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

ORD - LHR

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

Round-trip
Economy
Chicago (ORD)
London Heathrow
Fri 5/29
Fri 6/5
Any month
Compare vs. KAYAK |
Search hundreds of travel sites at once for deals on flights to London Heathrow Airport

Good to know

Low season

February Best time to beat the crowds with an average 18% drop in price.

High season

December Most popular time to fly with an average 33% increase in price.

Average price of a round-trip

$463 (avg. price over the last 2 weeks)

Good deal for a round-trip

$517 or less

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

Estimated round-trip 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 $432 or less.
  • The cheapest flight from Chicago O'Hare Airport to London Heathrow Airport was found 84 days before departure, on average.
  • Book at least 4 weeks before departure in order to get a below-average price.
  • High season is considered to be November, December and January. The cheapest month to fly is February.
  • Morning departure is around 15% cheaper 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 Chicago O'Hare Airport to London Heathrow Airport flights

Are flight prices cheaper from Chicago O'Hare Airport to London Heathrow Airport because of Coronavirus (COVID-19)?

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

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

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

Do I need a passport to fly between Chicago O'Hare Airport and London Heathrow Airport?

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

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

How does KAYAK’s flight Price Forecast tool help me choose the right time to buy?

Book cheap flights from Chicago O'Hare Airport to London Heathrow Airport (round-trip)

Airports
Origin
Chicago
$418
only
$418
Destination
London
$418
only
$418
Tue, Nov 10
ORD
Chicago O'Hare Airport
LHR
London Heathrow Airport
14h 40m
Tue, Nov 17
LHR
London Heathrow Airport
ORD
Chicago O'Hare Airport
14h 25m
Trip: 8 days
Based on null reviews
Wed, Oct 28
ORD
Chicago O'Hare Airport
LHR
London Heathrow Airport
10h 20m
Wed, Nov 4
LHR
London Heathrow Airport
ORD
Chicago O'Hare Airport
11h 05m
Trip: 8 days
Based on null reviews
Sun, Oct 11
ORD
Chicago O'Hare Airport
LHR
London Heathrow Airport
10h 15m
Fri, Oct 16
LHR
London Heathrow Airport
ORD
Chicago O'Hare Airport
11h 15m
Trip: 6 days
Based on null reviews
Tue, Oct 6
ORD
Chicago O'Hare Airport
LHR
London Heathrow Airport
18h 50m
Tue, Oct 20
LHR
London Heathrow Airport
ORD
Chicago O'Hare Airport
11h 15m
Trip: 15 days
Based on null reviews
Tue, Oct 13
ORD
Chicago O'Hare Airport
LHR
London Heathrow Airport
10h 15m
Tue, Oct 20
LHR
London Heathrow Airport
ORD
Chicago O'Hare Airport
11h 15m
Trip: 8 days
Based on null reviews
Wed, Oct 14
ORD
Chicago O'Hare Airport
LHR
London Heathrow Airport
18h 50m
Tue, Oct 20
LHR
London Heathrow Airport
ORD
Chicago O'Hare Airport
11h 15m
Trip: 7 days
Based on null reviews
Mon, Sep 28
ORD
Chicago O'Hare Airport
LHR
London Heathrow Airport
18h 50m
Fri, Oct 2
LHR
London Heathrow Airport
ORD
Chicago O'Hare Airport
11h 15m
Trip: 5 days
Based on null reviews
Sun, Sep 13
ORD
Chicago O'Hare Airport
LHR
London Heathrow Airport
18h 50m
Wed, Sep 30
LHR
London Heathrow Airport
ORD
Chicago O'Hare Airport
11h 15m
Trip: 18 days
Based on null reviews
Sun, Sep 20
ORD
Chicago O'Hare Airport
LHR
London Heathrow Airport
10h 15m
Wed, Sep 30
LHR
London Heathrow Airport
ORD
Chicago O'Hare Airport
11h 15m
Trip: 11 days
Based on null reviews
Wed, Sep 16
ORD
Chicago O'Hare Airport
LHR
London Heathrow Airport
10h 15m
Wed, Sep 23
LHR
London Heathrow Airport
ORD
Chicago O'Hare Airport
11h 15m
Trip: 8 days
Based on null reviews
Wed, Nov 11
ORD
Chicago O'Hare Airport
LHR
London Heathrow Airport
19h 00m
Wed, Nov 18
LHR
London Heathrow Airport
ORD
Chicago O'Hare Airport
26h 50m
Trip: 8 days
Based on null reviews
Wed, Sep 23
ORD
Chicago O'Hare Airport
LHR
London Heathrow Airport
10h 15m
Wed, Oct 14
LHR
London Heathrow Airport
ORD
Chicago O'Hare Airport
11h 15m
Trip: 22 days
Based on null reviews
Tue, Oct 6
ORD
Chicago O'Hare Airport
LHR
London Heathrow Airport
18h 50m
Tue, Oct 13
LHR
London Heathrow Airport
ORD
Chicago O'Hare Airport
11h 15m
Trip: 8 days
Based on null reviews
Thu, Sep 10
ORD
Chicago O'Hare Airport
LHR
London Heathrow Airport
12h 35m
Wed, Sep 16
LHR
London Heathrow Airport
ORD
Chicago O'Hare Airport
26h 25m
Trip: 7 days
Based on null reviews
Sun, Sep 20
ORD
Chicago O'Hare Airport
LHR
London Heathrow Airport
10h 15m
Wed, Sep 30
LHR
London Heathrow Airport
ORD
Chicago O'Hare Airport
11h 15m
Trip: 11 days
Based on null reviews
Tue, Sep 22
ORD
Chicago O'Hare Airport
LHR
London Heathrow Airport
10h 15m
Tue, Oct 13
LHR
London Heathrow Airport
ORD
Chicago O'Hare Airport
11h 15m
Trip: 22 days
Based on null reviews
Tue, Sep 22
ORD
Chicago O'Hare Airport
LHR
London Heathrow Airport
18h 50m
Tue, Oct 13
LHR
London Heathrow Airport
ORD
Chicago O'Hare Airport
11h 15m
Trip: 22 days
Based on null reviews
Wed, Sep 23
ORD
Chicago O'Hare Airport
LHR
London Heathrow Airport
10h 15m
Wed, Sep 30
LHR
London Heathrow Airport
ORD
Chicago O'Hare Airport
26h 55m
Trip: 8 days
Based on null reviews
Tue, Sep 29
ORD
Chicago O'Hare Airport
LHR
London Heathrow Airport
18h 50m
Tue, Oct 13
LHR
London Heathrow Airport
ORD
Chicago O'Hare Airport
11h 15m
Trip: 15 days
Based on null reviews
Tue, Sep 29
ORD
Chicago O'Hare Airport
LHR
London Heathrow Airport
10h 15m
Tue, Oct 13
LHR
London Heathrow Airport
ORD
Chicago O'Hare Airport
11h 15m
Trip: 15 days
Based on null reviews
Show more results

