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Cheap flights from Illinois to England from £240

ORD — LHR
8 Nov — 15 Nov1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Illinois to England

Enter your travel dates to find the best prices.

Cheapest flights from Illinois to England

Mon 9/1119:10 -
2 stops19h 30m
Wed 18/1111:10 -
2 stops35h 35m
Deal found 4/10£455
Sun 8/1119:10 -
2 stops35h 05m
Tue 17/1108:25 -
1 stop14h 20m
Deal found 4/10£466
Tue 3/1119:10 -
1 stop17h 25m
Wed 11/1108:25 -
1 stop14h 20m
Deal found 4/10£480
Tue 27/1019:30 -
1 stop12h 15m
Thu 5/1106:15 -
1 stop17h 05m
Deal found 5/10£492
Mon 30/1119:10 -
1 stop15h 50m
Wed 9/1208:25 -
1 stop14h 30m
Deal found 4/10£512
Mon 2/1119:10 -
1 stop17h 25m
Wed 11/1108:25 -
1 stop14h 20m
Deal found 4/10£527
Wed 11/1118:30 -
1 stop12h 20m
Fri 20/1106:10 -
1 stop17h 10m
Deal found 4/10£527
Sun 25/1020:10 -
1 stop12h 20m
Tue 10/1108:25 -
1 stop14h 20m
Deal found 4/10£530
Mon 2/1119:10 -
1 stop17h 25m
Tue 10/1108:25 -
1 stop14h 20m
Deal found 5/10£533
Tue 24/1118:30 -
3 stops21h 10m
Tue 1/1206:40 -
2 stops16h 40m
Deal found 8/10£546
Fri 25/1219:10 -
1 stop14h 50m
Mon 28/1210:20 -
1 stop12h 25m
Deal found 8/10£546
Tue 3/1119:10 -
1 stop16h 55m
Mon 9/1109:45 -
1 stop13h 00m
Deal found 8/10£546

Find flight deals from Illinois to England

Round-trip from

£455

One-way from

£240

Popular in

June

Cheapest in

February

Average price

£614

Good round-trip deal

£861 or less

Good one-way deal

£282 or less
9/11-18/11
  • 9/11-18/11
  • 4 total stops
  • 55h 05m total
  • Illinois to England
Icelandair
  • Icelandair
  • 26/10-31/12
  • 1 total stop
  • 10h 15m total
  • Illinois to England
Highest demand for flights based on searches. 21% potential increase in price (£136 potential increase over avg. return price).
Cheapest flight prices on average. 5% potential price decrease (£28 potential savings vs. average return price).
Average for round-trip flights in October 2026
Price to beat on a round-trip flight from Illinois to England.
Price to beat on a one-way flight from Illinois to England.

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

ChicagoLondon

ORD Chicago O'Hare Intl - LHR London Heathrow

ORDLHR

Chicago O'Hare Intl

Tue 6/4

18:40-09:00

Nonstop8h 20m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£246

ChicagoLondon

ORD Chicago O'Hare Intl - LHR London Heathrow

ORDLHR

Chicago O'Hare Intl

Sun 4/4

18:40-09:00

Nonstop8h 20m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£246

ChicagoLondon

ORD Chicago O'Hare Intl - LHR London Heathrow

ORDLHR

Chicago O'Hare Intl

Tue 9/2

15:45-05:55

Nonstop8h 10m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£246

ChicagoLondon

ORD Chicago O'Hare Intl - LHR London Heathrow

ORDLHR

Chicago O'Hare Intl

Thu 26/11

11:00-06:55

1 stop13h 55m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£249

ChicagoLondon

ORD Chicago O'Hare Intl - LGW London Gatwick

ORDLGW

Chicago O'Hare Intl

Tue 23/3

19:25-15:45

1 stop15h 20m

London Gatwick

Wed 31/12

00:00-17:00

Nonstop0h 00m

£249

ChicagoLondon

ORD Chicago O'Hare Intl - LGW London Gatwick

ORDLGW

Chicago O'Hare Intl

Mon 11/1

18:25-15:45

1 stop15h 20m

London Gatwick

Wed 31/12

00:00-17:00

Nonstop0h 00m

£249

ChicagoLondon

ORD Chicago O'Hare Intl - LHR London Heathrow

ORDLHR

Chicago O'Hare Intl

Wed 6/1

10:30-06:40

2 stops14h 10m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£249

ChicagoLondon

ORD Chicago O'Hare Intl - STN London Stansted

ORDSTN

Chicago O'Hare Intl

Thu 15/10

18:00-22:55

2 stops22h 55m

London Stansted

Wed 31/12

00:00-17:00

Nonstop0h 00m

£250

ChicagoLondon

ORD Chicago O'Hare Intl - LHR London Heathrow

ORDLHR

Chicago O'Hare Intl

Sat 6/3

21:25-21:20

2 stops17h 55m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£254

PeoriaLondon

PIA Greater Peoria - LHR London Heathrow

PIALHR

Greater Peoria

Mon 22/3

18:16-11:35

1 stop12h 19m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£268

Flights are sorted by cheapest return flights first.

Deals found on 9/10

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Illinois to England

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

Cheapflights Insights

Everything you need to know about your flight from Illinois to England

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

Currently, January is the cheapest month in which you can book a flight from Illinois to England (average of £487). Flying from Illinois to England in June is currently the most expensive (average of £1,010). 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 IL to ENG?

When flying from Illinois to England, 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 Illinois to England

The most flights from USIL to GBENG are scheduled on a Wednesday (56 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (33 on average).

