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Cheap flights from London Luton Airport to Illinois from £282

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 5/5. Fares are subject to change and may not be available on all flights or dates of travel.
LTN — ORD
28 Mar — 4 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap 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 26 February 2026.

Thu 16/415:50
LTN
-
ORD
2 stops30h 20m
Multiple Airlines
Mon 20/419:15
ORD
-
LTN
2 stops21h 35m
Multiple Airlines
Deal found 23/2£407
Sun 19/412:45
LTN
-
ORD
2 stops33h 25m
Multiple Airlines
Wed 22/419:15
ORD
-
LTN
2 stops21h 25m
Multiple Airlines
Deal found 24/2£408
Wed 8/406:15
LTN
-
ORD
2 stops18h 00m
Multiple Airlines
Wed 15/419:25
ORD
-
LTN
2 stops19h 50m
Multiple Airlines
Deal found 22/2£446
Mon 13/408:15
LTN
-
ORD
2 stops16h 00m
Multiple Airlines
Mon 27/419:25
ORD
-
LTN
2 stops14h 20m
Multiple Airlines
Deal found 23/2£454
Mon 27/408:15
LTN
-
ORD
2 stops16h 00m
Multiple Airlines
Thu 30/419:25
ORD
-
LTN
2 stops21h 20m
Multiple Airlines
Deal found 23/2£463
Wed 15/406:15
LTN
-
ORD
2 stops18h 00m
Multiple Airlines
Mon 27/419:25
ORD
-
LTN
2 stops21h 25m
Multiple Airlines
Deal found 25/2£469
Mon 13/408:15
LTN
-
ORD
3 stops32h 38m
Multiple Airlines
Wed 22/419:25
ORD
-
LTN
2 stops15h 10m
Multiple Airlines
Deal found 24/2£469
Wed 2/907:15
LTN
-
ORD
2 stops16h 35m
Multiple Airlines
Mon 7/921:00
ORD
-
LTN
1 stop12h 45m
Multiple Airlines
Deal found 23/2£472
Sat 18/418:15
LTN
-
ORD
2 stops27h 45m
Multiple Airlines
Sat 25/419:25
ORD
-
LTN
2 stops21h 30m
Multiple Airlines
Deal found 24/2£472
Tue 1/915:15
LTN
-
ORD
2 stops33h 00m
Multiple Airlines
Tue 29/919:25
ORD
-
LTN
3 stops20h 45m
Multiple Airlines
Deal found 22/2£475
Fri 10/406:20
LTN
-
ORD
2 stops17h 55m
Multiple Airlines
Fri 17/419:25
ORD
-
LTN
2 stops23h 05m
Multiple Airlines
Deal found 24/2£476
Wed 20/506:15
LTN
-
STL
3 stops19h 49m
Multiple Airlines
Fri 7/814:40
STL
-
LTN
2 stops20h 45m
Multiple Airlines
Deal found 25/2£694

Find flight deals from Luton to Illinois

Keep the following information in mind while searching for Luton to Illinois flight deals. Data was last updated 26 February 2026.

Round-trip from

£407

One-way from

£282

Popular in

July

Cheapest in

September

Average price

£435
16/4-20/4
  • 16/4-20/4
  • 4 total stops
  • 51h 55m total
  • London to Illinois
Search Deals
5/5
  • 5/5
  • 3 total stops
  • 55h 20m total
  • London to Illinois
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£58 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 February 2026
Search Deals

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 26 February 2026.
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

Sat 11/4

12:40-14:15

2 stops31h 35m

Chicago O'Hare Intl

Sat 18/4

17:10-18:05

2 stops18h 55m

£477

LondonChicago

LTN - ORD

LTNORD

London Luton

Sat 11/4

18:15-16:00

2 stops27h 45m

Chicago O'Hare Intl

Sat 25/4

19:25-22:55

2 stops21h 30m

£480

LondonChicago

LTN - ORD

LTNORD

London Luton

Thu 9/4

09:25-18:15

2 stops14h 50m

Chicago O'Hare Intl

Thu 16/4

19:25-16:45

2 stops15h 20m

£536

LondonChicago

LTN - ORD

LTNORD

London Luton

Wed 3/6

07:15-17:50

2 stops16h 35m

Chicago O'Hare Intl

Mon 15/6

21:00-15:45

1 stop12h 45m

£574

LondonChicago

LTN - ORD

LTNORD

London Luton

Fri 12/6

06:20-14:00

1 stop13h 40m

Chicago O'Hare Intl

Sat 27/6

15:45-08:20

1 stop10h 35m

£582

LondonChicago

LTN - ORD

LTNORD

London Luton

Mon 13/4

08:15-18:15

2 stops16h 00m

Chicago O'Hare Intl

Wed 22/4

21:00-15:25

1 stop12h 25m

£616

LondonChicago

LTN - ORD

LTNORD

London Luton

Tue 19/5

09:40-18:15

2 stops14h 35m

Chicago O'Hare Intl

Sun 24/5

16:37-13:25

2 stops14h 48m

£693

LondonChicago

LTN - ORD

LTNORD

London Luton

Wed 25/3

08:00-18:20

1 stop15h 20m

Chicago O'Hare Intl

Wed 1/4

16:40-21:10

2 stops22h 30m

£705

LondonChicago

LTN - ORD

LTNORD

London Luton

Sat 16/5

09:00-18:15

2 stops15h 15m

Chicago O'Hare Intl

Sat 6/6

17:35-13:00

2 stops13h 25m

£716

LondonChicago

LTN - ORD

LTNORD

London Luton

Mon 16/3

06:00-15:00

1 stop14h 00m

Chicago O'Hare Intl

Thu 19/3

20:40-13:20

1 stop11h 40m

£740

Flights are sorted by cheapest return flights first.

Deals found on 22/2

Showing 1-10 of 37 resultsSorted by cheapest first
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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

See prices for flight routes from nearby airports that may be better suited for you.
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Fly with Cheapflights

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How does Cheapflights help users find flights from Luton to Illinois?

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