What days are nonstop flights available from Illinois to London?

Nonstop flights can be found on the following days: Wednesday, Thursday.

How many flights depart from Illinois to London on average per day?

On average, you can expect to see 1 flight from Illinois to London a day. Afternoon (Noon - 6pm) - 100% of flight departures

How long is the flight from Illinois to London?

For as low as $347, Scandinavian Airlines can have you in London from Illinois in 10h 15m. The distance between Illinois and London is about 3964 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

For one-way options, check prices for TAP AIR PORTUGAL. According to our data, you can fly for as low as $214. Users have also found prices from $263 and $276 on Icelandair and SWISS, respectively.

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

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

What are the most popular routes from Illinois to London?

While some choose either Chicago O'Hare Intl - London Gatwick or Chicago O'Hare Intl - London City, Chicago O'Hare Intl - London Heathrow is the most popular route from Illinois to London.

What are the cheapest flights from Illinois to London?

On average you can expect to pay $3,036 for a flight from Illinois to London. The cheapest flight overall is $564 while the most popular route, (Chicago O'Hare Intl - London Heathrow) is currently priced at $347.

What are the most reliable airlines from Illinois to London?

No one likes to see their flight delayed. When booking a flight from Illinois to London consider choosing Air Canada (78%), Austrian Airlines (78%) or United Airlines (78%) as they are the most reliable in getting you off to your destination on time.

Can I find flights from Illinois to London for under $400 on Cheapflights?

Yes, there are multiple flights from Illinois to London for under $400. The cheapest flight booked recently is on Scandinavian Airlines for just $347, but on average you can expect to pay $513.

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

Cheapflights has at least 20 direct flights from Illinois to London under $600. A good price for a nonstop flight from Illinois to London is less than $680.

Are there last-minute flights available from Illinois to London for under $1,000?

There are currently 20+ open flights from Illinois to London within the next 7 days for less than $1,000.

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

Some of the carriers operating flights from Illinois to London that may be offering flexible cancellation policies are American Airlines, British Airways, and Finnair. Our site will let you filter for all airlines offering greater flexibility due to COVID-19.

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

Find a great deal and save up to 16% by booking at least 59 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 Illinois to London within the next two weeks, with the cheapest ticket starting at $818.

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

Our data shows that February tends to be the cheapest month to fly to London from Illinois. Users have commonly found prices around $711 for the month, but tickets can be as low as $491. Due to multiple factors, prepare for potentially higher prices in July.

When is the cheapest time to fly from Illinois to London (IL - LON)?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to London as you normally would.

Cheap Flights from Illinois (IL) to London, England from $214 - Find Tickets & Airfare Deals at Cheapflights.com

Cheap flights from Illinois to London in June, July 2023

Check out some of the best flight deals from Illinois to London in 2023. More deals are always being added, so be sure to check back regularly.

