Find Deals on Flights from Chicago O'Hare International to London (ORD - LON)

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youths
12-17
Children
2-11
Seat Infants
under 2
Lap Infants
under 2
The price shown for each flight will be the average for all passengers including any infants.
Compare vs. KAYAK all | none
Browse Origins:
Browse Destinations:

Dates flexible? 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 May 24 2016 Return: Fri Jun 10 2016 Trip spans 18 days
British Airways
British Airways
ORD
LHR
7h 50m
nonstop
LHR
ORD
8h 50m
nonstop
Depart: Thu May 19 2016 Return: Sun May 22 2016 Trip spans 4 days
American Airlines
American Airlines
ORD
LHR
7h 50m
nonstop
LHR
ORD
8h 55m
nonstop
Depart: Sun Oct 23 2016 Return: Sun Oct 30 2016 Trip spans 8 days
Icelandair
Icelandair
ORD
LGW
10h 15m
1 stop
LGW
ORD
26h 20m
1 stop
Depart: Wed May 18 2016 Return: Thu May 19 2016 Trip spans 2 days
Austrian Airlines
Austrian Airlines
ORD
LHR
8h 00m
nonstop
LHR
ORD
9h 05m
nonstop
Depart: Sun Sep 4 2016 Return: Sun Sep 18 2016 Trip spans 15 days
Air Canada
Air Canada
ORD
LGW
10h 25m
1 stop
LGW
ORD
11h 40m
1 stop
Depart: Wed Jun 1 2016 Return: Thu Jun 2 2016 Trip spans 2 days
Major Airline
Major Airline
ORD
LCY
15h 00m
2 stops
LCY
ORD
22h 45m
2 stops
Depart: Sat May 14 2016 Return: Wed May 25 2016 Trip spans 12 days
Brussels Airlines
Brussels Airlines
ORD
LHR
8h 00m
nonstop
LHR
ORD
8h 40m
nonstop
Depart: Sun May 22 2016 Return: Tue May 31 2016 Trip spans 10 days
Finnair
Finnair
ORD
LHR
18h 45m
2 stops
LHR
ORD
9h 05m
nonstop
Depart: Sat Jul 2 2016 Return: Mon Jul 4 2016 Trip spans 3 days
United
United
ORD
LHR
12h 30m
1 stop
LHR
ORD
13h 35m
1 stop
Depart: Mon Aug 1 2016 Return: Wed Sep 7 2016 Trip spans 38 days
Aer Lingus
Aer Lingus
ORD
LHR
10h 15m
1 stop
LHR
ORD
14h 25m
1 stop
Depart: Sat Jun 11 2016 Return: Sun Jun 12 2016 Trip spans 2 days
Iberia
Iberia
ORD
LHR
7h 55m
nonstop
LHR
ORD
17h 50m
1 stop
Depart: Sun Jul 17 2016 Return: Mon Aug 1 2016 Trip spans 16 days
$1160
Select
SAS
SAS
ORD
LHR
14h 45m
1 stop
LHR
ORD
17h 55m
1 stop
Depart: Fri Nov 4 2016 Return: Sun Nov 13 2016 Trip spans 10 days
$1191
Select
Alitalia
Alitalia
ORD
LCY
23h 25m
2 stops
LCY
ORD
25h 27m
2 stops
Depart: Fri Nov 11 2016 Return: Fri Nov 18 2016 Trip spans 8 days
Icelandair
Icelandair
ORD
LGW
10h 45m
1 stop
LGW
ORD
10h 45m
1 stop
Depart: Tue Sep 6 2016 Return: Sat Sep 24 2016 Trip spans 19 days
Air Canada
Air Canada
ORD
LGW
12h 15m
1 stop
LGW
ORD
12h 35m
1 stop
Depart: Fri Sep 2 2016 Return: Sun Sep 4 2016 Trip spans 3 days
Major Airline
Major Airline
ORD
LHR
7h 45m
nonstop
LHR
ORD
8h 30m
nonstop
Depart: Sun Nov 13 2016 Return: Sun Nov 20 2016 Trip spans 8 days
Icelandair
Icelandair
ORD
LGW
10h 45m
1 stop
LGW
ORD
10h 45m
1 stop
Depart: Sun Oct 2 2016 Return: Mon Oct 10 2016 Trip spans 9 days
Air Canada
Air Canada
ORD
LGW
10h 50m
1 stop
LGW
ORD
12h 35m
1 stop
Depart: Thu Nov 3 2016 Return: Tue Nov 15 2016 Trip spans 13 days
Brussels Airlines
Brussels Airlines
ORD
LHR
7h 55m
nonstop
LHR
ORD
9h 15m
nonstop
Depart: Fri Jul 15 2016 Return: Sun Jul 17 2016 Trip spans 3 days
United
United
ORD
LHR
12h 30m
1 stop
LHR
ORD
13h 35m
1 stop
Direct flights ORD to LON on Delta
Flight # Depart ORD Arrive LHR Sun Mon Tue Wed Thu Fri Sat Valid Between
4389 5:55 pm 7:55 am Apr 28 - Oct 17
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

We make every attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller
At KAYAK we don’t set prices, so it’s not possible for us to guarantee what other companies are selling.

We aggregate tons of data for you
Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we don't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find on occasion that certain prices are no longer available.

More questions or if you have a bad price to report to us
Please send us an email and someone from our team will get back to you promptly.

Airports
Origin

Chicago
$730
Destination

London
only $730
only $784
only $750