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Cheap flights from London Luton Airport to Illinois from £395

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 23/12. Fares are subject to change and may not be available on all flights or dates of travel.
LTN — ORD
17 Oct — 24 Oct1
1 adult
1 adult, Economy

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 17 September 2025.

Round-trip from

£395

One-way from

£395

Popular in

July

Cheapest in

February

Average price

£435
14/10-21/10
  • 14/10-21/10
  • 2 total stops
  • 26h 40m total
  • London to Illinois
Search Deals
23/12
  • 23/12
  • 2 total stops
  • 48h 25m total
  • London to Illinois
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£61 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£10 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find flight deals from Luton to Illinois

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 17 September 2025.

Tue 14/1010:00LTN - ORD
1 stop15h 00mMultiple Airlines
Tue 21/1015:45ORD - LTN
1 stop11h 40mMultiple Airlines
Deal found 16/9£395
Wed 24/913:00LTN - ORD
1 stop12h 00mMultiple Airlines
Wed 1/1021:15ORD - LTN
1 stop12h 10mMultiple Airlines
Deal found 15/9£405
Wed 15/1010:00LTN - ORD
1 stop15h 00mMultiple Airlines
Wed 22/1021:15ORD - LTN
1 stop17h 30mMultiple Airlines
Deal found 15/9£405
Thu 30/1020:00LTN - ORD
2 stops30h 05mMultiple Airlines
Thu 6/1118:50ORD - LTN
2 stops19h 40mMultiple Airlines
Deal found 15/9£416
Fri 7/1105:50LTN - ORD
1 stop14h 10mMultiple Airlines
Mon 10/1115:50ORD - LTN
1 stop10h 45mMultiple Airlines
Deal found 16/9£431
Wed 15/1010:00LTN - ORD
1 stop15h 00mMultiple Airlines
Sat 18/1015:45ORD - LTN
1 stop11h 45mMultiple Airlines
Deal found 16/9£438
Wed 15/1013:10LTN - ORD
2 stops29h 25mMultiple Airlines
Wed 5/1119:10ORD - LTN
2 stops21h 10mMultiple Airlines
Deal found 15/9£447
Sat 1/1109:00LTN - ORD
1 stop14h 55mMultiple Airlines
Sun 9/1115:50ORD - LTN
1 stop11h 05mMultiple Airlines
Deal found 16/9£452
Thu 16/1012:55LTN - ORD
2 stops30h 25mMultiple Airlines
Thu 23/1019:05ORD - LTN
2 stops19h 50mMultiple Airlines
Deal found 16/9£465
Fri 31/1010:30LTN - STL
3 stops33h 59mMultiple Airlines
Fri 7/1116:05STL - LTN
2 stops15h 55mMultiple Airlines
Deal found 16/9£933
Thu 9/1008:00LTN - STL
2 stops35h 30mMultiple Airlines
Wed 15/1016:05STL - LTN
2 stops17h 20mMultiple Airlines
Deal found 14/9£985
Wed 24/914:10LTN - STL
3 stops35h 47mMultiple Airlines
Wed 1/1016:05STL - LTN
2 stops17h 20mMultiple Airlines
Deal found 15/9£1,048

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 17 September 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

Tue 14/10

10:00-19:00

1 stop15h 00m

Chicago O'Hare Intl

Tue 21/10

15:45-09:25

1 stop11h 40m

£404

LondonChicago

LTN - ORD

LTNORD

London Luton

Wed 15/10

10:00-19:00

1 stop15h 00m

Chicago O'Hare Intl

Sat 18/10

15:45-09:30

1 stop11h 45m

£438

LondonChicago

LTN - ORD

LTNORD

London Luton

Thu 30/10

15:15-17:45

3 stops31h 30m

Chicago O'Hare Intl

Thu 6/11

19:20-22:35

2 stops21h 15m

£447

LondonChicago

LTN - ORD

LTNORD

London Luton

Wed 15/10

13:10-12:35

2 stops29h 25m

Chicago O'Hare Intl

Wed 5/11

19:10-22:20

2 stops21h 10m

£447

LondonChicago

LTN - ORD

LTNORD

London Luton

Fri 26/12

10:25-17:55

1 stop13h 30m

Chicago O'Hare Intl

Tue 6/1

21:00-20:05

1 stop17h 05m

£452

LondonChicago

LTN - ORD

LTNORD

London Luton

Thu 16/10

12:55-13:20

2 stops30h 25m

Chicago O'Hare Intl

Thu 23/10

19:05-20:55

2 stops19h 50m

£465

LondonChicago

LTN - ORD

LTNORD

London Luton

Thu 30/10

15:15-16:15

2 stops30h 00m

Chicago O'Hare Intl

Wed 12/11

19:10-21:05

2 stops19h 55m

£485

LondonChicago

LTN - ORD

LTNORD

London Luton

Tue 30/9

07:00-19:29

3 stops18h 29m

Chicago O'Hare Intl

Tue 7/10

08:40-12:20

2 stops21h 40m

£505

LondonChicago

LTN - ORD

LTNORD

London Luton

Sat 1/11

08:30-21:00

1 stop17h 30m

Chicago O'Hare Intl

Sat 8/11

21:55-18:15

1 stop14h 20m

£523

LondonChicago

LTN - ORD

LTNORD

London Luton

Sun 12/10

08:35-09:22

3 stops30h 47m

Chicago O'Hare Intl

Fri 24/10

18:00-21:00

2 stops21h 00m

£535

Flights are sorted by cheapest return flights first.

Deals found on 16/9

Showing 1-10 of 32 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 17 September 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.

  • 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.

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

    Currently, January is the cheapest month in which you can book a flight from London Luton Airport to Illinois (average of £595). Flying from London Luton Airport to Illinois in July is currently the most expensive (average of £843). 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 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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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.

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