Cheap flights from London Heathrow Airport to Philadelphia from £296
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to Philadelphia departing on 1/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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JetBlue flights from London Heathrow Airport to Philadelphia
Our best JetBlue deals on London Heathrow Airport to Philadelphia flight tickets
British Airways flights from London Heathrow Airport to Philadelphia
Our best British Airways deals on London Heathrow Airport to Philadelphia flight tickets
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How to get the cheapest flight ticket from London Heathrow Airport to Philadelphia
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the typical price of a round-trip flight between London Heathrow Airport and Philadelphia?
What is the cheapest month to fly to Philadelphia?
If you aren’t able to travel during the month of March, then book flights to Philadelphia from London Heathrow Airport during February instead. Flights to Philadelphia in February, while not as cheap as those in March, still average around £492.
What is the cheapest day to depart on your flight to Philadelphia?
Our data shows that Tuesday is the least expensive day to fly to Philadelphia. Tickets to fly out on this day can be as low as £607. On the other hand, Sunday is the most expensive day to depart from London Heathrow Airport because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £660.
What is the cheapest time of day to depart on your flight to Philadelphia?
The cheapest time of day to fly to Philadelphia is in the afternoon when flights can be purchased for as low as £495. In the morning is when there is more demand to fly to Philadelphia, so prices are often more expensive at around £636 per ticket.
What is the cheapest London Heathrow to Philadelphia flight route?
Fly from London Heathrow to Philadelphia for the best London Heathrow - Philadelphia flight prices
How far in advance should I book a flight to Philadelphia?
You are more likely to see cheaper flights to Philadelphia from London Heathrow Airport when booking 16 weeks ahead of your departure date. In general, you can expect to find flights to Philadelphia for around £559 when searching 16 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Philadelphia from London Heathrow Airport for as low as £508 on momondo.
What cabin class options are available on London Heathrow to Philadelphia flights?
There are 3 cabin classes available to choose from on London Heathrow to Philadelphia flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
Can stopping save me money on London Heathrow Airport to Philadelphia flights?
No. A direct flight is the cheapest option for a flight between London Heathrow Airport to Philadelphia.
How have London Heathrow Airport to Philadelphia flight prices changed over time?
As of June 2025, prices for London Heathrow Airport to Philadelphia flights are approximately 8% more expensive when compared to flights at the same time last year.
What is the cheapest airline that flies from London Heathrow to Philadelphia?
Aer Lingus, British Airways, and Iberia are the most popular carriers operating from London Heathrow to Philadelphia
Which airlines fly to Philadelphia?
British Airways, Lufthansa and Finnair are the top three most popular airlines that fly to Philadelphia from London Heathrow Airport according to our data. British Airways is the first choice among our users, with 47% of people opting to fly with this airline when travelling to Philadelphia. Keep in mind that there are 19 different airlines that fly to Philadelphia on a routine basis, so you have a few additional options to choose from.
How many flights depart from London Heathrow Airport to Philadelphia on average per day?
The number of flights available between London Heathrow Airport and Philadelphia is 14 per day as of June 2025. The most frequent departure time is 10:00, with 66% of daily flights leaving in the afternoon.
How many flights depart from London Heathrow Airport to Philadelphia on average per week?
100 flights are operational weekly from London Heathrow Airport to Philadelphia as of June 2025. The most popular departure day for this route is Mon, with 15% of flights per week taking off on this day.
When to book flights from London Heathrow Airport to Philadelphia
Cheap London Heathrow Airport to Philadelphia (LHR to PHL) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Philadelphia
Best price found | £296 |
|---|---|
Fastest flight time | 7h 55m |
Direct flights | Every day |
Airports in Philadelphia | 1 airport |
How far is London Heathrow to Philadelphia by plane?
London Heathrow and Philadelphia are 3526.0 mi apart from one another. Flights usually cover this in 7h 55m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from London Heathrow Airport to Philadelphia Airport?
Prices for flights from London Heathrow Airport to Philadelphia Airport are updated daily.
How many operators does momondo search for flights from London Heathrow Airport to Philadelphia Airport?
The number of operators available for flights from London Heathrow Airport to Philadelphia Airport is 11 as of June 2025.
How old do you have to be to fly from London Heathrow Airport to Philadelphia Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London Heathrow Airport to Philadelphia Airport.
What documentation or ID do you need to fly to Philadelphia Airport?
The travel and health documents required for your trip to Philadelphia Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Philadelphia Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from London Heathrow Airport to Philadelphia?
momondo data reveals that the most frequently booked plane model on the route from London Heathrow Airport to Philadelphia is Airbus A350-1000, representing 56.49% of all bookings. The subsequent popular models are Airbus A319 at 8.84%, Boeing 777 at 5.66%, and Boeing 777-200/200ER at 4.95%.
What is the most popular airline from London Heathrow Airport to Philadelphia?
Based on momondo bookings for this flight route, the most popular airline on flight routes from London Heathrow Airport to Philadelphia is British Airways (60% of total bookings). The next most popular airlines are Finnair (20%), Iberia (5%), and Aer Lingus (4%).
Best airlines flying from London Heathrow Airport to Philadelphia
Compare and see reviews for airlines that fly from London Heathrow Airport to Philadelphia with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom £298 | Free Cancellation | Rating 7.4 8,790 reviews | |||
| PriceFrom £331 | Free Cancellation | Rating 7.0 499 reviews | |||
| PriceFrom £333 | Free Cancellation | Rating 7.1 9,537 reviews | |||
| PriceFrom £350 | Free Cancellation | Rating 7.3 2,923 reviews | |||
| PriceFrom £407 | Free Cancellation | Rating 6.7 7,139 reviews | |||
| PriceFrom £427 | Free Cancellation | Rating 6.6 7,011 reviews | |||
| PriceFrom £439 | Free Cancellation | Rating 7.6 1,290 reviews | |||
| PriceFrom £448 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom £458 | Free Cancellation | Rating 7.4 652 reviews | |||
| PriceFrom £459 | Free Cancellation | Rating 7.1 1,118 reviews |
Finnair Flights From London Heathrow Airport to Philadelphia
Finnair flies from London Heathrow Airport to Philadelphia around 21 times per week, with 1,290 momondo users rating the airline 7.6/10. The cheapest Finnair deal from London Heathrow Airport to Philadelphia in the last 72 hours was £597 (round-trip), much lower than the average airfare cost of £771 for Finnair flights on this route.
American Airlines Flights From London Heathrow Airport to Philadelphia
£609 is the best American Airlines flight deal from London Heathrow Airport to Philadelphia found on momondo over the last 72 hours. The average American Airlines ticket price found was closer to £801, however, with flight time and availability significantly affecting the price. American Airlines (7.2/10 from 10,000 user reviews) flies into Philadelphia from London Heathrow Airport 21 times in an average week so prices can vary.
Travelling to a place near Philadelphia?
Book flights to Philadelphia if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from London to Philadelphia?
We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from London to Philadelphia for you.
Can I find flights from London to Philadelphia with flexible booking policies on momondo?
momondo does allow users to show only those flights to Philadelphia from London which offer a flexible booking policy as well as other useful filters and features.
How can momondo help me find flights from London to Philadelphia?
momondo provides multiple filters to help you find the best flight to Philadelphia from London. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from London to Philadelphia right now. Can momondo alert me if prices change?
Price alerts on flights to Philadelphia from London are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.