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Cheap flights from Illinois to England from £183

ORD — LHR
1 Oct — 8 Oct1
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

Wed 2/1218:05 -
1 stop30h 45m
Wed 9/1209:45 -
1 stop20h 56m
Deal found 29/8£475
Sat 7/1116:26 -
1 stop33h 49m
Tue 17/1109:35 -
2 stops38h 05m
Deal found 28/8£478
Wed 11/1118:44 -
2 stops30h 06m
Thu 19/1111:00 -
1 stop18h 16m
Deal found 27/8£484
Tue 1/1218:05 -
1 stop30h 50m
Wed 9/1209:45 -
1 stop20h 56m
Deal found 30/8£484
Tue 1/1218:05 -
1 stop30h 50m
Tue 8/1209:35 -
1 stop21h 06m
Deal found 1/9£495
Sat 7/1116:26 -
1 stop33h 49m
Thu 19/1111:00 -
1 stop18h 16m
Deal found 27/8£502
Fri 6/1118:44 -
2 stops55h 31m
Thu 12/1111:00 -
1 stop18h 16m
Deal found 29/8£508
Mon 9/1118:44 -
2 stops30h 06m
Thu 19/1111:00 -
1 stop18h 16m
Deal found 27/8£511
Sat 7/1116:26 -
1 stop33h 49m
Wed 18/1109:50 -
2 stops31h 29m
Deal found 27/8£512
Wed 14/1019:15 -
1 stop14h 45m
Thu 22/1006:40 -
1 stop15h 30m
Deal found 31/8£520
Fri 27/1118:30 -
2 stops20h 35m
Fri 4/1221:45 -
2 stops25h 35m
Deal found 29/8£520
Mon 5/1019:15 -
1 stop14h 45m
Wed 21/1021:05 -
2 stops25h 05m
Deal found 30/8£521

Find flight deals from Illinois to England

Round-trip from

£475

One-way from

£183

Popular in

June

Cheapest in

February

Average price

£633

Good round-trip deal

£689 or less

Good one-way deal

£232 or less
2/12-9/12
  • 2/12-9/12
  • 2 total stops
  • 51h 41m total
  • Illinois to England
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30/9
  • 30/9
  • 2 total stops
  • 37h 31m total
  • Illinois to England
Search Deals
Highest demand for flights based on searches. 23% potential increase in price (£141 potential increase over avg. return price).
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Cheapest flight prices on average. 6% potential price decrease (£27 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2026
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Price to beat on a round-trip flight from Illinois to England.
Search Deals
Price to beat on a one-way flight from Illinois to England.
Search Deals

