Cheap flights from London to Illinois from £201
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 12/6. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
How far in advance should I book a flight from London to Illinois?
When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 28 days in advance, which can save you up to 8% on flights from London to Illinois compared to booking the week you need them. Waiting 28 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at £544. For sooner than that we have options available in the next 3 days from £559.
What is the cheapest month to fly from London to Illinois?
February is one of the best times of the year to fly to Illinois from London. Prices for February average £541 per person but you can even find prices for as low as £371. The most expensive prices can be found in the month of July. Opting for a February flight can save you 27% on your journey compared to booking in July
When is the cheapest time to fly from London to Illinois (LON - IL)?
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.
Cheap Finnair flights from London to Illinois
Explore cheap flight options specifically provided by Finnair for the route between London and Illinois. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 892,239 searches. Data last updated 5 May 2024.
Peruse some of the lowest-priced Finnair flights we've found from London to Illinois. Be sure to come back soon if the deals available don't appeal to you at this time.
Cheap British Airways flights from London to Illinois
Explore cheap flight options specifically provided by British Airways for the route between London and Illinois. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 892,239 searches. Data last updated 5 May 2024.
Some of the best deals we've found on British Airways flights travelling from London to Illinois. Make sure to examine the flight information before completing your reservation.
Cheap London to Illinois flights in May & June 2024
Find cheap flight options from London to Illinois specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 892,239 searches. Prices were last updated on 5 May 2024.
Listed are some of the best fares we've found on flights departing from London to Illinois in 2024. Check back regularly for other flight deals.
London to Illinois 2024 flight deals
Discover exclusive flight deals for travel between London and Illinois in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 892,239 searches. Data last updated 5 May 2024.
Listed are some of the best fares we've found on flights departing from London to Illinois in 2024. Check back regularly for other flight deals.
Direct flights to Illinois from London
Discover direct flight options from London to Illinois. Find direct flights with no stopovers, providing a convenient travel experience. Explore direct flight options based on user searches, and compare prices and availability for your desired travel dates. Over the last 7 days, Cheapflights users made 892,239 searches. Data last updated 5 May 2024.
Take a look at some of the direct flights travelling from London to Illinois in the near future. Select from other flights from London to Illinois by using the search form above.
London to Illinois flights leaving soon
Find last-minute flight options from London to Illinois for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 892,239 searches. Data last updated 5 May 2024.
Have a look at some of the flights available from London to Illinois departing last-minute. Tip: verify your flight details before completing your reservation.
One-way flights to Illinois from London
Search for one-way flight options from London to Illinois. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 892,239 searches. Data last updated 5 May 2024.
Take a look at some of the one-way flights we've detected from London to Illinois. Users in need of a round-trip flight from London to Illinois instead should update the search form at the top of page.
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 892,239 searches. Data last updated 5 May 2024.
Fly from
Fly to
Budget
£396 - £441
Route
Depart
Return
Price
London HeathrowChicago O'Hare Intl
LHR - ORD
LHRORD
London Heathrow
Mon 28/10
1 stop12h 45m
Chicago O'Hare Intl
Mon 4/11
1 stop14h 10m
London HeathrowChicago O'Hare Intl
LHR - ORD
LHRORD
London Heathrow
Tue 17/9
1 stop14h 05m
Chicago O'Hare Intl
Mon 23/9
1 stop13h 20m
London HeathrowChicago O'Hare Intl
LHR - ORD
LHRORD
London Heathrow
Wed 25/9
Nonstop8h 40m
Chicago O'Hare Intl
Wed 9/10
Nonstop7h 50m
London HeathrowChicago O'Hare Intl
LHR - ORD
LHRORD
London Heathrow
Mon 28/10
1 stop11h 50m
Chicago O'Hare Intl
Thu 7/11
1 stop11h 15m
London GatwickChicago O'Hare Intl
LGW - ORD
LGWORD
London Gatwick
Wed 25/9
1 stop15h 00m
Chicago O'Hare Intl
Wed 9/10
1 stop17h 00m
London HeathrowChicago O'Hare Intl
LHR - ORD
LHRORD
London Heathrow
Fri 13/9
1 stop14h 00m
Chicago O'Hare Intl
Sun 15/9
1 stop12h 45m
London HeathrowChicago O'Hare Intl
LHR - ORD
LHRORD
London Heathrow
Wed 18/9
1 stop14h 05m
Chicago O'Hare Intl
Wed 25/9
Nonstop7h 50m
London HeathrowChicago O'Hare Intl
LHR - ORD
LHRORD
London Heathrow
Wed 18/9
1 stop14h 05m
Chicago O'Hare Intl
Wed 25/9
Nonstop7h 50m
London HeathrowChicago O'Hare Intl
LHR - ORD
LHRORD
London Heathrow
Mon 9/9
Nonstop8h 55m
Chicago O'Hare Intl
Thu 3/10
Nonstop8h 05m
No data available for this route at this time. Please check back soon.
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 5 May 2024.
To help decide which airline to fly from London to Illinois, see what other customers have to say about Finnair, British Airways and Virgin Atlantic. 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.
Boarding
Comfort
Crew
Entertainment
Food
Overall
Reviews
When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
Boarding
Comfort
Crew
Entertainment
Food
Overall
Reviews
When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
Boarding
Comfort
Crew
Entertainment
Food
Overall
Reviews
When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
Boarding
Comfort
Crew
Entertainment
Food
Overall
Reviews
When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
Boarding
Comfort
Crew
Entertainment
Food
Overall
Reviews
When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
Boarding
Comfort
Crew
Entertainment
Food
Overall
Reviews
When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
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.
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Alternative routes for London to IllinoisSee prices for flight routes from nearby airports that may be better suited for you.
See prices for flight routes from nearby airports that may be better suited for you.
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 892,239 searches. Data last updated 5 May 2024.
Search flights from London to Illinois by cabin class
Find flights from London to Illinois, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Hourly flight availability from London to Illinois
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 5 May 2024.
| 0%of flight departures | Early morningMidnight to 6 am |
|---|---|
| 61%of flight departures | Morning6 am to noon |
| 39%of flight departures | AfternoonNoon to 6 pm |
| 0%of flight departures | Evening6 pm to midnight |
Book a flight to one of these trending destinations
User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations
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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.