How much does it cost for a return flight from Illinois to England?

Airfare is below average for this route at the moment.
Illinois to England flights typically cost between £547 and £722 in November.
The cheapest return price found within the last 5 days was £546 on Multiple Airlines (24 Nov–1 Dec).

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

Booking 65 days in advance of your planned departure date is, on average, the best time to get cheap flights from Illinois to England. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Reviews of airlines servicing England

See what other customers who have flown with United Airlines,Aer Lingus, andAmerican Airlines from Illinois to England have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.1

Food

6.7

Boarding

7.7

Overall

7.4

Comfort

7.3

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Dawn,Aug 2026

ORD - DEN

I missed my connecting flight because our plane took off ten minutes late and then when we got to the airport another plane was in our shoot waiting to get fueled up and that took 30 minutes so I missed my connecting flight. I asked if I could get off and they assured me the plane would most likely wait for me since they know what time the planes get in because of an app. I was not happy. I had to wait till 7:25 to board the next flight and then that was delayed. Gates changed till 9:20. Terrible

Crew

8.1

Food

6.7

Boarding

7.7

Overall

7.4

Comfort

7.3

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Dawn,Aug 2026

ORD - DEN

I missed my connecting flight because our plane took off ten minutes late and then when we got to the airport another plane was in our shoot waiting to get fueled up and that took 30 minutes so I missed my connecting flight. I asked if I could get off and they assured me the plane would most likely wait for me since they know what time the planes get in because of an app. I was not happy. I had to wait till 7:25 to board the next flight and then that was delayed. Gates changed till 9:20. Terrible

Crew

8.1

Food

6.7

Boarding

7.7

Overall

7.4

Comfort

7.3

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Dawn,Aug 2026

ORD - DEN

I missed my connecting flight because our plane took off ten minutes late and then when we got to the airport another plane was in our shoot waiting to get fueled up and that took 30 minutes so I missed my connecting flight. I asked if I could get off and they assured me the plane would most likely wait for me since they know what time the planes get in because of an app. I was not happy. I had to wait till 7:25 to board the next flight and then that was delayed. Gates changed till 9:20. Terrible

Crew

8.1

Food

6.7

Boarding

7.7

Overall

7.4

Comfort

7.3

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Dawn,Aug 2026

ORD - DEN

I missed my connecting flight because our plane took off ten minutes late and then when we got to the airport another plane was in our shoot waiting to get fueled up and that took 30 minutes so I missed my connecting flight. I asked if I could get off and they assured me the plane would most likely wait for me since they know what time the planes get in because of an app. I was not happy. I had to wait till 7:25 to board the next flight and then that was delayed. Gates changed till 9:20. Terrible

Crew

8.1

Food

6.7

Boarding

7.7

Overall

7.4

Comfort

7.3

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Dawn,Aug 2026

ORD - DEN

I missed my connecting flight because our plane took off ten minutes late and then when we got to the airport another plane was in our shoot waiting to get fueled up and that took 30 minutes so I missed my connecting flight. I asked if I could get off and they assured me the plane would most likely wait for me since they know what time the planes get in because of an app. I was not happy. I had to wait till 7:25 to board the next flight and then that was delayed. Gates changed till 9:20. Terrible

Crew

8.1

Food

6.7

Boarding

7.7

Overall

7.4

Comfort

7.3

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Dawn,Aug 2026

ORD - DEN

I missed my connecting flight because our plane took off ten minutes late and then when we got to the airport another plane was in our shoot waiting to get fueled up and that took 30 minutes so I missed my connecting flight. I asked if I could get off and they assured me the plane would most likely wait for me since they know what time the planes get in because of an app. I was not happy. I had to wait till 7:25 to board the next flight and then that was delayed. Gates changed till 9:20. Terrible

Related info for your journey

  • How long is the flight from Illinois to England?

    A quick flight from Illinois to England can take about 11h 15m. Scandinavian Airlines provides one of the quickest options available for as low as £586. Illinois and England are separated by a distance of 3939 mi. This flight may include one or multiple stops.

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

    To fly one-way, consider booking your trip with Icelandair, which is currently one of the cheapest options available, starting at £85. Aer Lingus flights start at £167 while deals on JetBlue start at £232 one-way.

  • Can I find deals for flights from Illinois to England that include hotel bookings?

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

  • How can I find direct flights from Illinois to England?

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

  • Can I find deals for business class flights from Illinois to England?

    Yes. Cheapflights offers flight deals from Illinois to England 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 Illinois to England?

    Currently, January is the cheapest month in which you can book a flight from Illinois to England (average of £487). Flying from Illinois to England in June is currently the most expensive (average of £1,010). 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

Alternative routes for Illinois to England

Top 7 airlines flying from Illinois to England

AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£370Average£584FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
British AirwaysCheapest£460Average£740FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Aer LingusCheapest£467Average£805FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
American AirlinesCheapest£497Average£867FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapest£516Average£927FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
IberiaCheapest£527Average£707FlexibilityNo cancel feeOn-time77%
Search Iberia flights
JetBlueCheapest£753Average£896FlexibilityNo cancel feeOn-time62%
Search JetBlue flights

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How does Cheapflights help users find flights from Illinois to England?

Cheapflights makes it easy to find Illinois to England flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Illinois to England.

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

Yes! Cheapflights helps users easily find flights from Illinois to England with no change fees.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to England from Illinois today and book when prices fit your budget.

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