Cheap flights from London Heathrow Airport to Philadelphia from £307
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 11/6. 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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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 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 £499.
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 £616. 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 £675.
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 £502. In the morning is when there is more demand to fly to Philadelphia, so prices are often more expensive at around £646 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 25 weeks ahead of your departure date. In general, you can expect to find flights to Philadelphia for around £568 when searching 25 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 £507 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.
What is the cheapest airline that flies from London Heathrow to Philadelphia?
Aer Lingus, WestJet, and Finnair 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 48% 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 April 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 April 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 | £307 |
|---|---|
Fastest flight time | 7h 45m |
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 45m, 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 April 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 50.82% of all bookings. The subsequent popular models are Airbus A319 at 10.17%, Boeing 777 at 6.04%, and Airbus A330-200 at 6.00%.
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 (59% of total bookings). The next most popular airlines are Finnair (22%), Aer Lingus (5%), and Iberia (5%).
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 £302 | Free Cancellation | Rating 7.4 8,696 reviews | |||
| PriceFrom £336 | Free Cancellation | Rating 7.0 487 reviews | |||
| PriceFrom £338 | Free Cancellation | Rating 7.0 9,244 reviews | |||
| PriceFrom £355 | Free Cancellation | Rating 7.3 2,922 reviews | |||
| PriceFrom £425 | Free Cancellation | Rating 6.7 7,044 reviews | |||
| PriceFrom £433 | Free Cancellation | Rating 6.6 6,842 reviews | |||
| PriceFrom £447 | Free Cancellation | Rating 7.6 1,275 reviews | |||
| PriceFrom £464 | Free Cancellation | Rating 7.4 642 reviews | |||
| PriceFrom £465 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom £465 | Free Cancellation | Rating 7.0 1,076 reviews |
Finnair Flights From London Heathrow Airport to Philadelphia
Finnair flies from London Heathrow Airport to Philadelphia around 20 times per week, with 1,275 momondo users rating the airline 7.6/10. The cheapest Finnair deal from London Heathrow Airport to Philadelphia in the last 72 hours was £600 (round-trip), much lower than the average airfare cost of £761 for Finnair flights on this route.
American Airlines Flights From London Heathrow Airport to Philadelphia
£623 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 £809, 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 20 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.