Jul 25 - Aug 30

ORD

Chicago O'Hare Intl

LGW

London Gatwick

1 stop

16h 05m

LGW

London Gatwick

ORD

Chicago O'Hare Intl

1 stop

14h 41m

$626

Multiple Airlines

Deal found 6/5

Jul 22 - Aug 30

ORD

Chicago O'Hare Intl

LGW

London Gatwick

1 stop

34h 33m

LGW

London Gatwick

ORD

Chicago O'Hare Intl

1 stop

14h 41m

$644

Multiple Airlines

Deal found 6/5

Jul 30 - Aug 28

ORD

Chicago O'Hare Intl

LGW

London Gatwick

1 stop

33h 21m

LGW

London Gatwick

ORD

Chicago O'Hare Intl

1 stop

31h 23m

$671

Multiple Airlines

Deal found 6/5

Jul 25 - Aug 22

ORD

Chicago O'Hare Intl

LGW

London Gatwick

1 stop

16h 05m

LGW

London Gatwick

ORD

Chicago O'Hare Intl

1 stop

18h 03m

$694

Multiple Airlines

Deal found 6/5

Jul 18 - Sep 19

ORD

Chicago O'Hare Intl

LHR

London Heathrow

Nonstop

7h 45m

LHR

London Heathrow

ORD

Chicago O'Hare Intl

1 stop

13h 05m

$703

Finnair

Deal found 6/5

Jul 24 - Aug 30

ORD

Chicago O'Hare Intl

LGW

London Gatwick

1 stop

15h 30m

LGW

London Gatwick

ORD

Chicago O'Hare Intl

1 stop

14h 41m

$703

Multiple Airlines

Deal found 6/5

Jul 22 - Aug 30

ORD

Chicago O'Hare Intl

LGW

London Gatwick

2 stops

21h 50m

LGW

London Gatwick

ORD

Chicago O'Hare Intl

1 stop

14h 41m

$709

Multiple Airlines

Deal found 6/5

Jul 18 - Sep 19

ORD

Chicago O'Hare Intl

LHR

London Heathrow

1 stop

19h 08m

LHR

London Heathrow

ORD

Chicago O'Hare Intl

1 stop

13h 05m

$710

American Airlines

Deal found 6/5

Jul 31 - Aug 23

ORD

Chicago O'Hare Intl

LGW

London Gatwick

2 stops

18h 51m

LGW

London Gatwick

ORD

Chicago O'Hare Intl

1 stop

14h 41m

$711

Multiple Airlines

Deal found 6/5

Illinois to London 2023 flight deals

Check out some of the best flight deals from Illinois to London in 2023. More deals are always being added, so be sure to check back regularly.

Oct 23 - Oct 24

ORD

Chicago O'Hare Intl

LHR

London Heathrow

1 stop

12h 00m

LHR

London Heathrow

ORD

Chicago O'Hare Intl

1 stop

23h 20m

$347

Scandinavian Airlines

Deal found 6/5

Sep 25 - Oct 20

ORD

Chicago O'Hare Intl

LHR

London Heathrow

1 stop

14h 55m

LHR

London Heathrow

ORD

Chicago O'Hare Intl

1 stop

24h 15m

$422

Scandinavian Airlines

Deal found 6/5

Oct 8 - Oct 14

ORD

Chicago O'Hare Intl

LHR

London Heathrow

1 stop

12h 00m

LHR

London Heathrow

ORD

Chicago O'Hare Intl

1 stop

28h 25m

$428

Scandinavian Airlines

Deal found 6/4

Nov 1 - Nov 15

ORD

Chicago O'Hare Intl

LHR

London Heathrow

1 stop

17h 35m

LHR

London Heathrow

ORD

Chicago O'Hare Intl

1 stop

14h 15m

$434

Scandinavian Airlines

Deal found 6/5

Oct 19 - Oct 21

ORD

Chicago O'Hare Intl

LHR

London Heathrow

1 stop

17h 40m

LHR

London Heathrow

ORD

Chicago O'Hare Intl

1 stop

28h 25m

$527

Scandinavian Airlines

Deal found 6/5

Dec 3 - Dec 13

ORD

Chicago O'Hare Intl

LGW

London Gatwick

1 stop

11h 30m

LGW

London Gatwick

ORD

Chicago O'Hare Intl

2 stops

17h 25m

$539

Multiple Airlines

Deal found 6/6

Nov 5 - Nov 11

ORD

Chicago O'Hare Intl

LHR

London Heathrow

1 stop

18h 25m

LHR

London Heathrow

ORD

Chicago O'Hare Intl

1 stop

30h 35m

$541

TAP AIR PORTUGAL

Deal found 6/5

Nov 5 - Nov 8

ORD

Chicago O'Hare Intl

LGW

London Gatwick

1 stop

11h 30m

LGW

London Gatwick

ORD

Chicago O'Hare Intl

1 stop

15h 50m

$542

TAP AIR PORTUGAL

Deal found 6/4

Dec 3 - Dec 13

ORD

Chicago O'Hare Intl

LHR

London Heathrow

1 stop

13h 15m

LHR

London Heathrow

ORD

Chicago O'Hare Intl

1 stop

18h 15m

$546

TAP AIR PORTUGAL

Deal found 6/6

Cheap Delta flights from Illinois to London

Consider these cheap Delta flights we've found departing from Illinois to London. Make sure to double check the flight details before booking.

