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Cheap flights from London to Illinois from £270

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 5/12. Fares are subject to change and may not be available on all flights or dates of travel.
LON — ORD
23 Oct — 30 Oct1
1 adult

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 18 October 2024.

Thu 21/1121:05LHR - ORD
2 stops24h 45mScandinavian Airlines
Mon 2/1219:10ORD - LHR
1 stop14h 50mScandinavian Airlines
Deal found 17/10£426
Mon 11/1112:00LGW - ORD
2 stops31h 44mMultiple Airlines
Fri 15/1111:10ORD - LGW
1 stop12h 50mMultiple Airlines
Deal found 17/10£428
Tue 5/1111:55LGW - ORD
1 stop11h 25mIcelandair
Wed 13/1118:30ORD - LGW
1 stop10h 25mIcelandair
Deal found 17/10£432
Wed 6/1108:25LHR - ORD
1 stop13h 43mJetBlue
Wed 13/1109:15ORD - LHR
1 stop14h 40mJetBlue
Deal found 16/10£437
Tue 12/1108:50LHR - ORD
1 stop11h 10mAer Lingus
Wed 20/1115:55ORD - LHR
1 stop11h 10mAer Lingus
Deal found 17/10£438
Wed 27/1106:00LHR - ORD
1 stop15h 30mTAP AIR PORTUGAL
Wed 11/1219:15ORD - LHR
1 stop14h 15mTAP AIR PORTUGAL
Deal found 17/10£439
Tue 12/1120:40LHR - ORD
1 stop26h 40mIcelandair
Mon 18/1118:30ORD - LHR
1 stop10h 20mIcelandair
Deal found 17/10£441
Sat 23/1114:00LGW - MDW
1 stop24h 05mMultiple Airlines
Fri 6/1207:25MDW - LGW
1 stop20h 35mMultiple Airlines
Deal found 17/10£445
Tue 5/1119:50LHR - ORD
2 stops33h 47mMultiple Airlines
Wed 13/1107:00ORD - LHR
2 stops23h 55mMultiple Airlines
Deal found 17/10£446
Mon 2/1216:30LHR - ORD
1 stop27h 55mFinnair
Wed 18/1215:59ORD - LHR
1 stop12h 01mFinnair
Deal found 17/10£453
Thu 21/1115:55LGW - ORD
1 stop29h 35mTAP AIR PORTUGAL
Sun 1/1220:25ORD - LGW
2 stops18h 15mTAP AIR PORTUGAL
Deal found 17/10£457
Wed 20/1113:35LHR - ORD
Nonstop9h 25mLufthansa
Mon 25/1117:50ORD - LHR
Nonstop8h 05mLufthansa
Deal found 17/10£478

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 1,032,784 searches. Data last updated 18 October 2024.

Fly from

Any airport

Fly to

Any airport

Budget

£325 - £495

Route

Depart

Return

Price

London GatwickChicago O'Hare Intl

LGW - ORD

LGWORD

London Gatwick

Fri 17/1

1 stop11h 25m

Chicago O'Hare Intl

Sat 25/1

1 stop10h 25m

£325

London HeathrowChicago O'Hare Intl

LHR - ORD

LHRORD

London Heathrow

Fri 17/1

1 stop25h 20m

Chicago O'Hare Intl

Sun 26/1

1 stop14h 50m

£348

London HeathrowChicago O'Hare Intl

LHR - ORD

LHRORD

London Heathrow

Tue 5/11

1 stop27h 00m

Chicago O'Hare Intl

Wed 13/11

1 stop14h 15m

£370

London GatwickChicago O'Hare Intl

LGW - ORD

LGWORD

London Gatwick

Thu 5/12

2 stops30h 35m

Chicago O'Hare Intl

Wed 11/12

2 stops19h 00m

£387

London HeathrowChicago O'Hare Intl

LHR - ORD

LHRORD

London Heathrow

Wed 6/11

1 stop13h 43m

Chicago O'Hare Intl

Wed 13/11

1 stop14h 40m

£437

London HeathrowChicago O'Hare Intl

LHR - ORD

LHRORD

London Heathrow

Tue 12/11

1 stop11h 10m

Chicago O'Hare Intl

Wed 20/11

1 stop11h 10m

£438

London HeathrowChicago O'Hare Intl

LHR - ORD

LHRORD

London Heathrow

Mon 2/12

1 stop27h 55m

Chicago O'Hare Intl

Wed 18/12

Nonstop7h 45m

£453

London HeathrowChicago O'Hare Intl

LHR - ORD

LHRORD

London Heathrow

Wed 20/11

Nonstop9h 25m

Chicago O'Hare Intl

Mon 25/11

Nonstop8h 05m

£478

London HeathrowChicago O'Hare Intl

LHR - ORD

LHRORD

London Heathrow

Fri 1/11

Nonstop9h 25m

Chicago O'Hare Intl

Sat 2/11

1 stop16h 45m

£482

London HeathrowChicago O'Hare Intl

LHR - ORD

LHRORD

London Heathrow

Mon 18/11

1 stop14h 05m

Chicago O'Hare Intl

Mon 2/12

Nonstop8h 05m

£490

London HeathrowChicago O'Hare Intl

LHR - ORD

LHRORD

London Heathrow

Mon 18/11

Nonstop8h 50m

Chicago O'Hare Intl

Mon 2/12

Nonstop7h 35m

£494

London HeathrowChicago O'Hare Intl

LHR - ORD

LHRORD

London Heathrow

Thu 21/11

1 stop13h 35m

Chicago O'Hare Intl

Tue 26/11

1 stop10h 35m

£495

Flights are sorted by cheapest first

Deals found on 17/10

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 £601). Flying from London to Illinois in July is currently the most expensive (average of £775). 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 18 October 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 18 October 2024.

