How do most travelers feel about Finnair?

The average rating from 8,924 Finnair reviews by Cheapflights users is 7.4 (out of a maximum rating of 10). If you are considering flying LHR-PHL with Cheapflights, apply your desired dates to the form above to see our best pricing for your trip to Philadelphia with Finnair.

Can I get a flight from London Heathrow Airport to Philadelphia on Finnair for under £700?

Cheapflights users have found 10 Finnair flights for under £700 on the LHR-PHL route. Prices on flights to Philadelphia from London Heathrow Airport can vary based on many factors including dates. To look at price based on your preferred dates, click here.

Weekly Finnair flight availability from London Heathrow Airport to Philadelphia

The most Finnair flights from LHR to PHL are scheduled on a Monday (3 on average). You will have fewer Finnair flight options on Friday, which is when the least amount of flights are scheduled (2 on average).

In terms of precipitation, rainfall in Philadelphia ranges from 69.0 - 112.0 inches per month. July is typically the wettest month, when rainfall can reach 112.0 mm. February is typically the driest time to visit Philadelphia when rainfall is around 69.0 mm.

If weather is an important factor for your trip to Philadelphia, 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 26.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 1.0 C).

£358+ Finnair Flights from Heathrow to Philadelphia

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

Finnair flights from Heathrow to Philadelphia in 2025

One-way from	£358
Return from	£445
Popular in	December
Cheapest in	March
Average price (all airlines)	£491

Finnair
19/11
Nonstop
8h 10m total
London to Philadelphia

Search Deals

Finnair
11/3-23/3
3 total stops
34h 40m total
London to Philadelphia

Search Deals

Highest demand for flights from London Heathrow to Philadelphia; 3% potential price increase.

Search Deals

Best time to find cheap flights from London Heathrow to Philadelphia; 2% potential price drop.

Search Deals

Average price for all London Heathrow to Philadelphia flights (one-way and round-trip).

Search Deals

Can I get a flight from London Heathrow Airport to Philadelphia on Finnair for under £700?
Cheapflights users have found 10 Finnair flights for under £700 on the LHR-PHL route. Prices on flights to Philadelphia from London Heathrow Airport can vary based on many factors including dates. To look at price based on your preferred dates, click here.
How do most travelers feel about Finnair?
The average rating from 8,924 Finnair reviews by Cheapflights users is 7.4 (out of a maximum rating of 10). If you are considering flying LHR-PHL with Cheapflights, apply your desired dates to the form above to see our best pricing for your trip to Philadelphia with Finnair.

Find Finnair flight deals from Heathrow to Philadelphia

Cheapest Finnair flights from Heathrow to Philadelphia
Explore the most affordable Finnair flight options available from Heathrow to Philadelphia. Find the lowest fares with prices last updated on 17 September 2025.

Wed 24/907:50LHR - PHL

1 stop13h 05mFinnair

Wed 1/1022:15PHL - LHR

Nonstop7h 05mFinnair

Deal found 16/9£444

Sun 12/1010:30LHR - PHL

1 stop30h 15mFinnair

Wed 22/1018:00PHL - LHR

1 stop13h 30mFinnair

Deal found 15/9£447

Mon 20/1012:45LHR - PHL

1 stop28h 00mFinnair

Mon 27/1017:55PHL - LHR

1 stop14h 05mFinnair

Deal found 16/9£460

Best Finnair flights from Heathrow to Philadelphia
Discover carefully curated Finnair flight deals from Heathrow to Philadelphia that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 September 2025.

Wed 11/317:00LHR - PHL

2 stops23h 55mFinnair

Mon 23/318:35PHL - LHR

1 stop10h 45mFinnair

Deal found 14/9£445

Mon 5/113:10LHR - PHL

Nonstop8h 05mFinnair

Tue 27/119:45PHL - LHR

Nonstop7h 05mFinnair

Deal found 16/9£447

Sun 12/1010:30LHR - PHL

1 stop30h 15mFinnair

Wed 22/1018:00PHL - LHR

1 stop13h 30mFinnair

Deal found 15/9£447

Direct Finnair flights from Heathrow to Philadelphia
Explore direct Finnair flight options from Heathrow to Philadelphia based on user searches, and compare prices and availability for your desired travel dates. Data last updated 17 September 2025.

