How long is the flight from United Kingdom to Illinois?

A quick flight from United Kingdom to Illinois can take about 12h. Icelandair provides one of the quickest options available for as low as £500. The distance between United Kingdom and Illinois is about 3699 mi. Both multi-stop and direct flights can be found to your destination and back.

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

£208 is the cheapest one-way deal found within the past few days, from Icelandair. You may also be able to find cheap deals on JetBlue and Aer Lingus, with prices starting from £308 and £314, respectively.

In terms of precipitation, rainfall in Illinois ranges from 43.0 - 125.0 inches per month. August is typically the wettest month, when rainfall can reach 125.0 mm. January is typically the driest time to visit Illinois when rainfall is around 43.0 mm.

If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -5.0 C).

Can I find deals for flights from United Kingdom to Illinois that include hotel bookings?

Yes. In addition to deals on United Kingdom to Illinois flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from United Kingdom to Illinois?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from United Kingdom to Illinois.

Can I find deals for business class flights from United Kingdom to Illinois?

Yes. Cheapflights offers flight deals from United Kingdom to Illinois by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£293+ Cheap Flights from the United Kingdom to Illinois

Cheap flight deals from United Kingdom to Illinois

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

Cheapest flights from United Kingdom to Illinois
Explore the most affordable flight options available from United Kingdom to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 8 September 2026.

Mon 23/1107:35 -

2 stops15h 45m

Tue 1/1218:30 -

2 stops21h 05m

Deal found 6/9£430

Thu 24/1206:00 -

1 stop17h 20m

Wed 30/1218:30 -

1 stop11h 15m

Deal found 2/9£437

Thu 12/1107:30 -

2 stops15h 50m

Sun 15/1118:30 -

2 stops19h 15m

Deal found 7/9£452

Thu 12/1111:20 -

1 stop12h 00m

Mon 7/1218:30 -

1 stop9h 50m

Deal found 5/9£456

Sun 20/1207:45 -

1 stop15h 35m

Wed 30/1218:30 -

1 stop11h 15m

Deal found 2/9£457

Thu 19/1111:20 -

1 stop12h 00m

Mon 30/1118:30 -

1 stop9h 50m

Deal found 6/9£459

Sat 21/1106:00 -

1 stop14h 10m

Sun 29/1120:05 -

1 stop17h 40m

Deal found 5/9£492

Thu 5/1111:20 -

1 stop12h 00m

Sat 12/1218:30 -

1 stop9h 50m

Deal found 3/9£500

Thu 3/1211:20 -

1 stop12h 00m

Mon 7/1218:30 -

1 stop9h 50m

Deal found 4/9£506

Thu 15/1007:45 -

2 stops34h 50m

Sat 24/1019:50 -

2 stops23h 25m

Deal found 4/9£508

Thu 29/1008:00 -

2 stops15h 20m

Fri 6/1118:30 -

1 stop10h 15m

Deal found 7/9£514

Tue 20/1012:05 -

1 stop13h 10m

Wed 4/1115:55 -

1 stop9h 40m

Deal found 7/9£516

Best flights from United Kingdom to Illinois
Discover carefully curated flight deals from United Kingdom to Illinois that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 8 September 2026.

