Find Cheap Flights from Chicago O'Hare International to London (ORD - LON)

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Chicago O'Hare International to London Flight Information

Flights Arrive in London
Flights Depart from Chicago O'Hare International
Flight Price $294
Distance 3,954 miles
Airlines Air Canada, Finnair, Norwegian, Norwegian Air UK, British Airways, Lufthansa, Icelandair, Iberia, WOW air, SWISS, TAP AIR PORTUGAL, Aer Lingus

Good to Know

Low Season:
April
Best time to beat the crowds
3%
expected price decrease
High Season:
July
Most popular time to fly
18%
expected price increase
Average Price:
$477
(avg. price over the last 2 weeks)
Good Deal:
$390
or less (round trip)

When to Book Flights from Chicago O'Hare International to London

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 $390 or less.
The cheapest flight from Chicago O'Hare International to London was found 86 days before departure, on average.
Book at least 2 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 April.
Morning departure is around 4% 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 Chicago O'Hare International to London Flights

How long does a flight from Chicago O'Hare International to London take?
An average nonstop flight takes 7h 40m, covering a distance of 3954 miles.
How many flights are there between Chicago O'Hare International and London?
There are 593 (nonstop) flights between Chicago O'Hare International and London per week, averaging 87 per day.
Which airlines provide the cheapest flights from Chicago O'Hare International to London?
In the past 3 days, the cheapest round-trip tickets were found on Air Canada ($294), Finnair ($331) and Norwegian ($337).
Do I need a passport to fly between Chicago O'Hare International and London?
Yes.
Which airlines fly most frequently between Chicago O'Hare International and London?
Finnair (11 times daily), British Airways (11 times daily), Iberia (9 times daily) are the most frequent flyers on this route.
What’s the cheapest day of the week to fly Chicago O'Hare International to London?
For Chicago O'Hare International to London, Friday is the cheapest day to fly on average and Monday is the most expensive. Flying from London back to Chicago O'Hare International, the best deals are generally found on Wednesday, with Thursday being the most expensive.

Find the Flight That Suits You Best

Wed 12/12
Wed 12/19
Any month
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Cheapest

Airline
Departure & Arrival Time
Stops
Duration
Air Canada Air Canada
ORD-LHR
12:00a - 12:00a
1 stop
19h 30m
ORD-LHR
$294
Priceline
Air Canada Air Canada
LHR - ORD
12:00a - 12:00a +1
1 stop
24h 40m
LHR - ORD
View Deal

Best

Airline
Departure & Arrival Time
Stops
Duration
SWISS SWISS
ORD-LCY
12:00a - 12:00a
1 stop
16h 30m
ORD-LCY
$434
Priceline
SWISS SWISS
LCY - ORD
12:00a - 12:00a
1 stop
12h 25m
LCY - ORD
View Deal

Quickest

Airline
Departure & Arrival Time
Stops
Duration
WOW air WOW air
ORD-LGW
12:00a - 12:00a
1 stop
10h 20m
ORD-LGW
$410
eDreams
WOW air WOW air
LGW - ORD
12:00a - 12:00a
nonstop
8h 50m
LGW - ORD
View Deal

Earliest

Airline
Departure & Arrival Time
Stops
Duration
Aer Lingus Aer Lingus
ORD-LCY
12:00a - 12:00a
1 stop
12h 30m
ORD-LCY
$603
Expedia
Aer Lingus Aer Lingus
LCY - ORD
12:00a - 12:00a
1 stop
13h 00m
LCY - ORD
View Deal
*
Prices are per person and are for e–tickets and include all taxes & fees in USD.

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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.