How long is the flight from Philadelphia to London?

For as low as £715, JetBlue can have you in London from Philadelphia in 7h. There are 3533 mi between Philadelphia and London. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

What is the cheapest airline to fly from Philadelphia to London round-trip?

Flying on British Airways is currently your cheapest option to London, with prices starting at £514. British Airways is currently priced 32% below the average price you’ll pay for this route.

In terms of precipitation, rainfall in London ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London when rainfall is around 40.0 mm.

If weather is an important factor for your trip to London, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

What are the most popular routes from Philadelphia to London?

The most popular route from Philadelphia to London is Philadelphia - London Heathrow. You may also consider Philadelphia - London Gatwick or Philadelphia - London City.

What are the cheapest flights from Philadelphia to London?

Looking for the cheapest flight from Philadelphia to London? While on average our users pay £959, our data indicates the cheapest price to be £530. The most popular route (Philadelphia - London Heathrow), is priced around £581.

What are the most reliable airlines from Philadelphia to London?

Consider Malaysia Airlines (94%), American Airlines (91%) or British Airways (91%) when booking your flight. These represent the most reliable airlines when flying from Philadelphia to London.

What airport do you fly from for flights from Philadelphia to London?

Located just 7.0 mi from the city center, Philadelphia is the airport most travelers will use when flying to London from Philadelphia. Booking flights from Philadelphia (PHL) to London should be relatively easy as there are 5 daily outbound flights to London from 1 airline.

Can I find deals for flights from Philadelphia to London that include hotel bookings?

Yes. In addition to deals on Philadelphia to London flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Philadelphia to London?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Philadelphia to London.

Can I find deals for business class flights from Philadelphia to London?

Yes. Cheapflights offers flight deals from Philadelphia to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£217+ Cheap Flights from Philadelphia to London

Cheapflights Tip: The best prices from Philadelphia to London are usually found in January or February, booked 67 days in advance, depart on a Monday or Wednesday and return on a Tuesday

Cheap flight deals from Philadelphia to London

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

Cheapest flights from Philadelphia to London
Explore the most affordable flight options available from Philadelphia to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 October 2026.

Sun 6/1209:30 -

1 stop16h 25m

Thu 10/1209:20 -

1 stop14h 23m

Deal found 29/10£617

Thu 10/1209:30 -

1 stop16h 25m

Thu 14/109:20 -

1 stop28h 17m

Deal found 29/10£621

Sun 8/1117:40 -

2 stops14h 20m

Wed 25/1108:15 -

3 stops21h 15m

Deal found 27/10£621

Sun 8/1107:00 -

1 stop18h 55m

Sat 14/1109:20 -

1 stop16h 17m

Deal found 27/10£621

Mon 9/1110:27 -

1 stop15h 28m

Thu 12/1109:20 -

1 stop16h 51m

Deal found 26/10£622

Wed 11/1109:15 -

3 stops27h 45m

Mon 16/1118:50 -

3 stops26h 15m

Deal found 29/10£623

Fri 27/1113:25 -

1 stop12h 30m

Sat 5/1209:20 -

1 stop14h 23m

Deal found 29/10£624

Thu 3/1209:30 -

1 stop16h 25m

Sat 12/1209:20 -

1 stop14h 23m

Deal found 27/10£625

Mon 9/1110:27 -

1 stop15h 28m

Wed 11/1109:20 -

1 stop12h 48m

Deal found 26/10£626

Wed 25/1119:45 -

1 stop30h 10m

Wed 9/1209:20 -

1 stop14h 23m

Deal found 29/10£628

Mon 30/1117:40 -

1 stop21h 35m

Wed 9/1217:45 -

2 stops27h 25m

Deal found 27/10£628

Tue 10/1117:40 -

2 stops22h 45m

Tue 17/1107:55 -

3 stops19h 51m

Deal found 28/10£629

Best flights from Philadelphia to London
Discover carefully curated flight deals from Philadelphia to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 30 October 2026.

