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

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The best prices from Chicago to London are usually found in April or September, booked 60 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)

All the information you need to plan the best CHI to LON flight in 2021: compare Chicago to London flight prices with the expected peak season, weather and rainfall in London.
CHI - LON
Price
$467 - $771
LON
Temperature
48.2 - 73.4 °F
LON
Rainfall
1.4 - 2.8 inches

Popular in

December

High demand for flights, 23% potential price rise

Cheapest in

April

Best time to find cheap flights, 21% potential price drop

Round-trip from

$467

From Chicago to London

One-way from

$345

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 61 days in advance, which can save you up to 44% on flights from Chicago to London compared to booking the week you need them. Waiting 61 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 $910. For sooner than that we have options available in the next 3 days from $1,146.

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

The best pricing can be found in the month of October. Prices to London from Chicago average $714. You can even find prices in October for less than $714, as users have found deals to London from as low as $445. The month of July 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 31%.

When is the cheapest time to fly from Chicago to London (CHI - LON)?

When flying from Chicago to London, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 8% versus a flight in the evening.

Cheap flights from Chicago to London in June, July 2021

The best prices found for CHI to LON flights for June, July
8 Jul - 13 Jul
$439pp
ORD
Chicago O'Hare Intl
Multiple Airlines
   
2 STOPS
STN
London Stansted
STN
London Stansted
Multiple Airlines
   
2 STOPS
ORD
Chicago O'Hare Intl
6 Jul - 13 Jul
$441pp
ORD
Chicago O'Hare Intl
Multiple Airlines
   
2 STOPS
STN
London Stansted
STN
London Stansted
Multiple Airlines
   
2 STOPS
ORD
Chicago O'Hare Intl
6 Jul - 13 Jul
$445pp
ORD
Chicago O'Hare Intl
Multiple Airlines
   
2 STOPS
STN
London Stansted
STN
London Stansted
Multiple Airlines
   
2 STOPS
ORD
Chicago O'Hare Intl

Chicago to London 2021 flight deals

Cheap flights to London from Chicago found for this year
8 Jul - 13 Jul
$439pp
ORD
Chicago O'Hare Intl
Multiple Airlines
   
2 STOPS
STN
London Stansted
STN
London Stansted
Multiple Airlines
   
2 STOPS
ORD
Chicago O'Hare Intl
6 Jul - 13 Jul
$441pp
ORD
Chicago O'Hare Intl
Multiple Airlines
   
2 STOPS
STN
London Stansted
STN
London Stansted
Multiple Airlines
   
2 STOPS
ORD
Chicago O'Hare Intl
13 Dec - 5 Jan
$441pp
ORD
Chicago O'Hare Intl
Icelandair
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
Icelandair
 
1 STOP
ORD
Chicago O'Hare Intl

Non-stop flights to London from Chicago

Save time with Chicago to London direct flight deals
4 Oct - 14 Oct
$633pp
ORD
Chicago O'Hare Intl
British Airways
Non-Stop
LHR
London Heathrow
LHR
London Heathrow
British Airways
Non-Stop
ORD
Chicago O'Hare Intl
20 Oct - 27 Oct
$647pp
ORD
Chicago O'Hare Intl
British Airways
Non-Stop
LHR
London Heathrow
LHR
London Heathrow
British Airways
Non-Stop
ORD
Chicago O'Hare Intl
18 Aug - 31 Aug
$651pp
ORD
Chicago O'Hare Intl
Finnair
Non-Stop
LHR
London Heathrow
LHR
London Heathrow
Finnair
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
18 Jun - 30 Jun
$468pp
ORD
Chicago O'Hare Intl
Multiple Airlines
   
