Find Cheap Flights to London

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.
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Book cheap flights from Chicago Midway to London

(Round-trip)
Depart: Tue Sep 12 2017 Return: Thu Oct 19 2017 Trip spans 38 days
KLM
KLM
MDW
LHR
10h 25m
1 stop
LHR
MDW
11h 38m
1 stop
Depart: Fri Nov 17 2017 Return: Sat Dec 2 2017 Trip spans 16 days
Virgin Atlantic
Virgin Atlantic
MDW
LHR
12h 30m
1 stop
LHR
MDW
12h 22m
1 stop
Depart: Thu Jan 11 2018 Return: Fri Jan 19 2018 Trip spans 9 days
Air France
Air France
MDW
LHR
11h 15m
1 stop
LHR
MDW
12h 22m
1 stop
Depart: Fri Oct 6 2017 Return: Mon Oct 16 2017 Trip spans 11 days
Delta
Delta
MDW
LHR
11h 15m
1 stop
LHR
MDW
12h 08m
1 stop
Depart: Wed Aug 16 2017 Return: Fri Aug 25 2017 Trip spans 10 days
Virgin Atlantic
Virgin Atlantic
MDW
LHR
12h 45m
1 stop
LHR
MDW
12h 36m
1 stop
Depart: Mon Jan 29 2018 Return: Fri Feb 9 2018 Trip spans 12 days
KLM
KLM
MDW
LHR
11h 15m
1 stop
LHR
MDW
11h 35m
1 stop
Depart: Fri Dec 29 2017 Return: Sun Jan 7 2018 Trip spans 10 days
Delta
Delta
MDW
LHR
16h 15m
1 stop
LHR
MDW
14h 10m
1 stop
Depart: Tue Oct 10 2017 Return: Sun Oct 22 2017 Trip spans 13 days
Virgin Atlantic
Virgin Atlantic
MDW
LHR
12h 35m
1 stop
LHR
MDW
16h 47m
1 stop
Depart: Tue Oct 10 2017 Return: Wed Oct 18 2017 Trip spans 9 days
KLM
KLM
MDW
LHR
11h 45m
1 stop
LHR
MDW
13h 42m
1 stop
Depart: Mon Nov 13 2017 Return: Fri Nov 24 2017 Trip spans 12 days
Virgin Atlantic
Virgin Atlantic
MDW
LHR
15h 35m
1 stop
LHR
MDW
12h 24m
1 stop
Depart: Mon Oct 23 2017 Return: Tue Nov 7 2017 Trip spans 16 days
KLM
KLM
MDW
LHR
10h 35m
1 stop
LHR
MDW
13h 57m
1 stop
Depart: Wed Sep 20 2017 Return: Tue Oct 10 2017 Trip spans 21 days
Delta
Delta
MDW
LHR
12h 39m
1 stop
LHR
MDW
12h 34m
1 stop
Depart: Fri Dec 1 2017 Return: Sat Dec 9 2017 Trip spans 9 days
Virgin Atlantic
Virgin Atlantic
MDW
LHR
11h 15m
1 stop
LHR
MDW
11h 36m
1 stop
Depart: Thu Jan 4 2018 Return: Sat Jan 13 2018 Trip spans 10 days
Delta
Delta
MDW
LCY
12h 55m
2 stops
LCY
MDW
17h 45m
2 stops
Depart: Thu Sep 14 2017 Return: Fri Sep 22 2017 Trip spans 9 days
KLM
KLM
MDW
LCY
16h 00m
2 stops
LCY
MDW
16h 05m
2 stops
Depart: Thu Sep 14 2017 Return: Sun Sep 24 2017 Trip spans 11 days
Virgin Atlantic
Virgin Atlantic
MDW
LHR
11h 55m
1 stop
LHR
MDW
12h 13m
1 stop
Depart: Mon Dec 25 2017 Return: Sat Jan 6 2018 Trip spans 13 days
Delta
Delta
MDW
LCY
14h 40m
2 stops
LCY
MDW
17h 45m
2 stops
Depart: Wed Aug 16 2017 Return: Thu Aug 24 2017 Trip spans 9 days
Virgin Atlantic
Virgin Atlantic
MDW
LHR
12h 45m
1 stop
LHR
MDW
13h 15m
1 stop
Depart: Mon Dec 25 2017 Return: Sat Jan 6 2018 Trip spans 13 days
Delta
Delta
MDW
LHR
13h 45m
2 stops
LHR
MDW
15h 13m
1 stop
Depart: Mon Oct 2 2017 Return: Wed Oct 11 2017 Trip spans 10 days
Delta
Delta
MDW
LCY
13h 10m
2 stops
LCY
MDW
16h 12m
2 stops
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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Here's why:

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

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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 can'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.

If you have more questions or if you have a bad price to report to us,
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Airports
Origin

Chicago
$635
Destination

London
only $635
only $746