Oct 27 - Oct 31

ORD

Chicago O'Hare Intl

LGW

London Gatwick

1 stop

11h 40m

LGW

London Gatwick

ORD

Chicago O'Hare Intl

1 stop

14h 42m

$618

Delta

Deal found 6/4

Nov 1 - Nov 8

MDW

Chicago Midway

LHR

London Heathrow

1 stop

15h 05m

LHR

London Heathrow

MDW

Chicago Midway

2 stops

15h 49m

$649

Delta

Deal found 6/6

Nov 2 - Nov 12

MDW

Chicago Midway

LHR

London Heathrow

1 stop

16h 00m

LHR

London Heathrow

MDW

Chicago Midway

2 stops

16h 44m

$650

Delta

Deal found 6/6

Jun 13 - Jun 20

MDW

Chicago Midway

LHR

London Heathrow

1 stop

15h 19m

LHR

London Heathrow

MDW

Chicago Midway

2 stops

15h 39m

$2,058

Delta

Deal found 6/6

Jun 12 - Jun 20

ORD

Chicago O'Hare Intl

LCY

London City

1 stop

10h 40m

LCY

London City

ORD

Chicago O'Hare Intl

1 stop

10h 50m

$2,094

Delta

Deal found 6/5

Jun 13 - Jun 18

MDW

Chicago Midway

LHR

London Heathrow

1 stop

11h 01m

LHR

London Heathrow

MDW

Chicago Midway

2 stops

15h 39m

$2,278

Delta

Deal found 6/6

Jun 16 - Jul 10

ORD

Chicago O'Hare Intl

LCY

London City

1 stop

10h 00m

LCY

London City

ORD

Chicago O'Hare Intl

1 stop

12h 25m

$2,339

Delta

Deal found 6/5

Cheap KLM flights from Illinois to London

Some of the best deals we've found on KLM flights traveling from Illinois to London. Check back soon if you're not seeing flights that suit your needs.

Nov 2 - Nov 12

MDW

Chicago Midway

LHR

London Heathrow

1 stop

10h 45m

LHR

London Heathrow

MDW

Chicago Midway

1 stop

13h 15m

$664

KLM

Deal found 6/6

Nov 1 - Nov 13

ORD

Chicago O'Hare Intl

LCY

London City

1 stop

9h 50m

LCY

London City

ORD

Chicago O'Hare Intl

1 stop

11h 00m

$685

KLM

Deal found 6/5

Sep 28 - Oct 3

ORD

Chicago O'Hare Intl

LCY

London City

1 stop

10h 00m

LCY

London City

ORD

Chicago O'Hare Intl

1 stop

10h 50m

$742

KLM

Deal found 6/5

Jun 14 - Jul 4

MDW

Chicago Midway

LHR

London Heathrow

1 stop

10h 01m

LHR

London Heathrow

MDW

Chicago Midway

1 stop

11h 23m

$2,044

KLM

Deal found 6/6

Jun 14 - Jul 5

MDW

Chicago Midway

LHR

London Heathrow

1 stop

10h 01m

LHR

London Heathrow

MDW

Chicago Midway

1 stop

12h 03m

$2,048

KLM

Deal found 6/5

Jun 14 - Jun 21

MDW

Chicago Midway

LHR

London Heathrow

1 stop

10h 01m

LHR

London Heathrow

MDW

Chicago Midway

1 stop

12h 03m

$2,073

KLM

Deal found 6/6

Jun 14 - Jul 12

MDW

Chicago Midway

LHR

London Heathrow

1 stop

10h 01m

LHR

London Heathrow

MDW

Chicago Midway

1 stop

12h 16m

$2,094

KLM

Deal found 6/6

Jun 16 - Jul 5

ORD

Chicago O'Hare Intl

LCY

London City

1 stop

10h 00m

LCY

London City

ORD

Chicago O'Hare Intl

1 stop

10h 50m

$2,119

KLM

Deal found 6/5

Jun 13 - Jun 25

MDW

Chicago Midway

LHR

London Heathrow

1 stop

11h 01m

LHR

London Heathrow

MDW

Chicago Midway

1 stop

12h 03m

$2,123

KLM

Deal found 6/6

Non-stop flights to London from Illinois

To help reduce your travel time, choose from one of these non-stop flights from Illinois to London. Users seeking other options on flights from Illinois to London should update the search form at the top of the page.

