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Cheap flights from London Luton Airport to Illinois from £355

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 2/9. Fares are subject to change and may not be available on all flights or dates of travel.
LTN — ORD
10 Jul — 17 Jul1
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 10 June 2026.

Fri 2/1017:10
LTN
-
ORD
3 stops29h 00m
Multiple Airlines
Sun 4/1019:15
ORD
-
LTN
2 stops20h 25m
Multiple Airlines
Deal found 5/6£547
Mon 15/606:05
LTN
-
ORD
2 stops21h 20m
Multiple Airlines
Mon 29/622:25
ORD
-
LTN
2 stops17h 50m
Multiple Airlines
Deal found 5/6£551
Wed 26/806:15
LTN
-
ORD
1 stop13h 45m
Multiple Airlines
Mon 31/815:45
ORD
-
LTN
1 stop11h 30m
Multiple Airlines
Deal found 7/6£558
Thu 3/913:00
LTN
-
ORD
1 stop12h 15m
Multiple Airlines
Thu 10/915:45
ORD
-
LTN
1 stop11h 45m
Multiple Airlines
Deal found 7/6£560
Wed 7/1007:15
LTN
-
ORD
2 stops16h 35m
Multiple Airlines
Mon 12/1015:45
ORD
-
LTN
1 stop11h 30m
Multiple Airlines
Deal found 6/6£561
Fri 28/806:20
LTN
-
ORD
1 stop13h 40m
Multiple Airlines
Sat 5/915:45
ORD
-
LTN
1 stop12h 45m
Multiple Airlines
Deal found 5/6£567
Thu 17/913:00
LTN
-
ORD
1 stop12h 15m
Multiple Airlines
Sun 20/915:45
ORD
-
LTN
1 stop13h 40m
Multiple Airlines
Deal found 6/6£568
Fri 18/906:20
LTN
-
ORD
2 stops16h 38m
Multiple Airlines
Sun 20/919:25
ORD
-
LTN
2 stops20h 55m
Multiple Airlines
Deal found 5/6£571
Fri 18/906:20
LTN
-
ORD
2 stops16h 38m
Multiple Airlines
Fri 2/1019:25
ORD
-
LTN
2 stops22h 25m
Multiple Airlines
Deal found 6/6£573
Wed 1/706:15
LTN
-
ORD
2 stops21h 10m
Multiple Airlines
Mon 20/719:25
ORD
-
LTN
2 stops14h 20m
Multiple Airlines
Deal found 9/6£574
Thu 25/621:40
LTN
-
STL
3 stops28h 45m
Multiple Airlines
Wed 15/714:40
STL
-
LTN
2 stops24h 35m
Multiple Airlines
Deal found 9/6£792
Wed 1/706:15
LTN
-
STL
3 stops20h 31m
Multiple Airlines
Tue 7/712:10
STL
-
LTN
2 stops20h 40m
Multiple Airlines
Deal found 6/6£869

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 10 June 2026.

Round-trip from

£558

One-way from

£355

Popular in

July

Cheapest in

February

Average price

£658
26/8-31/8
  • 26/8-31/8
  • 2 total stops
  • 25h 15m total
  • London to Illinois
Search Deals
2/9
  • 2/9
  • 3 total stops
  • 30h 32m total
  • London to Illinois
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£74 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 June 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 10 June 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 7/10

07:15-17:50

2 stops16h 35m

Chicago O'Hare Intl

Mon 12/10

15:45-09:15

1 stop11h 30m

£561

LondonChicago

LTN - ORD

LTNORD

London Luton

Mon 9/11

15:30-17:20

1 stop31h 50m

Chicago O'Hare Intl

Sun 15/11

18:30-22:30

1 stop22h 00m

£574

LondonChicago

LTN - ORD

LTNORD

London Luton

Mon 7/9

07:15-21:25

2 stops20h 10m

Chicago O'Hare Intl

Thu 10/9

15:45-16:45

2 stops19h 00m

£610

LondonChicago

LTN - ORD

LTNORD

London Luton

Tue 7/7

12:45-14:45

2 stops32h 00m

Chicago O'Hare Intl

Mon 20/7

19:25-22:50

2 stops21h 25m

£611

LondonChicago

LTN - ORD

LTNORD

London Luton

Fri 9/10

08:25-19:50

1 stop17h 25m

Chicago O'Hare Intl

Sun 11/10

21:50-19:05

1 stop15h 15m

£649

LondonChicago

LTN - ORD

LTNORD

London Luton

Tue 7/7

09:40-19:15

1 stop15h 35m

Chicago O'Hare Intl

Fri 17/7

15:45-08:25

1 stop10h 40m

£682
Fastest return journey

LondonChicago

LTN - ORD

LTNORD

London Luton

Mon 6/7

08:15-14:00

1 stop11h 45m

Chicago O'Hare Intl

Fri 10/7

21:00-17:25

1 stop14h 25m

£701

LondonChicago

LTN - ORD

LTNORD

London Luton

Tue 7/7

12:45-14:45

2 stops32h 00m

Chicago O'Hare Intl

Thu 16/7

19:25-18:25

2 stops17h 00m

£703

LondonChicago

LTN - ORD

LTNORD

London Luton

Tue 21/7

17:45-16:00

2 stops28h 15m

Chicago O'Hare Intl

Sat 25/7

19:25-16:05

2 stops14h 40m

£709

LondonChicago

LTN - ORD

LTNORD

London Luton

Sun 5/7

09:00-19:15

1 stop16h 15m

Chicago O'Hare Intl

Sun 12/7

15:45-11:25

1 stop13h 40m

£709

Flights are sorted by cheapest return flights first.

Deals found on 5/6

Showing 1-10 of 40 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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