Cheap flights from London Luton Airport to Illinois from £392
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 30/11. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap flight deals from Luton to Illinois
Keep the following information in mind while searching for Luton to Illinois flight deals. Data was last updated 30 June 2025.
Find flight deals from Luton to Illinois
Cheapest flights from Luton to IllinoisExplore the most affordable flight options available from Luton to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 June 2025.
Explore the most affordable flight options available from Luton to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 June 2025.
Cheapflights Fare Finder
Customise your flight search to find flights from Luton 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 858,174 searches. Data last updated 30 June 2025.
Use the filters below to find and compare flights from London Luton Airport to Illinois that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
LondonChicago
LTN - ORD
LTNORD
London Luton
Fri 22/8
13:30-16:30
2 stops33h 00m
Chicago O'Hare Intl
Mon 25/8
18:10-21:25
2 stops21h 15m
LondonSt. Louis
LTN - STL
LTNSTL
London Luton
Thu 21/8
06:05-13:32
3 stops37h 27m
Lambert-St Louis
Sun 31/8
14:30-22:05
3 stops25h 35m
LondonChicago
LTN - ORD
LTNORD
London Luton
Sun 30/11
06:00-17:20
1 stop17h 20m
LondonSt. Louis
LTN - STL
LTNSTL
London Luton
Sun 9/11
06:00-07:49
3 stops31h 49m
Best time to book a flight from Luton to Illinois
Have a flexible travel schedule? Discover the best time to fly to Illinois from Luton with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from London Luton Airport to Illinois
What is the cheapest time of day to fly from LTN to IL?
Find hourly flight availability from Luton 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 30 June 2025.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London Luton Airport to Illinois as you normally would.
Related info for your journey
Find useful and relevant information for your journey from Luton 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 Luton to Illinois
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How does Cheapflights help users find flights from Luton to Illinois?
Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Luton to Illinois. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.
Why should you use Cheapflights to find cheap flight tickets from Luton to Illinois?
Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Luton to Illinois for you. Better yet — we are completely free to use.
Can Cheapflights find flights from Luton to Illinois with no change fees?
Yes! Cheapflights helps users easily find flights from Luton to Illinois with no change fees.
Can Cheapflights notify me if prices for flights from Luton to Illinois become cheaper?
Yes! Start tracking prices for Luton to Illinois flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.