Sun 28/209:25 -

1 stop16h 30m

Sat 13/309:20 -

1 stop16h 03m

Deal found 25/10£629

Sun 4/420:25 -

1 stop11h 10m

Sun 11/406:25 -

2 stops17h 30m

Deal found 25/10£675

Sun 28/218:35 -

Nonstop7h 00m

Fri 12/313:10 -

Nonstop8h 05m

Deal found 25/10£715

Tue 5/109:30 -

3 stops31h 05m

Wed 13/118:30 -

2 stops30h 08m

Deal found 29/10£720

Sat 27/209:01 -

1 stop16h 54m

Tue 30/308:40 -

1 stop13h 52m

Deal found 28/10£629

Sun 6/1217:40 -

2 stops14h 20m

Thu 10/1207:20 -

3 stops22h 29m

Deal found 26/10£678

Mon 1/318:35 -

Nonstop7h 00m

Fri 12/313:10 -

Nonstop8h 05m

Deal found 25/10£715

Tue 10/1110:27 -

3 stops26h 03m

Tue 17/1106:00 -

3 stops43h 37m

Deal found 27/10£734

Sun 28/217:40 -

1 stop9h 10m

Tue 9/307:15 -

1 stop13h 55m

Deal found 25/10£682

Mon 1/321:10 -

1 stop10h 20m

Wed 17/306:30 -

1 stop12h 35m

Deal found 29/10£684

Wed 31/312:15 -

3 stops29h 40m

Wed 7/406:00 -

2 stops21h 31m

Deal found 27/10£770

Mon 5/418:30 -

1 stop10h 05m

Mon 12/407:30 -

1 stop13h 40m

Deal found 28/10£701

Wed 25/1109:15 -

2 stops19h 35m

Mon 30/1110:50 -

3 stops34h 15m

Deal found 26/10£704

Tue 17/1117:40 -

2 stops23h 05m

Mon 21/1206:35 -

1 stop14h 35m

Deal found 28/10£738

Tue 19/115:20 -

3 stops26h 00m

Mon 25/116:45 -

3 stops28h 36m

Deal found 28/10£738

Wed 25/1118:35 -

Nonstop7h 00m

Wed 9/1206:30 -

1 stop12h 35m

Deal found 26/10£738

Mon 7/1219:35 -

Nonstop7h 15m

Tue 15/1206:30 -

1 stop12h 35m

Deal found 29/10£738

Sun 6/1217:40 -

2 stops23h 10m

Sun 13/1206:50 -

3 stops20h 56m

Deal found 27/10£741

Tue 10/1117:58 -

3 stops18h 32m

Tue 17/1108:15 -

3 stops41h 22m

Deal found 29/10£756

Sat 27/219:50 -

Nonstop7h 00m

Sat 6/306:30 -

1 stop12h 35m

Deal found 28/10£760

Mon 1/317:40 -

1 stop9h 50m

Wed 24/312:45 -

2 stops22h 50m

Deal found 29/10£820

Mon 1/317:40 -

1 stop11h 40m

Mon 8/308:20 -

1 stop12h 50m

Deal found 25/10£836

Sun 28/217:40 -

1 stop11h 45m

Mon 8/308:20 -

1 stop12h 50m

Deal found 25/10£839

Find flight deals from Philadelphia to London

Round-trip from	£617
One-way from	£217
Popular in	June
Cheapest in	January
Average price	£790
Good round-trip deal	£901 or less

JetBlue
6/12-10/12
2 total stops
30h 48m total
Philadelphia to London

Search Deals

JetBlue
10/3-31/12
1 total stop
16h 30m total
Philadelphia to London

Search Deals

Highest demand for flights based on searches. 19% potential increase in price (£140 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease (£25 potential savings vs. average return price).

Search Deals

Average for round-trip flights in October 2026

Search Deals

Price to beat on a round-trip flight from Philadelphia to London (LON).

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Philadelphia to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

PhiladelphiaLondon

PHL Philadelphia - LHR London Heathrow

PHLLHR

Philadelphia

Fri 13/11

15:35-06:55

1 stop10h 20m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£217

PhiladelphiaLondon

PHL Philadelphia - LHR London Heathrow

PHLLHR

Philadelphia

Sat 14/11

15:35-06:55

1 stop10h 20m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£224

PhiladelphiaLondon

PHL Philadelphia - LHR London Heathrow

PHLLHR

Philadelphia

Thu 7/1

09:30-06:53

1 stop16h 23m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£224

PhiladelphiaLondon

PHL Philadelphia - STN London Stansted

PHLSTN

Philadelphia

Mon 25/1

11:27-17:50

3 stops25h 23m

London Stansted

Wed 31/12

00:00-18:00

Nonstop0h 00m

£247

PhiladelphiaLondon

PHL Philadelphia - STN London Stansted

PHLSTN

Philadelphia

Sun 15/11

17:40-09:40

1 stop11h 00m

London Stansted

Wed 31/12

00:00-18:00

Nonstop0h 00m

£252

PhiladelphiaLondon

PHL Philadelphia - STN London Stansted

PHLSTN

Philadelphia

Mon 9/11

17:40-14:05

1 stop15h 25m

London Stansted

Wed 31/12

00:00-18:00

Nonstop0h 00m

£253

PhiladelphiaLondon

PHL Philadelphia - STN London Stansted

PHLSTN

Philadelphia

Sun 8/11

17:40-23:59

2 stops25h 19m

London Stansted

Wed 31/12

00:00-18:00

Nonstop0h 00m

£258

PhiladelphiaLondon

PHL Philadelphia - STN London Stansted

PHLSTN

Philadelphia

Sun 6/12

17:40-23:59

2 stops25h 19m

London Stansted

Wed 31/12

00:00-18:00

Nonstop0h 00m

£260

Fastest return journey

PhiladelphiaLondon

PHL Philadelphia - LHR London Heathrow

PHLLHR

Philadelphia

Wed 24/3

19:35-06:35

Nonstop7h 00m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£266

PhiladelphiaLondon

PHL Philadelphia - LHR London Heathrow

PHLLHR

Philadelphia

Wed 27/1

15:05-10:25

2 stops14h 20m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£269

Flights are sorted by cheapest return flights first.

