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Cheap flights from London Luton Airport to Illinois from £369

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 27/9. Fares are subject to change and may not be available on all flights or dates of travel.
LTN — ORD
28 Aug — 4 Sep1
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 29 July 2026.

Wed 9/906:15
LTN
-
ORD
3 stops19h 33m
Multiple Airlines
Sun 20/922:25
ORD
-
LTN
2 stops17h 55m
Multiple Airlines
Deal found 27/7£502
Wed 9/906:15
LTN
-
ORD
3 stops32h 45m
Multiple Airlines
Wed 16/922:25
ORD
-
LTN
2 stops17h 50m
Multiple Airlines
Deal found 27/7£502
Thu 10/913:00
LTN
-
ORD
3 stops33h 10m
Multiple Airlines
Thu 17/919:15
ORD
-
LTN
2 stops22h 10m
Multiple Airlines
Deal found 27/7£503
Thu 24/915:50
LTN
-
ORD
3 stops30h 20m
Multiple Airlines
Mon 28/919:15
ORD
-
LTN
2 stops21h 35m
Multiple Airlines
Deal found 27/7£504
Wed 9/913:50
LTN
-
ORD
2 stops32h 20m
Multiple Airlines
Mon 14/919:15
ORD
-
LTN
2 stops21h 35m
Multiple Airlines
Deal found 27/7£505
Wed 23/906:15
LTN
-
ORD
3 stops32h 45m
Multiple Airlines
Sun 27/922:25
ORD
-
LTN
2 stops17h 55m
Multiple Airlines
Deal found 24/7£509
Tue 8/909:40
LTN
-
ORD
1 stop15h 35m
Multiple Airlines
Tue 15/921:00
ORD
-
LTN
1 stop19h 10m
Multiple Airlines
Deal found 24/7£509
Thu 3/915:50
LTN
-
ORD
3 stops30h 20m
Multiple Airlines
Tue 8/919:15
ORD
-
LTN
2 stops20h 55m
Multiple Airlines
Deal found 26/7£512
Wed 2/906:15
LTN
-
ORD
2 stops18h 00m
Multiple Airlines
Tue 8/919:25
ORD
-
LTN
2 stops14h 05m
Multiple Airlines
Deal found 25/7£513
Wed 9/906:15
LTN
-
ORD
1 stop19h 00m
Multiple Airlines
Tue 15/921:00
ORD
-
LTN
1 stop19h 10m
Multiple Airlines
Deal found 24/7£514
Wed 23/906:15
LTN
-
ORD
3 stops32h 45m
Multiple Airlines
Wed 30/922:25
ORD
-
LTN
2 stops17h 50m
Multiple Airlines
Deal found 25/7£515
Thu 10/906:05
LTN
-
STL
2 stops18h 36m
Multiple Airlines
Thu 17/914:40
STL
-
LTN
2 stops15h 15m
Multiple Airlines
Deal found 27/7£799

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 29 July 2026.

Round-trip from

£502

One-way from

£369

Popular in

July

Cheapest in

February

Average price

£720
9/9-20/9
  • 9/9-20/9
  • 5 total stops
  • 37h 28m total
  • London to Illinois
Search Deals
27/9
  • 27/9
  • 3 total stops
  • 34h 40m total
  • London to Illinois
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (£83 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£11 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 29 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

Wed 23/9

06:15-19:48

3 stops19h 33m

Chicago O'Hare Intl

Wed 30/9

22:25-22:15

2 stops17h 50m

£520

LondonChicago

LTN - ORD

LTNORD

London Luton

Fri 4/9

06:20-14:00

1 stop13h 40m

Chicago O'Hare Intl

Wed 9/9

21:00-21:15

1 stop18h 15m

£521

LondonChicago

LTN - ORD

LTNORD

London Luton

Tue 15/9

15:15-18:15

2 stops33h 00m

Chicago O'Hare Intl

Wed 23/9

22:25-22:15

2 stops17h 50m

£523

LondonChicago

LTN - ORD

LTNORD

London Luton

Wed 9/9

06:15-19:48

3 stops19h 33m

Chicago O'Hare Intl

Mon 16/11

15:55-10:45

1 stop12h 50m

£532

LondonChicago

LTN - ORD

LTNORD

London Luton

Mon 14/9

19:45-16:10

2 stops26h 25m

Chicago O'Hare Intl

Tue 29/9

19:15-19:05

2 stops17h 50m

£535
Fastest return journey

LondonChicago

LTN - ORD

LTNORD

London Luton

Mon 7/9

08:15-14:00

1 stop11h 45m

Chicago O'Hare Intl

Mon 21/9

15:45-09:15

1 stop11h 30m

£552

LondonChicago

LTN - ORD

LTNORD

London Luton

Mon 11/1

21:45-17:20

2 stops25h 35m

Chicago O'Hare Intl

Sun 17/1

21:00-19:00

1 stop16h 00m

£563

LondonChicago

LTN - ORD

LTNORD

London Luton

Sun 18/10

08:00-14:00

2 stops36h 00m

Chicago O'Hare Intl

Wed 28/10

19:30-21:05

2 stops20h 35m

£588

LondonChicago

LTN - ORD

LTNORD

London Luton

Wed 26/8

06:10-21:25

2 stops21h 15m

Chicago O'Hare Intl

Wed 2/9

22:25-22:35

2 stops18h 10m

£589

LondonChicago

LTN - ORD

LTNORD

London Luton

Fri 25/9

09:15-21:25

2 stops18h 10m

Chicago O'Hare Intl

Sat 3/10

19:25-21:05

2 stops19h 40m

£594

Flights are sorted by cheapest return flights first.

Deals found on 28/7

Showing 1-10 of 35 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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