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Cheap flights from London Luton Airport to Illinois from £384

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 28/6. 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

Cheap flight deals from Luton to Illinois

Keep the following information in mind while searching for Luton to Illinois flight deals. Data was last updated 18 April 2025.

Round-trip from

£470

One-way from

£384

Popular in

August

Cheapest in

February

Average price

£510
2/6-9/6
  • 2/6-9/6
  • 6 total stops
  • 62h 45m total
  • London to Illinois
28/6
  • 28/6
  • 2 total stops
  • 31h 54m total
  • London to Illinois
Highest demand for flights based on searches. 12% potential increase in price (£60 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£11 potential savings vs. average return price).
Average for round-trip flights in April 2025

Find flight deals from Luton to Illinois

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 18 April 2025.

Mon 2/611:50LTN - ORD
3 stops33h 15mMultiple Airlines
Mon 9/610:40ORD - LTN
3 stops29h 30mMultiple Airlines
Deal found 17/4£470
Wed 18/606:15LTN - STL
3 stops40h 49mMultiple Airlines
Thu 26/607:30STL - LTN
2 stops32h 50mMultiple Airlines
Deal found 17/4£760

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 18 April 2025.
Use the filters below to find and compare flights from London Luton Airport to Illinois that are best for you.

Fly from

Luton

Fly to

Illinois

Route

Depart

Return

Price

LondonChicago

LTN - ORD

LTNORD

London Luton

Mon 2/6

11:50-15:05

3 stops33h 15m

Chicago O'Hare Intl

Mon 9/6

10:40-22:10

3 stops29h 30m

£470

LondonSt. Louis

LTN - STL

LTNSTL

London Luton

Wed 18/6

06:15-17:04

3 stops40h 49m

Lambert-St Louis

Thu 26/6

07:30-22:20

2 stops32h 50m

£760

LondonChicago

LTN - ORD

LTNORD

London Luton

Sat 28/6

07:15-09:09

2 stops31h 54m

£384

LondonSt. Louis

LTN - STL

LTNSTL

London Luton

Wed 4/6

10:00-19:43

3 stops39h 43m

£385

Flights are sorted by cheapest return flights first.

Deals found on 17/4

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

What is the cheapest time of day to fly from LTN to IL?

Find hourly flight availability from Luton to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 18 April 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London Luton Airport to Illinois as you normally would.

Rainfall in Illinois by month

Plan your trip to Illinois by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Illinois ranges from 43.0 - 125.0 inches per month. August is typically the wettest month, when rainfall can reach 125.0 mm. January is typically the driest time to visit Illinois when rainfall is around 43.0 mm.

Temperature in Illinois by month

Plan your trip to Illinois by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -5.0 C).

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.

  • What is the cheapest month to book a flight from London Luton Airport to Illinois?

    Currently, January is the cheapest month in which you can book a flight from London Luton Airport to Illinois (average of £595). Flying from London Luton Airport to Illinois in July is currently the most expensive (average of £843). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Alternative routes for Luton to Illinois

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