Cheap Flights from London to Philadelphia International

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Compare London to Philadelphia International flight deals

Find the cheapest month or even day of the year to fly to Philadelphia International

Book the best Philadelphia International fare with no extra fees

Flight deals Cheapest month Find the best route Route info FAQs Tips and advice

Flight deals from London to Philadelphia International

Looking for a cheap last-minute deal or the best return flight from London Airport to Philadelphia International Airport? If you want to travel next month, return fares start from $1,064. Find the lowest prices on one-way and return tickets right here.

Philadelphia.$933 per passenger.Departing Tue, 20 Apr, returning Fri, 23 Apr.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from London on Tue, 20 Apr, arriving in Philadelphia International.Inbound indirect flight with Air Canada, departs from Philadelphia International on Fri, 23 Apr, arriving in London.Price includes taxes and charges.From $933, select.

Philadelphia.$1,064 per passenger.Departing Fri, 23 Oct, returning Fri, 30 Oct.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from London on Fri, 23 Oct, arriving in Philadelphia International.Inbound indirect flight with Air Canada, departs from Philadelphia International on Fri, 30 Oct, arriving in London.Price includes taxes and charges.From $1,064, select.

Philadelphia.$2,173 per passenger.Departing Tue, 15 Sep, returning Thu, 17 Sep.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from London on Tue, 15 Sep, arriving in Philadelphia International.Inbound indirect flight with Air Canada, departs from Philadelphia International on Thu, 17 Sep, arriving in London.Price includes taxes and charges.From $2,173, select.

Find the cheapest month to fly from London to Philadelphia International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like London to Philadelphia International flights are currently cheapest in April.

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London to Philadelphia International: Alternative routes

Compare routes from London to Philadelphia below. You may find an airport to fly into that's cheaper, faster, or easier than Philadelphia International.

London to Philadelphia: Flight information

The things to know before you go.

Cheapest flight found	$933
Cheapest month to fly	April

Finding cheap flights from London to Philadelphia International: Frequently asked questions

How much are return flights from London to Philadelphia International?

The best price we found for a return flight from London to Philadelphia International is $933. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

Which airlines fly direct from London to Philadelphia International?

Currently, there are no airlines that fly direct from London to Philadelphia International. But we found flights with one or more stops from $933.

How many flights are there a week from London to Philadelphia International?

As of September 2026, there are no flights flying from London to Philadelphia International.

When is the cheapest time to fly from London to Philadelphia International?

The cheapest month to fly from London to Philadelphia International is usually April.

Which upcoming date is cheapest to fly from London Airport to Philadelphia International Airport on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from London Airport to Philadelphia International Airport on Tuesday, 20 April 2027.

Can I get a direct flight from London Airport to Philadelphia International Airport?

No airlines currently offer direct flights between London Airport and Philadelphia International Airport. Most routes have one or more stops.

How can I find the best flight deal to Philadelphia International?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Philadelphia International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to Philadelphia?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Philadelphia is around 40 days in advance, so don’t leave your flight to the last minute.

Which is the cheapest airline to fly from London Airport to Philadelphia International with?

Currently, Air Canada offers the cheapest flight tickets to Philadelphia International.

Travelling from London International Airport (YXU) to Philadelphia International Airport (PHL): what you need to know

London and Philadelphia follow the same timezone, UTC-4.
For a stress-free journey, arrive at the airport two hours ahead of international flights and one hour before domestic departures. This way, you'll have plenty of time to board your YXU to PHL flight.
Be prepared for longer lines during popular months like August. Arriving up to four hours in advance for an international flight and two hours for domestic departures is a wise move.

How to find the cheapest flights from London International Airport (YXU) to Philadelphia International Airport (PHL)

At the moment, $614 is the lowest price we've found for a one-way London International Airport to Philadelphia International Airport flight. The best price for a return plane ticket is $933. Remember that fares could change due to demand when booking.
To find cheap tickets from YXU to PHL, book as early as you can. Airlines generally offer lower fares when flights are first made available.
If you're flexible with your trip dates, use the 'Whole month' search function. It'll give you the lowest price across the month when searching for your flight from London International Airport to Philadelphia International Airport.
Cut down on the time spent looking for cheap flights from YXU to PHL by setting up a Price Alert. We'll send you an email or push notification on the app when a lower fare becomes available.
Tailor your flights using filters. Select your ideal departure and arrival times, airlines and total journey duration. You can also sort your results by 'Fastest,' 'Cheapest' or 'Best' flights from London International Airport to Philadelphia International Airport.

Handy information about London International Airport (YXU)

Of all flights departing from London International Airport, 50.41% arrive on time at their destination.
Central London to London International Airport is around 11 kilometres. Depending on traffic, it'll take about 20 minutes to get there if you're driving, catching a cab or ride-sharing.
Expect a journey time of around 55 minutes when using public transport.
Get your break off to a hassle-free start by staying near YXU. Whether you've booked an early flight from London International Airport to Philadelphia International Airport or just don't want to be rushed, these stays are perfect:

Arriving at Philadelphia International Airport (PHL)

Consider booking a hotel near PHL if you're on a late London International Airport to Philadelphia International Airport flight. Settle into one of these accommodation options and skip the long transfer:
Grab a Philadelphia International Airport rental car and explore Philadelphia and beyond with your own set of wheels. Dollar, Thrifty and Budget are top outlets to choose from here.
Reserving your vehicle from Philadelphia International Airport around three weeks in advance can help you secure the lowest rate.

Getting from Philadelphia International Airport (PHL) to central Philadelphia

The address for PHL is Industrial Highway and Island Road.
Philadelphia International Airport to central Philadelphia has a drive time of about 15 minutes. It's approximately 19 kilometres away.
It takes around 45 minutes if you're using public transport.

When to fly to Philadelphia International Airport (PHL)

The quietest month for a flight from London International Airport to Philadelphia International Airport is February, while August is the busiest. Pick the best time to go to Philadelphia based on whether you prefer a faster pace or a more relaxed vibe.
Book your flight from London International Airport to Philadelphia International Airport for July if you'd like to go to Philadelphia during its warmest month. You can expect temperatures of between 18ºC and 32ºC.
Search for cheap tickets from YXU to PHL in January if you like cooler conditions. Temperatures are at their lowest then, ranging between -7ºC and 9ºC on average.

Explore more of United States

You've seen Philadelphia, now it's time to explore other corners of United States. Journey around 129 kilometres north-east to New York to check off its top sights. From Statue of Liberty to Central Park and Empire State Building, there's plenty to keep you on the go.
Boston is another sought-after destination in United States and is around 434 kilometres north-east of Philadelphia. No journey is complete without seeing Freedom Trail, Museum of Fine Arts Boston and Boston Tea Party Ships & Museum.