2 STOPS
STN
London Stansted
STN
London Stansted
Multiple Airlines
   
2 STOPS
ORD
Chicago O'Hare Intl
18 Jun - 28 Jun
$469pp
ORD
Chicago O'Hare Intl
Multiple Airlines
   
2 STOPS
STN
London Stansted
STN
London Stansted
Multiple Airlines
   
2 STOPS
ORD
Chicago O'Hare Intl
20 Jun - 25 Jun
$486pp
ORD
Chicago O'Hare Intl
Multiple Airlines
   
2 STOPS
STN
London Stansted
STN
London Stansted
Multiple Airlines
   
2 STOPS
ORD
Chicago O'Hare Intl

One-way flights to London from Chicago

The cheapest one-way flights from Chicago to London
12:00 pm - 6:20 am
TAP AIR PORTUGAL
1 Stop
12h 20m
ORD - LHR
TAP AIR PORTUGAL
$345
Travel2Be
10:55 am - 4:50 am
TAP AIR PORTUGAL
1 Stop
11h 55m
ORD - LGW
TAP AIR PORTUGAL
$346
Travel2Be
12:00 pm - 8:45 am
TAP AIR PORTUGAL
1 Stop
14h 45m
ORD - LHR
TAP AIR PORTUGAL
$347
Travel2Be

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Chicago</span> to <span class="emphasized">London</span> 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.

Which airlines flying from Chicago to London have flexible cancellations due to COVID-19?

Due to the rapidly changing circumstances due to COVID-19, airlines like British Airways, United Airlines, and American Airlines flying from Chicago to London have implemented new flexible cancellation policies.

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 Multiple Airlines for just $439, but on average you can expect to pay $461.

Are there nonstop flights from Chicago to London for under $700 on Cheapflights?

Cheapflights has at least 20 direct flights from Chicago to London under $700. A good price for a nonstop flight from Chicago to London is less than $686.

Are there last-minute flights available from Chicago to London for under $500?

There are currently 20+ open flights from Chicago to London within the next 7 days for less than $500.

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.

How long is the flight from Chicago to London?

Airlines like Delta and Icelandair fly from Chicago to London in about 10h 10m. The time it takes to get you to your destination can typically vary by up to 05m. Both multi-stop and nonstop flights can be found to your destination and back.

What are the cheapest airlines flying from Chicago to London round-trip?

Icelandair, at $463, was found to be the cheapest airline from Chicago to London. An alternate airline flying to your destination would be TAP AIR PORTUGAL. You may be able to fly from Chicago to London for 21% less than the average price by searching for these airlines.

What are the cheapest airlines to fly from Chicago to London one-way?

The cheapest airline for a one-way flight from Chicago to London is TAP AIR PORTUGAL ($345).

Destination information for London

Things to know before you go - useful duration and weather info for your trip from Chicago to London.
Today's exchange rate
$1 = £0.71
Average temperature for June in London
69.8 °F
Avg rainfall for June in London
1.7 ″

Airports servicing Chicago

Chicago Midway (MDW)
Rockford (RFD)

Airports servicing London

Gatwick (LGW)
City (LCY)
Stansted (STN)
Luton (LTN)
Southend (SEN)

Top 10 airlines flying from Chicago to London

The chart below displays the airlines Cheapflights users traveling from Chicago to London choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
Norwegian
$334 $477 No cancel fee 74%
Norwegian Air UK
$330 $566 No cancel fee N/A
Air France
$409 $576 No cancel fee 77%
Delta
$395 $599 No cancel fee N/A
Brussels Airlines
$371 $600 No cancel fee N/A
SAS
$288 $632 No cancel fee 77%
KLM
$386 $632 No cancel fee 75%
TAP AIR PORTUGAL
$452 $641 No cancel fee N/A
Austrian Airlines
$399 $699 No cancel fee 78%
Air Canada
$362 $730 No cancel fee 67%

Hourly flight availability from Chicago to London

See what time of day planes typically take off from Chicago towards London.
Afternoon Noon to 6 PM 69% of CHI to LON departures
Evening 6 PM to midnight 31% of CHI to LON departures
Early morning Midnight to 6 AM 0% of CHI to LON departures
Morning 6 AM to noon 0% of CHI to LON departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from Chicago to London
See how many times per day planes take to the skies headed from Chicago to London.
Sunday
18 daily flights
Monday
18 daily flights
Tuesday
18 daily flights
Wednesday
18 daily flights
Thursday
17 daily flights
Friday
18 daily flights
Saturday
18 daily flights
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