Flights from Chicago to London-Heathrow

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Outbound flight: 08/17/21
15:55 CHI
10:20 LHR
Chicago-IL all Airports (ORD, MDW, RFD)
London Heathrow
1 Stopover
TAP Air Portugal
$144
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Outbound flight: 05/13/21
15:55 CHI
11:00 LHR
Chicago-IL all Airports (ORD, MDW, RFD)
London Heathrow
1 Stopover
TAP Air Portugal
$145
Check
Outbound flight: 08/12/21
15:55 CHI
11:00 LHR
Chicago-IL all Airports (ORD, MDW, RFD)
London Heathrow
1 Stopover
TAP Air Portugal
$145
Check
Outbound flight: 05/10/21
15:55 CHI
10:20 LHR
Chicago-IL all Airports (ORD, MDW, RFD)
London Heathrow
1 Stopover
TAP Air Portugal
$145
Check
Outbound flight: 04/19/21
15:55 CHI
10:20 LHR
Chicago-IL all Airports (ORD, MDW, RFD)
London Heathrow
1 Stopover
TAP Air Portugal
$147
Check
Outbound flight: 05/31/21
18:10 CHI
17:45 LHR
Chicago-IL all Airports (ORD, MDW, RFD)
London Heathrow
1 Stopover
TAP Air Portugal
$148
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Outbound flight: 08/21/21
15:55 CHI
12:45 LHR
Chicago-IL all Airports (ORD, MDW, RFD)
London Heathrow
1 Stopover
TAP Air Portugal
$148
Check
Outbound flight: 05/11/21
15:55 CHI
12:45 LHR
Chicago-IL all Airports (ORD, MDW, RFD)
London Heathrow
1 Stopover
TAP Air Portugal
$153
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Outbound flight: 05/30/21
15:55 CHI
10:20 LHR
Chicago-IL all Airports (ORD, MDW, RFD)
London Heathrow
1 Stopover
TAP Air Portugal
$165
Check
Outbound flight: 08/15/21
15:55 CHI
12:45 LHR
Chicago-IL all Airports (ORD, MDW, RFD)
London Heathrow
1 Stopover
TAP Air Portugal
$166
Check
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-Heathrow

Favorite airline: Finnair
11 % of flights from Chicago to London Heathrow are booked with Finnair.
Finnair
11 %
Iberia
8 %
American Airlines
7 %
Tip: book 6 weeks before departure
The best time to find a cheap flight on this route is 6 weeks before travel. Save up to 28 %.
45 days before departure
Stopover flights are the cheapest connection
Flights with a stopover are on average $22.00 cheaper than direct flights.
non stop flight
1 stop
2 stops
07h 40min
11h 20min
15h 24min
$532
$510
$847
The favorite connection is non-stop
Flights from Chicago to London Heathrow are most often booked as a direct flight.
Route
bookings
Direct flights
07h 40min, from $532
47 %
1 stopover Reykjavik-Keflavik International
10h 15min, from $530
9 %
1 stopover New York - John F. Kennedy International Airport, NY
10h 25min, from $510
7 %
Flight information Chicago - London Heathrow
Alternative flight routes
Cheap direct flights
Flight details Chicago - London Heathrow
  • Flight duration: min. 07:35 / max. 08:00
  • Distance: 6341 km
  • Flights per week: 55
  • Return flight duration: min. 08:45 / max. 09:15
Top Flight Routes
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* Prices may vary, please check the travel details given by the online travel agency before booking. Prices include taxes.