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

CHI — LON
Feb 7 — Feb 141

The best prices from Chicago to London are usually found in January or February, booked 59 days in advance, depart on a Wednesday or Friday and return on a Monday

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 2023: compare Chicago to London flight prices with the expected peak season, weather and rainfall in London.

CHI - LON

Price

$575 - $994

LON

Temperature

39.2 - 62.6 °F

LON

Rainfall

1.6 - 2.8 inches

Popular inJulyHigh demand for flights, 28% potential price rise
Cheapest inJanuaryBest time to find cheap flights, 20% potential price drop
Round-trip from$575From Chicago (CHI) to London (LON)
One-way from$204One-way flight from Chicago (CHI) to London (LON)

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

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

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

Find a great deal and save up to 12% by booking at least 57 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 $819.

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

January can be a great time to fly to London from Chicago with a flight ticket averaging about $715. Cheapflights users have found deals in the month of January for as cheap as $512. The most expensive prices can be found in the month of July.

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 in the evening. If you’re flexible enough to do this you can expect to save up to 14% on your trip compared to booking a flight in the morning.

Cheap flights from Chicago to London in February, March 2023

The best prices found for CHI to LON flights for February, March
Feb 3 - Feb 5
ORD

Chicago O'Hare Intl

LHR

London Heathrow

1 stop

14h 55m
LHR

London Heathrow

ORD

Chicago O'Hare Intl

1 stop

23h 35m
$408

Scandinavian Airlines

Pick Dates

Deal found 1/30

Mar 26 - Apr 3
ORD

Chicago O'Hare Intl

LHR

London Heathrow

1 stop

14h 55m
LHR

London Heathrow

ORD

Chicago O'Hare Intl

1 stop

28h 25m
$411

Scandinavian Airlines

Pick Dates

Deal found 2/1

Mar 31 - Apr 3
ORD

Chicago O'Hare Intl

LHR

London Heathrow

1 stop

14h 55m
LHR

London Heathrow

ORD

Chicago O'Hare Intl

1 stop

28h 25m
$412

Scandinavian Airlines

Pick Dates

Deal found 1/30

Chicago to London 2023 flight deals

Cheap flights to London from Chicago found for this year
Apr 10 - Apr 12
ORD

Chicago O'Hare Intl

LHR

London Heathrow

1 stop

14h 55m
LHR

London Heathrow

ORD

Chicago O'Hare Intl

1 stop

13h 50m
$339

Scandinavian Airlines

Pick Dates

Deal found 1/31

Apr 10 - Apr 12
ORD

Chicago O'Hare Intl

LHR

London Heathrow

1 stop

14h 55m
LHR

London Heathrow

ORD

Chicago O'Hare Intl

1 stop

13h 50m
$342

Scandinavian Airlines

Pick Dates

Deal found 2/1

Feb 3 - Feb 5
ORD

Chicago O'Hare Intl

LHR

London Heathrow

1 stop

14h 55m
LHR

London Heathrow

ORD

Chicago O'Hare Intl

1 stop

23h 35m
$408

Scandinavian Airlines

Pick Dates

Deal found 1/30

Cheap Air France flights from Chicago to London

Mar 3 - Mar 5
ORD

Chicago O'Hare Intl

LHR

London Heathrow

1 stop

10h 30m
LHR

London Heathrow

ORD

Chicago O'Hare Intl

1 stop

14h 55m
$481

Air France

Pick Dates

Deal found 1/30

Feb 7 - Feb 16
ORD

Chicago O'Hare Intl

LHR

London Heathrow

1 stop

11h 00m
LHR

London Heathrow

ORD

Chicago O'Hare Intl

1 stop

14h 55m
$554

Air France

Pick Dates

Deal found 2/1

Apr 20 - Apr 28
MDW

Chicago Midway

LHR

London Heathrow

1 stop

11h 30m
LHR

London Heathrow

MDW

Chicago Midway

1 stop

14h 04m
$582

Air France

Pick Dates

Deal found 2/2

  • Air France is one of the most popular airlines used for those traveling from Chicago to London. Flights on this route from Air France typically cost $890.97 RT, a price that is 54% cheaper than the average Chicago to London flight. The cheapest flight found was $576 RT. When traveling from Chicago to London on Air France, the most popular airport to depart from is Chicago O'Hare Intl Airport and the most popular airport to arrive at is London Heathrow Airport. When flying from Chicago to London, Air France flights are 5% more popular than any other airline flying that same route.

