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Cheap flights from London Luton Airport to Illinois from £398

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/11. Fares are subject to change and may not be available on all flights or dates of travel.
LTN — ORD
23 Nov — 30 Nov1
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 24 October 2025.

Round-trip from

£398

Popular in

July

Cheapest in

February

Average price

£545
7/11-11/11
  • 7/11-11/11
  • 4 total stops
  • 37h 05m total
  • London to Illinois
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£62 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 October 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 24 October 2025.

Fri 7/1105:50LTN - ORD
2 stops17h 30mMultiple Airlines
Tue 11/1118:30ORD - LTN
2 stops19h 35mMultiple Airlines
Deal found 23/10£398
Thu 6/1109:00LTN - ORD
2 stops14h 20mMultiple Airlines
Wed 12/1118:30ORD - LTN
2 stops16h 35mMultiple Airlines
Deal found 22/10£400
Thu 13/1109:00LTN - ORD
2 stops14h 20mMultiple Airlines
Fri 28/1118:30ORD - LTN
2 stops19h 40mMultiple Airlines
Deal found 23/10£400
Thu 13/1114:10LTN - ORD
2 stops32h 35mMultiple Airlines
Sun 16/1119:20ORD - LTN
2 stops20h 40mMultiple Airlines
Deal found 23/10£405
Thu 6/1109:00LTN - ORD
1 stop11h 00mMultiple Airlines
Sun 9/1115:50ORD - LTN
1 stop11h 05mMultiple Airlines
Deal found 22/10£406
Fri 21/1105:50LTN - ORD
1 stop14h 10mMultiple Airlines
Fri 28/1119:40ORD - LTN
1 stop13h 45mMultiple Airlines
Deal found 22/10£418
Thu 27/1109:00LTN - ORD
1 stop11h 00mMultiple Airlines
Sun 30/1115:50ORD - LTN
1 stop11h 05mMultiple Airlines
Deal found 23/10£419
Fri 21/1117:30LTN - ORD
2 stops26h 50mMultiple Airlines
Mon 8/1217:20ORD - LTN
2 stops23h 00mMultiple Airlines
Deal found 23/10£423
Tue 28/1006:15LTN - STL
3 stops38h 14mMultiple Airlines
Wed 5/1115:50STL - LTN
2 stops21h 35mMultiple Airlines
Deal found 23/10£943
Thu 6/1119:20LTN - STL
2 stops24h 35mMultiple Airlines
Sun 9/1115:50STL - LTN
2 stops16h 25mMultiple Airlines
Deal found 23/10£978
Sat 6/1206:15LTN - STL
3 stops22h 30mMultiple Airlines
Sat 13/1216:05STL - LTN
2 stops16h 35mMultiple Airlines
Deal found 22/10£986
Thu 20/1121:40LTN - STL
3 stops32h 22mMultiple Airlines
Thu 27/1116:05STL - LTN
2 stops22h 50mMultiple Airlines
Deal found 23/10£1,199

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 24 October 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

Thu 13/11

09:00-17:20

2 stops14h 20m

Chicago O'Hare Intl

Fri 28/11

18:30-20:10

2 stops19h 40m

£400

LondonChicago

LTN - ORD

LTNORD

London Luton

Thu 13/11

09:00-14:00

1 stop11h 00m

Chicago O'Hare Intl

Sun 23/11

19:40-11:45

1 stop10h 05m

£414

LondonChicago

LTN - ORD

LTNORD

London Luton

Sun 7/12

08:05-14:00

1 stop11h 55m

Chicago O'Hare Intl

Sun 14/12

15:50-08:55

1 stop11h 05m

£414

LondonChicago

LTN - ORD

LTNORD

London Luton

Wed 19/11

06:50-14:00

1 stop13h 10m

Chicago O'Hare Intl

Wed 26/11

19:40-17:05

1 stop15h 25m

£444

LondonChicago

LTN - ORD

LTNORD

London Luton

Sat 10/1

09:00-19:15

1 stop16h 15m

Chicago O'Hare Intl

Sun 18/1

21:00-16:45

1 stop13h 45m

£459

LondonChicago

LTN - ORD

LTNORD

London Luton

Sat 22/11

09:20-14:20

2 stops35h 00m

Chicago O'Hare Intl

Sat 29/11

17:20-22:25

2 stops23h 05m

£466

LondonChicago

LTN - ORD

LTNORD

London Luton

Mon 3/11

08:50-17:55

1 stop15h 05m

Chicago O'Hare Intl

Tue 4/11

17:45-09:45

1 stop10h 00m

£480

LondonChicago

LTN - ORD

LTNORD

London Luton

Thu 13/11

14:10-16:20

2 stops32h 10m

Chicago O'Hare Intl

Sat 22/11

15:55-20:15

2 stops22h 20m

£510

LondonChicago

LTN - ORD

LTNORD

London Luton

Thu 6/11

15:30-16:45

2 stops31h 15m

Chicago O'Hare Intl

Thu 13/11

19:20-17:15

2 stops15h 55m

£512

LondonChicago

LTN - ORD

LTNORD

London Luton

Fri 30/1

14:35-16:45

2 stops32h 10m

Chicago O'Hare Intl

Sun 8/2

19:10-18:15

2 stops17h 05m

£528

Flights are sorted by cheapest return flights first.

Deals found on 22/10

Showing 1-10 of 28 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 24 October 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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