Sep 24 - Oct 1

ORD

Chicago O'Hare Intl

LHR

London Heathrow

Nonstop

7h 45m

LHR

London Heathrow

ORD

Chicago O'Hare Intl

Nonstop

8h 45m

$584

Iberia

Deal found 6/4

Oct 16 - Oct 22

ORD

Chicago O'Hare Intl

LHR

London Heathrow

Nonstop

7h 40m

LHR

London Heathrow

ORD

Chicago O'Hare Intl

Nonstop

8h 40m

$609

British Airways

Deal found 6/6

Sep 30 - Oct 2

ORD

Chicago O'Hare Intl

LHR

London Heathrow

Nonstop

7h 40m

LHR

London Heathrow

ORD

Chicago O'Hare Intl

Nonstop

8h 55m

$635

British Airways

Deal found 6/5

Nov 1 - Nov 12

ORD

Chicago O'Hare Intl

LHR

London Heathrow

Nonstop

7h 40m

LHR

London Heathrow

ORD

Chicago O'Hare Intl

Nonstop

8h 55m

$642

Finnair

Deal found 6/5

Sep 27 - Oct 2

ORD

Chicago O'Hare Intl

LHR

London Heathrow

Nonstop

7h 45m

LHR

London Heathrow

ORD

Chicago O'Hare Intl

Nonstop

8h 40m

$648

British Airways

Deal found 6/5

Nov 1 - Nov 8

ORD

Chicago O'Hare Intl

LHR

London Heathrow

Nonstop

7h 45m

LHR

London Heathrow

ORD

Chicago O'Hare Intl

Nonstop

8h 55m

$649

British Airways

Deal found 6/5

Oct 23 - Nov 3

ORD

Chicago O'Hare Intl

LHR

London Heathrow

Nonstop

7h 45m

LHR

London Heathrow

ORD

Chicago O'Hare Intl

Nonstop

8h 55m

$667

British Airways

Deal found 6/4

Oct 13 - Oct 26

ORD

Chicago O'Hare Intl

LHR

London Heathrow

Nonstop

7h 45m

LHR

London Heathrow

ORD

Chicago O'Hare Intl

Nonstop

8h 40m

$668

British Airways

Deal found 6/5

Oct 27 - Oct 30

ORD

Chicago O'Hare Intl

LHR

London Heathrow

Nonstop

7h 45m

LHR

London Heathrow

ORD

Chicago O'Hare Intl

Nonstop

8h 55m

$669

British Airways

Deal found 6/4

Last minute flights from Illinois to London

Have a look at some of the last-minute flights available departing from Illinois to London. It's wise to confirm all flight details are correct before booking.