Cheap TAP AIR PORTUGAL flights from Chicago to London

Apr 19 - May 3
ORD

Chicago O'Hare Intl

LHR

London Heathrow

1 stop

13h 40m
LHR

London Heathrow

ORD

Chicago O'Hare Intl

1 stop

18h 20m
$444

TAP AIR PORTUGAL

Pick Dates

Deal found 2/2

Feb 27 - Mar 6
ORD

Chicago O'Hare Intl

LHR

London Heathrow

1 stop

18h 25m
LHR

London Heathrow

ORD

Chicago O'Hare Intl

1 stop

20h 30m
$448

TAP AIR PORTUGAL

Pick Dates

Deal found 1/30

Apr 19 - Apr 26
ORD

Chicago O'Hare Intl

LHR

London Heathrow

1 stop

13h 40m
LHR

London Heathrow

ORD

Chicago O'Hare Intl

1 stop

18h 20m
$452

TAP AIR PORTUGAL

Pick Dates

Deal found 2/1

  • One of the most popular airlines traveling from Chicago to London is TAP AIR PORTUGAL. Flights from TAP AIR PORTUGAL traveling this route typically cost $805.17 RT. This price is typically 55% more expensive than other airlines that offer Chicago to London flights. When booking this route, the cheapest RT price found was $546. The most popular departure airport in Chicago when flying to London is Chicago O'Hare Intl Airport. The most popular airport to fly into when visiting London is London Heathrow Airport. When flying from Chicago to London, TAP AIR PORTUGAL flights are 4% more popular than any other airline flying that same route.

Non-stop flights to London from Chicago

Save time with Chicago to London direct flight deals
Mar 29 - Apr 16
ORD

Chicago O'Hare Intl

LHR

London Heathrow

Nonstop

7h 50m
LHR

London Heathrow

ORD

Chicago O'Hare Intl

Nonstop

8h 30m
$535

Finnair

Pick Dates

Deal found 2/1

Mar 20 - Mar 27
ORD

Chicago O'Hare Intl

LHR

London Heathrow

Nonstop

7h 40m
LHR

London Heathrow

ORD

Chicago O'Hare Intl

Nonstop

8h 40m
$537

British Airways

Pick Dates

Deal found 1/31

Mar 29 - Apr 16
ORD

Chicago O'Hare Intl

LHR

London Heathrow

Nonstop

7h 45m
LHR

London Heathrow

ORD

Chicago O'Hare Intl

Nonstop

8h 40m
$539

British Airways

Pick Dates

Deal found 2/1

Last minute flights from Chicago to London

Late deals on return flights to London from Chicago, departing today and this week
Feb 10 - Feb 17
ORD

Chicago O'Hare Intl

LHR

London Heathrow

1 stop

14h 55m
LHR

London Heathrow

ORD

Chicago O'Hare Intl

1 stop

23h 35m
$408

Scandinavian Airlines

Pick Dates

Deal found 1/31

Feb 8 - Feb 15
ORD

Chicago O'Hare Intl

LHR

London Heathrow

1 stop

11h 55m
LHR

London Heathrow

ORD

Chicago O'Hare Intl

1 stop

23h 35m
$414

Scandinavian Airlines

Pick Dates

Deal found 1/31

Feb 8 - Sep 8
ORD

Chicago O'Hare Intl

LHR

London Heathrow

1 stop

11h 55m
LHR

London Heathrow

ORD

Chicago O'Hare Intl

1 stop

28h 25m
$417

Scandinavian Airlines

Pick Dates

Deal found 2/1

One-way flights to London from Chicago

The cheapest one-way flights from Chicago to London
Feb 20
ORD

Chicago O'Hare Intl

LHR

London Heathrow

1 stop

13h 15m
$184

TAP AIR PORTUGAL

Pick Dates

Deal found 1/30

Feb 20
ORD

Chicago O'Hare Intl

LGW

London Gatwick

1 stop

11h 30m
$184

TAP AIR PORTUGAL

Pick Dates

Deal found 1/31

Feb 20
ORD

Chicago O'Hare Intl

LHR

London Heathrow

1 stop

17h 20m
$185

TAP AIR PORTUGAL

Pick Dates

Deal found 1/31

Reviews of Airlines Servicing London

Delta
7.9
Good
2,050 reviews

Crew

8.5

Comfort

7.9

Boarding

8.0

Entertainment

7.8

Overall

7.9

Food

7.2

Reviews

1 / 10

Good flight. Only a few minutes late on takeoff. No problems on the flight. Arrived in Atlanta close to on time.

Delta
7.9
Good
2,050 reviews
Delta
7.9
Good
2,050 reviews

Crew

8.5

Comfort

7.9

Boarding

8.0

Entertainment

7.8

Overall

7.9

Food

7.2

Reviews

1 / 10

Good flight. Only a few minutes late on takeoff. No problems on the flight. Arrived in Atlanta close to on time.

