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Cheap flights from London Luton Airport to Illinois from £335

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 10/9. Fares are subject to change and may not be available on all flights or dates of travel.
LTN — ORD
11 Sep — 18 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 12 August 2026.

Tue 1/909:40 -
2 stops14h 35m
Tue 8/919:25 -
2 stops14h 05m
Deal found 11/8£474
Thu 3/913:00 -
1 stop12h 15m
Sun 6/915:45 -
1 stop13h 40m
Deal found 10/8£480
Sat 5/909:00 -
1 stop16h 15m
Sat 19/915:45 -
1 stop10h 35m
Deal found 8/8£480
Wed 21/1006:15 -
1 stop13h 45m
Sun 25/1016:55 -
1 stop11h 15m
Deal found 9/8£481
Mon 7/908:15 -
1 stop11h 45m
Mon 21/915:45 -
1 stop11h 30m
Deal found 8/8£484
Mon 7/908:15 -
1 stop11h 45m
Mon 14/915:45 -
1 stop11h 30m
Deal found 10/8£487
Sat 26/911:00 -
1 stop14h 15m
Sat 3/1015:45 -
1 stop12h 45m
Deal found 12/8£489
Wed 9/906:15 -
3 stops20h 05m
Wed 23/908:55 -
3 stops31h 45m
Deal found 10/8£763
Thu 24/905:40 -
2 stops19h 01m
Thu 1/1014:40 -
2 stops15h 45m
Deal found 10/8£768
Wed 9/921:50 -
2 stops26h 51m
Wed 16/912:10 -
3 stops19h 50m
Deal found 10/8£794
Fri 4/906:05 -
3 stops20h 17m
Sun 20/912:10 -
2 stops16h 50m
Deal found 10/8£810
Thu 3/921:40 -
2 stops28h 42m
Sun 13/912:10 -
2 stops17h 15m
Deal found 7/8£891

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 12 August 2026.

Round-trip from

£474

One-way from

£335

Popular in

July

Cheapest in

February

Average price

£692
1/9-8/9
  • 1/9-8/9
  • 4 total stops
  • 28h 40m total
  • London to Illinois
Search Deals
10/9
  • 10/9
  • 3 total stops
  • 20h 40m total
  • London to Illinois
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (£84 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 August 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 12 August 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
Fastest return journey

LondonChicago

LTN London Luton - ORD Chicago O'Hare Intl

LTNORD

London Luton

Mon 7/9

08:15-14:00

1 stop11h 45m

Chicago O'Hare Intl

Mon 14/9

15:45-09:15

1 stop11h 30m

£487

LondonChicago

LTN London Luton - ORD Chicago O'Hare Intl

LTNORD

London Luton

Wed 9/9

19:20-16:10

2 stops26h 50m

Chicago O'Hare Intl

Wed 16/9

19:15-00:30

2 stops23h 15m

£495

LondonChicago

LTN London Luton - ORD Chicago O'Hare Intl

LTNORD

London Luton

Wed 30/9

18:10-12:40

2 stops24h 30m

Chicago O'Hare Intl

Thu 15/10

18:00-18:10

2 stops18h 10m

£512

LondonChicago

LTN London Luton - ORD Chicago O'Hare Intl

LTNORD

London Luton

Wed 7/10

18:30-19:50

2 stops31h 20m

Chicago O'Hare Intl

Fri 16/10

17:10-18:35

2 stops19h 25m

£535

LondonChicago

LTN London Luton - ORD Chicago O'Hare Intl

LTNORD

London Luton

Wed 23/9

15:15-09:40

2 stops24h 25m

Chicago O'Hare Intl

Tue 29/9

11:25-19:55

2 stops26h 30m

£566

LondonChicago

LTN London Luton - ORD Chicago O'Hare Intl

LTNORD

London Luton

Wed 9/9

18:10-13:10

2 stops25h 00m

Chicago O'Hare Intl

Wed 30/9

15:00-19:00

2 stops22h 00m

£570

LondonChicago

LTN London Luton - ORD Chicago O'Hare Intl

LTNORD

London Luton

Mon 14/12

15:35-17:20

1 stop31h 45m

Chicago O'Hare Intl

Wed 30/12

18:30-23:10

1 stop22h 40m

£573

LondonChicago

LTN London Luton - ORD Chicago O'Hare Intl

LTNORD

London Luton

Mon 12/10

06:05-17:50

2 stops17h 45m

Chicago O'Hare Intl

Fri 16/10

16:55-11:50

1 stop12h 55m

£589

LondonChicago

LTN London Luton - ORD Chicago O'Hare Intl

LTNORD

London Luton

Tue 8/9

13:40-16:10

2 stops32h 30m

Chicago O'Hare Intl

Tue 15/9

19:15-23:45

2 stops22h 30m

£590

LondonChicago

LTN London Luton - ORD Chicago O'Hare Intl

LTNORD

London Luton

Tue 20/10

19:50-14:30

2 stops24h 40m

Chicago O'Hare Intl

Wed 4/11

18:30-16:15

2 stops15h 45m

£602

Flights are sorted by cheapest return flights first.

Deals found on 12/8

Showing 1-10 of 45 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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Yes! Start tracking prices for Luton to Illinois flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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