Deals found on 25/10

Showing 1-10 of 44 resultsSorted by cheapest first

...

Best time to book a flight from Philadelphia to London

Have a flexible travel schedule? Discover the best time to fly to London from Philadelphia with our price prediction graph.

PHL-LON

PHL-LHR

PHL-STN

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Philadelphia to London

PHL-LON

PHL-LHR

PHL-STN

What is the cheapest month to book a flight from Philadelphia to London?

Currently, February is the cheapest month in which you can book a flight from Philadelphia to London (average of £552). Flying from Philadelphia to London in June is currently the most expensive (average of £1,111). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PHL to LON?

When flying from Philadelphia to London, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost for a return flight from Philadelphia to London?

Airfare is typical for this route at the moment.

Philadelphia to London flights typically cost between £613 and £851 in December.
The cheapest return price found within the last 5 days was £617 on JetBlue (6 Dec–10 Dec).

How far ahead should I book a flight from Philadelphia to London?

The price you pay for your flight from Philadelphia to London may vary depending on when you book. For the best chance of a lower fare, look to book 76 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Reviews of airlines servicing London

Read reviews from past customers who have flown with American Airlines,Iberia, andBritish Airways from Philadelphia to London. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

American Airlines

7.0

Good

12,211 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Cameron,Nov 2025

PDX - LHR

The plane was very old...had no WiFi available. The crew were not friendly nor helpful.

American Airlines

7.0

Good

12,211 reviews

American Airlines

7.0

Good

12,211 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Cameron,Nov 2025

PDX - LHR

The plane was very old...had no WiFi available. The crew were not friendly nor helpful.

Iberia

7.0

Good

3,243 reviews

American Airlines

7.0

Good

12,211 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Cameron,Nov 2025

PDX - LHR

The plane was very old...had no WiFi available. The crew were not friendly nor helpful.

British Airways

6.7

Okay

8,275 reviews

American Airlines

7.0

Good

12,211 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Cameron,Nov 2025

PDX - LHR

The plane was very old...had no WiFi available. The crew were not friendly nor helpful.

Related info for your journey

What airport do you fly from for flights from Philadelphia to London?
Located just 7.0 mi from the city center, Philadelphia is the airport most travelers will use when flying to London from Philadelphia. Booking flights from Philadelphia (PHL) to London should be relatively easy as there are 5 daily outbound flights to London from 1 airline.
How long is the flight from Philadelphia to London?
For as low as £715, JetBlue can have you in London from Philadelphia in 7h. There are 3533 mi between Philadelphia and London. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
What is the cheapest airline to fly from Philadelphia to London round-trip?
Flying on British Airways is currently your cheapest option to London, with prices starting at £514. British Airways is currently priced 32% below the average price you’ll pay for this route.
What are the most popular routes from Philadelphia to London?
The most popular route from Philadelphia to London is Philadelphia - London Heathrow. You may also consider Philadelphia - London Gatwick or Philadelphia - London City.
What are the most reliable airlines from Philadelphia to London?
Consider Malaysia Airlines (94%), American Airlines (91%) or British Airways (91%) when booking your flight. These represent the most reliable airlines when flying from Philadelphia to London.
What are the cheapest flights from Philadelphia to London?
Looking for the cheapest flight from Philadelphia to London? While on average our users pay £959, our data indicates the cheapest price to be £530. The most popular route (Philadelphia - London Heathrow), is priced around £581.
Can I find deals for flights from Philadelphia to London that include hotel bookings?
Yes. In addition to deals on Philadelphia to London flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Philadelphia to London?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Philadelphia to London.
Can I find deals for business class flights from Philadelphia to London?
Yes. Cheapflights offers flight deals from Philadelphia to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Philadelphia to London?
Currently, February is the cheapest month in which you can book a flight from Philadelphia to London (average of £552). Flying from Philadelphia to London in June is currently the most expensive (average of £1,111). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Top airline flying from Philadelphia to London

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest£514	Average£838	FlexibilityNo cancel fee	On-time70%	Search British Airways flights

Fly with Cheapflights

How does Cheapflights help users find flights from Philadelphia to London?

Cheapflights makes it easy to find Philadelphia to London flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Philadelphia to London?

Cheapflights simply makes it quick and affordable to book flights from Philadelphia to London by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Philadelphia to London with no change fees?