Air France
7.7
Good
117 reviews
Delta
7.9
Good
2,050 reviews

Crew

8.5

Comfort

7.9

Boarding

8.0

Entertainment

7.8

Overall

7.9

Food

7.2

Reviews

1 / 10

Good flight. Only a few minutes late on takeoff. No problems on the flight. Arrived in Atlanta close to on time.

SWISS
7.7
Good
317 reviews
Delta
7.9
Good
2,050 reviews

Crew

8.5

Comfort

7.9

Boarding

8.0

Entertainment

7.8

Overall

7.9

Food

7.2

Reviews

1 / 10

Good flight. Only a few minutes late on takeoff. No problems on the flight. Arrived in Atlanta close to on time.

KLM
7.5
Good
118 reviews
Delta
7.9
Good
2,050 reviews

Crew

8.5

Comfort

7.9

Boarding

8.0

Entertainment

7.8

Overall

7.9

Food

7.2

Reviews

1 / 10

Good flight. Only a few minutes late on takeoff. No problems on the flight. Arrived in Atlanta close to on time.

Iberia
7.1
Good
491 reviews
Delta
7.9
Good
2,050 reviews

Crew

8.5

Comfort

7.9

Boarding

8.0

Entertainment

7.8

Overall

7.9

Food

7.2

Reviews

1 / 10

Good flight. Only a few minutes late on takeoff. No problems on the flight. Arrived in Atlanta close to on time.

Related info for your journey

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

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, American Airlines, and Iberia 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 Scandinavian Airlines for just $339, but on average you can expect to pay $432.

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 $557.

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

Scandinavian Airlines, at $339, was found to be the cheapest airline from Chicago to London.Alternate airlines to your destination round-trip include TAP AIR PORTUGAL and Iberia. Scandinavian Airlines is 52% 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?

$184 is the cheapest one-way deal found within the past few days, from TAP AIR PORTUGAL. You may also be able to find cheap deals on Undisclosed Carrier and SWISS, with prices starting from $203 and $228, respectively.

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 Undisclosed Carrier, American Airlines or Air Canada as they are the most popular for this route.

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: Air Canada (77%), Austrian Airlines (77%), United Airlines( 77%).

What are the cheapest flights from Chicago to London?

Looking at all options, your cheapest flight can be booked for $255. While the most popular route (Chicago O'Hare Intl - London Heathrow) can be booked for $408 on average our data indicates $2,234 when flying from Chicago to London.

Alternative routes for Chicago to London

See prices for flight routes from nearby airports that may be better suited for you.

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.
AirlineCheapestAverageFlexibilityOn-timeCOVID-19 safety
Juneyao AirlinesCheapest$14Average$20FlexibilityNo cancel feeOn-time66%COVID-19 safety
Search Juneyao Airlines flights
Norwegian Air UKCheapest$330Average$566FlexibilityNo cancel feeOn-timeN/ACOVID-19 safety
Search Norwegian Air UK flights
NorwegianCheapest$334Average$477FlexibilityNo cancel feeOn-time74%COVID-19 safety
Search Norwegian flights
IcelandairCheapest$366Average$628FlexibilityNo cancel feeOn-time76%COVID-19 safety
Search Icelandair flights
Scandinavian AirlinesCheapest$372Average$580FlexibilityNo cancel feeOn-time77%COVID-19 safety
Search Scandinavian Airlines flights
TAP AIR PORTUGALCheapest$397Average$536FlexibilityNo cancel feeOn-timeN/ACOVID-19 safety
Search TAP AIR PORTUGAL flights
DeltaCheapest$398Average$687FlexibilityNo cancel feeOn-timeN/ACOVID-19 safety
Search Delta flights
KLMCheapest$427Average$658FlexibilityNo cancel feeOn-time75%COVID-19 safety
Search KLM flights
Aer LingusCheapest$470Average$619FlexibilityNo cancel feeOn-timeN/ACOVID-19 safety
Search Aer Lingus flights
Air CanadaCheapest$483Average$1,196FlexibilityNo cancel feeOn-time67%COVID-19 safety
Search Air Canada flights

Hourly flight availability from Chicago to London

See what time of day planes typically take off from Chicago to London
1%of flight departuresEarly morningMidnight to 6 am
0%of flight departuresMorning6 am to noon
75%of flight departuresAfternoonNoon to 6 pm
24%of flight departuresEvening6 pm to midnight
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
Sunday29daily flights
Monday32daily flights
Tuesday26daily flights
Wednesday26daily flights
Thursday32daily flights
Friday28daily flights
Saturday29daily flights
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