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Cheap flights from London to Illinois from £264

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 20/2. Fares are subject to change and may not be available on all flights or dates of travel.
LON — ORD
26 Nov — 3 Dec1
1 adult

Find flights from London to Illinois within your budget

Customise your flight search to find flights from London to Illinois that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 939,815 searches. Data last updated 21 November 2024.

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Route

Depart

Return

Price

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Thu 5/12

15:55-15:30

1 stop29h 35m

Chicago O'Hare Intl

Sun 8/12

20:25-15:45

1 stop13h 20m

£444

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Mon 13/1

06:40-15:50

1 stop15h 10m

Chicago O'Hare Intl

Mon 27/1

19:10-17:00

2 stops15h 50m

£444

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Fri 7/2

11:55-17:20

1 stop11h 25m

Chicago O'Hare Intl

Thu 24/4

19:30-14:40

1 stop13h 10m

£447

LondonChicago

LTN - ORD

LTNORD

London Luton

Thu 16/1

07:05-17:20

2 stops16h 15m

Chicago O'Hare Intl

Wed 22/1

18:30-21:40

2 stops21h 10m

£449

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Tue 18/3

06:10-15:30

1 stop14h 20m

Chicago O'Hare Intl

Mon 24/3

15:00-10:15

1 stop14h 15m

£450

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Mon 27/1

14:00-16:08

1 stop32h 08m

Chicago O'Hare Intl

Thu 6/2

12:17-10:00

1 stop15h 43m

£452

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Thu 5/12

08:50-14:00

1 stop11h 10m

Chicago O'Hare Intl

Sun 15/12

15:55-08:05

1 stop10h 10m

£453

LondonChicago

LHR - MDW

LHRMDW

London Heathrow

Mon 17/2

06:30-18:14

2 stops17h 44m

Chicago Midway

Thu 27/2

14:08-06:50

1 stop10h 42m

£453

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Wed 23/4

06:00-16:10

1 stop16h 10m

Chicago O'Hare Intl

Wed 30/4

18:00-22:00

1 stop22h 00m

£462

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Wed 12/2

11:45-19:20

1 stop13h 35m

Chicago O'Hare Intl

Tue 18/2

18:25-08:15

Nonstop7h 50m

£470

Flights are sorted by cheapest return flights first.

Deals found on 18/11

Showing 1-10 of 60 results
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Cheap flight deals from London to Illinois

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to Illinois (USIL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 21 November 2024.

Find flight deals from London to Illinois

Cheapest flights from London to Illinois
Explore the most affordable flight options available from London to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 November 2024.

Thu 5/1215:55LGW - ORD
1 stop29h 35mTAP AIR PORTUGAL
Sun 8/1220:25ORD - LGW
1 stop13h 20mTAP AIR PORTUGAL
Deal found 20/11£444
Thu 5/1208:50LHR - ORD
1 stop11h 10mAer Lingus
Sun 15/1215:55ORD - LHR
1 stop10h 10mAer Lingus
Deal found 20/11£453
Thu 5/1211:55LGW - ORD
1 stop11h 25mIcelandair
Sun 8/1218:30ORD - LGW
1 stop10h 25mIcelandair
Deal found 20/11£457
Wed 11/1206:00LHR - ORD
1 stop15h 30mTAP AIR PORTUGAL
Wed 15/119:15ORD - LHR
1 stop21h 25mTAP AIR PORTUGAL
Deal found 20/11£463
Sat 7/1206:40LHR - ORD
2 stops21h 03mScandinavian Airlines
Sat 14/1219:10ORD - LHR
1 stop14h 50mScandinavian Airlines
Deal found 20/11£473
Wed 11/1220:40LHR - ORD
1 stop26h 40mIcelandair
Tue 17/1218:30ORD - LHR
1 stop19h 00mIcelandair
Deal found 20/11£476
Mon 30/1209:30LHR - ORD
1 stop16h 14mAmerican Airlines
Wed 29/115:00ORD - LHR
1 stop13h 15mAmerican Airlines
Deal found 20/11£480
Tue 26/1106:50LHR - ORD
1 stop11h 25mLufthansa
Sat 30/1120:25ORD - LHR
1 stop28h 05mLufthansa
Deal found 20/11£483
Tue 3/1209:55LHR - ORD
2 stops34h 10mMultiple Airlines
Tue 10/1215:35ORD - LHR
2 stops22h 30mMultiple Airlines
Deal found 19/11£484
Wed 11/1208:40LHR - MDW
2 stops15h 52mDelta
Wed 15/110:57MDW - LHR
1 stop13h 23mDelta
Deal found 20/11£485
Thu 5/1214:00LGW - ORD
1 stop34h 50mMultiple Airlines
Sun 8/1219:45ORD - LGW
1 stop32h 15mMultiple Airlines
Deal found 20/11£489
Wed 4/1211:00STN - ORD
3 stops35h 06mMultiple Airlines
Fri 6/1219:45ORD - STN
3 stops32h 15mMultiple Airlines
Deal found 20/11£493

Best time to book a flight from London to Illinois

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

Travel insights for flights from London to Illinois

Get recent, data-driven insights about flights from London to Illinois including ideal travel times, pricing trends, and more.