The most flights from LON to USIL are scheduled on a Monday (60 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (60 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 18 October 2024.
To help decide which airline to fly from London to Illinois, see what other customers have to say about Icelandair, Scandinavian Airlines and JetBlue. 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.
Delta
8.0
Very Good
8,911 reviews
Check prices

Entertainment

8.0

Comfort

7.9

Food

7.4

Overall

8.0

Crew

8.6

Boarding

8.2

Reviews

1 / 10

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.

Delta
8.0
Very Good
8,911 reviews
Delta
8.0
Very Good
8,911 reviews
Check prices

Entertainment

8.0

Comfort

7.9

Food

7.4

Overall

8.0

Crew

8.6

Boarding

8.2

Reviews

1 / 10

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.

KLM
7.8
Good
1,361 reviews
Delta
8.0
Very Good
8,911 reviews
Check prices

Entertainment

8.0

Comfort

7.9

Food

7.4

Overall

8.0

Crew

8.6

Boarding

8.2

Reviews

1 / 10

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.

Finnair
7.7
Good
1,322 reviews
Delta
8.0
Very Good
8,911 reviews
Check prices

Entertainment

8.0

Comfort

7.9

Food

7.4

Overall

8.0

Crew

8.6

Boarding

8.2

Reviews

1 / 10

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.

Austrian Airlines
7.7
Good
844 reviews
Delta
8.0
Very Good
8,911 reviews
Check prices

Entertainment

8.0

Comfort

7.9

Food

7.4

Overall

8.0

Crew

8.6

Boarding

8.2

Reviews

1 / 10

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.

SWISS
7.6
Good
1,652 reviews
Delta
8.0
Very Good
8,911 reviews
Check prices

Entertainment

8.0

Comfort

7.9

Food

7.4

Overall

8.0

Crew

8.6

Boarding

8.2

Reviews

1 / 10

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.

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.

  • Can I find flights from London to Illinois for under £400 on Cheapflights?

    Yes, there are multiple flights from London to Illinois for under £400. The cheapest flight booked recently is on Icelandair for just £325, but on average you can expect to pay £439.

  • Are there nonstop flights from London to Illinois for under £500 on Cheapflights?

    Cheapflights has at least 9 direct flights from London to Illinois under £500. A good price for a nonstop flight from London to Illinois is less than £500.

  • Are there last-minute flights available from London to Illinois for under £600?

    There are currently 20+ open flights from London to Illinois within the next 7 days for less than £600.

  • What days are direct flights available from London to Illinois?

    You can find direct flights on the following days: Tuesday.

  • How many flights depart from London to Illinois on average per day?

    2 flight departures from London to Illinois per day on average.
    Afternoon (Midday - 6pm) - 100% of flight departures

  • How long is the flight from London to Illinois?

    There are many flights that can get you from London to Illinois in 11h 25m. Fly via Icelandair, Scandinavian Airlines, or TAP AIR PORTUGAL to get the fastest option. Airlines will cover a distance of 3964 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • 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 £377. Users have also found prices from £382 and £399 on Aer Lingus and Scandinavian Airlines, 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 (97%), SWISS (82%), Air Canada( 81%).

  • What are the cheapest flights from London to Illinois?

    Looking for the cheapest flight from London to Illinois? While on average our users pay £1,539, our data indicates the cheapest price to be £436. The most popular route (London Heathrow - Chicago O'Hare Intl), is priced around £348.

  • What does LHR to ORD mean?

    LHR stands for London Heathrow Airport, while ORD stands for Chicago O'Hare Intl Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry. Chicago Midway Airport (MDW), Moline Quad-City Airport (MLI), Greater Peoria Airport (PIA), Bloomington-Normal Airport (BMI), Champaign University-Willard Airport (CMI) are some additional IATA codes for airports related to your trip.

  • Can I find deals for flights from London to Illinois that include extra baggage allowance?

    The amount of baggage you can bring on your London to Illinois flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from London to Illinois with specific airlines?

    Yes, Cheapflights allows you to browse and filter London to Illinois flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • 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.

  • Can I find deals for flights from London to Illinois that allow pets onboard?

    Many airlines flying from London to Illinois offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from London to Illinois?

    Yes, you can often find last-minute deals on London to Illinois flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the London to Illinois flight deals updated?

    The London to Illinois flight deals you see on this page were last updated on 17/10.

  • 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 £601). Flying from London to Illinois in July is currently the most expensive (average of £775). 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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Stansted to Newark flights
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London City to Boston flights
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Gatwick to Stewart flights
London City to Orlando flights
Manchester to Orlando flights
Edinburgh to Newark flights
London City to Dulles Intl flights
Heathrow to Atlanta flights
Heathrow to Reagan-National flights
Gatwick to Dulles Intl flights
Stansted to Boston flights
Heathrow to George Bush Intcntl flights
London City to Las Vegas flights
Gatwick to Baltimore flights
Heathrow to Denver 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 1,032,784 searches. Data last updated 18 October 2024.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£329Average£492FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Scandinavian AirlinesCheapest£365Average£485FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
TAP AIR PORTUGALCheapest£374Average£492FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Virgin AtlanticCheapest£376Average£535FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Brussels AirlinesCheapest£405Average£526FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
British AirwaysCheapest£412Average£632FlexibilityNo cancel feeOn-time70%
Search British Airways flights
FinnairCheapest£416Average£642FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Aer LingusCheapest£417Average£556FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
LufthansaCheapest£424Average£536FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
KLMCheapest£426Average£725FlexibilityNo cancel feeOn-time75%
Search KLM 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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