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 27/10

20:15-16:25

2 stops15h 10m

London Heathrow

Sun 8/11

21:05-16:45

2 stops25h 40m

£525

ChicagoLondon

ORD Chicago O'Hare Intl - LHR London Heathrow

ORDLHR

Chicago O'Hare Intl

Fri 6/11

19:15-16:00

1 stop14h 45m

London Heathrow

Tue 10/11

10:20-16:45

1 stop12h 25m

£527

ChicagoLondon

ORD Chicago O'Hare Intl - LTN London Luton

ORDLTN

Chicago O'Hare Intl

Mon 12/10

11:05-12:20

2 stops19h 15m

London Luton

Wed 28/10

06:50-21:05

2 stops19h 15m

£554

ChicagoLondon

ORD Chicago O'Hare Intl - LTN London Luton

ORDLTN

Chicago O'Hare Intl

Thu 8/10

18:00-23:00

2 stops23h 00m

London Luton

Tue 13/10

12:45-16:00

2 stops33h 15m

£562

ChicagoLondon

ORD Chicago O'Hare Intl - LGW London Gatwick

ORDLGW

Chicago O'Hare Intl

Fri 13/11

20:10-15:45

1 stop13h 35m

London Gatwick

Tue 17/11

21:20-15:30

2 stops24h 10m

£585

ChicagoLondon

ORD Chicago O'Hare Intl - LTN London Luton

ORDLTN

Chicago O'Hare Intl

Tue 27/10

19:30-17:40

2 stops17h 10m

London Luton

Sun 8/11

07:00-18:20

2 stops17h 20m

£585

ChicagoLondon

ORD Chicago O'Hare Intl - LHR London Heathrow

ORDLHR

Chicago O'Hare Intl

Sun 11/10

19:15-18:30

1 stop17h 15m

London Heathrow

Sun 18/10

21:05-16:10

2 stops25h 05m

£588

St. LouisLondon

STL Lambert-St Louis - LHR London Heathrow

STLLHR

Lambert-St Louis

Mon 11/1

17:20-10:25

1 stop11h 05m

London Heathrow

Wed 13/1

06:50-16:13

2 stops15h 23m

£592

ChicagoLondon

ORD Chicago O'Hare Intl - LTN London Luton

ORDLTN

Chicago O'Hare Intl

Wed 18/11

17:40-13:45

1 stop14h 05m

London Luton

Sun 22/11

21:45-17:20

2 stops25h 35m

£595

ChicagoLondon

ORD Chicago O'Hare Intl - LTN London Luton

ORDLTN

Chicago O'Hare Intl

Sat 24/10

19:30-14:05

1 stop12h 35m

London Luton

Thu 29/10

06:00-18:20

1 stop17h 20m

£599

Flights are sorted by cheapest return flights first.

Deals found on 27/8

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 £489). Flying from Illinois to England in June is currently the most expensive (average of £984). 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 Friday (54 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (42 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 £546 and £780 in October.
The cheapest return price found within the last 5 days was £520 on Scandinavian Airlines (14 Oct–22 Oct).

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

Booking 9 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, andIberia 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.
United Airlines
7.4
Good
10,154 reviews
Check prices

Crew

8.1

Entertainment

7.1

Comfort

7.3

Food

6.7

Overall

7.4

Boarding

7.7

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
United Airlines
7.4
Good
10,154 reviews
United Airlines
7.4
Good
10,154 reviews
Check prices

Crew

8.1

Entertainment

7.1

Comfort

7.3

Food

6.7

Overall

7.4

Boarding

7.7

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
Aer Lingus
7.3
Good
1,736 reviews
United Airlines
7.4
Good
10,154 reviews
Check prices

Crew

8.1

Entertainment

7.1

Comfort

7.3

Food

6.7

Overall

7.4

Boarding

7.7

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
Iberia
7.0
Good
3,245 reviews
United Airlines
7.4
Good
10,154 reviews
Check prices

Crew

8.1

Entertainment

7.1

Comfort

7.3

Food

6.7

Overall

7.4

Boarding

7.7

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
Icelandair
6.9
Okay
738 reviews
United Airlines
7.4
Good
10,154 reviews
Check prices

Crew

8.1

Entertainment

7.1

Comfort

7.3

Food

6.7

Overall

7.4

Boarding

7.7

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
British Airways
6.7
Okay
8,198 reviews
United Airlines
7.4
Good
10,154 reviews
Check prices

Crew

8.1

Entertainment

7.1

Comfort

7.3

Food

6.7

Overall

7.4

Boarding

7.7

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 05m. Scandinavian Airlines provides one of the quickest options available for as low as £592. Illinois and England are separated by a distance of 4186 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 £83. Aer Lingus flights start at £163 while deals on JetBlue start at £167 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 £489). Flying from Illinois to England in June is currently the most expensive (average of £984). 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

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John F Kennedy Intl to Gatwick flights
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Philadelphia to Heathrow flights
Boston to London City flights
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Denver to Heathrow flights
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John F Kennedy Intl to Edinburgh flights
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Los Angeles to London City flights
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O'Hare Intl to Gatwick flights
Raleigh to Heathrow flights
Detroit to Heathrow flights
O'Hare Intl to Stansted flights
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O'Hare Intl to London City flights
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Austin to Heathrow flights

Top 7 airlines flying from Illinois to England

AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£361Average£569FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
American AirlinesCheapest£382Average£817FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
British AirwaysCheapest£419Average£620FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Aer LingusCheapest£455Average£785FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
United AirlinesCheapest£503Average£861FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
IberiaCheapest£514Average£690FlexibilityNo cancel feeOn-time77%
Search Iberia flights
JetBlueCheapest£734Average£874FlexibilityNo 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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