How do most travelers feel about Finnair?

When planning your ORD-LON trip, keep in mind that Finnair is typically rated 6.9/10. This rating comes from 7,582 reviews by Cheapflights users who have traveled with Finnair.

Can I get a flight from Chicago O'Hare Intl Airport to London on Finnair for under $800?

There are 22 flights available on Finnair from Chicago O'Hare Intl Airport to London for under $800. These prices can change based on many factors including date and time. To find ORD-LON flight prices for your dates, click here.

How far ahead should I book a flight from Chicago O'Hare Intl Airport to London with Finnair?

Booking with Finnair 4 days in advance of your planned departure date is, on average, the best time to get cheap flights from Chicago O'Hare Intl Airport to London. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, the most affordable month to book a Finnair flight from Chicago O'Hare Intl Airport to London in November, with an average price of $652. Conversely, traveling with Finnair from Chicago O'Hare Intl Airport to London in June will be the most expensive, with an average cost of $1,114. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.

In terms of precipitation, rainfall in London ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London when rainfall is around 1.6 in.

Fly Finnair from ORD to London as low as $399

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

Finnair flights from O'Hare Intl to London in 2024

Popular in	June
Cheapest in	February
Average price (all airlines)	$765
One-way from	$399
Round-trip from	$548

Highest demand for flights from Chicago O'Hare Intl to London; 21% potential price increase.

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Best time to find cheap flights from Chicago O'Hare Intl to London; 4% potential price drop.

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

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Cheapest one-way Finnair flight from Chicago O'Hare Intl to London

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Cheapest round-trip Finnair flight from Chicago O'Hare Intl to London

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Can I get a flight from Chicago O'Hare Intl Airport to London on Finnair for under $800?
There are 22 flights available on Finnair from Chicago O'Hare Intl Airport to London for under $800. These prices can change based on many factors including date and time. To find ORD-LON flight prices for your dates, click here.
How do most travelers feel about Finnair?
When planning your ORD-LON trip, keep in mind that Finnair is typically rated 6.9/10. This rating comes from 7,582 reviews by Cheapflights users who have traveled with Finnair.

Cheapest Finnair flights from O'Hare Intl to London

Sun 6/98:10 amORD - LHR

Nonstop8h 00mFinnair

Thu 6/208:10 amLHR - ORD

Nonstop8h 35mFinnair

Deal found 5/29$699

Pick Dates

Thu 6/138:10 amORD - LHR

Nonstop8h 00mFinnair

Wed 6/1910:05 amLHR - ORD

Nonstop8h 40mFinnair

Deal found 5/30$700

Pick Dates

Sun 6/98:10 amORD - LHR

Nonstop8h 00mFinnair

Thu 6/2010:30 amLHR - ORD

1 stop14h 49mFinnair

Deal found 5/30$713

Pick Dates

Direct flights from O'Hare Intl to London on Finnair

Sun 10/68:25 pmORD - LHR

Nonstop7h 55mFinnair

Thu 10/1711:05 amLHR - ORD

Nonstop8h 40mFinnair

Deal found 5/29$548

Pick Dates

Wed 11/66:35 pmORD - LHR

Nonstop7h 40mFinnair

Wed 11/1311:00 amLHR - ORD

Nonstop8h 55mFinnair

Deal found 5/30$549

Pick Dates

Mon 10/2110:25 pmORD - LHR

Nonstop7h 50mFinnair

Fri 11/81:10 pmLHR - ORD

Nonstop8h 55mFinnair

Deal found 5/29$550

Pick Dates

Last minute deals on Cheapflights

Sun 6/98:10 amORD - LHR

Nonstop8h 00mFinnair

Thu 6/202:25 pmLHR - ORD

Nonstop8h 42mFinnair

Deal found 5/29$699

Pick Dates

Sun 6/98:10 amORD - LHR

Nonstop8h 00mFinnair

Thu 6/2010:30 amLHR - ORD

1 stop14h 49mFinnair

Deal found 5/30$713

Pick Dates

Sun 6/98:10 amORD - LHR

Nonstop8h 00mFinnair

Thu 6/2010:30 amLHR - ORD

1 stop14h 49mFinnair

Deal found 5/29$714

Pick Dates

One-way Finnair flights to London from O'Hare Intl

Tue 9/2410:25 pmORD - LHR

Nonstop7h 50mFinnair

Deal found 5/30$399

Pick Dates

Sun 10/66:00 pmORD - LHR

Nonstop7h 50mFinnair

Deal found 5/30$404

Pick Dates

Wed 7/1710:45 pmORD - LHR

Nonstop7h 30mFinnair

Deal found 5/29$434

Pick Dates

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

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

Estimated round-trip price

Temperature and rainfall in London by month

LON Temperature	39.2 - 62.6 °F

LON

Temperature

39.2 - 62.6 °F

If weather is an important factor for your trip to London, 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 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

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Fly from O'Hare Intl to London on another airline
Consider alternative airlines that service the London area. Flight routes are based on user searches made on Cheapflights and were last updated on May 30, 2024.

