Favourite airline: Finnair
7 % of flights on the route London Heathrow – Chicago are booked with Finnair.
Finnair
7 %
British Airways
6 %
Iberia
5 %
Tip: book 21 days before departure
Save up to 43 % by booking flights 21 days before departure.
21 days before departure
Direct flights are more expensive
Direct flights on this route are £13.00 more expensive on average than flights with a stopover.
non stop flight
1 stop
2 stops
09h 15min
23h 55min
37h 21min
£256
£243
£265
The favourite connection is non-stop
Direct flights are especially popular on this route. 39 % of travellers will book a non-stop flight.
Route
bookings
Direct flights
09h 15min, from £256
39 %
1 stopover Dublin
13h 30min, from £258
8 %
1 stopover Frankfurt-Main
13h 05min, from £248
7 %
Return from £243.00
Currently, flights on this route are cheapest departing on 21/01/19 and returning on 28/01/19.

£243
Cheap
£243
Expensive
£696