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$545+ Cheap flights from Heathrow (LHR) to Philadelphia (PHL)

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 3/26. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — PHL
dic. 23 — dic. 301
lun. 12/23
lun. 12/30
1 adult, Economy
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The best prices from London Heathrow to Philadelphia are usually found in February or January, booked 86 days in advance, depart on a Tuesday or Monday and return on a Monday

Cheap flight deals from Heathrow to Philadelphia

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Philadelphia (PHL). 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 diciembre 18, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$668
(TravelUp)

One-way from

$545
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$877
Provider with most accurate pricing for London Heathrow-Philadelphia flight deals.
Search Deals
Provider most trusted by Cheapflights users for London Heathrow-Philadelphia flights.
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From London Heathrow to Philadelphia
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One-way flight from London Heathrow to Philadelphia
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High demand for flights, 13% potential price rise
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Best time to find cheap flights, 2% potential price drop
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Average for round-trip flights in December 2024
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Find flight deals from Heathrow to Philadelphia

Cheapest flights from Heathrow to Philadelphia
Explore the most affordable flight options available from Heathrow to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on diciembre 18, 2024.

This JetBlue deal was found by Cheapflights users on 12/17. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/258:25 amLHR - PHL
1 stop14h 08mJetBlue
jue. 1/911:10 amPHL - LHR
1 stop13h 45mJetBlue
Deal found 12/17$727
This Priceline deal was found by Cheapflights users on 12/17. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/318:30 amLHR - PHL
1 stop12h 30mMultiple Airlines
mar. 1/73:30 pmPHL - LHR
2 stops48h 05mMultiple Airlines
Deal found 12/17$730
This United Airlines deal was found by Cheapflights users on 12/17. 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.
mar. 12/312:30 pmLHR - PHL
1 stop13h 06mUnited Airlines
mar. 1/75:10 pmPHL - LHR
1 stop33h 45mUnited Airlines
Deal found 12/17$740
This The Travel House deal was found by Cheapflights users on 12/17. 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 The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/251:30 pmLHR - PHL
1 stop31h 30mLufthansa
sáb. 6/214:50 pmPHL - LHR
1 stop32h 45mLufthansa
Deal found 12/17$744
This Travelocity deal was found by Cheapflights users on 12/17. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/316:45 amLHR - PHL
1 stop13h 45mBritish Airways
mar. 1/76:35 pmPHL - LHR
1 stop31h 15mBritish Airways
Deal found 12/17$749
This ChecknFly deal was found by Cheapflights users on 12/17. 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 ChecknFly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/306:30 amLHR - PHL
1 stop14h 05mFinnair
dom. 1/126:40 pmPHL - LHR
Nonstop6h 55mFinnair
Deal found 12/17$879
This ChecknFly deal was found by Cheapflights users on 12/17. 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 ChecknFly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/307:35 amLHR - PHL
1 stop13h 00mIberia
dom. 1/129:21 pmPHL - LHR
Nonstop6h 59mIberia
Deal found 12/17$889
This American Airlines deal was found by Cheapflights users on 12/17. 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.
mar. 12/248:20 amLHR - PHL
1 stop12h 10mAmerican Airlines
jue. 1/94:04 pmPHL - LHR
1 stop10h 46mAmerican Airlines
Deal found 12/17$954
This Justfly.com deal was found by Cheapflights users on 12/17. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/253:00 pmLHR - PHL
1 stop28h 50mAir Canada
mié. 1/83:30 pmPHL - LHR
2 stops24h 05mAir Canada
Deal found 12/17$966
This The Travel House deal was found by Cheapflights users on 12/18. 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 The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/2611:30 amLHR - PHL
2 stops14h 58mAir France
lun. 12/305:28 pmPHL - LHR
1 stop32h 22mAir France
Deal found 12/18$1,008
This Brussels Airlines deal was found by Cheapflights users on 12/17. 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 Brussels Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/3111:05 amLHR - PHL
2 stops33h 55mBrussels Airlines
mar. 1/75:35 pmPHL - LHR
2 stops22h 15mBrussels Airlines
Deal found 12/17$1,015
This Austrian Airlines deal was found by Cheapflights users on 12/17. 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 Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/277:25 pmLHR - PHL
2 stops49h 35mAustrian Airlines
dom. 6/2210:35 amPHL - LHR
2 stops30h 05mAustrian Airlines
Deal found 12/17$1,103

Find flights from Heathrow to Philadelphia within your budget

Customize your flight search to find flights from Heathrow to Philadelphia 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 diciembre 18, 2024.

