How do most travelers feel about Finnair?

Cheapflights users who travel with Finnair (a popular airline from London to Chicago O'Hare Intl Airport) have rated them a 7.0/10. This rating comes from 544 reviews. If you are looking to travel LON-ORD, search your dates above.

Can I get a flight from London to Chicago O'Hare Intl Airport on Finnair for under £700?

9 Finnair flights from LON to ORD have recently been found on Cheapflights for under £700. Click here to find the best deals to Chicago O'Hare Intl Airport for your desired dates.

£403+ Finnair Flights from London to O'Hare Intl

Cheapflights users flying from London to Chicago on Finnair typically fly into Chicago O'Hare Intl and depart from London Heathrow. Select your dates above for pricing.

Finnair flights from London to O'Hare Intl in 2025

One-way from	£405
Return from	£403
Popular in	July
Cheapest in	February
Average price (all airlines)	£452

Finnair
16/12
Nonstop
8h 50m total
London to Chicago

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Finnair
9/11-13/11
1 total stop
22h 00m total
London to Chicago

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Highest demand for flights from London to Chicago O'Hare Intl; 12% potential price increase.

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Best time to find cheap flights from London to Chicago O'Hare Intl; 2% potential price drop.

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Average price for all London to Chicago O'Hare Intl flights (one-way and round-trip).

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Can I get a flight from London to Chicago O'Hare Intl Airport on Finnair for under £700?
9 Finnair flights from LON to ORD have recently been found on Cheapflights for under £700. Click here to find the best deals to Chicago O'Hare Intl Airport for your desired dates.
How do most travelers feel about Finnair?
Cheapflights users who travel with Finnair (a popular airline from London to Chicago O'Hare Intl Airport) have rated them a 7.0/10. This rating comes from 544 reviews. If you are looking to travel LON-ORD, search your dates above.

Find Finnair flight deals from London to O'Hare Intl

Cheapest Finnair flights from London to O'Hare Intl
Explore the most affordable Finnair flight options available from London to O'Hare Intl. Find the lowest fares with prices last updated on 15 September 2025.

Mon 29/908:55LHR - ORD

1 stop16h 38mFinnair

Tue 7/1013:43ORD - LHR

1 stop10h 37mFinnair

Deal found 13/9£405

Thu 9/1009:15LHR - ORD

1 stop12h 50mFinnair

Mon 13/1018:36ORD - LHR

1 stop11h 54mFinnair

Deal found 14/9£406

Fri 31/1014:10LHR - ORD

Nonstop8h 35mFinnair

Mon 3/1105:00ORD - LHR

1 stop20h 20mFinnair

Deal found 15/9£410

Best Finnair flights from London to O'Hare Intl
Discover carefully curated Finnair flight deals from London to O'Hare Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 15 September 2025.

Sun 9/1106:15LHR - ORD

1 stop14h 15mFinnair

Thu 13/1120:40ORD - LHR

Nonstop7h 45mFinnair

Deal found 13/9£403

Mon 6/1011:00LHR - ORD

1 stop12h 36mFinnair

Mon 13/1018:36ORD - LHR

1 stop11h 54mFinnair

Deal found 13/9£405

Mon 29/908:55LHR - ORD

1 stop16h 38mFinnair

Tue 7/1013:43ORD - LHR

1 stop10h 37mFinnair

Deal found 13/9£405

Direct Finnair flights from London to O'Hare Intl
Explore direct Finnair flight options from London to O'Hare Intl based on user searches, and compare prices and availability for your desired travel dates. Data last updated 15 September 2025.

Sun 19/1014:25LHR - ORD

Nonstop8h 35mFinnair

Sun 26/1019:25ORD - LHR

Nonstop7h 50mFinnair

Deal found 14/9£582

Thu 25/1214:10LHR - ORD

Nonstop8h 50mFinnair

Sat 3/118:45ORD - LHR

Nonstop7h 50mFinnair

Deal found 13/9£697

Fri 12/1212:35LHR - ORD

Nonstop8h 50mFinnair

Mon 5/120:45ORD - LHR

Nonstop7h 40mFinnair

Deal found 14/9£784

Last-minute Finnair flights from London to O'Hare Intl
Discover last-minute Finnair flight deals from London to O'Hare Intl. Data last updated 15 September 2025 and is based on user searches.

