How do most travelers feel about Finnair?

The general consensus from 7,004 Cheapflights users is that Finnair is a 7.0/10. Select your travel dates above for updated prices on flights from London to St. Louis (LON-STL).

How far ahead should I book a flight from London to St. Louis with Finnair?

Booking with Finnair 27 days in advance of your planned departure date is, on average, the best time to get cheap flights from London to St. Louis. 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 London to St. Louis with Finnair?

Currently, the most affordable month to book a Finnair flight from London to St. Louis in November, with an average price of £666. Conversely, traveling with Finnair from London to St. Louis in August will be the most expensive, with an average cost of £852. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.

In terms of precipitation, rainfall in St. Louis ranges from 56.0 - 119.0 inches per month. May is typically the wettest month, when rainfall can reach 119.0 mm. February is typically the driest time to visit St. Louis when rainfall is around 56.0 mm.

Fly Finnair from London to STL as low as £594

Cheapflights users flying from London to St. Louis on Finnair typically fly into Lambert-St Louis and depart from London Heathrow. Select your dates above for pricing.

Finnair flights from London to St. Louis in 2024

Popular in	August
Cheapest in	November
Average price (all airlines)	£594
One-way from	£659
Return from	£541

Highest demand for flights from London to Lambert-St Louis; 14% potential price increase.

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Best time to find cheap flights from London to Lambert-St Louis; 3% potential price drop.

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Average price for all London to Lambert-St Louis flights (one-way and round-trip).

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Cheapest one-way Finnair flight from London to Lambert-St Louis

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Cheapest return Finnair flight from London to Lambert-St Louis

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How do most travelers feel about Finnair?
The general consensus from 7,004 Cheapflights users is that Finnair is a 7.0/10. Select your travel dates above for updated prices on flights from London to St. Louis (LON-STL).

Cheapest Finnair flights from London to St. Louis

Thu 27/611:15LHR - STL

1 stop17h 43mFinnair

Thu 4/705:15STL - LHR

1 stop20h 25mFinnair

Deal found 30/5£594

Pick Dates

Sat 15/611:15LHR - STL

1 stop17h 43mFinnair

Sat 22/617:38STL - LHR

1 stop12h 32mFinnair

Deal found 30/5£625

Pick Dates

Sat 29/612:15LHR - STL

1 stop11h 42mFinnair

Sat 6/706:29STL - LHR

1 stop21h 41mFinnair

Deal found 30/5£629

Pick Dates

Last minute deals on Cheapflights

Sat 8/608:10LHR - STL

1 stop12h 16mFinnair

Sat 8/617:38STL - LHR

1 stop12h 32mFinnair

Deal found 30/5£2,501

Pick Dates

Fri 7/607:30LHR - STL

2 stops20h 32mFinnair

Thu 13/612:44STL - LHR

1 stop19h 41mFinnair

Deal found 30/5£6,408

Pick Dates

One-way Finnair flights to St. Louis from London

Mon 9/912:30LHR - STL

1 stop16h 51mFinnair

Deal found 30/5£659

Pick Dates

Fri 9/812:15LHR - STL

1 stop16h 02mFinnair

Deal found 30/5£977

Pick Dates

Best time to book a flight from London to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from London with our price prediction graph.

Estimated return price

Temperature and rainfall in St. Louis by month

STL Temperature	0 - 27 °C

STL

Temperature

0 - 27 °C

If weather is an important factor for your trip to St. Louis, 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 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 0.0 C).

Browse thousands of different options on Cheapflights for your next trip

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

Virgin Atlantic flights from London to Lambert-St Louis

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

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Finnair flights from London to St. Louis

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

St. Louis car hire

Lambert-St Louis Airport car hire

Springfield Capital Airport car hire

Belleville Airport car hire

Marion Williamson County Airport car hire

Central West End car hire

Soulard car hire

Midtown car hire

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

Flights to New York

Flights to Toronto

Flights to Orlando

Flights to Los Angeles

Flights to Las Vegas

Flights to Miami

Flights to Vancouver

Flights to San Francisco

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 30 May 2024.

Finnair flights from London to Dallas/Fort Worth

Finnair flights from London to Atlanta

Finnair flights from London to New York

Finnair flights from London to O'Hare Intl

Finnair flights from London to Charlotte

Finnair flights from London to Las Vegas

Finnair flights from London to Los Angeles

Finnair flights from London to Raleigh

Finnair flights from London to Nashville

Finnair flights from London to George Bush Intcntl

Finnair flights from London to Indianapolis

Finnair flights from London to Las Vegas

Finnair flights from London to Minneapolis

Finnair flights from London to Dallas/Fort Worth

Finnair flights from London to St. Louis

Finnair flights from London to Miami

Finnair flights from London to Sky Harbor Intl

Finnair flights from London to Helsinki

Finnair flights from London to Charlotte

Finnair flights from London to Helsinki

Finnair flights from London to Kansas City

Finnair flights from London to Boston

Finnair flights from London to Memphis

Finnair flights from London to Philadelphia

Finnair flights from London to Detroit

Finnair flights from London to Hobby

Finnair flights from London to Rovaniemi

Finnair flights from London to Columbus

Finnair flights from London to Nashville

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 London to St. Louis on Finnair typically fly into Lambert-St Louis and depart from London Heathrow. Select your dates above for pricing.

Finnair flights from London to St. Louis in 2024

Find detailed information about Finnair flights from London to St. Louis. Explore the options provided by Finnair to plan your journey from London to St. Louis. Data last updated 30 May 2024.

Popular in

Cheapest in

Average price (all airlines)

One-way from

Return from

How do most travelers feel about Finnair?

Cheapest Finnair flights from London to St. Louis

Last minute deals on Cheapflights

One-way Finnair flights to St. Louis from London

Best time to book a flight from London to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from London with our price prediction graph.

Temperature and rainfall in St. Louis by month

Plan your trip to St. Louis 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 London to St. Louis on another airline
Consider alternative airlines that service the St. Louis area. Flight routes are based on user searches made on Cheapflights and were last updated on 30 May 2024.

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

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

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

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

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

Other airlines servicing London and St. Louis
Choose from other airlines serving London and St. Louis.

Choose from other airlines serving London and St. Louis.

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

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

See what others are saying about Finnair

Overview

Recent reviews

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Flights

Finnair flights from London to St. Louis (LON - STL)

Cheapflights users flying from London to St. Louis on Finnair typically fly into Lambert-St Louis and depart from London Heathrow. Select your dates above for pricing.

Finnair flights from London to St. Louis in 2024

Find detailed information about Finnair flights from London to St. Louis. Explore the options provided by Finnair to plan your journey from London to St. Louis. Data last updated 30 May 2024.

Popular in

Cheapest in

Average price (all airlines)

One-way from

Return from

How do most travelers feel about Finnair?

Cheapest Finnair flights from London to St. Louis

Last minute deals on Cheapflights

One-way Finnair flights to St. Louis from London

Best time to book a flight from London to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from London with our price prediction graph.

Temperature and rainfall in St. Louis by month

Plan your trip to St. Louis 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 London to St. Louis on another airlineConsider alternative airlines that service the St. Louis area. Flight routes are based on user searches made on Cheapflights and were last updated on 30 May 2024.

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

See what others are saying about Finnair

Overview

100% Free

Book with Flexibility

Travel Smart

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