How long is the flight from United Kingdom to Illinois?

A quick flight from United Kingdom to Illinois can take about 11h 25m. Scandinavian Airlines provides one of the quickest options available for as low as £481. 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 JetBlue and Aer Lingus, with prices starting from £314 and £319, 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.

£283+ 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 24 September 2026.

Wed 25/1119:10 -

1 stop27h 35m

Mon 30/1119:15 -

1 stop17h 10m

Deal found 20/9£335

Wed 11/1119:10 -

1 stop27h 35m

Sat 14/1119:15 -

1 stop17h 15m

Deal found 20/9£340

Wed 25/1119:10 -

1 stop27h 35m

Sun 29/1119:15 -

1 stop17h 15m

Deal found 19/9£362

Thu 19/1119:10 -

1 stop27h 35m

Mon 23/1119:15 -

1 stop17h 10m

Deal found 20/9£385

Thu 5/1112:00 -

2 stops34h 45m

Thu 12/1119:15 -

2 stops23h 05m

Deal found 21/9£395

Wed 25/1119:50 -

2 stops26h 55m

Mon 30/1119:15 -

2 stops17h 55m

Deal found 20/9£407

Wed 4/1118:05 -

2 stops28h 40m

Wed 11/1119:15 -

3 stops20h 25m

Deal found 20/9£414

Wed 4/1118:50 -

2 stops27h 55m

Thu 12/1119:15 -

2 stops18h 00m

Deal found 21/9£418

Mon 2/1110:50 -

2 stops35h 55m

Sun 15/1119:15 -

2 stops20h 55m

Deal found 20/9£424

Wed 4/1113:35 -

3 stops33h 10m

Wed 11/1119:15 -

3 stops31h 25m

Deal found 20/9£431

Fri 6/1117:15 -

3 stops29h 30m

Sun 8/1119:15 -

3 stops31h 15m

Deal found 21/9£433

Wed 4/1108:35 -

2 stops14h 45m

Mon 9/1118:30 -

2 stops14h 15m

Deal found 22/9£440

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 24 September 2026.