Thu 5/1111:20 -

1 stop12h 00m

Wed 16/1218:30 -

1 stop9h 50m

Deal found 3/9£500

Tue 6/1013:10 -

1 stop12h 05m

Tue 13/1015:45 -

1 stop11h 30m

Deal found 6/9£525

Sat 14/1112:10 -

1 stop12h 10m

Sat 28/1115:55 -

1 stop11h 10m

Deal found 7/9£538

Thu 5/1112:55 -

2 stops33h 50m

Mon 9/1119:15 -

2 stops35h 00m

Deal found 4/9£562

Wed 7/1006:30 -

2 stops17h 30m

Sun 18/1013:27 -

1 stop11h 43m

Deal found 3/9£582

Tue 6/1008:55 -

2 stops19h 38m

Mon 19/1013:27 -

1 stop11h 43m

Deal found 3/9£587

Thu 15/1012:10 -

1 stop30h 25m

Thu 22/1018:05 -

Nonstop8h 25m

Deal found 3/9£597

Tue 22/916:25 -

1 stop29h 35m

Wed 21/1018:00 -

2 stops20h 30m

Deal found 5/9£622

Tue 24/1119:05 -

1 stop23h 35m

Wed 2/1216:10 -

1 stop14h 40m

Deal found 7/9£628

Thu 15/1009:30 -

1 stop33h 55m

Wed 21/1009:00 -

1 stop18h 40m

Deal found 7/9£655

Sat 10/1017:45 -

1 stop21h 55m

Thu 15/1020:10 -

1 stop38h 40m

Deal found 4/9£677

Fri 16/1009:20 -

1 stop10h 55m

Tue 20/1016:15 -

1 stop10h 35m

Deal found 6/9£726

Mon 19/1008:15 -

1 stop11h 45m

Wed 21/1021:00 -

1 stop12h 25m

Deal found 5/9£529

Thu 5/1108:50 -

1 stop11h 20m

Thu 19/1115:55 -

1 stop11h 10m

Deal found 5/9£538

Thu 12/1110:25 -

2 stops36h 20m

Fri 27/1119:15 -

2 stops18h 25m

Deal found 5/9£570

Mon 28/911:45 -

2 stops16h 33m

Thu 28/105:30 -

1 stop18h 55m

Deal found 4/9£583

Sat 21/1111:05 -

2 stops35h 40m

Sat 5/1219:15 -

3 stops21h 25m

Deal found 6/9£534

Sat 31/1006:20 -

2 stops16h 40m

Sat 7/1111:33 -

2 stops13h 47m

Deal found 7/9£588

Tue 22/913:25 -

1 stop11h 50m

Wed 21/1015:45 -

1 stop10h 20m

Deal found 4/9£539

Wed 30/1207:40 -

Nonstop9h 05m

Wed 6/115:29 -

1 stop11h 41m

Deal found 4/9£626

Mon 9/1108:40 -

2 stops16h 04m

Sat 14/1118:00 -

1 stop20h 10m

Deal found 5/9£584

Sat 3/1009:00 -

1 stop11h 00m

Mon 12/1021:00 -

1 stop12h 45m

Deal found 8/9£536

Thu 28/116:00 -

1 stop29h 30m

Sun 31/107:40 -

2 stops20h 10m

Deal found 7/9£651

Sat 26/910:45 -

2 stops17h 59m

Sat 3/1011:35 -

2 stops13h 35m

Deal found 4/9£597

Thu 22/1007:05 -

2 stops15h 05m

Tue 3/1119:15 -

2 stops20h 05m

Deal found 6/9£606

Thu 1/1009:15 -

1 stop12h 40m

Thu 28/118:30 -

2 stops16h 35m

Deal found 4/9£669

Thu 19/1110:55 -

1 stop29h 05m

Sat 5/1211:45 -

1 stop22h 35m

Deal found 3/9£679

Mon 12/1007:30 -

2 stops17h 31m

Tue 20/1008:55 -

1 stop20h 55m

Deal found 6/9£652

Wed 14/1013:25 -

1 stop11h 50m

Tue 24/1117:10 -

Nonstop7h 45m

Deal found 3/9£593

Tue 6/1010:35 -

2 stops17h 08m

Mon 19/1010:24 -

2 stops17h 16m

Deal found 3/9£598

Find flight deals from United Kingdom to Illinois

Round-trip from	£430
One-way from	£293
Popular in	August
Cheapest in	February
Average price	£588
Good round-trip deal	£605 or less
Good one-way deal	£517 or less

23/11-1/12
4 total stops
36h 50m total
United Kingdom to Illinois

Search Deals

25/1-31/12
2 total stops
34h 50m total
United Kingdom to Illinois

Search Deals

Highest demand for flights based on searches. 12% potential increase in price (£63 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£11 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Price to beat on a round-trip flight from United Kingdom to Illinois.

Search Deals

Price to beat on a one-way flight from United Kingdom to Illinois.

