Cheap flights from London to Philadelphia from $186
This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from London to Philadelphia departing on 7/20. 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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Finnair flights from London to Philadelphia
Our best Finnair deals on London to Philadelphia flight tickets
Lufthansa flights from London to Philadelphia
Our best Lufthansa deals on London to Philadelphia flight tickets
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How to get the cheapest flight ticket from London 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 and Philadelphia?
What is the cheapest month to fly to Philadelphia?
The cheapest month to fly to Philadelphia from London is in February. Flight prices, which tend to average around $664, are often lower during this time because this is during the off-season. The month of September is another great option to travel to Philadelphia, with average flight prices from London averaging around $679.
What is the cheapest day to depart on your flight to Philadelphia?
The cheapest day to depart from London to Philadelphia is on a Tuesday. Travelers who choose to depart for Philadelphia on a Tuesday will often find tickets for as low as $762. On the other hand, Friday is the most expensive day to depart from London because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $921.
What is the cheapest time of day to depart on your flight to Philadelphia?
According to our data, the cheapest time of day to fly to Philadelphia is in the evening. momondo users have found flights departing from London to Philadelphia in the evening for as low as $704. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Philadelphia is in the morning when prices are around $850.
What is the cheapest London to Philadelphia flight route?
Fly from London Heathrow to Philadelphia for the best London - 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 when booking 25 weeks ahead of your departure date. In general, you can expect to find flights to Philadelphia for around $760 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 for as low as $680 on momondo.
What cabin class options are available on London to Philadelphia flights?
There are 3 cabin classes available to choose from on London 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 to Philadelphia?
Aer Lingus and Lufthansa are the most popular carriers operating from London to Philadelphia
What airlines fly to Philadelphia?
British Airways, United Airlines and Lufthansa are the top three most popular airlines that fly to Philadelphia from London according to our data. British Airways is the first choice among our users, with 39% of people opting to fly with this airline when traveling to Philadelphia. Keep in mind that there are 12 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 to Philadelphia on average per day?
The number of flights available between London and Philadelphia is 14 per day as of May 2025. The most frequent departure time is 10:00AM, with 65% of daily flights leaving in the afternoon.
How many flights depart from London to Philadelphia on average per week?
The number of flights available between London and Philadelphia is 104 per week as of May 2025. The most frequent departure day is Mon, with 14% of weekly flights leaving on this day.
When to book flights from London to Philadelphia
Cheap London to Philadelphia (LON to PHL) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from London to Philadelphia
Best Price Found | $305 |
|---|---|
Fastest flight time | 7h 45m |
Direct flights | Every day |
Airports in Philadelphia | 1 airport |
How far is London to Philadelphia by plane?
There are 3538.9 mi between London and Philadelphia. 7h 45m is a normal flight duration for this route.
When did momondo last update prices for flights from London to Philadelphia Airport?
Prices for flights from London to Philadelphia Airport are updated daily.
How many operators does momondo search for flights from London to Philadelphia Airport?
There are 5 operators available for flights from London to Philadelphia Airport as of May 2025.
How old do you have to be to fly from London to Philadelphia Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London to Philadelphia Airport.
What documentation or ID do you need to fly to Philadelphia Airport?
The travel and health documents you'll need for your trip to Philadelphia Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Philadelphia Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from London to Philadelphia?
Based on momondo bookings for flights between London and Philadelphia, the leading plane model is Airbus A350-1000, making up 53.34% of the total bookings. Other popular models include Airbus A319 with 9.50%, Boeing 777 with 5.59%, and Airbus A330-200 with 5.04%.
What is the most popular airline from London to Philadelphia?
Based on momondo bookings for flights between London and Philadelphia, the leading airline is British Airways, making up 47% of the total bookings. Other popular airlines include American Airlines with 25%, Iberia with 12%, and Finnair with 8%.
Best airlines flying from London to Philadelphia
Compare and see reviews for airlines that fly from London to Philadelphia with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $583 | Free Cancellation | Rating 6.6 6,886 reviews | |||
| PriceFrom $596 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $644 | Free Cancellation | Rating 7.0 2,728 reviews | |||
| PriceFrom $648 | Free Cancellation | Rating 7.6 1,278 reviews | |||
| PriceFrom $662 | Free Cancellation | Rating 7.1 1,089 reviews |
Finnair Flights From London to Philadelphia
Finnair flight deals from London to Philadelphia start from $648 round-trip. Over the 21 Finnair flights for this route in a normal week, average airfare is usually $773 round-trip - but some users have found much cheaper deals with momondo.
American Airlines Flights From London to Philadelphia
Across 10,000 American Airlines reviews on momondo, the average score is 7.2/10. American Airlines flies from London to Philadelphia about 21 times each week, with ticket deals ranging from $596 to $800. Price data is based on momondo searches in the last 72 hours.
Traveling 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?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Philadelphia from London.
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?
Once you have performed a search for London to Philadelphia flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.
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.