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Cheap flights from Illinois to London Luton Airport from £271

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 12/5. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — LTN
10 Apr — 17 Apr1
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 11 March 2026.

Mon 20/419:15
ORD
-
LTN
2 stops21h 35m
Multiple Airlines
Fri 24/412:50
LTN
-
ORD
2 stops33h 20m
Multiple Airlines
Deal found 7/3£431
Fri 17/419:15
ORD
-
LTN
3 stops23h 15m
Multiple Airlines
Thu 23/415:50
LTN
-
ORD
2 stops30h 20m
Multiple Airlines
Deal found 10/3£437
Tue 14/419:25
ORD
-
LTN
2 stops14h 05m
Multiple Airlines
Tue 21/409:40
LTN
-
ORD
2 stops14h 35m
Multiple Airlines
Deal found 9/3£439
Mon 20/419:15
ORD
-
LTN
2 stops21h 35m
Multiple Airlines
Thu 23/413:00
LTN
-
ORD
2 stops33h 10m
Multiple Airlines
Deal found 9/3£440
Tue 21/419:25
ORD
-
LTN
2 stops14h 05m
Multiple Airlines
Tue 28/409:40
LTN
-
ORD
2 stops14h 35m
Multiple Airlines
Deal found 7/3£441
Fri 17/419:15
ORD
-
LTN
2 stops23h 15m
Multiple Airlines
Tue 21/416:10
LTN
-
ORD
2 stops30h 00m
Multiple Airlines
Deal found 9/3£447
Sun 26/415:45
ORD
-
LTN
1 stop13h 40m
Multiple Airlines
Sun 3/509:00
LTN
-
ORD
1 stop16h 15m
Multiple Airlines
Deal found 7/3£451
Wed 15/416:05
STL
-
LTN
2 stops23h 10m
Multiple Airlines
Wed 22/406:15
LTN
-
STL
2 stops15h 10m
Multiple Airlines
Deal found 9/3£646
Sun 10/513:00
STL
-
LTN
2 stops16h 00m
Multiple Airlines
Sat 16/518:15
LTN
-
STL
2 stops25h 10m
Multiple Airlines
Deal found 8/3£661
Fri 1/513:00
STL
-
LTN
2 stops18h 50m
Multiple Airlines
Thu 14/505:40
LTN
-
STL
2 stops20h 45m
Multiple Airlines
Deal found 6/3£713
Sun 3/513:00
STL
-
LTN
2 stops14h 25m
Multiple Airlines
Tue 12/509:45
LTN
-
STL
2 stops16h 40m
Multiple Airlines
Deal found 10/3£731
Thu 7/514:20
STL
-
LTN
2 stops26h 00m
Multiple Airlines
Thu 14/518:05
LTN
-
STL
2 stops25h 20m
Multiple Airlines
Deal found 8/3£767

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 11 March 2026.

Round-trip from

£431

One-way from

£271

Popular in

June

Cheapest in

February

Average price

£524
20/4-24/4
  • 20/4-24/4
  • 4 total stops
  • 54h 55m total
  • Illinois to London
Search Deals
12/5
  • 12/5
  • 2 total stops
  • 36h 51m 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 (£21 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 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 11 March 2026.
Use the filters below to find and compare flights from Illinois to London Luton Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Wed 6/5

19:25-16:35

2 stops15h 10m

London Luton

Wed 13/5

06:15-18:15

2 stops18h 00m

£479

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Fri 1/5

21:00-17:25

1 stop14h 25m

London Luton

Thu 7/5

13:00-19:15

1 stop12h 15m

£484

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Sun 5/4

14:00-11:25

2 stops15h 25m

London Luton

Sat 18/4

21:25-19:55

2 stops28h 30m

£539

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Mon 20/4

15:45-12:45

1 stop15h 00m

London Luton

Thu 30/4

13:00-19:15

1 stop12h 15m

£616

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Tue 14/4

15:45-09:15

1 stop11h 30m

London Luton

Wed 29/4

06:15-19:15

1 stop19h 00m

£617

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Mon 17/8

22:25-12:55

1 stop32h 30m

London Luton

Wed 26/8

06:15-21:25

1 stop21h 10m

£634

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Sat 22/8

15:45-08:20

1 stop10h 35m

London Luton

Sat 29/8

11:00-19:48

2 stops14h 48m

£647

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Sun 24/5

15:45-11:25

1 stop13h 40m

London Luton

Tue 2/6

13:10-19:15

1 stop12h 05m

£652

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Tue 12/5

21:00-13:25

1 stop10h 25m

London Luton

Mon 18/5

06:25-17:50

2 stops17h 25m

£658

St. LouisLondon

STL - LTN

STLLTN

Lambert-St Louis

Sun 10/5

13:00-11:00

2 stops16h 00m

London Luton

Sat 16/5

18:15-13:25

2 stops25h 10m

£661

Flights are sorted by cheapest return flights first.

Deals found on 10/3

Showing 1-10 of 51 resultsSorted by cheapest first
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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
Wembley
Croydon
Luton
Hounslow
Slough
Gatwick
Ilford
Hayes
Brentford
Colchester
Guildford
Watford
Kingston upon Thames
Chelmsford
Eastbourne
Ipswich
Bedford
Romford
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?

Yes! Cheapflights helps users easily find flights from Illinois to Luton with no change fees.

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