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from the United Kingdom to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonChicago

LHR London Heathrow - ORD Chicago O'Hare Intl

LHRORD

London Heathrow

Sun 6/12

20:05-16:15

1 stop26h 10m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£350

LondonChicago

LHR London Heathrow - ORD Chicago O'Hare Intl

LHRORD

London Heathrow

Sun 29/11

09:05-14:00

1 stop34h 55m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£352

LondonChicago

LTN London Luton - ORD Chicago O'Hare Intl

LTNORD

London Luton

Thu 26/11

18:05-15:30

3 stops27h 25m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£360

LondonChicago

LHR London Heathrow - ORD Chicago O'Hare Intl

LHRORD

London Heathrow

Mon 25/1

06:00-16:15

1 stop16h 15m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£362

LondonChicago

LTN London Luton - ORD Chicago O'Hare Intl

LTNORD

London Luton

Mon 14/9

20:35-16:00

3 stops49h 25m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£365

LondonChicago

LTN London Luton - ORD Chicago O'Hare Intl

LTNORD

London Luton

Wed 27/1

21:30-14:55

1 stop23h 25m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£365

LondonChicago

LTN London Luton - ORD Chicago O'Hare Intl

LTNORD

London Luton

Tue 26/1

21:30-14:55

1 stop23h 25m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£365

LondonChicago

LGW London Gatwick - MDW Chicago Midway

LGWMDW

London Gatwick

Fri 20/11

12:35-12:24

1 stop29h 49m

Chicago Midway

Wed 31/12

00:00-07:00

Nonstop0h 00m

£373

LondonSt. Louis

LHR London Heathrow - STL Lambert-St Louis

LHRSTL

London Heathrow

Wed 4/11

06:30-13:45

1 stop13h 15m

Lambert-St Louis

Wed 31/12

00:00-07:00

Nonstop0h 00m

£408

LondonSt. Louis

LHR London Heathrow - STL Lambert-St Louis

LHRSTL

London Heathrow

Wed 2/12

06:30-13:45

1 stop13h 15m

Lambert-St Louis

Wed 31/12

00:00-07:00

Nonstop0h 00m

£408

Flights are sorted by cheapest return flights first.

Deals found on 6/9

Showing 1-10 of 60 resultsSorted by cheapest first

...

Best time to book a flight from United Kingdom to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from United Kingdom with our price prediction graph.

LHR-ORD

EDI-ORD

MAN-ORD

LTN-ORD

LHR-MDW

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from the United Kingdom to Illinois

GB0-USIL

LHR-ORD

EDI-ORD

MAN-ORD

LTN-ORD

What is the cheapest month to book a flight from United Kingdom to Illinois?

Currently, February is the cheapest month in which you can book a flight from United Kingdom to Illinois (average of £488). Flying from United Kingdom to Illinois in August is currently the most expensive (average of £791). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from GB to IL?

When flying from United Kingdom to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from United Kingdom to Illinois

The most flights from GB0 to USIL are scheduled on a Thursday (49 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (19 on average).

How far ahead should I book a flight from United Kingdom to Illinois?

Booking 62 days in advance of your planned departure date is, on average, the best time to get cheap flights from United Kingdom to Illinois. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Reviews of airlines servicing Illinois

Read through reviews of airlines operating flights from the United Kingdom to Illinois, such as Scandinavian Airlines,Aer Lingus, andIcelandair. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Scandinavian Airlines

7.4

Good

1,980 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Robert,Jul 2026

CPH - SFO

First rate expereince.! We've never flown SAS before but will defintely fly it again.

Scandinavian Airlines

7.4

Good

1,980 reviews

Scandinavian Airlines

7.4

Good

1,980 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Robert,Jul 2026

CPH - SFO

First rate expereince.! We've never flown SAS before but will defintely fly it again.

Aer Lingus

7.3

Good

1,751 reviews

Scandinavian Airlines

7.4

Good

1,980 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Robert,Jul 2026

CPH - SFO

First rate expereince.! We've never flown SAS before but will defintely fly it again.

Icelandair

6.9

Okay

741 reviews

Scandinavian Airlines

7.4

Good

1,980 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Robert,Jul 2026

CPH - SFO

First rate expereince.! We've never flown SAS before but will defintely fly it again.