Jun 16 - Jun 19

ORD

Chicago O'Hare Intl

LGW

London Gatwick

2 stops

34h 11m

LGW

London Gatwick

ORD

Chicago O'Hare Intl

1 stop

25h 35m

$958

Multiple Airlines

Deal found 6/4

Jun 16 - Jun 18

ORD

Chicago O'Hare Intl

LGW

London Gatwick

2 stops

34h 11m

LGW

London Gatwick

ORD

Chicago O'Hare Intl

1 stop

34h 04m

$988

Multiple Airlines

Deal found 6/5

Jun 12 - Aug 21

ORD

Chicago O'Hare Intl

LGW

London Gatwick

1 stop

19h 42m

LGW

London Gatwick

ORD

Chicago O'Hare Intl

2 stops

47h 19m

$1,006

Multiple Airlines

Deal found 6/5

Jun 12 - Aug 21

ORD

Chicago O'Hare Intl

LGW

London Gatwick

1 stop

19h 42m

LGW

London Gatwick

ORD

Chicago O'Hare Intl

1 stop

25h 36m

$1,009

Multiple Airlines

Deal found 6/5

Jun 14 - Jun 22

STL

Lambert-St Louis

LHR

London Heathrow

3 stops

27h 15m

LHR

London Heathrow

STL

Lambert-St Louis

3 stops

30h 10m

$1,029

Multiple Airlines

Deal found 6/5

Jun 15 - Jun 18

ORD

Chicago O'Hare Intl

LGW

London Gatwick

2 stops

53h 45m

LGW

London Gatwick

ORD

Chicago O'Hare Intl

1 stop

15h 00m

$1,052

Multiple Airlines

Deal found 6/5

Jun 14 - Jun 18

ORD

Chicago O'Hare Intl

LGW

London Gatwick

2 stops

31h 10m

LGW

London Gatwick

ORD

Chicago O'Hare Intl

1 stop

34h 04m

$1,065

Multiple Airlines

Deal found 6/5

Jun 14 - Jul 5

ORD

Chicago O'Hare Intl

LTN

London Luton

1 stop

18h 20m

LTN

London Luton

ORD

Chicago O'Hare Intl

2 stops

34h 15m

$1,074

Multiple Airlines

Deal found 6/5

Jun 15 - Jun 23

ORD

Chicago O'Hare Intl

LGW

London Gatwick

2 stops

53h 45m

LGW

London Gatwick

ORD

Chicago O'Hare Intl

1 stop

15h 00m

$1,085

Multiple Airlines

Deal found 6/5

One-way flights to London from Illinois

Take a look at some of the one-way flights we've detected from Illinois to London. Users needing a return flight from Illinois to London should utilize the search form above.

