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Cheap flights from Chicago (CHI) to London (LON)

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The best prices from Chicago to London are usually found in February or January, booked 47 days in advance, depart on a Tuesday or Monday and return on a Friday

How to find the cheapest flight from
Chicago (CHI) to London (LON)

CHI - LON
Price
$384 - $757
LON
Temperature
48.2 - 73.4 °F
LON
Rainfall
1.4 - 2.8 inches
Popular in December High demand for flights, 30% potential price rise
Cheapest in February Best time to find cheap flights, 27% potential price drop
Round-trip from $384 From Chicago to London
One-way from $242 One-way flight from Chicago to London
Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from Chicago to London?

Flying to your destination on a Friday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to London. Check prices with Cheapflights to find a great deal for your trip.

How far in advance should I book a flight from Chicago to London?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 51 days in advance, which can save you up to 38% on flights from Chicago to London compared to booking the week you need them. Waiting 51 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $813. For sooner than that we have options available in the next 3 days from $886.

What is the cheapest month to fly from Chicago to London?

The best pricing can be found in the month of February. Prices to London from Chicago average $634. You can even find prices in February for less than $634, as users have found deals to London from as low as $394. The month of June appears to be one of the more expensive times to travel to London from Chicago. Flying in the targeted month can save you up to 66%.

Cheap flights from Chicago to London in July, August 2020

The best prices found for CHI to LON flights for July, August
20 Jul - 4 Mar
$569pp
ORD
Chicago O'Hare Intl
Multiple Airlines
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
SWISS
 
1 STOP
ORD
Chicago O'Hare Intl
21 Jul - 5 Mar
$573pp
ORD
Chicago O'Hare Intl
Lufthansa
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
Lufthansa
 
1 STOP
ORD
Chicago O'Hare Intl
29 Jul - 31 Aug
$576pp
ORD
Chicago O'Hare Intl
Multiple Airlines
   
2 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
   
2 STOPS
ORD
Chicago O'Hare Intl

Chicago to London 2020 flight deals

Cheap flights to London from Chicago found for this year
24 Oct - 11 Nov
$420pp
ORD
Chicago O'Hare Intl
TAP AIR PORTUGAL
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
TAP AIR PORTUGAL
 
1 STOP
ORD
Chicago O'Hare Intl
12 Nov - 2 Dec
$422pp
ORD
Chicago O'Hare Intl
TAP AIR PORTUGAL
 
1 STOP
LGW
London Gatwick
LGW
London Gatwick
TAP AIR PORTUGAL
 
1 STOP
ORD
Chicago O'Hare Intl
12 Nov - 2 Dec
$423pp
ORD
Chicago O'Hare Intl
TAP AIR PORTUGAL
 
1 STOP
LGW
London Gatwick
LGW
London Gatwick
TAP AIR PORTUGAL
 
1 STOP
ORD
Chicago O'Hare Intl

Non-stop flights to London from Chicago

Save time with Chicago to London direct flight deals
4 Nov - 11 Nov
$578pp
ORD
Chicago O'Hare Intl
Multiple Airlines
Non-Stop
LHR
London Heathrow
LHR
London Heathrow
Austrian Airlines
Non-Stop
ORD
Chicago O'Hare Intl
25 Sep - 4 Oct
$586pp
ORD
Chicago O'Hare Intl
Norwegian Air UK
Non-Stop
LGW
London Gatwick
LGW
London Gatwick
Norwegian Air UK
Non-Stop
ORD
Chicago O'Hare Intl
21 Jul - 5 Mar
$591pp
ORD
Chicago O'Hare Intl
Lufthansa
Non-Stop
LHR
London Heathrow
LHR
London Heathrow
Lufthansa
Non-Stop
ORD
Chicago O'Hare Intl

Last minute flights from Chicago to London

Late deals on round-trip flights to London from Chicago, departing today and this week
28 Jun - 6 Jul
$716pp
ORD
Chicago O'Hare Intl
Multiple Airlines
Non-Stop
LHR
London Heathrow
LHR
London Heathrow
SWISS
 
1 STOP
ORD
Chicago O'Hare Intl
28 Jun - 6 Jul
$724pp
ORD
Chicago O'Hare Intl
Lufthansa
Non-Stop
LHR
London Heathrow
LHR
London Heathrow
Lufthansa
 
1 STOP
ORD
Chicago O'Hare Intl
28 Jun - 14 Jul
$733pp
ORD
Chicago O'Hare Intl
Lufthansa
Non-Stop
LHR
London Heathrow
LHR
London Heathrow
Lufthansa
 
1 STOP
ORD
Chicago O'Hare Intl

One-way flights to London from Chicago

The cheapest one-way flights from Chicago to London
2:10 pm - 6:55 pm
TAP AIR PORTUGAL
1 Stop
22h 45m
ORD - LHR
TAP AIR PORTUGAL
$242
Gotogate
1:38 pm - 11:35 am
Multiple Airlines
3 Stops
39h 57m
ORD - LTN
Multiple Airlines
$277
Kiwi.com
3:30 pm - 7:45 am
Icelandair
1 Stop
10h 15m
ORD - LHR
Icelandair
$278
StudentUniverse

Related info for your journey

Useful info, stats and facts about Chicago to London flights.

Flight FAQs

From Chicago to London

Are flight prices decreasing from Chicago to London due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Chicago and London for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

Can I find flights from Chicago to London for under $500 on Cheapflights?

Yes, there are multiple flights from Chicago to London for under $500. The cheapest flight booked recently is on TAP AIR PORTUGAL for just $420, but on average you can expect to pay $431.

Are there nonstop flights from Chicago to London for under $600 on Cheapflights?

Cheapflights has at least 20 direct flights from Chicago to London under $600. A good price for a nonstop flight from Chicago to London is less than $604.

Are there last-minute flights available from Chicago to London for under $800?

There are currently 20+ open flights from Chicago to London within the next 7 days for less than $800.

How popular is this flight route?

The Chicago to London flight path was viewed by 34 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

What is the cheapest airline for this route?

While browsing flights check up on current rates for American Airlines Inc.. American Airlines Inc. offers the cheapest flight to Chicago to London. Flight availability can sometimes range however expect there to be 87 flights on average per day.

Is Chicago weather warmer or cooler than London?

With an average temperature of 84 °F, peak weather can be found in July. As a traveler, expect to see changes in flight prices during that period. The temperatures in London are colder than in Chicago.

Destination information for London

Things to know before you go. Useful info for your trip from Chicago to London
Today's exchange rate
$1 = £0.80
Average temperature for July in London
73.4 °F
Avg rainfall for July in London
1.6 ″

Airports servicing Chicago

Chicago Midway (MDW)
Rockford (RFD)

Airports servicing London

Heathrow (LHR)
Luton (LTN)
Stansted (STN)
City (LCY)
Southend (SEN)

Hourly flight availability from Chicago to London

Afternoon Noon to 6 PM 71% of CHI to LON departures
Evening 6 PM to midnight 26% of CHI to LON departures
Morning 6 AM to noon 2% of CHI to LON departures
Early morning Midnight to 6 AM 1% of CHI to LON departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from Chicago to London
Sunday
17 daily flights
Monday
17 daily flights
Tuesday
17 daily flights
Wednesday
17 daily flights
Thursday
18 daily flights
Friday
17 daily flights
Saturday
17 daily flights