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Cheap flights from London Luton Airport to Illinois from £290

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 20/4. Fares are subject to change and may not be available on all flights or dates of travel.
LTN — ORD
20 Mar — 27 Mar1
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 18 February 2026.

Wed 22/406:15
LTN
-
ORD
2 stops18h 00m
Multiple Airlines
Sun 26/419:25
ORD
-
LTN
2 stops20h 15m
Multiple Airlines
Deal found 17/2£454
Thu 23/409:25
LTN
-
ORD
2 stops14h 50m
Multiple Airlines
Wed 29/419:25
ORD
-
LTN
2 stops19h 50m
Multiple Airlines
Deal found 17/2£462
Fri 17/417:10
LTN
-
ORD
3 stops29h 00m
Multiple Airlines
Mon 20/419:15
ORD
-
LTN
2 stops21h 35m
Multiple Airlines
Deal found 16/2£463
Mon 16/308:25
LTN
-
ORD
1 stop17h 30m
Multiple Airlines
Mon 30/321:50
ORD
-
LTN
2 stops21h 20m
Multiple Airlines
Deal found 15/2£480
Wed 8/406:15
LTN
-
ORD
2 stops18h 00m
Multiple Airlines
Wed 22/419:25
ORD
-
LTN
2 stops19h 50m
Multiple Airlines
Deal found 14/2£485
Mon 13/408:15
LTN
-
ORD
2 stops16h 00m
Multiple Airlines
Wed 22/419:25
ORD
-
LTN
2 stops15h 10m
Multiple Airlines
Deal found 14/2£489
Mon 23/217:00
LTN
-
ORD
2 stops28h 10m
Multiple Airlines
Mon 2/316:25
ORD
-
LTN
2 stops23h 55m
Multiple Airlines
Deal found 17/2£493
Wed 26/806:15
LTN
-
STL
3 stops37h 47m
Multiple Airlines
Tue 22/908:55
STL
-
LTN
3 stops23h 40m
Multiple Airlines
Deal found 18/2£727
Mon 18/508:15
LTN
-
STL
2 stops17h 49m
Multiple Airlines
Sun 31/513:00
STL
-
LTN
2 stops20h 25m
Multiple Airlines
Deal found 16/2£753
Fri 22/506:20
LTN
-
STL
2 stops19h 44m
Multiple Airlines
Sun 31/513:00
STL
-
LTN
2 stops20h 25m
Multiple Airlines
Deal found 15/2£835
Sun 15/308:00
LTN
-
STL
3 stops36h 29m
Multiple Airlines
Sun 22/316:50
STL
-
LTN
2 stops16h 25m
Multiple Airlines
Deal found 15/2£909
Sun 26/709:00
LTN
-
STL
2 stops17h 02m
Multiple Airlines
Tue 4/814:40
STL
-
LTN
2 stops16h 45m
Multiple Airlines
Deal found 14/2£938

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 18 February 2026.

Round-trip from

£454

One-way from

£290

Popular in

July

Cheapest in

September

Average price

£433
22/4-26/4
  • 22/4-26/4
  • 4 total stops
  • 38h 15m total
  • London to Illinois
Search Deals
20/4
  • 20/4
  • 3 total stops
  • 51h 40m total
  • London to Illinois
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£57 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 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 18 February 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

Wed 22/4

06:15-18:15

2 stops18h 00m

Chicago O'Hare Intl

Sun 26/4

19:25-21:40

2 stops20h 15m

£454

LondonChicago

LTN - ORD

LTNORD

London Luton

Thu 23/4

09:25-18:15

2 stops14h 50m

Chicago O'Hare Intl

Wed 29/4

19:25-21:15

2 stops19h 50m

£462

LondonChicago

LTN - ORD

LTNORD

London Luton

Mon 16/3

08:25-20:55

1 stop17h 30m

Chicago O'Hare Intl

Mon 30/3

21:50-01:10

2 stops21h 20m

£481

LondonChicago

LTN - ORD

LTNORD

London Luton

Wed 8/4

06:15-18:15

2 stops18h 00m

Chicago O'Hare Intl

Wed 22/4

19:25-21:15

2 stops19h 50m

£485

LondonChicago

LTN - ORD

LTNORD

London Luton

Sun 1/3

08:05-14:00

1 stop11h 55m

Chicago O'Hare Intl

Sun 8/3

20:40-11:45

1 stop10h 05m

£504

LondonSt. Louis

LTN - STL

LTNSTL

London Luton

Fri 22/5

06:20-20:04

2 stops19h 44m

Lambert-St Louis

Sun 31/5

13:00-15:25

2 stops20h 25m

£835

LondonSt. Louis

LTN - STL

LTNSTL

London Luton

Mon 18/5

08:15-20:04

2 stops17h 49m

Lambert-St Louis

Sun 31/5

13:00-15:25

3 stops20h 25m

£896

LondonSt. Louis

LTN - STL

LTNSTL

London Luton

Sun 15/3

08:00-15:29

3 stops36h 29m

Lambert-St Louis

Sun 22/3

16:50-14:15

2 stops16h 25m

£909

LondonSt. Louis

LTN - STL

LTNSTL

London Luton

Sun 26/7

09:00-20:02

2 stops17h 02m

Lambert-St Louis

Tue 4/8

14:40-13:25

2 stops16h 45m

£938

LondonSt. Louis

LTN - STL

LTNSTL

London Luton

Fri 26/6

06:00-22:44

3 stops22h 44m

Lambert-St Louis

Sun 28/6

07:25-14:35

3 stops25h 10m

£1,062

Flights are sorted by cheapest return flights first.

Deals found on 17/2

Showing 1-10 of 37 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

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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