Certainly. Search results for flights to London from Philadelphia shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Philadelphia to London become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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Cheap flights from Philadelphia to London from £217

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/3. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Philadelphia to London

Cheapest flights from Philadelphia to LondonExplore the most affordable flight options available from Philadelphia to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 October 2026.

Explore the most affordable flight options available from Philadelphia to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 October 2026.

Best flights from Philadelphia to LondonDiscover carefully curated flight deals from Philadelphia to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 30 October 2026.

Discover carefully curated flight deals from Philadelphia to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 30 October 2026.

Direct flights from Philadelphia to LondonExplore direct flight options from Philadelphia to London based on user searches, and compare prices and availability for your desired travel dates. Data last updated 30 October 2026.

Explore direct flight options from Philadelphia to London based on user searches, and compare prices and availability for your desired travel dates. Data last updated 30 October 2026.

Last-minute flights from Philadelphia to LondonDiscover last-minute flight deals from Philadelphia to London. Data last updated 30 October 2026 and is based on user searches.

Discover last-minute flight deals from Philadelphia to London. Data last updated 30 October 2026 and is based on user searches.

One-way flights from Philadelphia to LondonSearch for one-way flight options from Philadelphia to London. Find affordable one-way fares based on user searches. Data last updated 30 October 2026.

Search for one-way flight options from Philadelphia to London. Find affordable one-way fares based on user searches. Data last updated 30 October 2026.

Find flight deals from Philadelphia to London

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Cheapflights Fare Finder

Use the filters below to find and compare flights from Philadelphia to London that are best for you.

Best time to book a flight from Philadelphia to London

Have a flexible travel schedule? Discover the best time to fly to London from Philadelphia with our price prediction graph.

Cheapflights Insights

What is the cheapest month to book a flight from Philadelphia to London?

What is the cheapest time of day to fly from PHL to LON?

Find hourly flight availability from Philadelphia to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 30 October 2026.

When flying from Philadelphia to London, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost for a return flight from Philadelphia to London?

Airfare is typical for this route at the moment.

Philadelphia to London flights typically cost between £613 and £851 in December.The cheapest return price found within the last 5 days was £617 on JetBlue (6 Dec–10 Dec).

How far ahead should I book a flight from Philadelphia to London?

The price you pay for your flight from Philadelphia to London may vary depending on when you book. For the best chance of a lower fare, look to book 76 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Reviews of airlines servicing London

Read reviews from past customers who have flown with American Airlines,Iberia, andBritish Airways from Philadelphia to London. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

What airport do you fly from for flights from Philadelphia to London?

How long is the flight from Philadelphia to London?

What is the cheapest airline to fly from Philadelphia to London round-trip?

What are the most popular routes from Philadelphia to London?

What are the most reliable airlines from Philadelphia to London?

What are the cheapest flights from Philadelphia to London?

Can I find deals for flights from Philadelphia to London that include hotel bookings?

How can I find direct flights from Philadelphia to London?

Can I find deals for business class flights from Philadelphia to London?

What is the cheapest month to book a flight from Philadelphia to London?

Travelling to a place near London?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Philadelphia to London

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to London by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to England

Book a non-stop flight to one of these other cities located in England.

Search flights from Philadelphia to London by cabin class

Find flights from Philadelphia to London, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Other flights to London

Explore flights to London departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 30 October 2026.

Philadelphia and London flights

Browse other Philadelphia and London flight options. Last updated on 30 October 2026.

Other flights from Philadelphia

Browse through other flights departing from Philadelphia. Flights are based on user searches made on Cheapflights and were last updated on 30 October 2026.

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Top airline flying from Philadelphia to London

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How does Cheapflights help users find flights from Philadelphia to London?

Why should you use Cheapflights to find cheap flight tickets from Philadelphia to London?

Can Cheapflights find flights from Philadelphia to London with no change fees?

Can Cheapflights notify me if prices for flights from Philadelphia to London become cheaper?

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Cheapest flights from Philadelphia to London
Explore the most affordable flight options available from Philadelphia to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 October 2026.

Best flights from Philadelphia to London
Discover carefully curated flight deals from Philadelphia to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 30 October 2026.

Direct flights from Philadelphia to London
Explore direct flight options from Philadelphia to London based on user searches, and compare prices and availability for your desired travel dates. Data last updated 30 October 2026.

Last-minute flights from Philadelphia to London
Discover last-minute flight deals from Philadelphia to London. Data last updated 30 October 2026 and is based on user searches.

One-way flights from Philadelphia to London
Search for one-way flight options from Philadelphia to London. Find affordable one-way fares based on user searches. Data last updated 30 October 2026.

Philadelphia to London flights typically cost between £613 and £851 in December.
The cheapest return price found within the last 5 days was £617 on JetBlue (6 Dec–10 Dec).