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Fly to

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Route

Depart

Return

Price

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

lun. 2/17

10:15 am-1:20 pm

Nonstop8h 05m

Philadelphia

mié. 2/26

6:40 pm-6:35 am

Nonstop6h 55m

$668

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

lun. 4/28

8:30 am-4:00 pm

1 stop12h 30m

Philadelphia

mar. 5/6

4:50 pm-9:35 am

1 stop11h 45m

$669

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

mar. 4/29

9:30 am-4:00 pm

1 stop11h 30m

Philadelphia

lun. 5/5

5:35 pm-9:40 am

1 stop11h 05m

$670

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

lun. 1/13

8:25 am-7:07 pm

1 stop15h 42m

Philadelphia

lun. 1/20

11:10 am-5:55 am

1 stop13h 45m

$673

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

lun. 1/13

7:50 am-4:40 pm

1 stop13h 50m

Philadelphia

lun. 1/20

9:21 pm-9:20 am

Nonstop6h 59m

$674

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

jue. 1/16

7:30 am-4:00 pm

1 stop13h 30m

Philadelphia

jue. 1/23

2:46 pm-8:50 pm

2 stops25h 04m

$679

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

dom. 1/19

1:10 pm-4:20 pm

Nonstop8h 10m

Philadelphia

dom. 1/26

10:35 am-8:40 am

1 stop17h 05m

$684

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

lun. 1/20

10:00 am-11:20 pm

2 stops18h 20m

Philadelphia

lun. 1/27

1:00 pm-7:55 am

2 stops13h 55m

$692

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

lun. 3/31

6:50 am-2:46 pm

2 stops12h 56m

Philadelphia

lun. 4/14

3:30 pm-10:00 am

1 stop13h 30m

$699

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

mié. 2/12

10:15 am-1:30 pm

Nonstop8h 15m

Philadelphia

mar. 2/18

4:05 pm-7:50 am

1 stop10h 45m

$712

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 24 results
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Compare providers for flights from Heathrow to Philadelphia

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 Heathrow to Philadelphia in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*1 star
KAYAKPrice Accuracy1 starTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*2 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
oojoPrice Accuracy3 starsTrust Score*3 stars
CombigoPrice Accuracy3 starsTrust Score*3 stars
Thrive TravelPrice Accuracy3 starsTrust 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 London Heathrow Airport-Philadelphia flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on London Heathrow Airport-Philadelphia flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from London Heathrow Airport-Philadelphia flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on London Heathrow Airport-Philadelphia 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 London Heathrow Airport-Philadelphia 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 Heathrow to Philadelphia

Have a flexible travel schedule? Discover the best time to fly to Philadelphia from Heathrow 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 Heathrow to Philadelphia

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

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

Use this chart to determine the optimal time to book a round-trip flight from Heathrow to Philadelphia. Price data was last updated on December 13, 2024.

The best time to book flights from London Heathrow Airport to Philadelphia is 73 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 London Heathrow Airport to Philadelphia?

Currently, September is the cheapest month in which you can book a flight from London Heathrow Airport to Philadelphia (average of $234). Flying from London Heathrow Airport to Philadelphia in March is currently the most expensive (average of $283). 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 LHR to PHL?

Find hourly flight availability from Heathrow to Philadelphia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated diciembre 18, 2024.

When flying from London Heathrow Airport to Philadelphia, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 39% versus a flight at noon.

