Flights from Chicago O'Hare to London Heathrow

Our cheapest offers for flights from Chicago O'Hare to London Heathrow

Here you can compare cheap flights from Chicago O'Hare (ORD) to London Heathrow (LHR) 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 Heathrow. Prices and availability may change at any time.

Outbound Return Airlines Shop Baggage Price
Chicago O'Hare
London Heathrow
Outbound
04/21/25
1 Stopover (EWR)
UA2488, UA0014
13h 20min
Return
05/19/25
1 Stopover (ZRH)
LX0339, LX0006
22h 05min
United Airlines ?
$584
Best option
Chicago O'Hare
London Heathrow
Outbound
04/12/25
direct
BA1601
07h 55min
Return
04/27/25
direct
BA1546
08h 35min
British Airways ?
$720
found yesterday
Chicago O'Hare
London Heathrow
Outbound
04/21/25
1 Stopover (YVR)
AC1049, AC0860
15h 35min
Return
05/19/25
1 Stopover (ZRH)
LX0339, LX0006
22h 05min
Air Canada
$585
Chicago O'Hare
London Heathrow
Outbound
04/21/25
1 Stopover (YVR)
AC1049, AC0860
15h 35min
Return
05/19/25
1 Stopover (ZRH)
LX0339, LX0006
22h 05min
Air Canada
$587
Chicago O'Hare
London Heathrow
Outbound
04/21/25
1 Stopover (VIE)
OS0066, OS0451
34h 00min
Return
05/19/25
1 Stopover (VIE)
OS0452, OS0065
34h 15min
Austrian Airlines ?
$628
Chicago O'Hare
London Heathrow
Outbound
04/21/25
direct
AY5788
08h 00min
Return
05/19/25
1 Stopover (HEL)
AY1340, AY0009
16h 20min
Finnair
$631
Chicago O'Hare
London Heathrow
Outbound
04/21/25
1 Stopover (DUB)
EI0124, EI0162
09h 50min
Return
05/19/25
1 Stopover (DUB)
EI0153, EI0123
11h 10min
Aer Lingus Irish Airlines
$634
Chicago O'Hare
London Heathrow
Outbound
04/21/25
1 Stopover (IAD)
UA0444, UA0924
10h 41min
Return
05/19/25
1 Stopover (ZRH)
LX0339, LX0006
22h 05min
United Airlines ?
$653
Chicago O'Hare
London Heathrow
Outbound
04/21/25
1 Stopover (ZRH)
LX0009, LX0324
15h 50min
Return
05/19/25
1 Stopover (ZRH)
LX0339, LX0008
25h 50min
Swiss International Air Lines ?
$680
Chicago O'Hare
London Heathrow
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
Prices based on recent searches, subject to last-minute changes
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Important flight information

Flight information: Chicago O'Hare - London Heathrow

Roundtrip from $583.45
Distance 6351 km
Departure airport Airport Chicago O'Hare International Airport, IL (ORD)
Arrival airport Airport London Heathrow (LHR)
Destination country Flights to United Kingdom
Alternative routes to United Kingdom
Alternative flights to London Heathrow
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