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Find flight deals from Chicago O'Hare International to London (ORD - LON)

Flexible dates? Here are the best fares found in the past 48 hours...

Book cheap flights from Chicago O'Hare International to London

(Round-trip)
Depart: Tue 21 Apr 2015 Return: Mon 27 Apr 2015 Trip spans 7 days
£569
Select
Turkish Airlines
Turkish Airlines
ORD
18:15
LHR
11:00
16h 45m
1 stop
LHR
12:30
ORD
19:25
30h 55m
1 stop
Depart: Wed 8 Apr 2015 Return: Sat 18 Apr 2015 Trip spans 11 days
£626
Select
Aer Lingus
Aer Lingus
ORD
11:50
LGW
22:25
10h 35m
1 stop
LGW
12:50
ORD
20:05
31h 15m
1 stop
Depart: Sat 4 Apr 2015 Return: Wed 8 Apr 2015 Trip spans 5 days
£641
Select
Aer Lingus
Aer Lingus
ORD
11:50
LHR
22:05
10h 15m
1 stop
LHR
03:30
ORD
15:50
12h 20m
1 stop
Depart: Thu 28 May 2015 Return: Sun 7 Jun 2015 Trip spans 11 days
£647
Select
SAS
SAS
ORD
12:25
LHR
02:50
14h 25m
1 stop
LHR
17:05
ORD
14:20
21h 15m
1 stop
Depart: Sat 9 May 2015 Return: Wed 27 May 2015 Trip spans 19 days
£655
Select
American Airlines
American Airlines
ORD
16:15
LHR
09:35
17h 20m
1 stop
LHR
14:00
ORD
09:56
19h 56m
1 stop
Depart: Sun 19 Jul 2015 Return: Tue 8 Sep 2015 Trip spans 52 days
£688
Select
Turkish Airlines
Turkish Airlines
ORD
18:15
LGW
23:05
28h 50m
1 stop
LGW
06:05
ORD
19:25
37h 20m
1 stop
Depart: Wed 3 Jun 2015 Return: Fri 5 Jun 2015 Trip spans 3 days
£705
Select
Iberia
Iberia
ORD
12:10
LHR
23:00
10h 50m
1 stop
LHR
02:20
ORD
16:15
13h 55m
1 stop
Depart: Thu 9 Apr 2015 Return: Sun 12 Apr 2015 Trip spans 4 days
£743
Select
SWISS
SWISS
ORD
15:15
LHR
22:00
30h 45m
1 stop
LHR
03:00
ORD
17:45
38h 45m
2 stops
Depart: Fri 3 Jul 2015 Return: Sun 5 Jul 2015 Trip spans 3 days
£756
Select
British Airways
British Airways
ORD
13:15
LHR
01:00
11h 45m
1 stop
LHR
02:20
ORD
14:55
12h 35m
1 stop
Depart: Mon 8 Jun 2015 Return: Wed 1 Jul 2015 Trip spans 24 days
£772
Select
Finnair
Finnair
ORD
14:10
LHR
22:05
7h 55m
nonstop
LHR
03:45
ORD
12:40
8h 55m
nonstop
Depart: Fri 10 Apr 2015 Return: Sun 19 Apr 2015 Trip spans 10 days
£789
Select
Austrian Airlines
Austrian Airlines
ORD
12:00
LHR
11:30
23h 30m
1 stop
LHR
15:25
ORD
15:35
24h 10m
1 stop
Depart: Thu 2 Jul 2015 Return: Sat 4 Jul 2015 Trip spans 3 days
£793
Select
United
United
ORD
14:25
LHR
07:05
16h 40m
1 stop
LHR
12:50
ORD
14:15
25h 25m
1 stop
Depart: Tue 2 Jun 2015 Return: Fri 5 Jun 2015 Trip spans 4 days
£801
Select
Aeromexico
Aeromexico
ORD
20:25
LHR
06:05
33h 40m
1 stop
LHR
18:35
ORD
15:47
21h 12m
1 stop
Depart: Sun 28 Jun 2015 Return: Wed 8 Jul 2015 Trip spans 11 days
£813
Select
Iberia
Iberia
ORD
12:40
LGW
00:00
11h 20m
1 stop
LGW
15:55
ORD
14:55
23h 00m
1 stop
Depart: Wed 5 Aug 2015 Return: Wed 12 Aug 2015 Trip spans 8 days
£816
Select
Air Canada
Air Canada
ORD
08:50
LHR
20:25
11h 35m
1 stop
LHR
04:30
ORD
17:05
12h 35m
1 stop
Depart: Sun 29 Mar 2015 Return: Mon 27 Apr 2015 Trip spans 30 days
£830
Select
LOT Polish Air
LOT Polish Air
ORD
17:25
LHR
07:00
13h 35m
1 stop
LHR
06:15
ORD
21:35
15h 20m
1 stop
Direct flights ORD - LON on British Airways
Flight No. Departure ORD Arrival LHR Mon Tue Wed Thu Fri Sat Sun Valid between
1541 08:45 22:45 29 Mar - 3 Jun
1543 16:40 06:35 29 Mar - 3 Jun
1663 16:55 06:55 1 Apr - 8 Apr
1663 18:00 08:05 14 Apr - 2 Jun
1663 18:10 08:05 29 Mar - 13 Apr
294 18:10 08:05 29 Mar - 14 Apr
294 18:10 08:05 16 Apr - 1 Jun
294 18:10 08:05 15 Apr - 2 Jun
1663 18:40 09:00 15 Apr - 3 Jun
296 20:35 10:20 30 Mar - 18 Oct
Airports
Origin

Chicago
£569
Destination

London
only £569
only £626