In terms of precipitation, rainfall in Chicago 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 Chicago when rainfall is around 43.0 mm.

If weather is an important factor for your trip to Chicago, 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).

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

When flying from London Luton Airport to Chicago, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

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

How can I find direct flights from Luton to Chicago?

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

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

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

£344+ Cheap Flights from London Luton Airport to Chicago

Cheap flight deals from Luton to Chicago

Enter your travel dates to find the best prices.

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Best

Last-minute

One-way

Cheapest flights from Luton to Chicago
Explore the most affordable flight options available from Luton to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 September 2026.

Thu 1/1005:40 -

2 stops19h 35m

Thu 15/1015:45 -

2 stops20h 20m

Deal found 13/9£529

Mon 2/1106:15 -

1 stop14h 40m

Mon 16/1117:40 -

1 stop14h 05m

Deal found 12/9£529

Thu 17/913:00 -

1 stop12h 15m

Wed 30/915:45 -

1 stop11h 15m

Deal found 8/9£530

Wed 30/909:15 -

2 stops18h 10m

Wed 7/1019:25 -

2 stops19h 40m

Deal found 8/9£533

Wed 14/1013:50 -

1 stop11h 25m

Wed 21/1015:45 -

1 stop14h 50m

Deal found 8/9£534

Fri 6/1108:20 -

2 stops15h 00m

Wed 11/1118:30 -

2 stops17h 35m

Deal found 11/9£534

Mon 23/1108:20 -

2 stops15h 00m

Tue 1/1213:55 -

2 stops17h 50m

Deal found 9/9£538

Tue 6/1008:00 -

2 stops34h 35m

Mon 12/1014:20 -

2 stops28h 05m

Deal found 8/9£539

Thu 17/913:00 -

1 stop12h 15m

Sun 20/921:00 -

1 stop12h 25m

Deal found 10/9£540

Thu 5/1108:20 -

2 stops15h 00m

Tue 10/1115:55 -

2 stops15h 50m

Deal found 9/9£541

Find flight deals from Luton to Chicago

Round-trip from	£529
One-way from	£344
Popular in	August
Cheapest in	February
Average price	£602

1/10-15/10
4 total stops
39h 55m total
London to Chicago

Search Deals

30/10-31/12
2 total stops
41h 15m total
London to Chicago

Search Deals

Highest demand for flights based on searches. 12% potential increase in price (£64 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£11 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from London Luton Airport to Chicago that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonChicago

LTN London Luton - ORD Chicago O'Hare Intl

LTNORD

London Luton

Tue 20/10

14:45-12:40

2 stops51h 55m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£367

LondonChicago

LTN London Luton - ORD Chicago O'Hare Intl

LTNORD

London Luton

Fri 2/10

08:30-18:15

2 stops15h 45m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£376

LondonChicago

LTN London Luton - ORD Chicago O'Hare Intl

LTNORD

London Luton

Tue 5/1

09:10-17:20

2 stops38h 10m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£390

LondonChicago

LTN London Luton - ORD Chicago O'Hare Intl

LTNORD

London Luton

Fri 16/10

08:30-18:15

2 stops15h 45m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£394

LondonChicago

LTN London Luton - ORD Chicago O'Hare Intl

LTNORD

London Luton

Wed 30/9

21:50-18:15

3 stops26h 25m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£402

LondonChicago

LTN London Luton - ORD Chicago O'Hare Intl

LTNORD

London Luton

Mon 2/11

15:40-17:20

1 stop31h 40m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£409

Fastest return journey

LondonChicago

LTN London Luton - ORD Chicago O'Hare Intl

LTNORD

London Luton

Wed 6/1

08:00-17:20

1 stop15h 20m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£412

LondonChicago

LTN London Luton - ORD Chicago O'Hare Intl

LTNORD

London Luton

Sun 22/11

06:00-17:20

1 stop17h 20m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£416

LondonChicago

LTN London Luton - ORD Chicago O'Hare Intl

LTNORD

London Luton

Mon 14/12

15:35-17:20

1 stop31h 45m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£416

LondonChicago

LTN London Luton - ORD Chicago O'Hare Intl

LTNORD

London Luton

Sun 27/12

15:55-14:10

1 stop28h 15m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£420

Flights are sorted by cheapest return flights first.

