How long is the flight from United Kingdom to Illinois?

A quick flight from United Kingdom to Illinois can take about 11h 25m. Icelandair provides one of the quickest options available for as low as £515. The distance between United Kingdom and Illinois is about 3812 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?

£212 is the cheapest one-way deal found within the past few days, from Icelandair. You may also be able to find cheap deals on Aer Lingus and United Airlines, with prices starting from £320 and £325, 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.

£291+ 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 5 October 2026.

Fri 20/1106:05 -

2 stops17h 15m

Mon 30/1118:30 -

2 stops22h 00m

Deal found 4/10£415

Mon 23/1107:00 -

2 stops16h 20m

Mon 30/1118:30 -

2 stops12h 25m

Deal found 1/10£418

Mon 23/1106:05 -

2 stops17h 15m

Mon 30/1118:30 -

2 stops14h 15m

Deal found 1/10£420

Fri 20/1106:05 -

2 stops17h 15m

Sun 29/1118:30 -

2 stops21h 05m

Deal found 4/10£420

Mon 23/1107:55 -

2 stops15h 25m

Mon 30/1118:30 -

2 stops22h 00m

Deal found 1/10£425

Tue 17/1108:10 -

2 stops15h 10m

Tue 24/1118:30 -

2 stops12h 25m

Deal found 3/10£426

Wed 4/1106:30 -

2 stops16h 50m

Wed 11/1118:30 -

2 stops16h 10m

Deal found 30/9£429

Tue 24/1108:10 -

2 stops15h 10m

Sun 29/1118:30 -

2 stops21h 30m

Deal found 30/9£433

Mon 21/1206:05 -

2 stops17h 15m

Mon 4/118:30 -

2 stops17h 25m

Deal found 4/10£436

Fri 18/1207:35 -

2 stops15h 45m

Mon 4/118:30 -

2 stops18h 35m

Deal found 2/10£447

Tue 17/1108:30 -

2 stops14h 50m

Tue 24/1118:30 -

2 stops21h 05m

Deal found 3/10£449

Mon 23/1107:50 -

2 stops15h 30m

Mon 30/1118:30 -

2 stops12h 15m

Deal found 1/10£450

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 5 October 2026.

