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$373+ Cheap flights from Philadelphia (PHL) to Heathrow (LHR)

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 1/22. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — LHR
dec 28 — jan 42
lör 12/28
lör 1/4
2 travelers, Economy
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The best prices from Philadelphia to London Heathrow are usually found in October or April, booked 56 days in advance, depart on a Monday or Tuesday and return on a Tuesday

Cheap flight deals from Philadelphia to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) to Heathrow (LHR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated december 23, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$617
(JetBlue)

One-way from

$373
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$1,029
Provider with most accurate pricing for Philadelphia-London Heathrow flight deals.
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Provider most trusted by Cheapflights users for Philadelphia-London Heathrow flights.
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From Philadelphia to London Heathrow
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One-way flight from Philadelphia to London Heathrow
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High demand for flights, 17% potential price rise
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Best time to find cheap flights, 3% potential price drop
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Average for round-trip flights in December 2024
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Find flight deals from Philadelphia to Heathrow

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 december 23, 2024.

This JetBlue Airways deal was found by Cheapflights users on 12/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lör 12/288:15 amPHL - LHR
1 stop16h 40mJetBlue
fre 1/108:25 amLHR - PHL
1 stop15h 42mJetBlue
Deal found 12/23$903
This Gurufare deal was found by Cheapflights users on 12/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lör 12/281:14 pmPHL - LHR
2 stops21h 46mScandinavian Airlines
fre 1/107:30 pmLHR - PHL
2 stops29h 30mScandinavian Airlines
Deal found 12/22$1,097
This Ovago deal was found by Cheapflights users on 12/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lör 12/285:30 pmPHL - LHR
1 stop9h 35mMultiple Airlines
fre 1/1010:00 amLHR - PHL
2 stops16h 19mMultiple Airlines
Deal found 12/23$1,218
This American Airlines deal was found by Cheapflights users on 12/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mån 12/239:15 pmPHL - LHR
Nonstop7h 05mAmerican Airlines
tis 12/317:50 amLHR - PHL
1 stop13h 40mAmerican Airlines
Deal found 12/22$1,305
This Gurufare deal was found by Cheapflights users on 12/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mån 12/236:40 pmPHL - LHR
Nonstop6h 55mBritish Airways
tis 12/3110:15 amLHR - PHL
Nonstop8h 05mBritish Airways
Deal found 12/22$1,333
This Delta deal was found by Cheapflights users on 12/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mån 12/236:05 amPHL - LHR
1 stop20h 00mDelta
tis 12/3110:00 amLHR - PHL
2 stops18h 14mDelta
Deal found 12/22$1,338
This Iberia deal was found by Cheapflights users on 12/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mån 12/236:40 pmPHL - LHR
1 stop12h 40mIberia
tis 12/3110:15 amLHR - PHL
Nonstop8h 05mIberia
Deal found 12/23$1,390
This oojo deal was found by Cheapflights users on 12/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
fre 12/276:18 pmPHL - LHR
1 stop30h 37mTAP AIR PORTUGAL
tis 1/76:30 pmLHR - PHL
2 stops29h 37mTAP AIR PORTUGAL
Deal found 12/22$1,435
This Virgin Atlantic deal was found by Cheapflights users on 12/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sön 12/295:50 pmPHL - LHR
1 stop11h 45mVirgin Atlantic
mån 1/64:10 pmLHR - PHL
1 stop13h 39mVirgin Atlantic
Deal found 12/22$1,508
This Finnair deal was found by Cheapflights users on 12/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sön 12/299:15 pmPHL - LHR
Nonstop7h 05mFinnair
mån 1/67:00 pmLHR - PHL
1 stop24h 05mFinnair
Deal found 12/22$1,545
This United Airlines deal was found by Cheapflights users on 12/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sön 12/294:25 pmPHL - LHR
2 stops47h 10mUnited Airlines
mån 1/61:30 pmLHR - PHL
2 stops33h 05mUnited Airlines
Deal found 12/22$1,565

Find flights from Philadelphia to Heathrow within your budget

Customize your flight search to find flights from Philadelphia to Heathrow that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated december 23, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

fre 3/28

10:11 am-5:55 am

1 stop15h 44m

London Heathrow

sön 4/20

8:25 am-3:08 pm

1 stop11h 43m

$622

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

ons 1/22

6:00 am-6:50 am

1 stop19h 50m

London Heathrow

ons 1/29

3:15 pm-10:24 am

2 stops48h 09m

$634

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

ons 1/22

11:20 am-9:20 am

2 stops17h 00m

London Heathrow

ons 1/29

6:40 am-12:49 am

2 stops23h 09m

$665

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

tis 2/4

6:40 pm-6:35 am

Nonstop6h 55m

London Heathrow

tis 2/11

6:30 am-4:40 pm

1 stop15h 10m

$696

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

tis 3/25

7:40 pm-6:35 am

Nonstop6h 55m

London Heathrow

ons 4/2

7:55 am-3:30 pm

1 stop12h 35m

$702

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

sön 1/12

3:30 pm-7:10 am

1 stop10h 40m

London Heathrow

tis 1/21

6:00 pm-2:50 pm

2 stops49h 50m

$713

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

tis 1/21

6:40 pm-6:35 am

Nonstop6h 55m

London Heathrow

tis 1/28

7:50 am-4:40 pm

1 stop13h 50m

$716

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

tis 1/21

3:30 pm-7:10 am

1 stop10h 40m

London Heathrow

tis 1/28

6:30 am-10:36 pm

2 stops21h 06m

$728

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

sön 1/12

11:10 am-12:40 pm

2 stops20h 30m

London Heathrow

ons 1/22

6:30 pm-7:07 pm

2 stops29h 37m

$730

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

tis 1/21

6:40 pm-6:35 am

Nonstop6h 55m

London Heathrow

tis 1/28

1:10 pm-4:20 pm

Nonstop8h 10m

$739

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/23

Showing 1-10 of 28 results
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Compare providers for flights from Philadelphia to Heathrow

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Philadelphia to Heathrow in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*1 star
business-class.comPrice Accuracy3 starsTrust Score*3 stars
GurufarePrice Accuracy3 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
KAYAKPrice Accuracy-Trust Score*1 star
SmartFaresPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Philadelphia-London Heathrow Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Philadelphia-London Heathrow Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Philadelphia-London Heathrow Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Philadelphia-London Heathrow Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Philadelphia-London Heathrow Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.
Estimated round-trip 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.