Lufthansa

6.8

Okay

8,219 reviews

Scandinavian Airlines

7.4

Good

1,980 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Robert,Jul 2026

CPH - SFO

First rate expereince.! We've never flown SAS before but will defintely fly it again.

British Airways

6.7

Okay

8,209 reviews

Scandinavian Airlines

7.4

Good

1,980 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Robert,Jul 2026

CPH - SFO

First rate expereince.! We've never flown SAS before but will defintely fly it again.

Related info for your journey

How long is the flight from United Kingdom to Illinois?
A quick flight from United Kingdom to Illinois can take about 12h. Icelandair provides one of the quickest options available for as low as £500. The distance between United Kingdom and Illinois is about 3699 mi. Both multi-stop and direct flights can be found to your destination and back.
What are the cheapest airlines to fly from United Kingdom to Illinois one-way?
£208 is the cheapest one-way deal found within the past few days, from Icelandair. You may also be able to find cheap deals on JetBlue and Aer Lingus, with prices starting from £308 and £314, respectively.
Can I find deals for flights from United Kingdom to Illinois that include hotel bookings?
Yes. In addition to deals on United Kingdom to Illinois flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from United Kingdom to Illinois?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from United Kingdom to Illinois.
Can I find deals for business class flights from United Kingdom to Illinois?
Yes. Cheapflights offers flight deals from United Kingdom to Illinois by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from United Kingdom to Illinois?
Currently, February is the cheapest month in which you can book a flight from United Kingdom to Illinois (average of £488). Flying from United Kingdom to Illinois in August is currently the most expensive (average of £791). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Airlines

Alternative routes

Complete your trip

Direct flights to United States

Flights by cabin class

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Popular flights

Return Flight Options

Top destinations

Airlines flying to Illinois

Icelandair flights to Illinois

Aer Lingus flights to Illinois

Finnair flights to Illinois

Lufthansa flights to Illinois

British Airways flights to Illinoisfrom £473/person

Top 10 airlines flying from United Kingdom to Illinois

Airline	Cheapest	Average	Flexibility	On-time
Ryanair	Cheapest£29	Average£61	FlexibilityNo cancel fee	On-timeN/A	Search Ryanair flights
Icelandair	Cheapest£202	Average£566	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
Virgin Atlantic	Cheapest£327	Average£703	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
Turkish Airlines	Cheapest£345	Average£688	FlexibilityNo cancel fee	On-time77%	Search Turkish Airlines flights
Scandinavian Airlines	Cheapest£376	Average£495	FlexibilityNo cancel fee	On-time77%	Search Scandinavian Airlines flights
JetBlue	Cheapest£380	Average£643	FlexibilityNo cancel fee	On-time62%	Search JetBlue flights
TAP AIR PORTUGAL	Cheapest£384	Average£574	FlexibilityNo cancel fee	On-timeN/A	Search TAP AIR PORTUGAL flights
Brussels Airlines	Cheapest£391	Average£660	FlexibilityNo cancel fee	On-timeN/A	Search Brussels Airlines flights
British Airways	Cheapest£403	Average£645	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Lufthansa	Cheapest£411	Average£769	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights

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How does Cheapflights help users find flights from United Kingdom to Illinois?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Illinois from United Kingdom today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from United Kingdom to Illinois?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Illinois from United Kingdom.

Can Cheapflights find flights from United Kingdom to Illinois with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from United Kingdom to Illinois, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from United Kingdom to Illinois become cheaper?

Yes, Cheapflights offers price alerts on United Kingdom to Illinois flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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Cheap flights from the United Kingdom to Illinois from £293

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 25/1. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from United Kingdom to Illinois

Cheapest flights from United Kingdom to IllinoisExplore the most affordable flight options available from United Kingdom to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 8 September 2026.

Explore the most affordable flight options available from United Kingdom to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 8 September 2026.

Best flights from United Kingdom to IllinoisDiscover carefully curated flight deals from United Kingdom to Illinois that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 8 September 2026.

Discover carefully curated flight deals from United Kingdom to Illinois that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 8 September 2026.

