Favourite airline: e.g. Finnair, British Airways, Iberia
18 % of flights booked on the route from London Heathrow to Chicago are booked with Finnair, British Airways and Iberia.
Finnair
6 %
British Airways
6 %
Iberia
6 %
Tip: book 3 months before departure
The best time to find a cheap flight on this route is 3 months before travel. Save up to 49 %.
77 days before departure
Cheapest weekday: Thursday
Flight prices fluctuate during the week. Flights are cheapest on   Thursday by 26 %.
Stopover flights are the cheapest connection
Compared to flights with a stopover, direct flights are £12.00 more expensive on this route.
non stop flight
1 stop
2 stops
08h 55min
13h 55min
14h 58min
£263
£251
£299
The favourite connection is non-stop
Direct flights are especially popular on this route. 34 % of travellers will book a non-stop flight.
Route
bookings
Direct flights
08h 55min, from £263
34 %
1 stopover Detroit Metropolitan Wayne County Airport, MI
12h 46min, from £263
8 %
1 stopover Dublin
25h 20min, from £297
6 %
Return from £251.00
A return flight costing only £251.00 is for example available departing on 23/05/19 and returning on 03/06/19.

£251
Cheap
£0
Expensive
£0