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

Currently, January is the cheapest month in which you can book a flight from London to Illinois (average of £598). Flying from London to Illinois in July is currently the most expensive (average of £774). 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 LON to IL?

Find hourly flight availability from London 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 21 November 2024.

When flying from London 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 London to Illinois

Explore weekly flight availability from London to Illinois. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 21 November 2024.

The most flights from LON to USIL are scheduled on a Monday (36 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (30 on average).

Rainfall in Illinois by month

Plan your trip to Illinois by taking into account the average rainfall totals by month.

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.

Temperature in Illinois by month

Plan your trip to Illinois by taking into account the average temperature totals by month.

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).

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Illinois. Reviews last updated 21 November 2024.
To help decide which airline to fly from London to Illinois, see what other customers have to say about Delta, TAP AIR PORTUGAL and Scandinavian Airlines. 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.
Emirates
8.1
Very Good
3,486 reviews
Check prices

Entertainment

8.2

Comfort

8.0

Food

7.9

Overall

8.1

Crew

8.3

Boarding

8.1

Reviews

1 / 10

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.

Emirates
8.1
Very Good
3,486 reviews
Emirates
8.1
Very Good
3,486 reviews
Check prices

Entertainment

8.2

Comfort

8.0

Food

7.9

Overall

8.1

Crew

8.3

Boarding

8.1

Reviews

1 / 10

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.

Delta
8.0
Very Good
8,756 reviews
Emirates
8.1
Very Good
3,486 reviews
Check prices

Entertainment

8.2

Comfort

8.0

Food

7.9

Overall

8.1

Crew

8.3

Boarding

8.1

Reviews

1 / 10

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.

KLM
7.8
Good
1,350 reviews
Emirates
8.1
Very Good
3,486 reviews
Check prices

Entertainment

8.2

Comfort

8.0

Food

7.9

Overall

8.1

Crew

8.3

Boarding

8.1

Reviews

1 / 10

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.

Finnair
7.7
Good
1,300 reviews
Emirates
8.1
Very Good
3,486 reviews
Check prices

Entertainment

8.2

Comfort

8.0

Food

7.9

Overall

8.1

Crew

8.3

Boarding

8.1

Reviews

1 / 10

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.

LOT
7.6
Good
1,165 reviews
Emirates
8.1
Very Good
3,486 reviews
Check prices

Entertainment

8.2

Comfort

8.0

Food

7.9

Overall

8.1

Crew

8.3

Boarding

8.1

Reviews

1 / 10

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.

Related info for your journey

Find useful and relevant information for your journey from London to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    For one-way options, check prices for Icelandair. According to our data, you can fly for as low as £419. Users have also found prices from £425 and £427 on Aer Lingus and TAP AIR PORTUGAL, respectively.

  • What are the most popular routes from London to Illinois?

    While some choose either London Gatwick - Chicago O'Hare Intl or London City - Chicago O'Hare Intl, London Heathrow - Chicago O'Hare Intl is the most popular route from London to Illinois.

  • What are the most reliable airlines from London to Illinois?

    Before booking your flight to Illinois from London, check out the most reliable airlines to get you to your destination on time: Malaysia Airlines (89%), Air Canada (84%), Austrian Airlines( 84%).

  • What are the cheapest flights from London to Illinois?

    Looking for the cheapest flight from London to Illinois? While on average our users pay £1,407, our data indicates the cheapest price to be £512. The most popular route (London Heathrow - Chicago O'Hare Intl), is priced around £369.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from London to Illinois (average of £598). Flying from London to Illinois in July is currently the most expensive (average of £774). 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

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Alternative routes for London to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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Heathrow to Newark flights
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Stansted to Newark flights
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London City to Orlando flights
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London City to Boston flights
Gatwick to Stewart flights
Heathrow to Denver flights
Edinburgh to Newark flights
London City to Dulles Intl flights
Stansted to Boston flights
Gatwick to San Francisco flights

Top 10 airlines flying from London to Illinois

Discover the top 10 airlines that operate flights from London to Illinois. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 939,815 searches. Data last updated 21 November 2024.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£335Average£502FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Scandinavian AirlinesCheapest£375Average£509FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
TAP AIR PORTUGALCheapest£386Average£554FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Virgin AtlanticCheapest£396Average£565FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
British AirwaysCheapest£424Average£674FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LufthansaCheapest£429Average£572FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
KLMCheapest£437Average£744FlexibilityNo cancel feeOn-time75%
Search KLM flights
United AirlinesCheapest£449Average£618FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Aer LingusCheapest£450Average£595FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
Austrian AirlinesCheapest£455Average£599FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from London 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 London today with Cheapflights!

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

Cheapflights simply makes it quick and affordable to book flights from London to Illinois by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Certainly. Search results for flights to Illinois from London shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

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

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