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Cheap flights from London Luton Airport to Illinois from £407

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 22/2. Fares are subject to change and may not be available on all flights or dates of travel.
LTN — ORD
27 Dec — 3 Jan1
1 adult
1 adult, Economy, 0 bags

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 27 November 2025.

Round-trip from

£431

One-way from

£407

Popular in

July

Cheapest in

February

Average price

£476
7/2-15/2
  • 7/2-15/2
  • 4 total stops
  • 46h 45m total
  • London to Illinois
Search Deals
22/2
  • 22/2
  • 1 total stop
  • 17h 20m total
  • London to Illinois
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£60 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Find flight deals from Luton to Illinois

Enter your travel dates to find the best prices.

Cheapest flights from Luton to Illinois
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 27 November 2025.

Tue 9/1209:00LTN - ORD
2 stops14h 20mMultiple Airlines
Tue 16/1218:30ORD - LTN
2 stops19h 35mMultiple Airlines
Deal found 23/11£433
Fri 5/1205:50LTN - ORD
2 stops17h 30mMultiple Airlines
Sun 7/1218:30ORD - LTN
2 stops21h 30mMultiple Airlines
Deal found 25/11£445
Tue 2/1209:00LTN - ORD
2 stops35h 20mMultiple Airlines
Tue 9/1217:20ORD - LTN
2 stops20h 45mMultiple Airlines
Deal found 24/11£463
Thu 18/1209:00LTN - ORD
2 stops14h 20mMultiple Airlines
Tue 6/118:30ORD - LTN
2 stops19h 35mMultiple Airlines
Deal found 25/11£470
Wed 3/1206:50LTN - ORD
1 stop13h 10mMultiple Airlines
Mon 15/1215:50ORD - LTN
1 stop10h 45mMultiple Airlines
Deal found 26/11£500
Sun 28/1208:05LTN - ORD
1 stop11h 55mMultiple Airlines
Fri 9/121:00ORD - LTN
1 stop17h 10mMultiple Airlines
Deal found 26/11£513
Fri 5/1205:50LTN - ORD
1 stop14h 10mMultiple Airlines
Mon 8/1215:50ORD - LTN
1 stop10h 45mMultiple Airlines
Deal found 25/11£515
Thu 4/1209:00LTN - ORD
1 stop11h 00mMultiple Airlines
Wed 10/1215:50ORD - LTN
1 stop10h 45mMultiple Airlines
Deal found 23/11£521
Thu 4/1209:00LTN - ORD
1 stop14h 55mMultiple Airlines
Mon 8/1215:50ORD - LTN
1 stop10h 45mMultiple Airlines
Deal found 25/11£536
Wed 24/1206:50LTN - ORD
1 stop13h 10mMultiple Airlines
Wed 31/1215:50ORD - LTN
1 stop10h 45mMultiple Airlines
Deal found 25/11£546
Thu 18/1213:10LTN - STL
3 stops30h 45mMultiple Airlines
Wed 7/116:05STL - LTN
3 stops23h 40mMultiple Airlines
Deal found 26/11£1,326
Tue 23/1214:00LTN - STL
2 stops29h 55mMultiple Airlines
Tue 30/1216:05STL - LTN
3 stops25h 05mMultiple Airlines
Deal found 25/11£1,465

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 27 November 2025.
Use the filters below to find and compare flights from London Luton Airport to Illinois that are best for you.

Fly from

Luton

Fly to

Illinois

Route

Depart

Return

Price

LondonChicago

LTN - ORD

LTNORD

London Luton

Sat 7/2

21:00-16:55

2 stops25h 55m

Chicago O'Hare Intl

Sun 15/2

19:10-22:00

2 stops20h 50m

£431

LondonChicago

LTN - ORD

LTNORD

London Luton

Mon 26/1

13:50-19:15

1 stop11h 25m

Chicago O'Hare Intl

Fri 30/1

21:00-16:15

1 stop13h 15m

£461

LondonChicago

LTN - ORD

LTNORD

London Luton

Thu 18/12

09:00-17:20

2 stops14h 20m

Chicago O'Hare Intl

Tue 6/1

18:30-20:05

2 stops19h 35m

£470

LondonChicago

LTN - ORD

LTNORD

London Luton

Mon 12/1

13:50-19:15

1 stop11h 25m

Chicago O'Hare Intl

Fri 16/1

21:00-15:25

1 stop12h 25m

£492

LondonChicago

LTN - ORD

LTNORD

London Luton

Sat 17/1

12:25-19:15

1 stop12h 50m

Chicago O'Hare Intl

Sat 24/1

21:00-20:15

1 stop17h 15m

£509

LondonChicago

LTN - ORD

LTNORD

London Luton

Sun 28/12

08:05-14:00

1 stop11h 55m

Chicago O'Hare Intl

Fri 9/1

21:00-20:10

1 stop17h 10m

£513

LondonChicago

LTN - ORD

LTNORD

London Luton

Wed 18/2

14:40-16:45

2 stops32h 05m

Chicago O'Hare Intl

Fri 27/2

19:20-21:55

2 stops20h 35m

£526

LondonChicago

LTN - ORD

LTNORD

London Luton

Wed 11/2

08:30-20:00

1 stop17h 30m

Chicago O'Hare Intl

Wed 18/2

21:55-18:15

1 stop14h 20m

£529

LondonChicago

LTN - ORD

LTNORD

London Luton

Mon 13/4

08:15-17:45

2 stops15h 30m

Chicago O'Hare Intl

Mon 27/4

19:25-22:50

3 stops21h 25m

£545

LondonChicago

LTN - ORD

LTNORD

London Luton

Thu 7/5

17:30-16:00

2 stops28h 30m

Chicago O'Hare Intl

Tue 12/5

12:00-15:30

2 stops21h 30m

£556

Flights are sorted by cheapest return flights first.

Deals found on 26/11

Showing 1-10 of 31 results
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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.
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.

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 27 November 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 23% on flights from London Luton Airport to Illinois by exploring options for tickets at midday.

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.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Luton 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.

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Luton to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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How does Cheapflights help users find flights from Luton to Illinois?

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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.

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