Nov 12

ORD

Chicago O'Hare Intl

LHR

London Heathrow

1 stop

13h 15m

$214

TAP AIR PORTUGAL

Deal found 6/5

Nov 12

ORD

Chicago O'Hare Intl

LGW

London Gatwick

1 stop

11h 30m

$219

TAP AIR PORTUGAL

Deal found 6/5

Jul 25

ORD

Chicago O'Hare Intl

LGW

London Gatwick

1 stop

16h 05m

$223

Multiple Airlines

Deal found 6/5

Oct 22

ORD

Chicago O'Hare Intl

LGW

London Gatwick

1 stop

29h 40m

$224

TAP AIR PORTUGAL

Deal found 6/5

Nov 12

ORD

Chicago O'Hare Intl

LGW

London Gatwick

2 stops

16h 40m

$234

TAP AIR PORTUGAL

Deal found 6/5

Sep 25

ORD

Chicago O'Hare Intl

LHR

London Heathrow

1 stop

14h 45m

$236

TAP AIR PORTUGAL

Deal found 6/5

Oct 29

ORD

Chicago O'Hare Intl

LHR

London Heathrow

1 stop

13h 15m

$237

TAP AIR PORTUGAL

Deal found 6/5

Oct 16

MDW

Chicago Midway

LGW

London Gatwick

1 stop

32h 40m

$245

Multiple Airlines

Deal found 6/4

Oct 29

ORD

Chicago O'Hare Intl

LGW

London Gatwick

1 stop

29h 35m

$247

TAP AIR PORTUGAL

Deal found 6/5

Find flights from Illinois to London within your budget

Fly from

Fly to

Budget

$347 - $655

Route

Depart

Return

Price

Chicago O'Hare IntlLondon Heathrow

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Mon 10/23

1 stop12h 00m

London Heathrow

Tue 10/24

1 stop23h 20m

$347

Pick Dates

Chicago O'Hare IntlLondon Heathrow

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Sun 11/5

1 stop18h 25m

London Heathrow

Sat 11/11

1 stop32h 00m

$540

Pick Dates

Chicago O'Hare IntlLondon Gatwick

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Mon 10/23

1 stop10h 15m

London Gatwick

Fri 11/3

1 stop11h 20m

$554

Pick Dates

Chicago O'Hare IntlLondon Gatwick

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Sun 12/3

1 stop11h 30m

London Gatwick

Sun 12/10

2 stops19h 00m

$566

Pick Dates

Chicago O'Hare IntlLondon Heathrow

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Sun 9/24

1 stop11h 00m

London Heathrow

Sun 10/1

Nonstop8h 40m

$584

Pick Dates

Chicago O'Hare IntlLondon Gatwick

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Fri 10/27

1 stop11h 40m

London Gatwick

Tue 10/31

1 stop14h 42m

$618

Pick Dates

Chicago O'Hare IntlLondon Gatwick

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Sun 9/24

2 stops13h 46m

London Gatwick

Sun 10/1

2 stops17h 29m

$619

Pick Dates

Chicago MidwayLondon Heathrow

MDW - LHR

MDWLHR

Chicago Midway

Thu 11/2

1 stop15h 05m

London Heathrow

Sun 11/5

1 stop13h 15m

$629

Pick Dates

Chicago O'Hare IntlLondon Gatwick

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Fri 11/10

1 stop10h 00m

London Gatwick

Wed 11/15

1 stop11h 25m

$655

Pick Dates

Flights are sorted by cheapest first

Deals found on 6/5

Reviews of airlines servicing London

To help decide which airline to fly from Illinois to London, see what other customers have to say about Delta, KLM and Scandinavian Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

2,393 reviews

Check prices

Reviews

1 / 10

We paid for assigned seats but we were bumped to seats in the back and split up on both flights. I believe we deserve a refund for the seat charges.

Delta

8.0

Very good

2,393 reviews

Delta

8.0

Very good

2,393 reviews

Check prices

Reviews

1 / 10

We paid for assigned seats but we were bumped to seats in the back and split up on both flights. I believe we deserve a refund for the seat charges.

Air France

7.7

Good

198 reviews

Delta

8.0

Very good

2,393 reviews

Check prices

Reviews

1 / 10

We paid for assigned seats but we were bumped to seats in the back and split up on both flights. I believe we deserve a refund for the seat charges.

SWISS

7.6

Good

353 reviews

Delta

8.0

Very good

2,393 reviews

Check prices

Reviews

1 / 10

We paid for assigned seats but we were bumped to seats in the back and split up on both flights. I believe we deserve a refund for the seat charges.

United Airlines

7.6

Good

1,563 reviews

Delta

8.0

Very good

2,393 reviews

Check prices

Reviews

1 / 10

We paid for assigned seats but we were bumped to seats in the back and split up on both flights. I believe we deserve a refund for the seat charges.

KLM

7.6

Good

160 reviews

Delta

8.0

Very good

2,393 reviews

Check prices

Reviews

1 / 10

We paid for assigned seats but we were bumped to seats in the back and split up on both flights. I believe we deserve a refund for the seat charges.

Related info for your journey

Great question - ORD to LHR just means Chicago O'Hare Intl Airport to London Heathrow Airport. Now you’ll know what these unique codes when you look for flights! Ready for more IATA code knowledge? These are related airports for your current travel destination: London Gatwick Airport (LGW), London Stansted Airport (STN), London City Airport (LCY), London Luton Airport (LTN), London Southend Airport (SEN).

