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Cheap flights from London Luton Airport to Illinois from £313

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.
LTN — ORD
23 Apr — 30 Apr1
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 24 March 2026.

Thu 14/515:50
LTN
-
ORD
2 stops30h 20m
Multiple Airlines
Thu 28/519:15
ORD
-
LTN
2 stops22h 10m
Multiple Airlines
Deal found 22/3£471
Thu 23/409:25
LTN
-
ORD
2 stops14h 50m
Multiple Airlines
Mon 27/419:25
ORD
-
LTN
2 stops21h 25m
Multiple Airlines
Deal found 23/3£491
Wed 22/406:15
LTN
-
ORD
2 stops18h 00m
Multiple Airlines
Wed 29/419:25
ORD
-
LTN
2 stops19h 50m
Multiple Airlines
Deal found 19/3£492
Thu 23/409:25
LTN
-
ORD
2 stops14h 50m
Multiple Airlines
Mon 4/519:25
ORD
-
LTN
2 stops21h 25m
Multiple Airlines
Deal found 19/3£501
Mon 20/413:00
LTN
-
ORD
2 stops30h 20m
Multiple Airlines
Mon 4/514:20
ORD
-
LTN
2 stops18h 00m
Multiple Airlines
Deal found 19/3£522
Mon 4/508:15
LTN
-
ORD
2 stops16h 00m
Multiple Airlines
Tue 12/519:25
ORD
-
LTN
2 stops14h 05m
Multiple Airlines
Deal found 23/3£527
Sat 18/411:00
LTN
-
ORD
2 stops13h 15m
Multiple Airlines
Tue 28/419:25
ORD
-
LTN
2 stops20h 45m
Multiple Airlines
Deal found 21/3£530
Mon 20/408:15
LTN
-
ORD
2 stops17h 10m
Multiple Airlines
Wed 22/419:25
ORD
-
LTN
2 stops21h 15m
Multiple Airlines
Deal found 23/3£530
Thu 7/506:05
LTN
-
STL
2 stops20h 20m
Multiple Airlines
Thu 14/513:05
STL
-
LTN
2 stops16h 50m
Multiple Airlines
Deal found 23/3£911
Mon 20/417:30
LTN
-
STL
3 stops34h 47m
Multiple Airlines
Mon 27/417:21
STL
-
LTN
3 stops17h 49m
Multiple Airlines
Deal found 23/3£1,031
Sun 31/519:55
LTN
-
STL
3 stops30h 30m
Multiple Airlines
Mon 31/812:10
STL
-
LTN
2 stops18h 35m
Multiple Airlines
Deal found 23/3£1,112
Tue 19/521:50
LTN
-
STL
2 stops21h 35m
Multiple Airlines
Tue 26/514:25
STL
-
LTN
2 stops19h 05m
Multiple Airlines
Deal found 20/3£1,324

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 24 March 2026.

Round-trip from

£471

One-way from

£313

Popular in

July

Cheapest in

September

Average price

£561
14/5-28/5
  • 14/5-28/5
  • 4 total stops
  • 52h 30m total
  • London to Illinois
Search Deals
19/5
  • 19/5
  • 3 total stops
  • 31h 19m total
  • London to Illinois
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£56 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£9 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 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 24 March 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

Mon 20/4

09:15-09:10

3 stops29h 55m

Chicago O'Hare Intl

Mon 27/4

19:25-22:05

2 stops20h 40m

£556

LondonChicago

LTN - ORD

LTNORD

London Luton

Mon 20/4

07:55-00:24

3 stops46h 29m

Chicago O'Hare Intl

Mon 4/5

19:25-22:05

2 stops20h 40m

£583

LondonChicago

LTN - ORD

LTNORD

London Luton

Sun 3/5

09:00-19:25

2 stops16h 25m

Chicago O'Hare Intl

Sun 10/5

22:25-22:20

2 stops17h 55m

£601

LondonChicago

LTN - ORD

LTNORD

London Luton

Wed 2/9

08:25-19:50

1 stop17h 25m

Chicago O'Hare Intl

Thu 17/9

21:50-19:05

1 stop15h 15m

£604

LondonChicago

LTN - ORD

LTNORD

London Luton

Mon 7/9

08:25-19:50

1 stop17h 25m

Chicago O'Hare Intl

Fri 18/9

21:50-19:05

1 stop15h 15m

£646
Fastest return journey

LondonChicago

LTN - ORD

LTNORD

London Luton

Wed 29/4

06:15-14:00

1 stop13h 45m

Chicago O'Hare Intl

Sat 9/5

15:45-08:20

1 stop10h 35m

£668

LondonChicago

LTN - ORD

LTNORD

London Luton

Thu 28/5

08:25-19:50

1 stop17h 25m

Chicago O'Hare Intl

Mon 8/6

17:10-14:45

1 stop15h 35m

£676

LondonChicago

LTN - ORD

LTNORD

London Luton

Mon 22/6

08:25-19:50

1 stop17h 25m

Chicago O'Hare Intl

Mon 29/6

17:10-19:05

1 stop19h 55m

£693

LondonChicago

LTN - ORD

LTNORD

London Luton

Tue 7/4

16:10-16:00

2 stops29h 50m

Chicago O'Hare Intl

Fri 10/4

22:25-16:20

2 stops11h 55m

£696

LondonChicago

LTN - ORD

LTNORD

London Luton

Sun 26/4

08:25-19:50

1 stop17h 25m

Chicago O'Hare Intl

Fri 22/5

21:50-19:05

1 stop15h 15m

£773

Flights are sorted by cheapest return flights first.

Deals found on 19/3

Showing 1-10 of 41 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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