heathrow Airport
Mon, 27 Apr 2026

Chicago
19:25
Chicago
Chicago O Hare International Airport
Wed , 22 Apr 2026

London
20:20
London
London Heathrow Airport
Thu, 23 Apr 2026

Chicago
18:05
Chicago
Chicago O Hare International Airport
Sat , 09 May 2026

London
12:45
London
London Heathrow Airport
Sun, 10 May 2026

Chicago
17:55
Chicago
Chicago O Hare International Airport
Tue , 21 Apr 2026

London
10:15
London
London Heathrow Airport
Wed, 22 Apr 2026

Chicago
17:55
Chicago
Chicago O Hare International Airport
Mon , 27 Apr 2026

London
10:15
London
London Heathrow Airport
Tue, 28 Apr 2026











Flying from Chicago to London has never been easier. Whether you’re planning a short business trip, a weekend getaway, or reconnecting with family and friends, Easemytrip brings you the best deals, seamless booking, and flexible options for this popular flight route. Our platform is built to help travellers like you compare flight prices, explore direct and connecting options, and find the perfect departure time — all within a few clicks.
The air route between Chicago to London is one of the most frequently travelled, offering reliable services from top airlines and excellent connectivity between Chicago O Hare International Airport (ORD) and London Heathrow Airport (LHR). You can expect a flight distance of approximately 6343 km, and most direct services cover it in around 20:57.
Let’s take a closer look at everything you need to know before booking your flight from Chicago to London.
| Flight Details | Information |
|---|---|
| Route Distance | 6343 km |
| Average Flight Time | 20:57 hrs |
| Departure Airport | Chicago O Hare International Airport (ORD) |
| Arrival Airport | London Heathrow Airport (LHR) |
| Cabin Classes Available | Economy Class, Premium Economy, Business Class, First Class |
| Direct Flights | NO |
| Common Airlines | JetBlue Airways, TAP Air Portugal, Icelandair, United Airlines |
The route is serviced regularly by both full-service and budget airlines, catering to all types of travellers — from those looking for no-frills budget options to those preferring business and first-class comfort. If you're flying for business, early morning weekday flights are a great choice, while leisure travellers often opt for weekend and evening departures.