Fri 20/1106:05 -

2 stops17h 15m

Sun 29/1118:30 -

2 stops21h 05m

Deal found 4/10£420

Thu 5/1111:55 -

1 stop11h 25m

Mon 9/1118:30 -

1 stop10h 15m

Deal found 4/10£515

Thu 19/1106:40 -

2 stops16h 05m

Thu 26/1119:10 -

2 stops17h 40m

Deal found 4/10£538

Tue 17/1109:00 -

1 stop13h 15m

Tue 24/1118:50 -

1 stop12h 10m

Deal found 3/10£616

Sun 15/1109:05 -

1 stop34h 55m

Sun 22/1115:45 -

Nonstop8h 10m

Deal found 1/10£633

Sun 15/1112:15 -

2 stops32h 40m

Sun 22/1117:40 -

2 stops16h 25m

Deal found 1/10£644

Mon 16/1110:00 -

1 stop12h 15m

Mon 23/1114:44 -

2 stops19h 01m

Deal found 2/10£667

Thu 10/1208:30 -

1 stop13h 45m

Mon 3/519:05 -

1 stop16h 45m

Deal found 4/10£667

Thu 12/1116:00 -

1 stop29h 30m

Thu 26/1111:00 -

2 stops22h 50m

Deal found 2/10£670

Mon 9/1111:05 -

1 stop15h 25m

Mon 16/1114:31 -

2 stops13h 39m

Deal found 30/9£686

Sun 15/1117:50 -

1 stop26h 35m

Sun 22/1116:25 -

1 stop18h 10m

Deal found 1/10£714

Wed 25/1110:05 -

1 stop38h 15m

Tue 1/1211:45 -

1 stop22h 45m

Deal found 30/9£726

Sat 31/1005:55 -

1 stop14h 30m

Sat 7/1110:30 -

2 stops17h 45m

Deal found 3/10£736

Wed 18/1111:30 -

2 stops35h 15m

Sun 22/1119:10 -

2 stops20h 15m

Deal found 30/9£520

Wed 28/1006:40 -

1 stop16h 05m

Mon 9/1119:10 -

2 stops20h 25m

Deal found 1/10£547

Fri 18/1207:35 -

2 stops15h 45m

Mon 4/118:30 -

3 stops33h 25m

Deal found 2/10£544

Wed 25/1110:20 -

1 stop12h 25m

Tue 1/1219:10 -

2 stops20h 25m

Deal found 30/9£549

Fri 20/1111:35 -

1 stop11h 45m

Wed 2/1218:30 -

1 stop9h 25m

Deal found 5/10£610

Sun 15/1108:25 -

1 stop11h 45m

Sun 22/1115:55 -

1 stop10h 00m

Deal found 30/9£661

Wed 18/1106:40 -

2 stops19h 15m

Sun 22/1121:55 -

1 stop18h 35m

Deal found 30/9£551

Wed 21/1007:05 -

2 stops15h 05m

Mon 30/1119:10 -

2 stops20h 25m

Deal found 30/9£555

Thu 19/1108:30 -

1 stop13h 45m

Thu 26/1121:35 -

2 stops14h 15m

Deal found 4/10£678

Mon 16/1106:35 -

2 stops16h 20m

Tue 1/1212:56 -

2 stops14h 59m

Deal found 3/10£688

Mon 16/1106:00 -

2 stops21h 42m

Mon 23/1110:30 -

2 stops17h 10m

Deal found 2/10£707

Wed 9/1209:25 -

1 stop30h 20m

Wed 23/1214:22 -

2 stops35h 33m

Deal found 4/10£733

Tue 20/1007:05 -

2 stops15h 05m

Tue 17/1119:10 -

2 stops20h 10m

Deal found 1/10£558

Mon 23/1106:00 -

2 stops16h 18m

Tue 1/1214:39 -

2 stops16h 06m

Deal found 5/10£744

Wed 18/1112:35 -

1 stop11h 45m

Sun 22/1117:40 -

2 stops36h 25m

Deal found 30/9£682

Sat 23/105:55 -

2 stops20h 42m

Fri 29/106:00 -

2 stops22h 15m

Deal found 3/10£753

Thu 15/1013:05 -

1 stop11h 10m

Sun 13/1218:30 -

1 stop10h 15m

Deal found 4/10£687

Find flight deals from United Kingdom to Illinois

Round-trip from	£415
One-way from	£291
Popular in	August
Cheapest in	February
Average price	£628
Good round-trip deal	£580 or less
Good one-way deal	£494 or less

20/11-30/11
4 total stops
39h 15m total
United Kingdom to Illinois

Search Deals

17/11-31/12
2 total stops
39h 30m total
United Kingdom to Illinois

Search Deals

Highest demand for flights based on searches. 11% potential increase in price (£64 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 October 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

LeedsChicago

LBA Leeds/Bradford - ORD Chicago O'Hare Intl

LBAORD

Leeds/Bradford

Mon 15/2

19:30-19:15

2 stops29h 45m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£299

GlasgowChicago

GLA Glasgow Intl - ORD Chicago O'Hare Intl

GLAORD

Glasgow Intl

Fri 22/1

06:35-19:15

2 stops42h 40m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£324

LiverpoolChicago

LPL Liverpool J. Lennon - ORD Chicago O'Hare Intl

LPLORD

Liverpool J. Lennon

Fri 6/11

16:40-15:30

3 stops52h 50m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£325

LiverpoolChicago

LPL Liverpool J. Lennon - ORD Chicago O'Hare Intl

LPLORD

Liverpool J. Lennon

Wed 18/11

21:50-15:30

3 stops47h 40m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£325

EdinburghChicago

EDI Edinburgh Turnhouse - ORD Chicago O'Hare Intl

EDIORD

Edinburgh Turnhouse

Mon 9/11

22:35-15:30

3 stops46h 55m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£326

BristolChicago

BRS Bristol - ORD Chicago O'Hare Intl

BRSORD

Bristol

Fri 22/1

06:00-19:15

2 stops19h 15m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£328

EdinburghChicago

EDI Edinburgh Turnhouse - ORD Chicago O'Hare Intl

EDIORD

Edinburgh Turnhouse

Mon 30/11

22:35-15:30

3 stops46h 55m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£331

GlasgowChicago

GLA Glasgow Intl - ORD Chicago O'Hare Intl

GLAORD

Glasgow Intl

Sat 12/12

06:00-15:30

2 stops39h 30m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£341

LondonChicago

LHR London Heathrow - ORD Chicago O'Hare Intl

LHRORD

London Heathrow

Sun 29/11

09:30-13:10

1 stop33h 40m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£405

EdinburghChicago

EDI Edinburgh Turnhouse - ORD Chicago O'Hare Intl

EDIORD

Edinburgh Turnhouse

Fri 20/11

06:05-17:20

2 stops17h 15m

Chicago O'Hare Intl

Sun 29/11

18:30-21:35

2 stops21h 05m

£420

Flights are sorted by cheapest return flights first.

Deals found on 1/10

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.