British Airways flights from Chicago O'Hare Intl to London

American Airlines flights from Chicago O'Hare Intl to London

Complete your trip
Complete your trip to London by adding a car rental and/or hotel reservation to your travel itinerary.

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Other popular destinations in Europe
If London is not for you, choose from these other destinations located in Europe. Flight routes are based on user searches made on Cheapflights and were last updated on May 30, 2024.

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Popular flights with Finnair
Browse through some of the most popular routes that Finnair offers at this time. Flights are based on user searches made on Cheapflights and were last updated on May 30, 2024.

Finnair flights from O'Hare Intl to London

See what others are saying about Finnair

Finnair

7.7

Good

1,372 reviews

Check prices

Overview

Recent reviews

5.6

Fair|Mar 2020

Nothing

Snack and some complimentary wifi or entertainment

4.0

Mediocre|Nov 2021

Had to pay £65 (~$90)to check my bag even though it was free on the outgoing flight. Had to pay surcharge for paying at check in even though I tried to correct in advance over phone and online. Kayak was no help.

10.0

Wonderful|Oct 2021

Kayak was terrible, I was told that I got 1 free checked bag, but when I got to the check-in counter I was told otherwise and had to pay for my checked bag!!!!

10.0

Wonderful|Aug 2022

Asked to put hand luggage in hold as flight full. Been waiting over an hour at Manchester airport to retrieve it

6.0

Okay|Jul 2023

One of the Flightattendant was so rude and bad. She should not work with people.

1 out of 458

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

Finnair flights from O'Hare Intl to London in 2024

Find detailed information about Finnair flights from O'Hare Intl to London. Explore the options provided by Finnair to plan your journey from O'Hare Intl to London. Data last updated May 30, 2024.

Popular in

Cheapest in

Average price (all airlines)

One-way from

Round-trip from

Can I get a flight from Chicago O'Hare Intl Airport to London on Finnair for under $800?

How do most travelers feel about Finnair?

Cheapest Finnair flights from O'Hare Intl to London

Direct flights from O'Hare Intl to London on Finnair

Last minute deals on Cheapflights

One-way Finnair flights to London from O'Hare Intl

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

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

Temperature and rainfall in London by month

Plan your trip to London by taking into account the average temperature and rainfall totals by month.

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 O'Hare Intl to London on another airline
Consider alternative airlines that service the London area. Flight routes are based on user searches made on Cheapflights and were last updated on May 30, 2024.

Consider alternative airlines that service the London area. Flight routes are based on user searches made on Cheapflights and were last updated on May 30, 2024.

Other Finnair flights from O'Hare Intl
Browse through other Finnair flights departing from O'Hare Intl. Flight routes are based on user searches made on Cheapflights and were last updated on May 30, 2024.

Browse through other Finnair flights departing from O'Hare Intl. Flight routes are based on user searches made on Cheapflights and were last updated on May 30, 2024.

Complete your trip
Complete your trip to London by adding a car rental and/or hotel reservation to your travel itinerary.

Complete your trip to London by adding a car rental and/or hotel reservation to your travel itinerary.

Other airlines servicing O'Hare Intl and London
Choose from other airlines serving O'Hare Intl and London.

Choose from other airlines serving O'Hare Intl and London.

Other popular destinations in Europe
If London is not for you, choose from these other destinations located in Europe. Flight routes are based on user searches made on Cheapflights and were last updated on May 30, 2024.

If London is not for you, choose from these other destinations located in Europe. Flight routes are based on user searches made on Cheapflights and were last updated on May 30, 2024.

Popular flights with Finnair
Browse through some of the most popular routes that Finnair offers at this time. Flights are based on user searches made on Cheapflights and were last updated on May 30, 2024.

Browse through some of the most popular routes that Finnair offers at this time. Flights are based on user searches made on Cheapflights and were last updated on May 30, 2024.

See what others are saying about Finnair

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Flights

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

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

Finnair flights from O'Hare Intl to London in 2024

Find detailed information about Finnair flights from O'Hare Intl to London. Explore the options provided by Finnair to plan your journey from O'Hare Intl to London. Data last updated May 30, 2024.

Popular in

Cheapest in

Average price (all airlines)

One-way from

Round-trip from

Can I get a flight from Chicago O'Hare Intl Airport to London on Finnair for under $800?

How do most travelers feel about Finnair?

Cheapest Finnair flights from O'Hare Intl to London

Direct flights from O'Hare Intl to London on Finnair

Last minute deals on Cheapflights

One-way Finnair flights to London from O'Hare Intl

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

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

Temperature and rainfall in London by month

Plan your trip to London by taking into account the average temperature and rainfall totals by month.

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 O'Hare Intl to London on another airlineConsider alternative airlines that service the London area. Flight routes are based on user searches made on Cheapflights and were last updated on May 30, 2024.

Consider alternative airlines that service the London area. Flight routes are based on user searches made on Cheapflights and were last updated on May 30, 2024.

See what others are saying about Finnair

Overview

100% Free

Book with Flexibility

Travel Smart

Fly from O'Hare Intl to London on another airline
Consider alternative airlines that service the London area. Flight routes are based on user searches made on Cheapflights and were last updated on May 30, 2024.