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
39.2 - 62.6 °F
LON
Precipitation
1.6 - 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 (CHI) to London (LON)

One-way from

$231

One-way flight from Chicago (CHI) to London (LON)

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
How far in advance should I book a flight from Chicago to London?

Find a great deal and save up to 39% by booking at least 61 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Chicago to London within the next two weeks, with the cheapest ticket starting at $704.

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

April can be a great time to fly to London from Chicago with a flight ticket averaging about $590. Cheapflights users have found deals in the month of April for as cheap as $386. The most expensive prices can be found in the month of December.

What is the cheapest day to fly round-trip from Chicago to London?

It’s generally more expensive to depart on a Monday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

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

A simple way to save on the total cost of your ticket is to fly from Chicago to London at noon. If you’re flexible enough to do this you can expect to save up to 8% on your trip compared to booking a flight in the evening.

Cheap flights from Chicago to London in October, November 2021

The best prices found for CHI to LON flights for October, November
10 Nov - 24 Nov
$348pp
ORD
Chicago O'Hare Intl
Multiple Airlines
   
2 STOPS
LTN
London Luton
LTN
London Luton
Multiple Airlines
   
2 STOPS
ORD
Chicago O'Hare Intl
3 Nov - 12 Nov
$354pp
ORD
Chicago O'Hare Intl
Multiple Airlines
   
2 STOPS
LTN
London Luton
LTN
London Luton
Multiple Airlines
   
2 STOPS
ORD
Chicago O'Hare Intl
17 Nov - 21 Nov
$365pp
ORD
Chicago O'Hare Intl
Multiple Airlines
   
2 STOPS
LTN
London Luton
LTN
London Luton
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
10 Nov - 24 Nov
$348pp
ORD
Chicago O'Hare Intl
Multiple Airlines
   
2 STOPS
LTN
London Luton
LTN
London Luton
Multiple Airlines
   
2 STOPS
ORD
Chicago O'Hare Intl
3 Nov - 12 Nov
$354pp
ORD
Chicago O'Hare Intl
Multiple Airlines
   
2 STOPS
LTN
London Luton
LTN
London Luton
Multiple Airlines
   
2 STOPS
ORD
Chicago O'Hare Intl
2 Dec - 4 Dec
$356pp
ORD
Chicago O'Hare Intl
SAS
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
SAS
   
2 STOPS
ORD
Chicago O'Hare Intl

Non-stop flights to London from Chicago

Save time with Chicago to London direct flight deals
1 Apr - 11 Apr
$538pp
ORD
Chicago O'Hare Intl
Multiple Airlines
Non-Stop
LHR
London Heathrow
LHR
London Heathrow
Finnair
Non-Stop
ORD
Chicago O'Hare Intl
10 Nov - 24 Nov
$556pp
ORD
Chicago O'Hare Intl
Iberia
Non-Stop
LHR
London Heathrow
LHR
London Heathrow
Iberia
Non-Stop
ORD
Chicago O'Hare Intl
1 Nov - 13 Nov
$560pp
ORD
Chicago O'Hare Intl
Iberia
Non-Stop
LHR
London Heathrow
LHR
London Heathrow
Iberia
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
25 Oct - 3 Nov
$458pp
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
25 Oct - 31 Oct
$460pp
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
25 Oct - 30 Oct
$463pp
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

One-way flights to London from Chicago

The cheapest one-way flights from Chicago to London
12:55 pm - 2:55 am
Lufthansa
Nonstop
8h 00m
ORD - LHR
Lufthansa
$231
StudentUniverse
2:30 pm - 1:05 pm
SWISS
1 Stop
16h 35m
ORD - LCY
SWISS
$242
StudentUniverse
1:15 am - 6:20 pm
Multiple Airlines
3 Stops
35h 05m
ORD - LTN
Multiple Airlines
$270
Gotogate

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

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 $400 on Cheapflights?

Yes, there are multiple flights from Chicago to London for under $400. The cheapest flight booked recently is on SAS for just $314, but on average you can expect to pay $351.

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 $572.

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.

What is the cheapest airline to fly from Chicago to London round-trip?

SAS, at $314, was found to be the cheapest airline from Chicago to London.. SAS is 46% cheaper than the average price of flights available within the next 90 days to this destination.

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

$231 is the cheapest one-way deal found within the past few days, from Lufthansa. You may also be able to find cheap deals on SWISS and TAP AIR PORTUGAL, with prices starting from $242 and $245, respectively.

What are the cheapest flights from Chicago to London?

Looking at all options, your cheapest flight can be booked for $223. While the most popular route (Chicago O'Hare Intl - London Heathrow) can be booked for $336 on average our data indicates $1,628 when flying from Chicago to London

What are the most reliable airlines from Chicago to London?

Before booking your flight to London from Chicago, check out the most reliable airlines to get you to your destination on time: Malaysia Airlines (80%), Qatar Airways (74%), EL AL( 74%).

What are the most popular routes from Chicago to London?

The most popular route from Chicago to London is Chicago O'Hare Intl - London Heathrow. You may also consider Chicago O'Hare Intl - London Gatwick or Chicago O'Hare Intl - London City.

What are the most popular airlines that fly from Chicago to London?

When booking a flight from Chicago to London, you may want to consider flying on Major Airline, American Airlines or Air Canada as they are the most popular for this route.

COVID Restrictions

View COVID Travel Restrictions for London, England

Do I need a COVID test to fly to London from Chicago?

Information is based on travel restrictions from Chicago to London

Most visitors from Chicago need to provide a negative COVID-19 test result and/or quarantine to enter London.

COVID-19 testing requirements
Visitors from Chicago must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to London.

Quarantine requirements
Visitors from Chicago are not required to quarantine after entering London.

Documents
Mandatory passenger locator form - Submit the form any time in the 48 hours before arriving in the UK. Show the form when checking in your plane, train or ferry to the UK.

Managed quarantine package for Scotland - All travelers arriving directly to Scotland are required to book their Managed Quarantine Package prior to travel.

COVID-19 testing package - All travelers must book and pay for a COVID-19 Testing Package prior to travel to England and Scotland.


Do I need a test to fly back to Chicago from London?

Returning to Chicago from London

COVID-19 testing requirements
Visitors from London must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Chicago.

Quarantine requirements
Visitors from London are not required to quarantine after entering Chicago.

Hide COVID Travel Restrictions for London, England

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 = £0.73
Average temperature for October in London
60.8 °F
Avg rainfall for October in London
2.8 ″

Airports servicing Chicago

Midway (MDW)
Rockford (RFD)

Airports servicing London

Gatwick (LGW)
Stansted (STN)
London City (LCY)
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
SAS
$288 $632 No cancel fee 77%
Norwegian Air UK
$330 $566 No cancel fee N/A
Norwegian
$334 $477 No cancel fee 74%
Finnair
$355 $555 No cancel fee 76%
Air Canada
$362 $730 No cancel fee 67%
Lufthansa
$364 $552 No cancel fee 76%
British Airways
$368 $555 No cancel fee 70%
Brussels Airlines
$371 $600 No cancel fee N/A
Iberia
$377 $497 No cancel fee 77%
American Airlines
$379 $665 No cancel fee 71%

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 75% of CHI to LON departures
Evening 6 PM to midnight 24% of CHI to LON departures
Early morning Midnight to 6 AM 1% 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
23 daily flights
Monday
23 daily flights
Tuesday
23 daily flights
Wednesday
23 daily flights
Thursday
22 daily flights
Friday
23 daily flights
Saturday
23 daily flights
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