EDI-ORD

NCL-ORD

BHX-ORD

GLA-ORD

MAN-ORD

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

EDI-ORD

NCL-ORD

BHX-ORD

GLA-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 £510). Flying from United Kingdom to Illinois in August is currently the most expensive (average of £813). 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 Friday (50 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (24 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

2,007 reviews

Check prices

Reviews

1 / 20

6.0

Good

siavash,Oct 2026

CPH - JFK

I was seated in premium economy and I didn’t feel the crew being attentive or a warm sense of hospitality, the plane was clean. The seats were comfortable.

Scandinavian Airlines

7.4

Good

2,007 reviews

Scandinavian Airlines

7.4

Good

2,007 reviews

Check prices

Reviews

1 / 20

6.0

Good

siavash,Oct 2026

CPH - JFK

I was seated in premium economy and I didn’t feel the crew being attentive or a warm sense of hospitality, the plane was clean. The seats were comfortable.

Aer Lingus

7.3

Good

1,812 reviews

Scandinavian Airlines

7.4

Good

2,007 reviews

Check prices

Reviews

1 / 20

6.0

Good

siavash,Oct 2026

CPH - JFK

I was seated in premium economy and I didn’t feel the crew being attentive or a warm sense of hospitality, the plane was clean. The seats were comfortable.

Icelandair

6.9

Okay

757 reviews

Scandinavian Airlines

7.4

Good

2,007 reviews

Check prices

Reviews

1 / 20

6.0

Good

siavash,Oct 2026

CPH - JFK

I was seated in premium economy and I didn’t feel the crew being attentive or a warm sense of hospitality, the plane was clean. The seats were comfortable.

Lufthansa

6.8

Okay

8,256 reviews

Scandinavian Airlines

7.4

Good

2,007 reviews

Check prices

Reviews

1 / 20

6.0

Good

siavash,Oct 2026

CPH - JFK

I was seated in premium economy and I didn’t feel the crew being attentive or a warm sense of hospitality, the plane was clean. The seats were comfortable.

British Airways

6.7

Okay

8,244 reviews

Scandinavian Airlines

7.4

Good

2,007 reviews

Check prices

Reviews

1 / 20

6.0

Good

siavash,Oct 2026

CPH - JFK

I was seated in premium economy and I didn’t feel the crew being attentive or a warm sense of hospitality, the plane was clean. The seats were comfortable.

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 11h 25m. Icelandair provides one of the quickest options available for as low as £515. The distance between United Kingdom and Illinois is about 3812 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?
£212 is the cheapest one-way deal found within the past few days, from Icelandair. You may also be able to find cheap deals on Aer Lingus and United Airlines, with prices starting from £320 and £325, 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 £510). Flying from United Kingdom to Illinois in August is currently the most expensive (average of £813). 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 Illinois

Top 10 airlines flying from United Kingdom to Illinois

Airline	Cheapest	Average	Flexibility	On-time
Ryanair	Cheapest£30	Average£62	FlexibilityNo cancel fee	On-timeN/A	Search Ryanair flights
Icelandair	Cheapest£206	Average£581	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
Virgin Atlantic	Cheapest£214	Average£737	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
Turkish Airlines	Cheapest£353	Average£702	FlexibilityNo cancel fee	On-time77%	Search Turkish Airlines flights
JetBlue	Cheapest£389	Average£657	FlexibilityNo cancel fee	On-time62%	Search JetBlue flights
Scandinavian Airlines	Cheapest£391	Average£544	FlexibilityNo cancel fee	On-time77%	Search Scandinavian Airlines flights
TAP AIR PORTUGAL	Cheapest£393	Average£589	FlexibilityNo cancel fee	On-timeN/A	Search TAP AIR PORTUGAL flights
Brussels Airlines	Cheapest£411	Average£798	FlexibilityNo cancel fee	On-timeN/A	Search Brussels Airlines flights
British Airways	Cheapest£426	Average£660	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Finnair	Cheapest£434	Average£730	FlexibilityNo cancel fee	On-time76%	Search Finnair 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 £291

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 17/11. 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 5 October 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 5 October 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 5 October 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 5 October 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 5 October 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 5 October 2026.

Last-minute flights from United Kingdom to IllinoisDiscover last-minute flight deals from United Kingdom to Illinois. Data last updated 5 October 2026 and is based on user searches.

Discover last-minute flight deals from United Kingdom to Illinois. Data last updated 5 October 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 5 October 2026.

Search for one-way flight options from United Kingdom to Illinois. Find affordable one-way fares based on user searches. Data last updated 5 October 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 5 October 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 Friday (50 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (24 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 5 October 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 5 October 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 5 October 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 5 October 2026.

Last-minute flights from United Kingdom to Illinois
Discover last-minute flight deals from United Kingdom to Illinois. Data last updated 5 October 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 5 October 2026.