Flights to London from Illinois

Flights to Illinois

Flights to London

Flights from Illinois

Flights from London

Rent a Car

Car Rentals in London

Car Rentals in England

Car Rentals at Heathrow

Car Rentals at Gatwick

Car Rentals at Stansted

Car Rentals at London City

Departure points for flights from Illinois to London

Flights from O'Hare Intl to Heathrowfrom $647 pp

Top 10 airlines flying from Illinois to London

Airline	Cheapest	Average	Flexibility	On-time	COVID-19 safety
Icelandair	Cheapest$374	Average$729	FlexibilityNo cancel fee	On-time76%	COVID-19 safety	Search Icelandair flights
Scandinavian Airlines	Cheapest$381	Average$584	FlexibilityNo cancel fee	On-time77%	COVID-19 safety	Search Scandinavian Airlines flights
TAP AIR PORTUGAL	Cheapest$397	Average$690	FlexibilityNo cancel fee	On-timeN/A	COVID-19 safety	Search TAP AIR PORTUGAL flights
Aer Lingus	Cheapest$470	Average$641	FlexibilityNo cancel fee	On-timeN/A	COVID-19 safety	Search Aer Lingus flights
British Airways	Cheapest$470	Average$874	FlexibilityNo cancel fee	On-time70%	COVID-19 safety	Search British Airways flights
SWISS	Cheapest$522	Average$933	FlexibilityNo cancel fee	On-time79%	COVID-19 safety	Search SWISS flights
Air Canada	Cheapest$525	Average$840	FlexibilityNo cancel fee	On-time67%	COVID-19 safety	Search Air Canada flights
American Airlines	Cheapest$526	Average$1,001	FlexibilityNo cancel fee	On-time71%	COVID-19 safety	Search American Airlines flights
KLM	Cheapest$536	Average$666	FlexibilityNo cancel fee	On-time75%	COVID-19 safety	Search KLM flights
Iberia	Cheapest$543	Average$713	FlexibilityNo cancel fee	On-time77%	COVID-19 safety	Search Iberia flights

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Hourly flight availability from Illinois to London

1%of flight departures	Early morningMidnight to 6 am
10%of flight departures	Morning6 am to noon
29%of flight departures	AfternoonNoon to 6 pm
60%of flight departures	Evening6 pm to midnight

Midnight

6 AM

Noon

6 PM

Cheap flights from Illinois to London (LON) from $214

This is the cheapest one-way flight price, found on 6/5. Prices may vary by date and flight preferences.

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Cheap flights from Illinois to London in June, July 2023

The best prices found for Illinois to LON flights for June, July

Check out some of the best flight deals from Illinois to London in 2023. More deals are always being added, so be sure to check back regularly.

Illinois to London 2023 flight deals

Cheap flights to London from Illinois found for this year

Check out some of the best flight deals from Illinois to London in 2023. More deals are always being added, so be sure to check back regularly.

Cheap Delta flights from Illinois to London

Consider these cheap Delta flights we've found departing from Illinois to London. Make sure to double check the flight details before booking.

Cheap KLM flights from Illinois to London

Some of the best deals we've found on KLM flights traveling from Illinois to London. Check back soon if you're not seeing flights that suit your needs.

Non-stop flights to London from Illinois

Save time with Illinois to London direct flight deals

To help reduce your travel time, choose from one of these non-stop flights from Illinois to London. Users seeking other options on flights from Illinois to London should update the search form at the top of the page.

Last minute flights from Illinois to London

Late deals on return flights to London from Illinois, departing today and this week

Have a look at some of the last-minute flights available departing from Illinois to London. It's wise to confirm all flight details are correct before booking.

One-way flights to London from Illinois

The cheapest one-way flights from Illinois to London

Take a look at some of the one-way flights we've detected from Illinois to London. Users needing a return flight from Illinois to London should utilize the search form above.

Find flights from Illinois to London within your budget

Use the slider to find flights from Illinois to London that fit your budget.

Reviews of airlines servicing London

To help decide which airline to fly from Illinois to London, see what other customers have to say about Delta, KLM and Scandinavian Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

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

Can I find flights from Illinois to London for under $400 on Cheapflights?

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

Are there last-minute flights available from Illinois to London for under $1,000?

What days are nonstop flights available from Illinois to London?

How many flights depart from Illinois to London on average per day?

How long is the flight from Illinois to London?

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

What are the most popular routes from Illinois to London?

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

What are the most reliable airlines from Illinois to London?

What are the cheapest flights from Illinois to London?

What does ORD to LHR mean?

Flights to London from Illinois

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Departure points for flights from Illinois to London

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Top 10 airlines flying from Illinois to London

The chart below displays the airlines Cheapflights users traveling from Illinois to London choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.

Popular flight searches

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Hourly flight availability from Illinois to London

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