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Cheap flights from Illinois to London Luton Airport from £255

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 19/5. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — LTN
21 Feb — 28 Feb1
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 22 January 2026.

Wed 4/219:20
ORD
-
LTN
2 stops21h 45m
Multiple Airlines
Sat 7/206:00
LTN
-
ORD
2 stops16h 45m
Multiple Airlines
Deal found 20/1£389
Tue 3/321:00
ORD
-
LTN
1 stop17h 05m
Multiple Airlines
Tue 10/309:00
LTN
-
ORD
1 stop14h 55m
Multiple Airlines
Deal found 20/1£394
Mon 13/415:45
ORD
-
LTN
1 stop9h 55m
Multiple Airlines
Tue 21/413:10
LTN
-
ORD
1 stop12h 05m
Multiple Airlines
Deal found 19/1£395
Sun 29/321:00
ORD
-
LTN
1 stop18h 40m
Multiple Airlines
Wed 8/406:15
LTN
-
ORD
1 stop13h 45m
Multiple Airlines
Deal found 21/1£396
Wed 25/316:50
ORD
-
LTN
1 stop10h 45m
Multiple Airlines
Tue 31/313:10
LTN
-
ORD
1 stop12h 05m
Multiple Airlines
Deal found 19/1£397
Tue 14/421:00
ORD
-
LTN
1 stop10h 25m
Multiple Airlines
Wed 22/406:15
LTN
-
ORD
1 stop13h 45m
Multiple Airlines
Deal found 19/1£398
Wed 15/421:00
ORD
-
LTN
1 stop18h 35m
Multiple Airlines
Wed 22/406:15
LTN
-
ORD
1 stop13h 45m
Multiple Airlines
Deal found 19/1£400
Tue 7/415:45
ORD
-
LTN
1 stop11h 30m
Multiple Airlines
Tue 14/413:10
LTN
-
ORD
1 stop12h 05m
Multiple Airlines
Deal found 20/1£401
Mon 16/316:50
ORD
-
LTN
2 stops24h 30m
Multiple Airlines
Tue 31/305:40
LTN
-
ORD
2 stops19h 35m
Multiple Airlines
Deal found 19/1£403
Fri 20/215:55
ORD
-
LTN
2 stops18h 20m
Multiple Airlines
Fri 27/205:50
LTN
-
ORD
2 stops17h 58m
Multiple Airlines
Deal found 21/1£404
Mon 23/316:50
ORD
-
LTN
1 stop10h 45m
Multiple Airlines
Thu 9/413:00
LTN
-
ORD
1 stop12h 15m
Multiple Airlines
Deal found 21/1£404
Tue 17/312:50
ORD
-
LTN
3 stops18h 15m
Multiple Airlines
Tue 31/305:40
LTN
-
ORD
2 stops19h 45m
Multiple Airlines
Deal found 20/1£405

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 22 January 2026.

Round-trip from

£389

One-way from

£255

Popular in

June

Cheapest in

April

Average price

£496
4/2-7/2
  • 4/2-7/2
  • 4 total stops
  • 38h 30m total
  • Illinois to London
Search Deals
19/5
  • 19/5
  • 2 total stops
  • 26h 41m total
  • Illinois to London
Search Deals
Highest demand for flights based on searches. 21% potential increase in price (£112 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 January 2026
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 22 January 2026.
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

Mon 13/4

15:45-07:40

1 stop9h 55m

London Luton

Tue 21/4

13:10-19:15

1 stop12h 05m

£395

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Sun 3/5

15:45-07:50

1 stop10h 05m

London Luton

Wed 13/5

06:15-14:00

1 stop13h 45m

£395

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Tue 14/4

15:45-09:15

1 stop11h 30m

London Luton

Tue 21/4

13:10-19:15

1 stop12h 05m

£397

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Tue 31/3

16:15-13:25

2 stops15h 10m

London Luton

Tue 7/4

08:05-18:15

2 stops16h 10m

£409

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Mon 27/4

15:45-12:45

1 stop15h 00m

London Luton

Tue 5/5

08:05-14:00

1 stop11h 55m

£411

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Tue 14/4

19:25-12:55

1 stop11h 30m

London Luton

Wed 22/4

06:15-18:15

1 stop18h 00m

£415

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Wed 15/4

21:00-15:25

1 stop12h 25m

London Luton

Thu 23/4

09:25-19:15

1 stop15h 50m

£420

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Sat 14/2

19:20-20:15

3 stops18h 55m

London Luton

Sat 21/2

06:00-16:45

2 stops16h 45m

£433

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Fri 17/4

21:00-17:25

1 stop14h 25m

London Luton

Tue 21/4

13:10-19:15

1 stop12h 05m

£433

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Tue 24/3

22:55-18:00

1 stop14h 05m

London Luton

Thu 9/4

08:20-19:50

1 stop17h 30m

£442

Flights are sorted by cheapest return flights first.

Deals found on 19/1

Showing 1-10 of 45 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, Chicago Midway - London Luton and Lambert-St Louis - 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
Luton
Croydon
Wembley
Gatwick
Slough
Hounslow
Ilford
Brentford
Hayes
Colchester
Watford
Crawley
Bedford
Kingston upon Thames
Chelmsford
Eastbourne
Romford
Folkestone
Southend-on-Sea

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Alternative routes for Illinois to Luton

See prices for flight routes from nearby airports that may be better suited for you.
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How does Cheapflights help users find flights from Illinois to Luton?

Cheapflights makes it easy to find Illinois to Luton flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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Can Cheapflights find flights from Illinois to Luton with no change fees?

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