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Cheap flights from London Luton Airport to Illinois from £338

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 24/8. Fares are subject to change and may not be available on all flights or dates of travel.
LTN — ORD
6 Aug — 13 Aug1
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 7 July 2026.

Mon 24/812:25
LTN
-
ORD
3 stops33h 45m
Multiple Airlines
Fri 4/919:15
ORD
-
LTN
3 stops23h 15m
Multiple Airlines
Deal found 2/7£511
Thu 3/906:05
LTN
-
ORD
2 stops18h 10m
Multiple Airlines
Sun 6/922:25
ORD
-
LTN
2 stops18h 30m
Multiple Airlines
Deal found 3/7£515
Tue 25/809:40
LTN
-
ORD
2 stops14h 35m
Multiple Airlines
Mon 31/819:25
ORD
-
LTN
2 stops21h 25m
Multiple Airlines
Deal found 5/7£517
Tue 8/916:10
LTN
-
ORD
2 stops30h 00m
Multiple Airlines
Fri 11/919:15
ORD
-
LTN
3 stops23h 15m
Multiple Airlines
Deal found 3/7£518
Sun 23/819:00
LTN
-
ORD
2 stops32h 25m
Multiple Airlines
Mon 31/819:25
ORD
-
LTN
2 stops20h 50m
Multiple Airlines
Deal found 4/7£519
Wed 2/906:15
LTN
-
ORD
3 stops38h 40m
Multiple Airlines
Mon 14/919:25
ORD
-
LTN
2 stops15h 45m
Multiple Airlines
Deal found 5/7£522
Wed 21/1016:30
LTN
-
ORD
2 stops26h 10m
Multiple Airlines
Sun 25/1021:10
ORD
-
LTN
2 stops20h 10m
Multiple Airlines
Deal found 2/7£525
Sat 17/1011:00
LTN
-
ORD
2 stops13h 15m
Multiple Airlines
Sat 24/1019:30
ORD
-
LTN
2 stops22h 10m
Multiple Airlines
Deal found 2/7£526
Thu 27/809:25
LTN
-
ORD
2 stops14h 50m
Multiple Airlines
Mon 31/819:25
ORD
-
LTN
2 stops21h 25m
Multiple Airlines
Deal found 3/7£527
Fri 18/912:45
LTN
-
ORD
2 stops33h 20m
Multiple Airlines
Thu 24/918:00
ORD
-
LTN
2 stops24h 50m
Multiple Airlines
Deal found 6/7£528
Thu 10/905:40
LTN
-
STL
3 stops20h 40m
Multiple Airlines
Thu 24/914:40
STL
-
LTN
2 stops15h 45m
Multiple Airlines
Deal found 2/7£722
Fri 11/905:40
LTN
-
STL
3 stops20h 40m
Multiple Airlines
Sun 20/912:10
STL
-
LTN
2 stops19h 15m
Multiple Airlines
Deal found 2/7£950

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 7 July 2026.

Round-trip from

£511

One-way from

£338

Popular in

July

Cheapest in

February

Average price

£695
24/8-4/9
  • 24/8-4/9
  • 6 total stops
  • 57h 00m total
  • London to Illinois
Search Deals
24/8
  • 24/8
  • 3 total stops
  • 53h 10m total
  • London to Illinois
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£78 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 July 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 7 July 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

Cheapest return flight

LondonChicago

LTN - ORD

LTNORD

London Luton

Thu 17/9

12:45-16:00

2 stops33h 15m

Chicago O'Hare Intl

Sun 20/9

18:00-18:05

2 stops18h 05m

£525

LondonChicago

LTN - ORD

LTNORD

London Luton

Sun 23/8

09:15-21:25

2 stops18h 10m

Chicago O'Hare Intl

Tue 8/9

19:25-21:05

2 stops19h 40m

£535
Fastest return journey

LondonChicago

LTN - ORD

LTNORD

London Luton

Tue 25/8

13:10-19:15

1 stop12h 05m

Chicago O'Hare Intl

Mon 31/8

21:00-15:45

1 stop12h 45m

£549

LondonChicago

LTN - ORD

LTNORD

London Luton

Sat 29/8

15:10-16:10

2 stops31h 00m

Chicago O'Hare Intl

Tue 8/9

19:15-19:05

2 stops17h 50m

£559

LondonChicago

LTN - ORD

LTNORD

London Luton

Sun 4/10

09:00-14:00

1 stop11h 00m

Chicago O'Hare Intl

Mon 12/10

21:00-22:50

1 stop19h 50m

£573

LondonChicago

LTN - ORD

LTNORD

London Luton

Wed 2/9

07:15-17:50

2 stops16h 35m

Chicago O'Hare Intl

Wed 9/9

15:45-09:00

1 stop11h 15m

£585

LondonChicago

LTN - ORD

LTNORD

London Luton

Mon 24/8

19:40-14:25

2 stops24h 45m

Chicago O'Hare Intl

Tue 8/9

15:45-09:15

1 stop11h 30m

£599

LondonChicago

LTN - ORD

LTNORD

London Luton

Wed 19/8

06:15-14:00

1 stop13h 45m

Chicago O'Hare Intl

Wed 26/8

21:00-15:25

1 stop12h 25m

£615

LondonChicago

LTN - ORD

LTNORD

London Luton

Wed 29/7

06:15-18:15

2 stops18h 00m

Chicago O'Hare Intl

Mon 3/8

19:25-15:45

2 stops14h 20m

£668

LondonChicago

LTN - ORD

LTNORD

London Luton

Wed 26/8

06:15-14:00

1 stop13h 45m

Chicago O'Hare Intl

Mon 31/8

15:45-09:15

1 stop11h 30m

£669

Flights are sorted by cheapest return flights first.

Deals found on 2/7

Showing 1-10 of 43 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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Stansted to Dulles Intl flights

Fly with Cheapflights

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