How do most travelers feel about Finnair?

The average rating from 1,430 Finnair reviews by Cheapflights users is 7.6 (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 £884?

Cheapflights users have found 11 Finnair flights for under £884 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.

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 February, with an average price of £459. Conversely, traveling with Finnair from London Heathrow Airport to Philadelphia in July will be the most expensive, with an average cost of £931. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.

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 Monday, which is when the least amount of flights are scheduled (3 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).

£455+ Finnair Flights from Heathrow to Philadelphia

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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 29 August 2026.

Mon 14/909:15 -

Nonstop7h 55m

Mon 21/922:10 -

Nonstop7h 10m

Deal found 26/8£591

Wed 23/912:15 -

1 stop15h 34m

Wed 30/917:49 -

1 stop12h 01m

Deal found 26/8£592

Tue 15/913:45 -

Nonstop7h 55m

Wed 30/922:10 -

Nonstop7h 10m

Deal found 26/8£596

How do most travelers feel about Finnair?
The average rating from 1,430 Finnair reviews by Cheapflights users is 7.6 (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 £884?
Cheapflights users have found 11 Finnair flights for under £884 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.

Finnair flights from Heathrow to Philadelphia in 2026

One-way from	£455
Return from	£591
Popular in	August
Cheapest in	March
Average price (all airlines)	£852

Finnair
16/11
Nonstop
8h 05m total
London to Philadelphia

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Finnair
14/9-21/9
Nonstop
15h 05m total
London to Philadelphia

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Highest demand for flights from London Heathrow to Philadelphia; 12% potential price increase.

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

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

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Prices

Airlines

For Economy class flights, the cheapest month to fly this route is February. The most expensive months are July and August.

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.

LHR-PHL

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Good

1,430 reviews

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

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 29 August 2026.

Explore the most affordable Finnair flight options available from Heathrow to Philadelphia. Find the lowest fares with prices last updated on 29 August 2026.

Best Finnair flights from Heathrow to PhiladelphiaDiscover 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 29 August 2026.

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 29 August 2026.

Direct Finnair flights from Heathrow to PhiladelphiaExplore 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 29 August 2026.

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 29 August 2026.

Last-minute Finnair flights from Heathrow to PhiladelphiaDiscover last-minute Finnair flight deals from Heathrow to Philadelphia. Data last updated 29 August 2026 and is based on user searches.

Discover last-minute Finnair flight deals from Heathrow to Philadelphia. Data last updated 29 August 2026 and is based on user searches.

One-way Finnair flights to PhiladelphiaSearch for one-way Finnair flight options to Philadelphia. Find affordable one-way fares based on user searches. Data last updated 29 August 2026.

Search for one-way Finnair flight options to Philadelphia. Find affordable one-way fares based on user searches. Data last updated 29 August 2026.

How do most travelers feel about Finnair?

Can I get a flight from London Heathrow Airport to Philadelphia on Finnair for under £884?

Finnair flights from Heathrow to Philadelphia in 2026

One-way from

Return from

Popular in

Cheapest in

Average price (all airlines)

Which month is the cheapest to fly Economy class from London Heathrow Airport to Philadelphia?

For Economy class flights, the cheapest month to fly this route is February. The most expensive months are July and August.

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 Monday, which is when the least amount of flights are scheduled (3 on average).

Rainfall in Philadelphia by month

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.

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 29 August 2026.

Other Finnair flights from Heathrow

Browse through other Finnair flights departing from Heathrow. Flight routes are based on user searches made on Cheapflights and were last updated on 29 August 2026.

Complete your trip

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

Other airlines servicing Heathrow and Philadelphia

Choose from other airlines serving Heathrow and Philadelphia.

Other popular destinations in North America

If Philadelphia 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 29 August 2026.

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 29 August 2026.

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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 29 August 2026.

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 29 August 2026.

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 29 August 2026.

Last-minute Finnair flights from Heathrow to Philadelphia
Discover last-minute Finnair flight deals from Heathrow to Philadelphia. Data last updated 29 August 2026 and is based on user searches.

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 29 August 2026.