Finnair flights from London to Philadelphia (LON - PHL)
LON — PHL
10 Oct — 17 Oct1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Find Finnair flight deals from London to Philadelphia
Enter your travel dates to find the best prices.
Cheapest
Best
Direct
Last-minute
One-way
Cheapest Finnair flights from London to Philadelphia
Explore the most affordable Finnair flight options available from London to Philadelphia. Find the lowest fares with prices last updated on 10 September 2026.
Tue 22/909:15 -
Nonstop7h 55m
Tue 29/919:35 -
Nonstop7h 15m
Deal found 9/9£601
Mon 26/1013:10 -
Nonstop8h 05m
Mon 30/1119:40 -
Nonstop7h 10m
Deal found 6/9£602
Thu 24/913:45 -
Nonstop7h 55m
Sun 4/1018:45 -
Nonstop7h 05m
Deal found 6/9£603
Best Finnair flights from London to Philadelphia
Discover carefully curated Finnair flight deals from London to Philadelphia that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 10 September 2026.
Mon 21/909:15 -
Nonstop7h 55m
Mon 28/919:35 -
Nonstop7h 15m
Deal found 10/9£634
Fri 23/1013:45 -
Nonstop7h 55m
Sun 25/1019:35 -
Nonstop7h 00m
Deal found 5/9£644
Sun 15/1121:20 -
1 stop22h 35m
Mon 30/1118:35 -
Nonstop7h 00m
Deal found 10/9£650
Direct Finnair flights from London to Philadelphia
Explore direct Finnair flight options from London to Philadelphia based on user searches, and compare prices and availability for your desired travel dates. Data last updated 10 September 2026.
Tue 22/909:15 -
Nonstop7h 55m
Tue 29/919:35 -
Nonstop7h 15m
Deal found 9/9£601
Mon 26/1013:10 -
Nonstop8h 05m
Mon 30/1119:40 -
Nonstop7h 10m
Deal found 6/9£602
Thu 24/913:45 -
Nonstop7h 55m
Sun 4/1018:45 -
Nonstop7h 05m
Deal found 6/9£603
Last-minute Finnair flights from London to Philadelphia
Discover last-minute Finnair flight deals from London to Philadelphia. Data last updated 10 September 2026 and is based on user searches.
Tue 22/909:15 -
Nonstop7h 55m
Tue 29/919:35 -
Nonstop7h 15m
Deal found 9/9£601
Mon 26/1013:10 -
Nonstop8h 05m
Mon 30/1119:40 -
Nonstop7h 10m
Deal found 6/9£602
Thu 24/913:45 -
Nonstop7h 55m
Sun 4/1018:45 -
Nonstop7h 05m
Deal found 6/9£603
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 10 September 2026.
Mon 30/1113:10 -
Nonstop8h 05m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 8/9£432
Thu 5/1110:35 -
Nonstop8h 05m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 7/9£459
Thu 26/1110:35 -
Nonstop8h 10m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 10/9£475
How do most travelers feel about Finnair?
Finnair has received a 7.6/10 rating from 1,430 Cheapflights user reviews. If you wish to plan your next trip from London to Philadelphia with Finnair, enter your preferred travel dates above!
Can I get a flight from London to Philadelphia on Finnair for under £664?
There are 10 flights available on Finnair from London to Philadelphia for under £664. These prices can change based on many factors including date and time. To find LON-PHL flight prices for your dates, click here.
Finnair flights from London to Philadelphia in 2026
Find detailed information about Finnair flights from London to Philadelphia. Explore the options provided by Finnair to plan your journey from London to Philadelphia. Data last updated 10 September 2026.
Which month is the cheapest to fly Economy class from London 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 to Philadelphia
The most Finnair flights from LON to PHL are scheduled on a Wednesday (3 on average). You will have fewer Finnair flight options on Monday, which is when the least amount of flights are scheduled (1 on average).
Rainfall in Philadelphia by month
Plan your trip to Philadelphia by taking into account the average rainfall totals 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
Plan your trip to Philadelphia by taking into account the average temperature totals by month.
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).
Best time to book a flight from London to Philadelphia
Have a flexible travel schedule? Discover the best time to fly to Philadelphia from London with our price prediction graph.
LON-PHL
LHR-PHL
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
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Airlines serving Philadelphia
Alternative routes
Complete your trip
Other carriers
Other destinations
Popular flights
Fly from London 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 10 September 2026.
Browse through other Finnair flights departing from London. Flight routes are based on user searches made on Cheapflights and were last updated on 10 September 2026.
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 10 September 2026.
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 10 September 2026.
Read reviews and see what other travellers are saying about their experiences with Finnair. Get insights from real passengers regarding the airline's services, customer satisfaction, and overall travel experience. Use these reviews to inform your decision when choosing Finnair for your next flight. Reviews last updated 10 September 2026.
The flight from Helsinki to Toronto was very cramped. No leg space and no room to even walk. Very bad experience
8.0
Very Good|Jul 2026
Very limited food provided. Limited drinks, lights out for 10 of 12.30 flights. Very few staff.
2.0
Poor|Jun 2026
Lost our luggage and took two days to get it back. Ruined the trip.
10.0
Wonderful|Jun 2026
Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.
10.0
Wonderful|May 2026
Positive
1 out of 477
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.
We value your privacy
Cheapflights and its partners wish to use cookies or similar technologies to store and/or access information on and about your device and process personal data such as your IP address, device identifiers etc., in order to improve your experience on the site, to analyse navigation, to offer and measure personalised advertising, and to facilitate sharing on social networks. We also allow the use of third-party cookies (including those from our advertising partners) on our sites.
By clicking 'Accept', you consent to your data being processed by 0 vendors on this web site for the purposes described in this notice. You can review the vendors and their individual processing purposes on the .
To review individual processing purposes and cookie categories, please click ’Select individual purposes’. You can review your choices and withdraw your consent at any time by clicking the ’Privacy Preferences’ link in the page side navigation.