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Cheap flights from Illinois to London Luton Airport from £240

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 21/1. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — LTN
7 Jan — 14 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Illinois to Luton

Enter your travel dates to find the best prices.

Cheapest flights from Illinois to Luton
Explore the most affordable flight options available from Illinois to Luton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 8 December 2025.

Mon 8/1208:00ORD - LTN
2 stops23h 40mMultiple Airlines
Sun 14/1216:30LTN - ORD
2 stops26h 40mMultiple Airlines
Deal found 6/12£601
Mon 8/1216:20ORD - LTN
2 stops19h 55mMultiple Airlines
Mon 15/1208:30LTN - ORD
2 stops17h 35mMultiple Airlines
Deal found 7/12£607
Tue 9/1207:05ORD - LTN
2 stops32h 40mMultiple Airlines
Sat 13/1216:00LTN - ORD
2 stops34h 05mMultiple Airlines
Deal found 7/12£611
Fri 12/1218:30ORD - LTN
2 stops19h 40mMultiple Airlines
Tue 16/1209:00LTN - ORD
2 stops14h 20mMultiple Airlines
Deal found 6/12£613
Wed 10/1218:30ORD - LTN
2 stops22h 35mMultiple Airlines
Wed 17/1206:50LTN - ORD
2 stops16h 30mMultiple Airlines
Deal found 5/12£622
Sun 28/1210:00ORD - LTN
2 stops24h 45mMultiple Airlines
Sun 11/115:15LTN - ORD
2 stops31h 05mMultiple Airlines
Deal found 7/12£628
Mon 8/1216:25ORD - LTN
2 stops22h 40mMultiple Airlines
Tue 16/1221:50LTN - ORD
2 stops22h 30mMultiple Airlines
Deal found 7/12£640
Sun 7/1220:25ORD - LTN
2 stops19h 35mMultiple Airlines
Tue 16/1209:00LTN - ORD
2 stops36h 00mMultiple Airlines
Deal found 5/12£640
Sun 7/1216:05STL - LTN
2 stops24h 35mMultiple Airlines
Sat 13/1216:00LTN - STL
2 stops27h 55mMultiple Airlines
Deal found 5/12£813
Fri 12/1216:49STL - LTN
2 stops21h 21mMultiple Airlines
Fri 19/1205:50LTN - STL
2 stops15h 39mMultiple Airlines
Deal found 5/12£1,770

Find flight deals from Illinois to Luton

Keep the following information in mind while searching for Illinois to Luton flight deals. Data was last updated 8 December 2025.

Round-trip from

£417

One-way from

£240

Popular in

June

Cheapest in

September

Average price

£625
26/2-4/3
  • 26/2-4/3
  • 4 total stops
  • 46h 45m total
  • Illinois to London
Search Deals
21/1
  • 21/1
  • 3 total stops
  • 44h 38m total
  • Illinois to London
Search Deals
Highest demand for flights based on searches. 21% potential increase in price (£115 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£20 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Illinois to Luton 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 8 December 2025.
Use the filters below to find and compare flights from Illinois to London Luton Airport that are best for you.

Fly from

Illinois

Fly to

Luton

Route

Depart

Return

Price

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Thu 26/2

19:20-22:10

2 stops20h 50m

London Luton

Wed 4/3

20:50-16:45

2 stops25h 55m

£417

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Sat 14/2

19:20-18:15

2 stops16h 55m

London Luton

Sun 22/2

14:35-16:45

2 stops32h 10m

£433

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Wed 11/2

21:55-18:15

1 stop14h 20m

London Luton

Wed 18/2

08:30-20:00

1 stop17h 30m

£437

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Wed 14/1

21:55-18:15

1 stop14h 20m

London Luton

Sun 25/1

08:30-20:00

1 stop17h 30m

£439

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Tue 17/3

15:55-18:00

3 stops21h 05m

London Luton

Mon 23/3

14:35-17:20

2 stops31h 45m

£440

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Mon 12/1

18:30-14:00

1 stop13h 30m

London Luton

Wed 21/1

08:00-17:20

1 stop15h 20m

£445

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Tue 20/1

18:30-14:50

1 stop14h 20m

London Luton

Tue 27/1

07:00-17:20

1 stop16h 20m

£445

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Fri 23/1

21:55-18:15

1 stop14h 20m

London Luton

Sat 7/2

08:30-20:00

1 stop17h 30m

£448

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Thu 5/2

21:55-17:50

1 stop13h 55m

London Luton

Fri 13/2

08:30-20:00

1 stop17h 30m

£456

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Mon 12/1

18:30-14:00

1 stop13h 30m

London Luton

Thu 22/1

06:00-17:20

1 stop17h 20m

£458

Flights are sorted by cheapest return flights first.

Deals found on 7/12

Showing 1-10 of 41 results
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Best time to book a flight from Illinois to Luton

Have a flexible travel schedule? Discover the best time to fly to Luton from Illinois 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 Illinois to London Luton Airport
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 Illinois to Luton. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the most popular routes from Illinois to London Luton Airport?

    The most popular flight routes from Illinois to London Luton Airport are Chicago O'Hare Intl - London Luton, Lambert-St Louis - London Luton and Chicago Midway - London Luton.

  • Can I find deals for flights from Illinois to Luton that include hotel bookings?

    Yes. In addition to deals on Illinois to Luton flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Luton?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Luton.

  • Can I find deals for business class flights from Illinois to Luton?

    Yes. Cheapflights offers flight deals from Illinois to Luton by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Travelling to a place near London Luton Airport?

Book flights to London Luton Airport if you plan to visit one of these locations
Milton Keynes
Croydon
Hounslow
Slough
Gatwick
Luton
Ilford
Wembley
Colchester
Brentford
Watford
Hayes
Crawley
Deal
Winchester
Romford
Bedford
Chichester
Guildford
Ipswich

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Alternative routes for Illinois to Luton

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How does Cheapflights help users find flights from Illinois to Luton?

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