Weekly flight availability from London Heathrow Airport to Philadelphia

Explore weekly flight availability from Heathrow to Philadelphia. 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 diciembre 18, 2024.

The most flights from LHR to PHL 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).

Rainfall in Philadelphia by month

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

In terms of precipitation, rainfall in Philadelphia ranges from 2.7 - 4.4 inches per month. July is typically the wettest month, when rainfall can reach 4.4 in. February is typically the driest time to visit Philadelphia when rainfall is around 2.7 in.

Temperature in Philadelphia by month

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

If weather is an important factor for your trip to Philadelphia, 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 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 33.8 F).

Reviews of airlines servicing Philadelphia

Get insights into the airlines that provide service to Philadelphia. 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 Philadelphia. Reviews last updated diciembre 18, 2024.
To help decide which airline to fly from London to Philadelphia, see what other customers have to say about British Airways, United Airlines and Lufthansa. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,604 reviews

Entertainment

7.9

Comfort

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.6

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta
8.0
Very good
8,604 reviews
Delta
8.0
Very good
8,604 reviews

Entertainment

7.9

Comfort

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.6

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Finnair
7.7
Good
1,285 reviews
Delta
8.0
Very good
8,604 reviews

Entertainment

7.9

Comfort

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.6

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

SWISS
7.6
Good
1,606 reviews
Delta
8.0
Very good
8,604 reviews

Entertainment

7.9

Comfort

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.6

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines
7.4
Good
9,055 reviews
Delta
8.0
Very good
8,604 reviews

Entertainment

7.9

Comfort

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.6

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

JetBlue
7.4
Good
3,279 reviews
Delta
8.0
Very good
8,604 reviews

Entertainment

7.9

Comfort

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.6

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Philadelphia. 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 into for flights to Philadelphia from London Heathrow?

    Most people fly into Philadelphia (PHL) if they book a flight to Philadelphia from London Heathrow. On average, Philadelphia has 7 inbound flights from London Heathrow per day from 5 airlines. Philadelphia is conveniently located just 7.0 mi from Philadelphia’s city center.

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

    Flying on British Airways is currently your cheapest option to Philadelphia, with prices starting at $668. Additional round-trip tickets that might be worth considering are offered by United Airlines and Lufthansa, with the lowest prices starting at $669 and $670, respectively. British Airways is currently priced 11% below the average price you’ll pay for this route.

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

    To fly one-way, consider booking your trip with Aer Lingus, which is currently one of the cheapest options available, starting at $546. WestJet flights start at $606 while deals on Iberia start at $624 one-way.

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

    Before booking your flight to Philadelphia from London Heathrow Airport, check out the most reliable airlines to get you to your destination on time: Malaysia Airlines (79%), American Airlines (79%), Finnair( 79%).

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

    Looking for the cheapest flight from London Heathrow Airport to Philadelphia? While on average our users pay $1,394, our data indicates the cheapest price to be $639. The most popular route (London Heathrow - Philadelphia), is priced around $546.

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

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

  • How can I find direct flights from Heathrow to Philadelphia?

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

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

    Yes. Cheapflights offers flight deals from Heathrow to Philadelphia 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 London Heathrow Airport to Philadelphia?

    Currently, September is the cheapest month in which you can book a flight from London Heathrow Airport to Philadelphia (average of $234). Flying from London Heathrow Airport to Philadelphia in March is currently the most expensive (average of $283). 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.

See more FAQs

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Alternative routes for Heathrow to Philadelphia

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Heathrow to Philadelphia

Discover the top 5 airlines that operate flights from Heathrow to Philadelphia. 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 diciembre 18, 2024.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest$589Average$859FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$592Average$744FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$595Average$769FlexibilityNo cancel feeOn-time70%
Aer LingusCheapest$605Average$781FlexibilityNo cancel feeOn-timeN/A
FinnairCheapest$643Average$943FlexibilityNo cancel feeOn-time76%
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