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Outbound flight: 06/02/22
06:00 LHR
14:20 CHI
London Heathrow
Chicago IL all Airports (ORD, MDW, RFD)
1 Stopover
TAP Air Portugal
Return flight: 20/02/22
15:55 CHI
12:05 LHR
Chicago IL all Airports (ORD, MDW, RFD)
London Heathrow
1 Stopover
TAP Air Portugal
£304
Check
Outbound flight: 27/07/21
18:45 LHR
20:05 CHI
London Heathrow
Chicago IL all Airports (ORD, MDW, RFD)
1 Stopover
TAP Air Portugal
Return flight: 05/08/21
16:00 CHI
11:00 LHR
Chicago IL all Airports (ORD, MDW, RFD)
London Heathrow
1 Stopover
TAP Air Portugal
£308
Check
Outbound flight: 06/10/21
11:20 LHR
20:05 CHI
London Heathrow
Chicago IL all Airports (ORD, MDW, RFD)
1 Stopover
TAP Air Portugal
Return flight: 14/10/21
16:00 CHI
11:00 LHR
Chicago IL all Airports (ORD, MDW, RFD)
London Heathrow
1 Stopover
TAP Air Portugal
£328
Check
Outbound flight: 30/10/21
06:45 LHR
12:55 CHI
London Heathrow
Chicago IL all Airports (ORD, MDW, RFD)
1 Stopover
United Airlines
Return flight: 13/11/21
14:25 CHI
07:45 LHR
Chicago IL all Airports (ORD, MDW, RFD)
London Heathrow
1 Stopover
Lufthansa
£344
Check
Outbound flight: 14/09/21
09:30 LHR
15:45 CHI
London Heathrow
Chicago IL all Airports (ORD, MDW, RFD)
1 Stopover
Lufthansa
Return flight: 28/09/21
12:10 CHI
06:35 LHR
Chicago IL all Airports (ORD, MDW, RFD)
London Heathrow
1 Stopover
Air Canada
£357
Check
Outbound flight: 13/10/21
13:10 LHR
18:20 CHI
London Heathrow
Chicago IL all Airports (ORD, MDW, RFD)
1 Stopover
Icelandair
Return flight: 27/10/21
19:30 CHI
11:55 LHR
Chicago IL all Airports (ORD, MDW, RFD)
London Heathrow
1 Stopover
Icelandair
£358
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Outbound flight: 14/09/21
08:40 LHR
15:30 CHI
London Heathrow
Chicago IL all Airports (ORD, MDW, RFD)
1 Stopover
Swiss International Air Lines
Return flight: 28/09/21
18:04 CHI
10:30 LHR
Chicago IL all Airports (ORD, MDW, RFD)
London Heathrow
1 Stopover
United Airlines
£358
Check
Outbound flight: 30/10/21
15:00 LHR
21:26 CHI
London Heathrow
Chicago IL all Airports (ORD, MDW, RFD)
1 Stopover
Air Canada
Return flight: 13/11/21
17:50 CHI
10:20 LHR
Chicago IL all Airports (ORD, MDW, RFD)
London Heathrow
1 Stopover
Air Canada
£359
Check
Outbound flight: 14/09/21
10:00 LHR
12:50 CHI
London Heathrow
Chicago IL all Airports (ORD, MDW, RFD)
direct
United Airlines
Return flight: 28/09/21
06:25 CHI
06:35 LHR
Chicago IL all Airports (ORD, MDW, RFD)
London Heathrow
1 Stopover
Air Canada
£360
Check
Outbound flight: 14/09/21
06:00 LHR
15:30 CHI
London Heathrow
Chicago IL all Airports (ORD, MDW, RFD)
1 Stopover
Swiss International Air Lines
Return flight: 28/09/21
20:15 CHI
10:10 LHR
Chicago IL all Airports (ORD, MDW, RFD)
London Heathrow
direct
United Airlines
£360
Check
Prices based on recent searches, subject to last-minute changes
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Tips and tricks to help you find cheap flights from London Heathrow to Chicago

Favourite airline: e.g. Iberia, American Airlines, British Airways
Most travellers looking for flights on the route from London Heathrow to Chicago decide to book with Iberia.
Iberia
4 %
American Airlines
4 %
British Airways
4 %
Tip: book 3 months before departure
If booked 3 months before travel, flights cost only £268.00.
84 days before departure
Cheapest weekday: Wednesday
On this route, flights are cheapest on Wednesday when a ticket costs £258.00 on average.
Direct flights are more expensive
On this route, direct flights are £25.00 more expensive than flights with a stopover.
non stop flight
1 stop
2 stops
08h 55min
13h 55min
22h 50min
£283
£258
£294
The favourite connection is non-stop
37 % of all bookings on the route London Heathrow to Chicago are for non-stop flights.
Route
bookings
Direct flights
08h 55min, from £283
37 %
1 stopover Detroit Metropolitan Wayne County Airport, MI
32h 23min, from £271
7 %
1 stopover Atlanta International Airport, GA
14h 45min, from £308
6 %
Flight information London Heathrow - Chicago
Alternative flight routes
Cheap direct flights
Flight details London Heathrow - Chicago
  • Flight duration: min. 08:45 / max. 09:15
  • Distance: 6341 km
  • Flights per week: 53
  • Return flight duration: min. 07:35 / max. 08:00
Most Popular Flight Routes
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* Prices may vary, please check the travel details given by the online travel agency before booking. Prices include taxes.