What’s the fastest stopover option from Philadelphia to London Heathrow Airport?

Flights via Dublin (DUB) have the shortest average one-way travel time for one-stop routes: 9h 50m.

What’s the top stopover airport for flights from Philadelphia to London Heathrow Airport?

Boston (BOS) – chosen by Cheapflights users on 80% of one-stop itineraries from Philadelphia to London Heathrow Airport on Cheapflights.

Which airport typically offers the quickest stopover for flights from Philadelphia to London Heathrow Airport?

Flights via Dublin (DUB) offer the fastest connection on this route, with an average stopover time of 1h 43m.

What’s the cheapest stopover airport for flights from Philadelphia to London Heathrow Airport?

Dublin (DUB) is the most affordable one-stop option, with an average return flight price of £452.

How long is the flight from Philadelphia to London Heathrow Airport?

For as low as £539, Scandinavian Airlines can have you in London Heathrow Airport from Philadelphia in 7h 25m. Philadelphia and London Heathrow Airport are separated by a distance of 3533 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

What are the cheapest airlines flying from Philadelphia to London Heathrow Airport round-trip?

Our cheapest airline available from Philadelphia to London Heathrow Airport is British Airways. Our recent data shows that you can find tickets from as low as £378 on this airline. Additional options worth looking into are Aer Lingus and JetBlue, starting at £385 and £420 round-trip. Users have found that British Airways is 37% cheaper than the other options available to this destination.

Weekly flight availability from Philadelphia to London Heathrow Airport

The most flights from PHL to LHR are scheduled on a Monday (10 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (5 on average).

In terms of precipitation, rainfall in London Heathrow Airport 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 Heathrow Airport when rainfall is around 40.0 mm.

If weather is an important factor for your trip to London Heathrow Airport, 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 cheapest flights from Philadelphia to London Heathrow Airport?

The cheapest flight price from Philadelphia to London Heathrow Airport is £273. On average you can expect to pay £502. The most popular route, (Philadelphia - London Heathrow), can usually be booked for £483.

What are the most reliable airlines from Philadelphia to London Heathrow Airport?

Consider Aer Lingus (82%), American Airlines (76%) or Finnair (76%) when booking your flight. These represent the most reliable airlines when flying from Philadelphia to London Heathrow Airport.

What are the most popular airlines that fly from Philadelphia to London Heathrow Airport?

When booking a flight from Philadelphia to London Heathrow Airport, you may want to consider flying on British Airways, American Airlines or JetBlue as they are the most popular for this route.

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

Philadelphia (PHL) is the airport you will fly out of if you book a flight from Philadelphia to London Heathrow. You should not have trouble finding flights to London Heathrow from Philadelphia; the airport handles an average of 9 outbound flights to London Heathrow per day. You should also have plenty of airline options to choose from since 4 airlines have flights from the Philadelphia airport to London Heathrow. It is only a 7.0 mi journey to Philadelphia (PHL) from Philadelphia’s city center.

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

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

How can I find direct flights from Philadelphia to Heathrow?

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

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

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

£218+ Flights from Philadelphia to London Heathrow Airport

Cheapflights Tip: The best prices from Philadelphia to London Heathrow are usually found in September or October, booked 14 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

Cheap flight deals from Philadelphia to Heathrow

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

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One-way

Cheapest flights from Philadelphia to Heathrow
Explore the most affordable flight options available from Philadelphia to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 February 2026.

