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Cheap flights from London Luton Airport to Illinois from £323

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 2/2. Fares are subject to change and may not be available on all flights or dates of travel.
LTN — ORD
12 Feb — 19 Feb1
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 13 January 2026.

Round-trip from

£421

One-way from

£323

Popular in

July

Cheapest in

February

Average price

£464
12/4-18/4
  • 12/4-18/4
  • 4 total stops
  • 55h 40m total
  • London to Illinois
Search Deals
2/2
  • 2/2
  • 3 total stops
  • 53h 31m total
  • London to Illinois
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£65 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 January 2026
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 13 January 2026.

Sun 12/412:45
LTN
-
ORD
2 stops33h 25m
Multiple Airlines
Sat 18/419:15
ORD
-
LTN
2 stops22h 15m
Multiple Airlines
Deal found 12/1£421
Wed 25/206:50
LTN
-
ORD
2 stops19h 15m
Multiple Airlines
Wed 4/322:35
ORD
-
LTN
2 stops17h 45m
Multiple Airlines
Deal found 10/1£436
Fri 23/105:50
LTN
-
ORD
2 stops17h 30m
Multiple Airlines
Fri 30/118:30
ORD
-
LTN
2 stops15h 45m
Multiple Airlines
Deal found 11/1£443
Sat 21/206:00
LTN
-
ORD
1 stop19h 15m
Multiple Airlines
Sun 1/315:50
ORD
-
LTN
1 stop11h 05m
Multiple Airlines
Deal found 12/1£446
Tue 3/209:00
LTN
-
ORD
1 stop16h 15m
Multiple Airlines
Tue 10/221:00
ORD
-
LTN
1 stop17h 05m
Multiple Airlines
Deal found 12/1£447
Sun 8/213:10
LTN
-
ORD
2 stops33h 35m
Multiple Airlines
Sun 15/219:10
ORD
-
LTN
2 stops20h 50m
Multiple Airlines
Deal found 11/1£449
Thu 26/208:25
LTN
-
ORD
2 stops17h 35m
Multiple Airlines
Thu 5/321:55
ORD
-
LTN
2 stops17h 00m
Multiple Airlines
Deal found 12/1£450
Mon 2/206:00
LTN
-
ORD
1 stop19h 15m
Multiple Airlines
Thu 5/221:00
ORD
-
LTN
1 stop17h 30m
Multiple Airlines
Deal found 13/1£453
Thu 22/109:00
LTN
-
ORD
2 stops14h 20m
Multiple Airlines
Wed 28/118:30
ORD
-
LTN
2 stops16h 35m
Multiple Airlines
Deal found 12/1£453
Thu 5/320:50
LTN
-
STL
2 stops23h 05m
Multiple Airlines
Sun 8/316:50
STL
-
LTN
2 stops16h 25m
Multiple Airlines
Deal found 12/1£716
Wed 29/421:50
LTN
-
STL
3 stops26h 37m
Multiple Airlines
Mon 18/513:00
STL
-
LTN
2 stops24h 25m
Multiple Airlines
Deal found 12/1£791
Tue 31/319:55
LTN
-
STL
2 stops23h 30m
Multiple Airlines
Fri 10/416:05
STL
-
LTN
3 stops20h 00m
Multiple Airlines
Deal found 12/1£1,006

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 13 January 2026.
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

Sun 12/4

12:45-16:10

2 stops33h 25m

Chicago O'Hare Intl

Sat 18/4

19:15-23:30

2 stops22h 15m

£421

LondonChicago

LTN - ORD

LTNORD

London Luton

Sat 21/2

06:00-19:15

1 stop19h 15m

Chicago O'Hare Intl

Sun 1/3

15:50-08:55

1 stop11h 05m

£446

LondonChicago

LTN - ORD

LTNORD

London Luton

Thu 26/2

14:10-19:15

1 stop11h 05m

Chicago O'Hare Intl

Thu 5/3

21:00-13:20

1 stop10h 20m

£451

LondonChicago

LTN - ORD

LTNORD

London Luton

Mon 2/2

06:00-19:15

1 stop19h 15m

Chicago O'Hare Intl

Thu 5/2

21:00-20:30

1 stop17h 30m

£453

LondonChicago

LTN - ORD

LTNORD

London Luton

Wed 4/3

08:30-20:00

1 stop17h 30m

Chicago O'Hare Intl

Tue 10/3

22:55-18:00

1 stop14h 05m

£456

LondonChicago

LTN - ORD

LTNORD

London Luton

Wed 25/2

08:30-20:00

1 stop17h 30m

Chicago O'Hare Intl

Wed 4/3

21:55-18:15

1 stop14h 20m

£460

LondonChicago

LTN - ORD

LTNORD

London Luton

Sat 28/2

08:30-20:00

1 stop17h 30m

Chicago O'Hare Intl

Fri 6/3

21:55-18:15

1 stop14h 20m

£464

LondonChicago

LTN - ORD

LTNORD

London Luton

Mon 16/2

13:50-16:20

2 stops32h 30m

Chicago O'Hare Intl

Sun 22/2

18:50-22:00

2 stops21h 10m

£465

LondonChicago

LTN - ORD

LTNORD

London Luton

Mon 26/1

06:00-17:20

2 stops17h 20m

Chicago O'Hare Intl

Thu 29/1

18:30-13:20

2 stops12h 50m

£465

LondonChicago

LTN - ORD

LTNORD

London Luton

Tue 3/3

08:30-20:00

1 stop17h 30m

Chicago O'Hare Intl

Tue 24/3

22:55-18:00

1 stop14h 05m

£466

Flights are sorted by cheapest return flights first.

Deals found on 11/1

Showing 1-10 of 35 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
No data available for this route at this time. Please check back soon.

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.

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Alternative routes for Luton to Illinois

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