In terms of precipitation, rainfall in Chicago O'Hare Intl Airport 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 O'Hare Intl Airport when rainfall is around 43.0 mm.

If weather is an important factor for your trip to Chicago O'Hare Intl Airport, 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 ORD?

When flying from London Luton Airport to Chicago O'Hare Intl Airport, 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 O'Hare Intl that include hotel bookings?

Yes. In addition to deals on Luton to O'Hare Intl flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Luton to O'Hare Intl?

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

Can I find deals for business class flights from Luton to O'Hare Intl?

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

£358+ Cheap Flights from London Luton Airport to Chicago O'Hare Intl Airport

Cheap flight deals from Luton to O'Hare Intl

Enter your travel dates to find the best prices.

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Cheapest flights from Luton to O'Hare Intl
Explore the most affordable flight options available from Luton to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 27 September 2026.

Thu 22/1013:00 -

1 stop12h 15m

Mon 26/1016:55 -

1 stop12h 50m

Deal found 25/9£539

Mon 16/1108:20 -

2 stops15h 00m

Mon 30/1118:30 -

2 stops13h 40m

Deal found 25/9£540

Fri 25/1221:45 -

2 stops25h 35m

Sat 9/118:30 -

2 stops17h 05m

Deal found 23/9£542

Mon 23/1119:10 -

2 stops25h 45m

Sun 29/1115:55 -

1 stop11h 15m

Deal found 24/9£544

Mon 5/1012:25 -

2 stops30h 10m

Wed 14/1019:05 -

2 stops20h 10m

Deal found 25/9£547

Tue 27/1007:45 -

1 stop12h 25m

Tue 27/1021:05 -

1 stop17h 55m

Deal found 26/9£547

Tue 10/1121:30 -

1 stop23h 25m

Sun 15/1117:40 -

1 stop21h 10m

Deal found 24/9£550

Wed 2/1207:25 -

2 stops15h 55m

Tue 8/1218:30 -

2 stops13h 20m

Deal found 24/9£551

Find flight deals from Luton to O'Hare Intl

Round-trip from	£539
One-way from	£358
Popular in	August
Cheapest in	February
Average price	£627

22/10-26/10
2 total stops
25h 05m total
London to Chicago

Search Deals

26/11-31/12
3 total stops
34h 15m total
London to Chicago

Search Deals

Highest demand for flights based on searches. 12% potential increase in price (£65 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£10 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 O'Hare Intl Airport 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

Wed 25/11

07:25-18:20

1 stop16h 55m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£372

Fastest return journey

LondonChicago

LTN London Luton - ORD Chicago O'Hare Intl

LTNORD

London Luton

Tue 24/11

07:45-14:10

1 stop12h 25m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£377

LondonChicago

LTN London Luton - ORD Chicago O'Hare Intl

LTNORD

London Luton

Wed 14/10

08:00-12:40

2 stops34h 40m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£378

LondonChicago

LTN London Luton - ORD Chicago O'Hare Intl

LTNORD

London Luton

Wed 30/9

15:35-12:40

3 stops27h 05m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£385

LondonChicago

LTN London Luton - ORD Chicago O'Hare Intl

LTNORD

London Luton

Mon 30/11

07:45-14:55

1 stop37h 10m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£386

LondonChicago

LTN London Luton - ORD Chicago O'Hare Intl

LTNORD

London Luton

Wed 11/11

17:00-14:10

1 stop27h 10m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£395

LondonChicago

LTN London Luton - ORD Chicago O'Hare Intl

LTNORD

London Luton

Wed 28/10

21:45-18:20

2 stops25h 35m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£398

LondonChicago

LTN London Luton - ORD Chicago O'Hare Intl

LTNORD

London Luton

Wed 21/10

17:00-12:40

3 stops25h 40m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£405

LondonChicago

LTN London Luton - ORD Chicago O'Hare Intl

LTNORD

London Luton

Sun 29/11

19:05-14:55

3 stops49h 50m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£415

LondonChicago

LTN London Luton - ORD Chicago O'Hare Intl

LTNORD

London Luton

Sun 11/10

14:05-18:15

3 stops34h 10m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£425

Flights are sorted by cheapest return flights first.

Deals found on 24/9

Showing 1-10 of 20 resultsSorted by cheapest first

Best time to book a flight from Luton to O'Hare Intl

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

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.

Related info for your journey

Can I find deals for flights from Luton to O'Hare Intl that include hotel bookings?
Yes. In addition to deals on Luton to O'Hare Intl flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Luton to O'Hare Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Luton to O'Hare Intl.
Can I find deals for business class flights from Luton to O'Hare Intl?
Yes. Cheapflights offers flight deals from Luton to O'Hare Intl 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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Heathrow to Midway flights

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Can Cheapflights find flights from Luton to O'Hare Intl with no change fees?

Certainly. Search results for flights to O'Hare Intl from Luton shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Luton to O'Hare Intl become cheaper?

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Cheap flights from London Luton Airport to Chicago O'Hare Intl Airport from £358

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 26/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Luton to O'Hare Intl

Cheapest flights from Luton to O'Hare IntlExplore the most affordable flight options available from Luton to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 27 September 2026.

Explore the most affordable flight options available from Luton to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 27 September 2026.

Best flights from Luton to O'Hare IntlDiscover carefully curated flight deals from Luton to O'Hare Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 27 September 2026.

Discover carefully curated flight deals from Luton to O'Hare Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 27 September 2026.

Last-minute flights from Luton to O'Hare IntlDiscover last-minute flight deals from Luton to O'Hare Intl. Data last updated 27 September 2026 and is based on user searches.

Discover last-minute flight deals from Luton to O'Hare Intl. Data last updated 27 September 2026 and is based on user searches.

One-way flights from Luton to O'Hare IntlSearch for one-way flight options from Luton to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated 27 September 2026.

Search for one-way flight options from Luton to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated 27 September 2026.

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

Best time to book a flight from Luton to O'Hare Intl

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

Related info for your journey

Can I find deals for flights from Luton to O'Hare Intl that include hotel bookings?

How can I find direct flights from Luton to O'Hare Intl?

Can I find deals for business class flights from Luton to O'Hare Intl?

Travelling to a place near Chicago O'Hare Intl Airport?

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Alternative routes for Luton to O'Hare Intl

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Complete your trip

Complete your trip to O'Hare Intl by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to Illinois

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Search flights from Luton to O'Hare Intl by cabin class

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

Other flights to O'Hare Intl

Explore flights to O'Hare Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 27 September 2026.

Luton and O'Hare Intl flights

Browse other Luton and O'Hare Intl flight options. Last updated on 27 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 27 September 2026.

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Can Cheapflights notify me if prices for flights from Luton to O'Hare Intl become cheaper?

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Cheapest flights from Luton to O'Hare Intl
Explore the most affordable flight options available from Luton to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 27 September 2026.

Best flights from Luton to O'Hare Intl
Discover carefully curated flight deals from Luton to O'Hare Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 27 September 2026.

Last-minute flights from Luton to O'Hare Intl
Discover last-minute flight deals from Luton to O'Hare Intl. Data last updated 27 September 2026 and is based on user searches.

One-way flights from Luton to O'Hare Intl
Search for one-way flight options from Luton to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated 27 September 2026.