Thu 26/315:30

PHL

LHR

1 stop11h 40m

Air Canada

Mon 30/308:30

LHR

PHL

1 stop12h 14m

Air Canada

Deal found 8/2£442

Mon 2/306:00

PHL

LHR

1 stop19h 55m

JetBlue

Tue 10/309:20

LHR

PHL

1 stop17h 16m

JetBlue

Deal found 9/2£470

Tue 24/215:02

PHL

LHR

1 stop10h 53m

JetBlue

Mon 2/309:20

LHR

PHL

1 stop18h 16m

JetBlue

Deal found 10/2£483

Thu 5/306:00

PHL

LHR

1 stop19h 55m

JetBlue

Mon 9/309:20

LHR

PHL

1 stop17h 16m

JetBlue

Deal found 7/2£484

Wed 4/306:00

PHL

LHR

1 stop19h 55m

JetBlue

Mon 9/309:20

LHR

PHL

1 stop17h 16m

JetBlue

Deal found 10/2£485

Tue 17/306:00

PHL

LHR

1 stop20h 55m

JetBlue

Wed 25/309:20

LHR

PHL

1 stop27h 44m

JetBlue

Deal found 9/2£485

Mon 16/306:00

PHL

LHR

1 stop20h 55m

JetBlue

Wed 25/309:20

LHR

PHL

1 stop17h 11m

JetBlue

Deal found 10/2£487

Mon 23/309:54

PHL

LHR

1 stop17h 01m

JetBlue

Tue 7/408:40

LHR

PHL

1 stop13h 50m

JetBlue

Deal found 10/2£489

Tue 17/215:00

PHL

LHR

1 stop10h 55m

JetBlue

Sat 28/209:20

LHR

PHL

1 stop18h 16m

JetBlue

Deal found 7/2£494

Sat 14/214:55

PHL

LHR

1 stop11h 00m

JetBlue

Wed 18/209:20

LHR

PHL

1 stop17h 47m

JetBlue

Deal found 9/2£495

Wed 1/406:00

PHL

LHR

1 stop19h 30m

JetBlue

Tue 7/408:40

LHR

PHL

1 stop13h 50m

JetBlue

Deal found 9/2£496

Wed 25/306:00

PHL

LHR

1 stop20h 55m

JetBlue

Wed 8/408:40

LHR

PHL

1 stop19h 31m

JetBlue

Deal found 9/2£496

Find flight deals from Philadelphia to Heathrow

Round-trip from	£442
One-way from	£218
Popular in	June
Cheapest in	September
Average price	£526
Good round-trip deal	£572 or less
Good one-way deal	£277 or less

Air Canada
26/3-30/3
2 total stops
23h 54m total
Philadelphia to London

Search Deals

3/3
3 total stops
25h 45m total
Philadelphia to London

Search Deals

Highest demand for flights based on searches. 17% potential increase in price (£92 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease (£20 potential savings vs. average return price).

Search Deals

Average for round-trip flights in February 2026

Search Deals

Price to beat on a round-trip flight from Philadelphia to London Heathrow.

Search Deals

Price to beat on a one-way flight from Philadelphia to London Heathrow.

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Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

Tue 24/3

11:16-16:25

3 stops25h 09m

London Heathrow

Tue 31/3

10:20-21:23

2 stops16h 03m

£521

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

Wed 4/3

15:30-07:10

1 stop10h 40m

London Heathrow

Thu 19/3

13:25-00:16

2 stops38h 51m

£534

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

Sun 12/4

19:25-07:50

Nonstop7h 25m

London Heathrow

Mon 20/4

20:35-13:50

1 stop22h 15m

£539

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

Wed 1/4

17:33-09:15

1 stop10h 42m

London Heathrow

Wed 8/4

06:30-16:33

2 stops15h 03m

£540

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

Mon 30/3

12:26-10:20

2 stops16h 54m

London Heathrow

Tue 7/4

06:30-16:53

2 stops15h 23m

£543

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

Tue 3/3

11:09-16:25

3 stops24h 16m

London Heathrow

Tue 10/3

06:40-21:23

2 stops18h 43m

£545

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

Wed 15/4

19:25-07:50

Nonstop7h 25m

London Heathrow

Mon 20/4

20:35-13:50

1 stop22h 15m

£557

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

Fri 10/4

09:15-21:00

2 stops54h 45m

London Heathrow

Mon 20/4

15:30-16:05

1 stop29h 35m

£560

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

Fri 20/3

15:30-07:10

1 stop11h 40m

London Heathrow

Thu 26/3

06:30-17:05

1 stop14h 35m

£565

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

Thu 5/3

09:41-08:45

1 stop18h 04m

London Heathrow

Wed 11/3

11:45-23:00

2 stops15h 15m

£566

Flights are sorted by cheapest return flights first.

