Cheap Flights from Philadelphia to London from 500 €

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Flight deals from Philadelphia to London

Looking for a cheap last-minute deal or the best return flight from Philadelphia to London? Find the lowest prices on one-way and return tickets right here.

London.500 € per passenger.Departing Sun, 6 Apr, returning Tue, 22 Apr.Return flight with Spirit Airlines and Norse Atlantic Airways (UK).Outbound indirect flight with Spirit Airlines, departs from Philadelphia International on Sun, 6 Apr, arriving in London Gatwick.Inbound indirect flight with Norse Atlantic Airways (UK), departs from London Gatwick on Tue, 22 Apr, arriving in Philadelphia International.Price includes taxes and charges.From 500 €, select.

London.515 € per passenger.Departing Wed, 19 Mar, returning Wed, 26 Mar.Return flight with Spirit Airlines and Fly Play.Outbound indirect flight with Spirit Airlines, departs from Philadelphia International on Wed, 19 Mar, arriving in London Gatwick.Inbound indirect flight with Fly Play, departs from London Stansted on Wed, 26 Mar, arriving in Philadelphia International.Price includes taxes and charges.From 515 €, select.

London.530 € per passenger.Departing Mon, 31 Mar, returning Mon, 12 May.Return flight with Spirit Airlines and Norse Atlantic Airways (UK).Outbound indirect flight with Spirit Airlines, departs from Philadelphia International on Mon, 31 Mar, arriving in London Gatwick.Inbound indirect flight with Norse Atlantic Airways (UK), departs from London Gatwick on Mon, 12 May, arriving in Philadelphia International.Price includes taxes and charges.From 530 €, select.

London.539 € per passenger.Departing Tue, 29 Apr, returning Thu, 1 May.Return flight with Spirit Airlines and Norse Atlantic Airways (UK).Outbound indirect flight with Spirit Airlines, departs from Philadelphia International on Tue, 29 Apr, arriving in London Gatwick.Inbound indirect flight with Norse Atlantic Airways (UK), departs from London Gatwick on Thu, 1 May, arriving in Philadelphia International.Price includes taxes and charges.From 539 €, select.

London.558 € per passenger.Departing Tue, 13 May, returning Thu, 15 May.Return flight with Spirit Airlines and Norse Atlantic Airways (UK).Outbound indirect flight with Spirit Airlines, departs from Philadelphia International on Tue, 13 May, arriving in London Gatwick.Inbound indirect flight with Norse Atlantic Airways (UK), departs from London Gatwick on Thu, 15 May, arriving in Philadelphia International.Price includes taxes and charges.From 558 €, select.

London.568 € per passenger.Departing Wed, 26 Mar, returning Wed, 2 Apr.Return flight with jetBlue and easyJet.Outbound indirect flight with jetBlue, departs from Philadelphia International on Wed, 26 Mar, arriving in London Stansted.Inbound indirect flight with easyJet, departs from London Luton on Wed, 2 Apr, arriving in Philadelphia International.Price includes taxes and charges.From 568 €, select.

London.587 € per passenger.Departing Sat, 17 May, returning Tue, 3 Jun.Return flight with Spirit Airlines and Norse Atlantic Airways (UK).Outbound indirect flight with Spirit Airlines, departs from Philadelphia International on Sat, 17 May, arriving in London Gatwick.Inbound indirect flight with Norse Atlantic Airways (UK), departs from London Gatwick on Tue, 3 Jun, arriving in Philadelphia International.Price includes taxes and charges.From 587 €, select.

London.612 € per passenger.Departing Tue, 23 Sep, returning Tue, 7 Oct.Return flight with Aer Lingus.Outbound indirect flight with Aer Lingus, departs from Philadelphia International on Tue, 23 Sep, arriving in London Heathrow.Inbound indirect flight with Aer Lingus, departs from London Heathrow on Tue, 7 Oct, arriving in Philadelphia International.Price includes taxes and charges.From 612 €, select.

Find the cheapest month to fly from Philadelphia to London

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

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Direct flights from Philadelphia to London

Alternative Philadelphia to London routes

Looking for the cheapest, fastest or easiest route from Philadelphia to London? You could fly into the following airports instead.

Philadelphia to London: Flight information

The things to know before you go.

Cheapest flight found	500 €
Cheapest month to fly	April
Average flight time	7 hrs, 9 mins
Most popular airline	Finnair
Average flights per week	117

Finding cheap flights from Philadelphia to London: Frequently asked questions

How many airports are there in London?

There are 6 airports in London: London City, London Heathrow, London Gatwick, London Luton, London Stansted, and London Southend.

How much are return flights from Philadelphia to London?

The best price we found for a return flight from Philadelphia to London is 500 €. 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.

How long does it take to fly from Philadelphia to London?

7 hours and 9 minutes is the average flight time from Philadelphia to London.

Which airlines fly direct from Philadelphia to London?

Finnair, Iberia and American Airlines fly direct from Philadelphia to London.

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

As of February 2025, there are 117 flights per week flying from Philadelphia to London.

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

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

Which is the cheapest airport to fly into in London?

If you're flying from Philadelphia, the cheapest airport near London is London Gatwick – which is 40.3 km away from the centre of London. We've found flights into this airport from 500 €.

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

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Philadelphia to London on Sunday, 6 April 2025.

Can I get a direct flight from Philadelphia to London?

Yes – the average flight time is 7 hours and 9 minutes.

How can I get the best flight deal from Philadelphia to London?

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 London 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 London?

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

What’s the weather like in London?