Wed 4/1118:05 -

2 stops28h 40m

Wed 11/1119:15 -

2 stops20h 25m

Deal found 20/9£424

Thu 5/1111:55 -

1 stop11h 25m

Mon 9/1118:30 -

1 stop10h 15m

Deal found 21/9£507

Fri 13/1119:10 -

1 stop27h 35m

Mon 23/1107:05 -

2 stops29h 25m

Deal found 20/9£526

Mon 2/1106:35 -

1 stop13h 35m

Mon 16/1116:10 -

1 stop13h 05m

Deal found 23/9£541

Mon 2/1108:50 -

1 stop11h 20m

Sun 15/1121:50 -

Nonstop7h 45m

Deal found 23/9£548

Thu 15/1008:10 -

1 stop11h 50m

Tue 20/1015:45 -

1 stop13h 15m

Deal found 19/9£550

Sun 1/1106:00 -

1 stop14h 25m

Tue 17/1118:25 -

1 stop17h 15m

Deal found 24/9£553

Sun 8/1110:40 -

2 stops19h 17m

Sun 15/1117:05 -

2 stops14h 30m

Deal found 24/9£557

Mon 2/1110:25 -

Nonstop9h 20m

Mon 16/1121:50 -

Nonstop8h 10m

Deal found 22/9£568

Sun 8/1117:15 -

1 stop27h 10m

Sun 15/1117:05 -

2 stops13h 40m

Deal found 24/9£574

Wed 3/205:40 -

1 stop14h 45m

Mon 8/216:25 -

1 stop11h 30m

Deal found 23/9£589

Wed 30/912:05 -

2 stops30h 35m

Sat 10/1018:05 -

2 stops44h 20m

Deal found 22/9£639

Thu 12/1108:30 -

2 stops15h 45m

Sun 15/1121:35 -

2 stops14h 15m

Deal found 19/9£643

Sun 8/1106:20 -

1 stop13h 50m

Sun 15/1115:55 -

1 stop9h 40m

Deal found 24/9£466

Sun 1/1119:10 -

1 stop27h 35m

Sat 14/1111:00 -

2 stops25h 30m

Deal found 20/9£526

Mon 16/1122:40 -

2 stops45h 45m

Sun 29/1118:30 -

1 stop9h 25m

Deal found 23/9£489

Sat 7/1112:10 -

1 stop12h 10m

Sat 14/1115:55 -

1 stop10h 10m

Deal found 22/9£552

Tue 24/1108:10 -

1 stop12h 00m

Fri 27/1120:05 -

1 stop14h 40m

Deal found 19/9£555

Wed 4/1106:00 -

1 stop14h 25m

Mon 9/1118:00 -

2 stops17h 40m

Deal found 21/9£558

Tue 20/1008:45 -

1 stop13h 10m

Tue 17/1115:45 -

Nonstop8h 10m

Deal found 20/9£579

Tue 24/1105:40 -

2 stops16h 38m

Wed 6/118:10 -

2 stops40h 20m

Deal found 22/9£587

Thu 22/1017:25 -

1 stop26h 50m

Thu 29/1017:25 -

1 stop18h 20m

Deal found 20/9£591

Sat 7/1110:00 -

1 stop12h 15m

Sat 14/1109:59 -

2 stops17h 01m

Deal found 22/9£600

Tue 3/1108:30 -

2 stops14h 50m

Tue 10/1118:30 -

2 stops14h 45m

Deal found 19/9£497

Sat 21/1106:15 -

1 stop14h 10m

Sat 28/1117:05 -

2 stops14h 30m

Deal found 20/9£558

Tue 20/1007:05 -

2 stops15h 05m

Tue 17/1119:10 -

2 stops20h 10m

Deal found 23/9£560

Tue 3/1108:30 -

1 stop11h 40m

Tue 10/1120:05 -

1 stop13h 10m

Deal found 19/9£571

Fri 6/1110:00 -

1 stop12h 15m

Sun 8/1107:25 -

2 stops19h 35m

Deal found 23/9£600

Mon 12/1017:15 -

1 stop27h 00m

Sun 18/1016:15 -

1 stop18h 30m

Deal found 22/9£602

Sat 7/1108:45 -

1 stop15h 35m

Sat 14/1115:55 -

1 stop11h 05m

Deal found 23/9£506

Find flight deals from United Kingdom to Illinois

Round-trip from	£330
One-way from	£283
Popular in	August
Cheapest in	February
Average price	£628
Good round-trip deal	£619 or less
Good one-way deal	£536 or less

Scandinavian Airlines
2/11-10/11
2 total stops
44h 50m total
United Kingdom to Illinois

Search Deals

11/11-31/12
2 total stops
40h 45m total
United Kingdom to Illinois

Search Deals

Highest demand for flights based on searches. 12% potential increase in price (£66 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

ManchesterChicago

MAN Manchester - ORD Chicago O'Hare Intl

MANORD

Manchester

Wed 11/11

08:00-17:20

3 stops39h 20m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£296

GlasgowChicago

GLA Glasgow Intl - ORD Chicago O'Hare Intl

GLAORD

Glasgow Intl

Tue 26/1

22:05-19:15

3 stops27h 10m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£311

ManchesterChicago

MAN Manchester - ORD Chicago O'Hare Intl

MANORD

Manchester

Mon 2/11

18:35-15:30

2 stops50h 55m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£311

LeedsChicago

LBA Leeds/Bradford - ORD Chicago O'Hare Intl

LBAORD

Leeds/Bradford

Sat 14/11

20:40-14:25

2 stops23h 45m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£317

ManchesterChicago

MAN Manchester - ORD Chicago O'Hare Intl

MANORD

Manchester

Wed 4/11

19:05-15:30

2 stops50h 25m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£318

GlasgowChicago

GLA Glasgow Intl - ORD Chicago O'Hare Intl

GLAORD

Glasgow Intl

Sun 24/1

21:25-19:15

3 stops27h 50m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£319

GlasgowChicago

GLA Glasgow Intl - ORD Chicago O'Hare Intl

GLAORD

Glasgow Intl

Mon 11/1

20:40-17:20

2 stops26h 40m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£334

LondonChicago

LHR London Heathrow - ORD Chicago O'Hare Intl

LHRORD

London Heathrow

Mon 16/11

17:10-16:15

1 stop29h 05m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£361

LondonChicago

LGW London Gatwick - ORD Chicago O'Hare Intl

LGWORD

London Gatwick

Sun 22/11

18:40-16:15

1 stop27h 35m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£361

LondonChicago

LHR London Heathrow - ORD Chicago O'Hare Intl

LHRORD

London Heathrow

Sun 24/1

20:05-16:15

1 stop26h 10m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£369

Flights are sorted by cheapest return flights first.

Deals found on 20/9

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.

EDI-ORD

BHX-ORD

BRS-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

BHX-ORD

BRS-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 £502). Flying from United Kingdom to Illinois in August is currently the most expensive (average of £808). 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 Wednesday (43 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (41 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

1,991 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

1,991 reviews

Scandinavian Airlines

7.4

Good

1,991 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

1,788 reviews

Scandinavian Airlines

7.4

Good

1,991 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

749 reviews

Scandinavian Airlines

7.4

Good

1,991 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

8,234 reviews

Scandinavian Airlines

7.4

Good

1,991 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

8,227 reviews

Scandinavian Airlines

7.4

Good

1,991 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 11h 25m. Scandinavian Airlines provides one of the quickest options available for as low as £481. 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 JetBlue and Aer Lingus, with prices starting from £314 and £319, 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 £502). Flying from United Kingdom to Illinois in August is currently the most expensive (average of £808). 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

Other flight options

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£205	Average£580	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
Virgin Atlantic	Cheapest£214	Average£730	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
Turkish Airlines	Cheapest£352	Average£701	FlexibilityNo cancel fee	On-time77%	Search Turkish Airlines flights
JetBlue	Cheapest£388	Average£655	FlexibilityNo cancel fee	On-time62%	Search JetBlue flights
Scandinavian Airlines	Cheapest£390	Average£542	FlexibilityNo cancel fee	On-time77%	Search Scandinavian Airlines flights
TAP AIR PORTUGAL	Cheapest£391	Average£587	FlexibilityNo cancel fee	On-timeN/A	Search TAP AIR PORTUGAL flights
Brussels Airlines	Cheapest£399	Average£673	FlexibilityNo cancel fee	On-timeN/A	Search Brussels Airlines flights
British Airways	Cheapest£422	Average£669	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Finnair	Cheapest£433	Average£720	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 £283

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/11. 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 24 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 24 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 24 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 24 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 24 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 24 September 2026.

Last-minute flights from United Kingdom to IllinoisDiscover last-minute flight deals from United Kingdom to Illinois. Data last updated 24 September 2026 and is based on user searches.

Discover last-minute flight deals from United Kingdom to Illinois. Data last updated 24 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 24 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 24 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 24 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 Wednesday (43 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (41 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 24 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

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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 24 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 24 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 24 September 2026.

Last-minute flights from United Kingdom to Illinois
Discover last-minute flight deals from United Kingdom to Illinois. Data last updated 24 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 24 September 2026.