Deals found on 6/2

Showing 1-10 of 23 results

Best time to book a flight from Philadelphia to Heathrow

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

PHL-LHR

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 Heathrow Airport

Prices

Airlines

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

The best time to book flights from Philadelphia to London Heathrow Airport is 14 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, November is the cheapest month in which you can book a flight from Philadelphia to London Heathrow Airport (average of £287). Flying from Philadelphia to London Heathrow Airport in June is currently the most expensive (average of £423). 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 LHR?

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

Reviews of airlines servicing Heathrow

Get a feel of what it's like to fly with American Airlines, JetBlue, andAer Lingus from Philadelphia to London Heathrow Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

American Airlines

7.2

Good

11,261 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Susie,Jan 2026

CLT - TPA

This flight was delayed 3 or 4 times. We had boarded the plane, sat on plane for a good 30 minutes, then we had to board the aircraft, walk to a different gate, wait and then board another aircraft. We arrived in Tampa 4 hours later than the original booking. I feel there should have been some sort of compensation especially for the advantage members.

American Airlines

7.2

Good

11,261 reviews

American Airlines

7.2

Good

11,261 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Susie,Jan 2026

CLT - TPA

JetBlue

7.2

Good

2,893 reviews

American Airlines

7.2

Good

11,261 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Susie,Jan 2026

CLT - TPA

Aer Lingus

7.2

Good

1,447 reviews

American Airlines

7.2

Good

11,261 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Susie,Jan 2026

CLT - TPA

British Airways

6.7

Okay

7,724 reviews

American Airlines

7.2

Good

11,261 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Susie,Jan 2026

CLT - TPA

Related info for your journey

What airport do you fly from for flights from Philadelphia to London Heathrow?
Philadelphia (PHL) is the airport you will fly out of if you book a flight from Philadelphia to London Heathrow. You should not have trouble finding flights to London Heathrow from Philadelphia; the airport handles an average of 9 outbound flights to London Heathrow per day. You should also have plenty of airline options to choose from since 4 airlines have flights from the Philadelphia airport to London Heathrow. It is only a 7.0 mi journey to Philadelphia (PHL) from Philadelphia’s city center.
How long is the flight from Philadelphia to London Heathrow Airport?
For as low as £539, Scandinavian Airlines can have you in London Heathrow Airport from Philadelphia in 7h 25m. Philadelphia and London Heathrow Airport are separated by a distance of 3533 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
What are the cheapest airlines flying from Philadelphia to London Heathrow Airport round-trip?
Our cheapest airline available from Philadelphia to London Heathrow Airport is British Airways. Our recent data shows that you can find tickets from as low as £378 on this airline. Additional options worth looking into are Aer Lingus and JetBlue, starting at £385 and £420 round-trip. Users have found that British Airways is 37% cheaper than the other options available to this destination.
What are the most reliable airlines from Philadelphia to London Heathrow Airport?
Consider Aer Lingus (82%), American Airlines (76%) or Finnair (76%) when booking your flight. These represent the most reliable airlines when flying from Philadelphia to London Heathrow Airport.
What are the cheapest flights from Philadelphia to London Heathrow Airport?
The cheapest flight price from Philadelphia to London Heathrow Airport is £273. On average you can expect to pay £502. The most popular route, (Philadelphia - London Heathrow), can usually be booked for £483.
Can I find deals for flights from Philadelphia to Heathrow that include hotel bookings?
Yes. In addition to deals on Philadelphia to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Philadelphia to Heathrow?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Philadelphia to Heathrow.
Can I find deals for business class flights from Philadelphia to Heathrow?
Yes. Cheapflights offers flight deals from Philadelphia to Heathrow 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 Heathrow Airport?
Currently, November is the cheapest month in which you can book a flight from Philadelphia to London Heathrow Airport (average of £287). Flying from Philadelphia to London Heathrow Airport in June is currently the most expensive (average of £423). 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 4 airlines flying from Philadelphia to Heathrow

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest£378	Average£546	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Aer Lingus	Cheapest£385	Average£510	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights
JetBlue	Cheapest£420	Average£507	FlexibilityNo cancel fee	On-time62%	Search JetBlue flights
American Airlines	Cheapest£501	Average£638	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights

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

Cheapflights makes it easy to find Philadelphia to Heathrow 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 Heathrow?