Mon 29/908:55LHR - ORD

1 stop16h 38mFinnair

Tue 7/1013:43ORD - LHR

1 stop10h 37mFinnair

Deal found 13/9£405

Thu 9/1009:15LHR - ORD

1 stop12h 50mFinnair

Mon 13/1018:36ORD - LHR

1 stop11h 54mFinnair

Deal found 14/9£406

Fri 31/1014:10LHR - ORD

Nonstop8h 35mFinnair

Mon 3/1105:00ORD - LHR

1 stop20h 20mFinnair

Deal found 15/9£410

One-way Finnair flights to O'Hare Intl
Search for one-way Finnair flight options to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated 15 September 2025.

Tue 16/1214:10LHR - ORD

Nonstop8h 50mFinnair

Deal found 13/9£405

Mon 15/1214:10LHR - ORD

Nonstop8h 50mFinnair

Deal found 15/9£406

Wed 29/1014:10LHR - ORD

Nonstop8h 35mFinnair

Deal found 14/9£418

Travel insights for Finnair flights from London to O'Hare Intl

Get recent, data-driven insights about Finnair flights from London to O'Hare Intl including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from London to Chicago O'Hare Intl Airport with Finnair?

Currently, the most affordable month to book a Finnair flight from London to Chicago O'Hare Intl Airport in April, with an average price of £370. Conversely, traveling with Finnair from London to Chicago O'Hare Intl Airport in July will be the most expensive, with an average cost of £476. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.

Weekly Finnair flight availability from London to Chicago O'Hare Intl Airport

The most Finnair flights from LON to ORD are scheduled on a Monday (5 on average). You will have fewer Finnair flight options on Thursday, which is when the least amount of flights are scheduled (3 on average).

Rainfall in O'Hare Intl by month

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.

Temperature in O'Hare Intl by month

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).

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

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from London 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.

Browse thousands of different options on Cheapflights for your next trip

See what others are saying about Finnair

Finnair

7.6

Good

1,323 reviews

Check prices

Overview

Recent reviews

8.0

Very Good|Jul 2025

It was okay

2.0

Poor|Jun 2025

They stranded us in the airport

10.0

Wonderful|May 2025

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.

10.0

Wonderful|May 2025

This is a very short flight. The crew was all very friendly and helpful. The plane was clean and nice. By the time you're in the air, you're starting to descend. It's painless.

6.0

Okay|May 2025

Difficult to say what I liked, cabin crew very miserable, looked like they were sick of the job and it was their 50th flight if the day, long wait between drinks and food was somewhat very budget. We did travel in economy but with such a long flight you'd expect this type of service with Ryanair for a two/three hour flight to benidorm, not 8 hours over the Altantic.. entertainment was limited with films and difficult to hear even with headphones on. I think the pilot spoke once and I couldn't hear him over the noise in the cabin. I'd say to say you get what you pay for but my opinion I've flown with a much better airlines. Sorry...you dud ask :(

1 out of 441

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Finnair flights from London to Chicago O'Hare Intl Airport (LON - ORD)

Cheapflights users flying from London to Chicago on Finnair typically fly into Chicago O'Hare Intl and depart from London Heathrow. Select your dates above for pricing.

Finnair flights from London to O'Hare Intl in 2025

Find detailed information about Finnair flights from London to O'Hare Intl. Explore the options provided by Finnair to plan your journey from London to O'Hare Intl. Data last updated 15 September 2025.

One-way from

Return from

Popular in

Cheapest in

Average price (all airlines)

Can I get a flight from London to Chicago O'Hare Intl Airport on Finnair for under £700?

How do most travelers feel about Finnair?

Find Finnair flight deals from London to O'Hare Intl

Cheapest Finnair flights from London to O'Hare IntlExplore the most affordable Finnair flight options available from London to O'Hare Intl. Find the lowest fares with prices last updated on 15 September 2025.

Explore the most affordable Finnair flight options available from London to O'Hare Intl. Find the lowest fares with prices last updated on 15 September 2025.

Travel insights for Finnair flights from London to O'Hare Intl

Get recent, data-driven insights about Finnair flights from London to O'Hare Intl including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from London to Chicago O'Hare Intl Airport with Finnair?

Weekly Finnair flight availability from London to Chicago O'Hare Intl Airport

Rainfall in O'Hare Intl by month

Plan your trip to O'Hare Intl by taking into account the average rainfall totals by month.

Temperature in O'Hare Intl by month

Plan your trip to O'Hare Intl by taking into account the average temperature totals by month.

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

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

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.

Fly from London to O'Hare Intl on another airline

Consider alternative airlines that service the O'Hare Intl area. Flight routes are based on user searches made on Cheapflights and were last updated on 15 September 2025.

See what others are saying about Finnair

Overview

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Travel Smart

Cheapest Finnair flights from London to O'Hare Intl
Explore the most affordable Finnair flight options available from London to O'Hare Intl. Find the lowest fares with prices last updated on 15 September 2025.