Find cheap flights from London Heathrow Airport to Chicago O'Hare Airport

LHR - ORD

Find cheap flights from London Heathrow Airport to Chicago O'Hare Airport

Return
Economy
London (LHR)
Chicago O'Hare Intl
Fri 14/8
Fri 21/8
Any month
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Good to know

Low season

February Best time to beat the crowds (23% less expensive on average)

High season

July Most popular time to fly (35% more expensive on average)

Average price of a return ticket

£482 (avg. price over the last 2 weeks)

Good deal for a return ticket

£477 or less

When to book flights from London Heathrow to Chicago O'Hare Intl

Estimated return price
Average price per month
Flight prices as travel date approaches
-1 day
-2 days

Top tips for finding a cheap flight

  • Looking for a cheap flight? 25% of our users found flights on this route for £311 or less.
  • The cheapest flight from London Heathrow Airport to Chicago O'Hare Airport was found, on average, 89 days before departure.
  • Book at least 3 weeks before departure in order to get a below-average price.
  • High season is considered to be June, July and August. The cheapest month to fly is February.
  • Morning departure is around 2% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for booking London Heathrow Airport to Chicago O'Hare Airport flights

Which airlines have a flexible cancellation policy for flights from London Heathrow to Chicago O'Hare Intl due to COVID-19?

How long does a flight from London Heathrow Airport to Chicago O'Hare Airport take?

How many flights are there between London Heathrow Airport and Chicago O'Hare Airport?

Which airlines provide the cheapest flights from London Heathrow Airport to Chicago O'Hare Airport?

Which airlines fly most frequently between London Heathrow Airport and Chicago O'Hare Airport?

What’s the cheapest day of the week to fly from London Heathrow Airport to Chicago O'Hare Airport?

How does KAYAK find such low prices on flights from London Heathrow Airport to Chicago O'Hare Airport?

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London Heathrow Airport to Chicago O'Hare Airport?

What is the Hacker Fare option on flights from London Heathrow Airport to Chicago O'Hare Airport?

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London Heathrow Airport to Chicago O'Hare Airport?

Top 5 airlines serving London Heathrow to Chicago O'Hare Intl

Scores according to KAYAK customer reviews

8.1
SWISS
Overall score based on 8,971 reviews
8.2
Boarding
7.9
Comfort
8.7
Crew
7.8
Entertainment
8.0
Food
Airline reviews
Read more about SWISS

Book cheap flights from London Heathrow Airport to Chicago O'Hare Airport

Recent return flight deals

3/11
Tue
1 stop
TAP AIR PORTUGAL
14h 20m
LHR - ORD
10/11
Tue
1 stop
TAP AIR PORTUGAL
19h 35m
ORD - LHR
5/9
Sat
3 stops
Multiple Airlines
32h 07m
LHR - ORD
19/9
Sat
3 stops
Multiple Airlines
26h 30m
ORD - LHR
16/9
Wed
1 stop
Lufthansa
12h 45m
LHR - ORD
10/11
Tue
1 stop
Lufthansa
10h 11m
ORD - LHR
16/9
Wed
1 stop
SWISS
13h 20m
LHR - ORD
10/11
Tue
1 stop
SWISS
11h 40m
ORD - LHR
8/9
Tue
direct
Finnair
8h 35m
LHR - ORD
15/9
Tue
1 stop
Finnair
11h 14m
ORD - LHR
11/11
Wed
1 stop
TAP AIR PORTUGAL
25h 50m
LHR - ORD
15/11
Sun
1 stop
TAP AIR PORTUGAL
19h 35m
ORD - LHR
5/9
Sat
3 stops
Multiple Airlines
32h 07m
LHR - ORD
19/9
Sat
3 stops
Multiple Airlines
26h 30m
ORD - LHR
19/11
Thu
2 stops
Multiple Airlines
25h 10m
LHR - ORD
24/11
Tue
2 stops
Multiple Airlines
23h 15m
ORD - LHR
26/10
Mon
1 stop
TAP AIR PORTUGAL
25h 50m
LHR - ORD
29/10
Thu
1 stop
TAP AIR PORTUGAL
14h 45m
ORD - LHR
26/10
Mon
1 stop
TAP AIR PORTUGAL
25h 50m
LHR - ORD
29/10
Thu
1 stop
TAP AIR PORTUGAL
21h 00m
ORD - LHR
18/8
Tue
3 stops
Multiple Airlines
26h 57m
LHR - ORD
12/9
Sat
3 stops
Multiple Airlines
22h 50m
ORD - LHR
21/11
Sat
1 stop
TAP AIR PORTUGAL
24h 25m
LHR - ORD
29/11
Sun
1 stop
TAP AIR PORTUGAL
19h 35m
ORD - LHR
13/8
Thu
3 stops
Multiple Airlines
29h 32m
LHR - ORD
12/9
Sat
3 stops
Multiple Airlines
22h 50m
ORD - LHR
Show more results

Recent one-way flight deals

3/9
Thu
3 stops
Multiple Airlines
46h 17m
LHR - ORD
16/9
Wed
1 stop
Icelandair
26h 55m
LHR - ORD
4/9
Fri
3 stops
Multiple Airlines
43h 42m
LHR - ORD
30/9
Wed
3 stops
Multiple Airlines
41h 03m
LHR - ORD
29/9
Tue
3 stops
Multiple Airlines
58h 43m
LHR - ORD
20/8
Thu
3 stops
Multiple Airlines
49h 41m
LHR - ORD
14/9
Mon
3 stops
Multiple Airlines
50h 01m
LHR - ORD
14/10
Wed
1 stop
TAP AIR PORTUGAL
27h 30m
LHR - ORD
14/10
Wed
3 stops
Multiple Airlines
34h 43m
LHR - ORD
15/10
Thu
1 stop
TAP AIR PORTUGAL
16h 15m
LHR - ORD
1/10
Thu
3 stops
Multiple Airlines
41h 03m
LHR - ORD
1/10
Thu
1 stop
TAP AIR PORTUGAL
16h 15m
LHR - ORD
13/10
Tue
3 stops
Multiple Airlines
32h 58m
LHR - ORD
30/8
Sun
3 stops
Multiple Airlines
48h 37m
LHR - ORD
1/10
Thu
1 stop
TAP AIR PORTUGAL
16h 15m
LHR - ORD
4/10
Sun
3 stops
Multiple Airlines
34h 43m
LHR - ORD
14/8
Fri
3 stops
Multiple Airlines
36h 36m
LHR - ORD
27/9
Sun
3 stops
Multiple Airlines
52h 41m
LHR - ORD
Show more results
*
Prices are per person, are for e–tickets and include all taxes & fees in GBP.

We 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 hires 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 and someone from our team will get back to you promptly.

^
The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.
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