Millions of users choose and trust Cheapflights to book the best flight deals from Philadelphia to Heathrow for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Need flexible booking options for your flight to Heathrow from Philadelphia? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes! Start tracking prices for Philadelphia to Heathrow flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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Cheap flights from Philadelphia to London Heathrow Airport from £218

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

Cheap flight deals from Philadelphia to Heathrow

Cheapest flights from Philadelphia to HeathrowExplore the most affordable flight options available from Philadelphia to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 February 2026.

Explore the most affordable flight options available from Philadelphia to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 February 2026.

Best flights from Philadelphia to HeathrowDiscover carefully curated flight deals from Philadelphia to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 10 February 2026.

Discover carefully curated flight deals from Philadelphia to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 10 February 2026.

Direct flights from Philadelphia to HeathrowExplore direct flight options from Philadelphia to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 10 February 2026.

Explore direct flight options from Philadelphia to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 10 February 2026.

Last-minute flights from Philadelphia to HeathrowDiscover last-minute flight deals from Philadelphia to Heathrow. Data last updated 10 February 2026 and is based on user searches.

Discover last-minute flight deals from Philadelphia to Heathrow. Data last updated 10 February 2026 and is based on user searches.

One-way flights from Philadelphia to HeathrowSearch for one-way flight options from Philadelphia to Heathrow. Find affordable one-way fares based on user searches. Data last updated 10 February 2026.

Search for one-way flight options from Philadelphia to Heathrow. Find affordable one-way fares based on user searches. Data last updated 10 February 2026.

Find flight deals from Philadelphia to Heathrow

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

Best time to book a flight from Philadelphia to Heathrow

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

Cheapflights Insights

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

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

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

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

Weekly flight availability from Philadelphia to London Heathrow Airport

What’s the top stopover airport for flights from Philadelphia to London Heathrow Airport?

What’s the cheapest stopover airport for flights from Philadelphia to London Heathrow Airport?

What’s the fastest stopover option from Philadelphia to London Heathrow Airport?

Which airport typically offers the quickest stopover for flights from Philadelphia to London Heathrow Airport?

Reviews of airlines servicing Heathrow

Get a feel of what it's like to fly with American Airlines, JetBlue, andAer Lingus from Philadelphia to London Heathrow Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Philadelphia to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

How long is the flight from Philadelphia to London Heathrow Airport?

What are the cheapest airlines flying from Philadelphia to London Heathrow Airport round-trip?

What are the most reliable airlines from Philadelphia to London Heathrow Airport?

What are the cheapest flights from Philadelphia to London Heathrow Airport?

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

How can I find direct flights from Philadelphia to Heathrow?

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

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

Travelling to a place near London Heathrow Airport?

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Alternative routes for Philadelphia to Heathrow

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Complete your trip

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

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Search flights from Philadelphia to Heathrow by cabin class

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Other flights to Heathrow

Explore flights to Heathrow departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 10 February 2026.

Philadelphia and Heathrow flights

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Top 4 airlines flying from Philadelphia to Heathrow

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

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

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Cheapest flights from Philadelphia to Heathrow
Explore the most affordable flight options available from Philadelphia to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 February 2026.

Best flights from Philadelphia to Heathrow
Discover carefully curated flight deals from Philadelphia to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 10 February 2026.

Direct flights from Philadelphia to Heathrow
Explore direct flight options from Philadelphia to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 10 February 2026.

Last-minute flights from Philadelphia to Heathrow
Discover last-minute flight deals from Philadelphia to Heathrow. Data last updated 10 February 2026 and is based on user searches.

One-way flights from Philadelphia to Heathrow
Search for one-way flight options from Philadelphia to Heathrow. Find affordable one-way fares based on user searches. Data last updated 10 February 2026.