Mon 2/310:05LHR - PHL

Nonstop8h 05mFinnair

Mon 9/319:35PHL - LHR

Nonstop7h 00mFinnair

Deal found 15/9£446

Mon 5/113:10LHR - PHL

Nonstop8h 05mFinnair

Tue 27/119:45PHL - LHR

Nonstop7h 05mFinnair

Deal found 16/9£447

Tue 4/1110:15LHR - PHL

Nonstop8h 10mFinnair

Thu 4/1218:35PHL - LHR

Nonstop7h 00mFinnair

Deal found 15/9£458

Last-minute Finnair flights from Heathrow to Philadelphia
Discover last-minute Finnair flight deals from Heathrow to Philadelphia. Data last updated 17 September 2025 and is based on user searches.

Wed 24/907:50LHR - PHL

1 stop13h 05mFinnair

Wed 1/1022:15PHL - LHR

Nonstop7h 05mFinnair

Deal found 16/9£444

Sun 12/1010:30LHR - PHL

1 stop30h 15mFinnair

Wed 22/1018:00PHL - LHR

1 stop13h 30mFinnair

Deal found 15/9£447

Mon 20/1012:45LHR - PHL

1 stop28h 00mFinnair

Mon 27/1017:55PHL - LHR

1 stop14h 05mFinnair

Deal found 16/9£460

One-way Finnair flights to Philadelphia
Search for one-way Finnair flight options to Philadelphia. Find affordable one-way fares based on user searches. Data last updated 17 September 2025.

Wed 19/1110:15LHR - PHL

Nonstop8h 10mFinnair

Deal found 16/9£358

Tue 18/1113:10LHR - PHL

Nonstop8h 05mFinnair

Deal found 17/9£359

Mon 15/1213:10LHR - PHL

Nonstop8h 05mFinnair

Deal found 16/9£378

Travel insights for Finnair flights from Heathrow to Philadelphia

Get recent, data-driven insights about Finnair flights from Heathrow to Philadelphia including ideal travel times, pricing trends, and more.

Prices

Airlines

How far ahead should I book a flight from London Heathrow Airport to Philadelphia with Finnair?

Booking with Finnair 67 days in advance of your planned departure date is, on average, the best time to get cheap flights from London Heathrow Airport to Philadelphia. 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 Heathrow Airport to Philadelphia with Finnair?

Currently, the most affordable month to book a Finnair flight from London Heathrow Airport to Philadelphia in March, with an average price of £309. Conversely, traveling with Finnair from London Heathrow Airport to Philadelphia in June will be the most expensive, with an average cost of £378. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.

Best time to book a flight from Heathrow to Philadelphia

Have a flexible travel schedule? Discover the best time to fly to Philadelphia from Heathrow 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

1,324 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 442

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Finnair flights from London Heathrow Airport to Philadelphia (LHR - PHL)

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

Finnair flights from Heathrow to Philadelphia in 2025

Find detailed information about Finnair flights from Heathrow to Philadelphia. Explore the options provided by Finnair to plan your journey from Heathrow to Philadelphia. Data last updated 17 September 2025.

One-way from

Return from

Popular in

Cheapest in

Average price (all airlines)

Can I get a flight from London Heathrow Airport to Philadelphia on Finnair for under £700?

How do most travelers feel about Finnair?

Find Finnair flight deals from Heathrow to Philadelphia

Cheapest Finnair flights from Heathrow to PhiladelphiaExplore the most affordable Finnair flight options available from Heathrow to Philadelphia. Find the lowest fares with prices last updated on 17 September 2025.

Explore the most affordable Finnair flight options available from Heathrow to Philadelphia. Find the lowest fares with prices last updated on 17 September 2025.

Travel insights for Finnair flights from Heathrow to Philadelphia

Get recent, data-driven insights about Finnair flights from Heathrow to Philadelphia including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from London Heathrow Airport to Philadelphia with Finnair?

What is the cheapest month to book a flight from London Heathrow Airport to Philadelphia with Finnair?

Weekly Finnair flight availability from London Heathrow Airport to Philadelphia

Rainfall in Philadelphia by month

Temperature in Philadelphia by month

Best time to book a flight from Heathrow to Philadelphia

Have a flexible travel schedule? Discover the best time to fly to Philadelphia from Heathrow 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 Heathrow to Philadelphia on another airline

Consider alternative airlines that service the Philadelphia area. Flight routes are based on user searches made on Cheapflights and were last updated on 17 September 2025.

See what others are saying about Finnair

Overview

100% Free

Book with Flexibility

Travel Smart

Cheapest Finnair flights from Heathrow to Philadelphia
Explore the most affordable Finnair flight options available from Heathrow to Philadelphia. Find the lowest fares with prices last updated on 17 September 2025.