Flights from Chicago to London

Our cheapest offers for flights from Chicago to London

Here you can compare cheap flights from Chicago (CHI) to London (LON) for one-way or return trips. The following offers were searched for and found on idealo during the last few days. Or start your own flight search to London. Prices and availability may change at any time.

Outbound Return Airlines Shop Baggage Price
Best option
Chicago
London
Outbound
06/20/25
1 Stopover (LIS)
TP0244, TP1366
23h 00min
Return
07/19/25
1 Stopover (LIS)
TP1351, TP0243
14h 30min
TAP Air Portugal
$931
Chicago
London
Outbound
06/20/25
1 Stopover (LIS)
TP0244, TP1366
23h 00min
Return
07/19/25
1 Stopover (LIS)
TP1351, TP0243
14h 30min
TAP Air Portugal
$935
Chicago
London
Outbound
06/20/25
1 Stopover (LIS)
TP0244, TP1352
12h 50min
Return
07/19/25
1 Stopover (LIS)
TP1369, TP0243
26h 20min
TAP Air Portugal ?
$968
Chicago
London
Outbound
06/20/25
1 Stopover (LIS)
TP0244, TP1350
17h 50min
Return
07/19/25
1 Stopover (LIS)
TP1369, TP0243
26h 20min
TAP Air Portugal ?
$1,146
Chicago
London
Outbound
06/20/25
1 Stopover (KEF)
FI0852, FI0472
13h 15min
Return
07/19/25
1 Stopover (KEF)
FI0473, FI0855
11h 35min
Icelandair ?
$1,269
Chicago
London
Outbound
06/20/25
1 Stopover (KEF)
FI0852, FI0450
10h 30min
Return
07/19/25
1 Stopover (KEF)
FI0455, FI0853
26h 50min
Icelandair ?
$1,293
Chicago
London
Outbound
06/20/25
1 Stopover (KEF)
FI0852, FI0450
10h 30min
Return
07/19/25
1 Stopover (KEF)
FI0455, FI0855
29h 50min
Icelandair ?
$1,351
Chicago
London
Outbound
06/20/25
1 Stopover (VIE)
OS0066, OS0453
34h 10min
Return
07/19/25
1 Stopover (VIE)
OS0456, OS0065
23h 50min
Austrian Airlines ?
$1,371
Chicago
London
Outbound
06/20/25
1 Stopover (ZRH)
LX0009, LX0324
15h 20min
Return
07/19/25
1 Stopover (ZRH)
LX0339, LX0008
25h 50min
Swiss International Air Lines ?
$1,484
Prices based on recent searches, subject to last-minute changes
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Tips and tricks to help you find cheap flights from Chicago to London

Favorite airline: Icelandair
Flight tickets on the route Chicago – London are most frequently booked with Icelandair.
Icelandair
28 %
Aer Lingus
15 %
SAS
10 %
Direct flights are more expensive
Direct flights on this route are $121.00 more expensive on average than flights with a stopover.
non stop flight
1 stop
2 stops
07h 40min
22h 55min
28h 11min
$ 594
$ 473
$ 585
Favourite connection: via Reykjavik-Keflavik
Stopover flights on this route are especially popular via Reykjavik-Keflavik, making up 36 % of bookings.
Route
bookings
1 stopover Reykjavik-Keflavik International
18h 50min, from $ 482
36 %
1 stopover Dublin
10h 30min, from $ 572
19 %
1 stopover Copenhagen
14h 15min, from $ 505
13 %

Useful information about the flight from Chicago to London

Flights from Chicago to London

The route from Chicago (CHI) to London (LON) is getting busier every year, with flights averaging between 4 and 8 flights a day. When booking, travelers are advised to choose the best airport for their particular stay in London. Since the city has 6 airports, all scattered around the map, this choice will make a large impact on the overall travel time. The actual flight time is around 7 hours and 50 minutes, covering a distance of 3 960 miles. Airlines offering a direct flight include: British Airways, American Airlines, and United.

Cheap flight tickets Chicago-London

Cheap tickets for flights are normally easy to find. The Chicago to London route is particularly popular with business travelers and those planning a nostalgic vacation in the city of kings, queens and knights. Low-cost flights can best be secured by making sure to book really early and avoiding holiday periods.

Destination London

All London airports are well linked to the capital city via public transport. From Heathrow Airport, passengers can, for instance, hop on a tube into central London or try one of the city's other iconic forms of transport: the red double decker buses and the black taxi cabs.

Important flight information

Flight information: Chicago - London

Roundtrip from $ 930,28
Flight duration min. 07:35 / max. 08:00
Return flight duration min. 08:45/ max. 09:15
Distance 6358 km
Flights per week 60
Departure airport Airport Chicago-IL all Airports (ORD, MDW, RFD) (CHI)
Arrival airport Airport London, all Airports (LCY, LGW, LHR, LTN, STN, SEN) (LON)
Destination country Flights to United Kingdom
Alternative flights to London
Flight destinations with a similar price
Flight destinations with a similar price