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Cheap flights from London Luton Airport to Illinois from £333

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 13/4. Fares are subject to change and may not be available on all flights or dates of travel.
LTN — ORD
30 Apr — 7 May1
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 31 March 2026.

Tue 5/509:40
LTN
-
ORD
1 stop15h 35m
Multiple Airlines
Sun 10/515:45
ORD
-
LTN
1 stop15h 40m
Multiple Airlines
Deal found 29/3£521
Mon 27/412:45
LTN
-
ORD
2 stops30h 35m
Multiple Airlines
Mon 4/514:20
ORD
-
LTN
2 stops21h 45m
Multiple Airlines
Deal found 30/3£522
Wed 15/406:15
LTN
-
ORD
1 stop19h 00m
Multiple Airlines
Fri 24/415:45
ORD
-
LTN
1 stop19h 40m
Multiple Airlines
Deal found 26/3£523
Wed 20/506:15
LTN
-
ORD
1 stop13h 45m
Multiple Airlines
Mon 25/521:00
ORD
-
LTN
1 stop19h 50m
Multiple Airlines
Deal found 29/3£524
Tue 21/417:45
LTN
-
ORD
2 stops28h 15m
Multiple Airlines
Mon 27/419:25
ORD
-
LTN
2 stops20h 40m
Multiple Airlines
Deal found 30/3£525
Mon 27/412:45
LTN
-
ORD
2 stops31h 30m
Multiple Airlines
Mon 11/516:50
ORD
-
LTN
2 stops19h 15m
Multiple Airlines
Deal found 27/3£527
Sat 9/521:25
LTN
-
ORD
2 stops28h 00m
Multiple Airlines
Tue 2/609:55
ORD
-
LTN
2 stops26h 35m
Multiple Airlines
Deal found 30/3£529
Thu 16/405:40
LTN
-
ORD
2 stops19h 45m
Multiple Airlines
Mon 20/414:00
ORD
-
LTN
2 stops22h 05m
Multiple Airlines
Deal found 29/3£531
Tue 9/609:40
LTN
-
ORD
2 stops14h 35m
Multiple Airlines
Tue 29/919:25
ORD
-
LTN
2 stops21h 25m
Multiple Airlines
Deal found 28/3£532
Wed 6/506:15
LTN
-
ORD
2 stops19h 10m
Multiple Airlines
Wed 27/509:55
ORD
-
LTN
3 stops20h 40m
Multiple Airlines
Deal found 28/3£535
Wed 2/906:15
LTN
-
STL
2 stops19h 52m
Multiple Airlines
Wed 23/908:55
STL
-
LTN
2 stops25h 40m
Multiple Airlines
Deal found 30/3£820
Tue 12/507:00
LTN
-
STL
2 stops19h 09m
Multiple Airlines
Tue 19/507:05
STL
-
LTN
3 stops35h 05m
Multiple Airlines
Deal found 28/3£905

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 31 March 2026.

Round-trip from

£520

One-way from

£333

Popular in

July

Cheapest in

September

Average price

£567
29/4-6/5
  • 29/4-6/5
  • 4 total stops
  • 37h 50m total
  • London to Illinois
Search Deals
13/4
  • 13/4
  • 3 total stops
  • 47h 50m total
  • London to Illinois
Search Deals
Highest demand for flights based on searches. 12% 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 March 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 31 March 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 28/5

09:25-18:15

2 stops14h 50m

Chicago O'Hare Intl

Mon 1/6

10:00-15:45

2 stops23h 45m

£555
Fastest return journey

LondonChicago

LTN - ORD

LTNORD

London Luton

Tue 12/5

13:10-19:15

1 stop12h 05m

Chicago O'Hare Intl

Tue 19/5

15:45-09:15

1 stop11h 30m

£563

LondonChicago

LTN - ORD

LTNORD

London Luton

Thu 7/5

13:00-19:15

1 stop12h 15m

Chicago O'Hare Intl

Thu 14/5

15:45-09:30

1 stop11h 45m

£565

LondonChicago

LTN - ORD

LTNORD

London Luton

Wed 10/6

18:10-12:55

2 stops24h 45m

Chicago O'Hare Intl

Mon 15/6

14:15-13:45

2 stops17h 30m

£594

LondonChicago

LTN - ORD

LTNORD

London Luton

Sat 30/5

11:00-19:15

1 stop14h 15m

Chicago O'Hare Intl

Thu 4/6

21:00-23:25

1 stop20h 25m

£603

LondonChicago

LTN - ORD

LTNORD

London Luton

Tue 2/6

17:20-16:59

3 stops29h 39m

Chicago O'Hare Intl

Tue 9/6

09:55-15:30

3 stops23h 35m

£621

LondonChicago

LTN - ORD

LTNORD

London Luton

Sun 10/5

08:30-06:39

2 stops28h 09m

Chicago O'Hare Intl

Sun 17/5

15:45-13:25

1 stop15h 40m

£626

LondonChicago

LTN - ORD

LTNORD

London Luton

Wed 20/5

06:15-09:05

3 stops32h 50m

Chicago O'Hare Intl

Mon 25/5

15:50-12:45

2 stops14h 55m

£650

LondonChicago

LTN - ORD

LTNORD

London Luton

Tue 21/4

07:05-15:10

1 stop14h 05m

Chicago O'Hare Intl

Mon 27/4

11:08-10:35

2 stops17h 27m

£654

LondonChicago

LTN - ORD

LTNORD

London Luton

Mon 11/5

06:05-19:15

2 stops19h 10m

Chicago O'Hare Intl

Mon 18/5

15:45-13:15

2 stops15h 30m

£672

Flights are sorted by cheapest return flights first.

Deals found on 27/3

Showing 1-10 of 39 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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