Direct flights from United Kingdom to IllinoisExplore direct flight options from United Kingdom to Illinois based on user searches, and compare prices and availability for your desired travel dates. Data last updated 8 September 2026.

Explore direct flight options from United Kingdom to Illinois based on user searches, and compare prices and availability for your desired travel dates. Data last updated 8 September 2026.

Last-minute flights from United Kingdom to IllinoisDiscover last-minute flight deals from United Kingdom to Illinois. Data last updated 8 September 2026 and is based on user searches.

Discover last-minute flight deals from United Kingdom to Illinois. Data last updated 8 September 2026 and is based on user searches.

One-way flights from United Kingdom to IllinoisSearch for one-way flight options from United Kingdom to Illinois. Find affordable one-way fares based on user searches. Data last updated 8 September 2026.

Search for one-way flight options from United Kingdom to Illinois. Find affordable one-way fares based on user searches. Data last updated 8 September 2026.

Find flight deals from United Kingdom to Illinois

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Cheapflights Fare Finder

Use the filters below to find and compare flights from the United Kingdom to Illinois that are best for you.

Best time to book a flight from United Kingdom to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from United Kingdom with our price prediction graph.

Cheapflights Insights

What is the cheapest month to book a flight from United Kingdom to Illinois?

What is the cheapest time of day to fly from GB to IL?

Find hourly flight availability from United Kingdom to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 8 September 2026.

When flying from United Kingdom to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from United Kingdom to Illinois

The most flights from GB0 to USIL are scheduled on a Thursday (49 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (19 on average).

How far ahead should I book a flight from United Kingdom to Illinois?

Booking 62 days in advance of your planned departure date is, on average, the best time to get cheap flights from United Kingdom to Illinois. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Reviews of airlines servicing Illinois

Read through reviews of airlines operating flights from the United Kingdom to Illinois, such as Scandinavian Airlines,Aer Lingus, andIcelandair. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

How long is the flight from United Kingdom to Illinois?

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

Can I find deals for flights from United Kingdom to Illinois that include hotel bookings?

How can I find direct flights from United Kingdom to Illinois?

Can I find deals for business class flights from United Kingdom to Illinois?

What is the cheapest month to book a flight from United Kingdom to Illinois?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Airlines flying to Illinois

Alternative routes for United Kingdom to Illinois

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

Complete your trip

Complete your trip to Illinois by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to United States

Book a non-stop flight to one of these other cities located in United States.

Search flights from United Kingdom to Illinois by cabin class

Find flights from United Kingdom to Illinois, based on your preferred cabin class, be it economy, premium economy, business, or first class.

United Kingdom and Illinois flights

Browse other United Kingdom and Illinois flight options. Last updated on 8 September 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Find a return flight route from Illinois

Find the right flight back to United Kingdom after your stay in Illinois

United Kingdom to Illinois flights

Consider these flights travelling from United Kingdom to Illinois.

Top 10 airlines flying from United Kingdom to Illinois

Fly with Cheapflights

How does Cheapflights help users find flights from United Kingdom to Illinois?

Why should you use Cheapflights to find cheap flight tickets from United Kingdom to Illinois?

Can Cheapflights find flights from United Kingdom to Illinois with no change fees?

Can Cheapflights notify me if prices for flights from United Kingdom to Illinois become cheaper?

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Cheapest flights from United Kingdom to Illinois
Explore the most affordable flight options available from United Kingdom to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 8 September 2026.

Best flights from United Kingdom to Illinois
Discover carefully curated flight deals from United Kingdom to Illinois that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 8 September 2026.

Direct flights from United Kingdom to Illinois
Explore direct flight options from United Kingdom to Illinois based on user searches, and compare prices and availability for your desired travel dates. Data last updated 8 September 2026.

Last-minute flights from United Kingdom to Illinois
Discover last-minute flight deals from United Kingdom to Illinois. Data last updated 8 September 2026 and is based on user searches.

One-way flights from United Kingdom to Illinois
Search for one-way flight options from United Kingdom to Illinois. Find affordable one-way fares based on user searches. Data last updated 8 September 2026.