Travel insights for flights from Philadelphia to Heathrow

Get recent, data-driven insights about flights from Philadelphia to Heathrow including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a round-trip flight from Philadelphia to Heathrow. Price data was last updated on December 20, 2024.

Booking 56 days in advance of your planned departure date is, on average, the best time to get cheap flights from Philadelphia to London Heathrow Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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 $661). Flying from Philadelphia to London Heathrow Airport in June is currently the most expensive (average of $1,135). 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?

Find hourly flight availability from Philadelphia to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated december 23, 2024.

A simple way to save on the total cost of your ticket is to fly from Philadelphia to London Heathrow Airport at noon. If you’re flexible enough to do this you can expect to save up to 8% on your trip compared to booking a flight in the evening.

What is the cheapest day to fly from Philadelphia to London Heathrow Airport?

Use this chart to determine the cheapest time to fly round-trip from Philadelphia to Heathrow. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Philadelphia to London Heathrow Airport flight should consider departing on Friday at noon when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Philadelphia to London Heathrow Airport

Explore weekly flight availability from Philadelphia to Heathrow. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated december 23, 2024.

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

Rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London Heathrow Airport when rainfall is around 1.6 in.

Temperature in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature totals by month.

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 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Heathrow. Reviews last updated december 23, 2024.
Get a feel of what it's like to fly with JetBlue, British Airways and Iberia from Philadelphia to London by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,588 reviews

Boarding

8.2

Comfort

8.0

Food

7.3

Entertainment

7.9

Crew

8.6

Overall

8.0

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,588 reviews
Delta
8.0
Very good
8,588 reviews

Boarding

8.2

Comfort

8.0

Food

7.3

Entertainment

7.9

Crew

8.6

Overall

8.0

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Finnair
7.7
Good
1,285 reviews
Delta
8.0
Very good
8,588 reviews

Boarding

8.2

Comfort

8.0

Food

7.3

Entertainment

7.9

Crew

8.6

Overall

8.0

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Virgin Atlantic
7.5
Good
667 reviews
Delta
8.0
Very good
8,588 reviews

Boarding

8.2

Comfort

8.0

Food

7.3

Entertainment

7.9

Crew

8.6

Overall

8.0

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines
7.4
Good
9,020 reviews
Delta
8.0
Very good
8,588 reviews

Boarding

8.2

Comfort

8.0

Food

7.3

Entertainment

7.9

Crew

8.6

Overall

8.0

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

JetBlue
7.4
Good
3,263 reviews
Delta
8.0
Very good
8,588 reviews

Boarding

8.2

Comfort

8.0

Food

7.3

Entertainment

7.9

Crew

8.6

Overall

8.0

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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?

    Located just 7.0 mi from the city center, Philadelphia is the airport most travelers will use when flying to London Heathrow from Philadelphia. Booking flights from Philadelphia (PHL) to London Heathrow should be relatively easy as there are 10 daily outbound flights to London Heathrow from 12 different airlines.

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

    According to our current data, JetBlue ($617), Scandinavian Airlines ($665), and British Airways ($696) offers the cheapest pricing from Philadelphia to London Heathrow Airport. You may be able to fly from Philadelphia to London Heathrow Airport for 28% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Philadelphia to London Heathrow Airport one-way?

    The cheapest airline one-way is Scandinavian Airlines, with whom users have recently found tickets for as low as $374. However, be on the lookout for offers from JetBlue and Air Canada, as they are both options that can get you from Philadelphia to London Heathrow Airport for a low price.

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

    Consider Malaysia Airlines (83%), American Airlines (82%) or Finnair (82%) 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?

    Looking for the cheapest flight from Philadelphia to London Heathrow Airport? While on average our users pay $1,841, our data indicates the cheapest price to be $402. The most popular route (Philadelphia - London Heathrow), is priced around $576.

  • 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 vacation 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 $661). Flying from Philadelphia to London Heathrow Airport in June is currently the most expensive (average of $1,135). 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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Alternative routes for Philadelphia to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Philadelphia to Heathrow

Discover the top 10 airlines that operate flights from Philadelphia to Heathrow. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated december 23, 2024.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest$514Average$675FlexibilityNo cancel feeOn-time72%
LufthansaCheapest$525Average$987FlexibilityNo cancel feeOn-time76%
Air CanadaCheapest$529Average$969FlexibilityNo cancel feeOn-time67%
JetBlueCheapest$552Average$794FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$609Average$896FlexibilityNo cancel feeOn-time71%
IberiaCheapest$618Average$805FlexibilityNo cancel feeOn-time77%
DeltaCheapest$625Average$1,049FlexibilityNo cancel feeOn-timeN/A
FinnairCheapest$626Average$904FlexibilityNo cancel feeOn-time76%
Aer LingusCheapest$629Average$870FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$636Average$866FlexibilityNo cancel feeOn-time70%
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