Deals found on 12/9

Showing 1-10 of 22 resultsSorted by cheapest first

Best time to book a flight from Luton to Chicago

Have a flexible travel schedule? Discover the best time to fly to Chicago from Luton with our price prediction graph.

LTN-CHI

LTN-ORD

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 Chicago

LTN-CHI

LTN-ORD

No data available for this route at this time. Please check back soon.

Related info for your journey

Can I find deals for flights from Luton to Chicago that include hotel bookings?
Yes. In addition to deals on Luton to Chicago flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Luton to Chicago?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Luton to Chicago.
Can I find deals for business class flights from Luton to Chicago?
Yes. Cheapflights offers flight deals from Luton to Chicago by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Browse thousands of different options on Cheapflights for your next trip

Alternative routes

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Complete your trip

Direct flights to Illinois

Flights by cabin class

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Alternative routes for Luton to Chicago

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

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Chicago from Luton today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Luton to Chicago?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Luton to Chicago for you. Better yet — we are completely free to use.

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

Need flexible booking options for your flight to Chicago from Luton? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Luton to Chicago become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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Cheap flights from London Luton Airport to Chicago from £344

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 30/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Luton to Chicago

Cheapest flights from Luton to ChicagoExplore the most affordable flight options available from Luton to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 September 2026.

Explore the most affordable flight options available from Luton to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 September 2026.

Best flights from Luton to ChicagoDiscover carefully curated flight deals from Luton to Chicago that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 13 September 2026.

Discover carefully curated flight deals from Luton to Chicago that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 13 September 2026.

Last-minute flights from Luton to ChicagoDiscover last-minute flight deals from Luton to Chicago. Data last updated 13 September 2026 and is based on user searches.

Discover last-minute flight deals from Luton to Chicago. Data last updated 13 September 2026 and is based on user searches.

One-way flights from Luton to ChicagoSearch for one-way flight options from Luton to Chicago. Find affordable one-way fares based on user searches. Data last updated 13 September 2026.

Search for one-way flight options from Luton to Chicago. Find affordable one-way fares based on user searches. Data last updated 13 September 2026.

Find flight deals from Luton to Chicago

Round-trip from

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Popular in

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Cheapflights Fare Finder

Use the filters below to find and compare flights from London Luton Airport to Chicago that are best for you.

Best time to book a flight from Luton to Chicago

Have a flexible travel schedule? Discover the best time to fly to Chicago from Luton with our price prediction graph.

Cheapflights Insights

Related info for your journey

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

How can I find direct flights from Luton to Chicago?

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Luton to Chicago

See prices for flight routes from nearby airports that may be better suited for you.

Other flights to Chicago

Explore flights to Chicago departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 13 September 2026.

Complete your trip

Complete your trip to Chicago by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to Illinois

Book a non-stop flight to one of these other cities located in Illinois.

Search flights from Luton to Chicago by cabin class

Find flights from Luton to Chicago, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Luton and Chicago flights

Browse other Luton and Chicago flight options. Last updated on 13 September 2026.

Other flights from Luton

Browse through other flights departing from Luton. Flights are based on user searches made on Cheapflights and were last updated on 13 September 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Fly with Cheapflights

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

Why should you use Cheapflights to find cheap flight tickets from Luton to Chicago?

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

Can Cheapflights notify me if prices for flights from Luton to Chicago become cheaper?

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Cheapest flights from Luton to Chicago
Explore the most affordable flight options available from Luton to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 September 2026.

Best flights from Luton to Chicago
Discover carefully curated flight deals from Luton to Chicago that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 13 September 2026.

Last-minute flights from Luton to Chicago
Discover last-minute flight deals from Luton to Chicago. Data last updated 13 September 2026 and is based on user searches.

One-way flights from Luton to Chicago
Search for one-way flight options from Luton to Chicago. Find affordable one-way fares based on user searches. Data last updated 13 September 2026.