In February, the average temperature is usually around 4°C. August is typically the warmest month in London, when it usually averages around 22°C. You can expect the least rain in March. The coldest month is January, with temperatures averaging 1°C. The rainiest month is October.

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

The cheapest airline that flies to London is Spirit Airlines. And the cheapest airline that flies to London Heathrow Airport is Finnair.

Travelling from Philadelphia to London: what you need to know

Philadelphia International Airport (PHL) is Philadelphia's main airport. Check out your options for booking a flight from Philadelphia to London departing from here.
Touch down at London Heathrow Airport (LHR), London Gatwick Airport (LGW) or one of London's other terminals. They include Stansted Airport (STN), London Luton Airport (LTN) and London City Airport (LCY).
The average length of a direct flight from Philadelphia to London is 7 hours 2 minutes. London's timezone is UTC+0, which makes London 4 hours ahead of Philadelphia.
The busiest route for flights from Philadelphia to London is from Philadelphia International Airport (PHL) to London Heathrow Airport (LHR). Take your pick of 26 services every week between these two airports. If you'd like to get going first thing, the earliest flight from PHL to LHR is the 18:30 British Airways service. If you prefer travelling later, the final departure is at 23:10 with American Airlines.
Give yourself plenty of time to make your flight from Philadelphia to London. It's generally best to arrive two hours before international departures and an hour ahead for domestic flights.
You'll likely experience longer lines during popular months such as August and other peak seasons. Arriving up to four hours in advance for an international flight and two hours for domestic departures is a wise move.
You can enter United Kingdom for tourism purposes without a visa if you hold a passport from United States. But before organising your cheap flight from Philadelphia to London, make sure you're up to date with the latest guidelines. Visa rules are subject to change, and you may need some documentation if your trip is for business or other reasons.

Flying from Philadelphia

Philadelphia International Airport (PHL)

You can get a direct flight from Philadelphia to London jetting off from Philadelphia International Airport (PHL). Begin your trip at PHL and arrive at London Heathrow Airport (LHR).
American Airlines is a well-known airline that offers direct flights from Philadelphia to London jetting out of PHL.
We make it a piece of cake to plan a flight from Philadelphia to London with a stopover. To see the options leaving from Philadelphia International Airport, deselect 'Direct flights only.' Then, simply pick a flight offering a stop long enough to explore the city of your choice. Major stopovers include:
- Dublin Airport (DUB)
- Montreal-Pierre Elliott Trudeau International Airport (YUL)
- Logan International Airport (BOS)
Travelling from central Philadelphia to PHL takes around 44 minutes by public transport. If you drive, ride-share or get a cab, you'll cover the 19 kilometres in 17 minutes or so, depending on traffic.
Want an easy start to your holiday? Stay near Philadelphia International Airport. Whether you're catching an early flight from Philadelphia to London or want to avoid feeling rushed, these hotels are perfect:

Arriving in London

London Heathrow Airport (LHR)

London Heathrow Airport (LHR) to central London is approximately 31 kilometres. It'll take you around 57 minutes to reach the centre driving.
Travelling to the centre by public transport will take you around 1 hour and 1 minute.
If you're arriving on a late flight from Philadelphia to London, few things beat the convenience of staying near the terminal. Grab your luggage from the carousel and then be showered and relaxing not long after at one of these accommodation options near LHR:

London Gatwick Airport (LGW)

As soon as your flight from Philadelphia to London has touched down, you can get to the city centre in about 1 hour and 19 minutes by car. Central London is roughly 80 kilometres from London Gatwick Airport (LGW).
You can expect the trip to take roughly 1 hour and 26 minutes on public transport.
You'll find some comfortable hotels ready to welcome you near LGW. Tuck yourself in after your flight from Philadelphia to London at any of these perfectly located options:

How to find the cheapest flights from Philadelphia to London

192 € is currently the lowest price for a one-way ticket from Philadelphia to London. Return flights start at 500 €. These prices can change based on availability and demand.
Score cheap tickets from Philadelphia to London by booking 11 months ahead. Based on our research, that's the sweet spot for landing a bargain.
July is the cheapest month for tickets from Philadelphia to London. If you'd like to travel during a different time of year, the 'Whole month' tool will give you the lowest prices across every month.
Getting a cheap ticket from Philadelphia to London is a piece of cake with Price Alerts. All you need to do is set up one of these automatic alerts and we'll notify you when there's a better deal.
Tailor your travel plans using filters. Pick your departure and arrival times, airlines and total journey duration. You can also sort results by 'Best,' 'Fastest' or 'Cheapest' flights from Philadelphia to London.

Best time to go to London

February is the quietest month for flights from Philadelphia to London, while July is the most popular. Find the best time to go to London based on whether you like a laid-back vibe or a more bustling atmosphere.
Book your flight from Philadelphia to London for July if you want to visit the city during its warmest month. You can expect temperatures in London to range from 11ºC to 26ºC.
Search for cheap tickets from Philadelphia to London in January if you want to travel in cooler conditions. Temperatures are at their lowest then, ranging between 0ºC and 9ºC on average.

More about London

When it comes to searching for somewhere to lay your head, you'll find the most popular stays in London right here. Check out these options once you've booked your flight from Philadelphia to London:
Big Ben and The British Museum are just the start of the top-rated attractions to put on your London to-do list. Keep the sightseeing going at Buckingham Palace.

Complete your London trip with a car rental

Finding you a cheap flight from Philadelphia to London isn't our only party trick. Check out our car rentals in London and explore the city on your own terms. We search for deals from trusted car rental providers and put them all in one place. Instantly compare rates and then book with no fees.