Book cheap flights from Chicago O'Hare Airport to London Heathrow Airport (one-way)

Airports
Origin
Chicago
$251
only
$251
Destination
London
$251
only
$251
Wed, Jun 10
ORD
Chicago O'Hare Airport
LHR
London Heathrow Airport
10h 15m
Based on null reviews
Wed, Jun 10
ORD
Chicago O'Hare Airport
LHR
London Heathrow Airport
10h 15m
Based on null reviews
Mon, Jul 13
ORD
Chicago O'Hare Airport
LHR
London Heathrow Airport
48h 41m
Based on null reviews
Wed, Aug 12
ORD
Chicago O'Hare Airport
LHR
London Heathrow Airport
40h 00m
Based on null reviews
Mon, Jul 6
ORD
Chicago O'Hare Airport
LHR
London Heathrow Airport
48h 41m
Based on null reviews
Sun, Jul 5
ORD
Chicago O'Hare Airport
LHR
London Heathrow Airport
48h 41m
Based on null reviews
Thu, Aug 6
ORD
Chicago O'Hare Airport
LHR
London Heathrow Airport
22h 45m
Based on null reviews
Tue, Aug 11
ORD
Chicago O'Hare Airport
LHR
London Heathrow Airport
41h 05m
Based on null reviews
Sat, Aug 1
ORD
Chicago O'Hare Airport
LHR
London Heathrow Airport
52h 46m
Based on null reviews
Tue, Aug 11
ORD
Chicago O'Hare Airport
LHR
London Heathrow Airport
22h 45m
Based on null reviews
Sat, Jul 11
ORD
Chicago O'Hare Airport
LHR
London Heathrow Airport
51h 51m
Based on null reviews
Wed, Jul 15
ORD
Chicago O'Hare Airport
LHR
London Heathrow Airport
55h 42m
Based on null reviews
Tue, Aug 11
ORD
Chicago O'Hare Airport
LHR
London Heathrow Airport
12h 35m
Based on null reviews
Sat, Aug 1
ORD
Chicago O'Hare Airport
LHR
London Heathrow Airport
12h 35m
Based on null reviews
Thu, Jul 2
ORD
Chicago O'Hare Airport
LHR
London Heathrow Airport
51h 51m
Based on null reviews
Tue, Jul 14
ORD
Chicago O'Hare Airport
LHR
London Heathrow Airport
11h 17m
Based on null reviews
Sat, Jul 4
ORD
Chicago O'Hare Airport
LHR
London Heathrow Airport
10h 15m
Based on null reviews
Wed, Jun 17
ORD
Chicago O'Hare Airport
LHR
London Heathrow Airport
10h 15m
Based on null reviews
Wed, Jun 3
ORD
Chicago O'Hare Airport
LHR
London Heathrow Airport
10h 15m
Based on null reviews
Wed, Jul 1
ORD
Chicago O'Hare Airport
LHR
London Heathrow Airport
10h 15m
Based on null reviews
Show more results

Top 3 airlines serving Chicago O'Hare Intl to London Heathrow

Scores according to KAYAK customer reviews

7.3
Icelandair
Overall score based on 9,379 reviews
7.2
Boarding
7.3
Comfort
8.1
Crew
7.6
Entertainment
6.2
Food
Airline reviews
Read more about Icelandair
*
Prices are per person and are for e–tickets and include all taxes & fees in USD.

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 the prices, so it’s not possible for us to guarantee what other companies are selling.

We compile tonnes 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 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,
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.
-
1
  • Round-trip
  • One-way
  • Multi-city
  • Trip Builder
  • Economy
  • Premium Economy
  • Business
  • First
  • Multiple
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First