Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from London Heathrow Airport to Philadelphia from £409

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 18/2. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — PHL
22 Dec — 29 Dec1
1 adult

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 Sunday

Find flights from Heathrow to Philadelphia within your budget

Customise 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 858,174 searches. Data last updated 17 December 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Wed 29/1

07:40-22:36

2 stops19h 56m

Philadelphia

Sun 4/5

16:50-06:35

2 stops32h 45m

£528

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Tue 29/4

09:30-16:00

1 stop11h 30m

Philadelphia

Wed 7/5

17:35-09:40

1 stop11h 05m

£529

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Mon 10/2

10:15-13:30

Nonstop8h 15m

Philadelphia

Mon 24/2

21:16-09:20

Nonstop7h 04m

£531

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Mon 13/1

08:25-19:07

1 stop15h 42m

Philadelphia

Mon 20/1

11:10-05:55

1 stop13h 45m

£532

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Mon 13/1

07:50-16:40

1 stop13h 50m

Philadelphia

Mon 20/1

21:21-09:20

Nonstop6h 59m

£532

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Mon 20/1

16:30-09:40

1 stop22h 10m

Philadelphia

Fri 24/1

18:40-06:35

Nonstop6h 55m

£533

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Mon 13/1

18:00-14:50

2 stops25h 50m

Philadelphia

Mon 20/1

15:30-11:50

2 stops15h 20m

£534

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Mon 13/1

19:30-22:16

2 stops31h 46m

Philadelphia

Mon 20/1

06:00-18:30

2 stops31h 30m

£543

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Mon 13/1

06:30-17:00

2 stops15h 30m

Philadelphia

Mon 20/1

13:00-06:50

1 stop12h 50m

£544

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Mon 28/4

09:45-12:30

Nonstop7h 45m

Philadelphia

Mon 5/5

18:30-06:40

Nonstop7h 10m

£547

Flights are sorted by cheapest return flights first.

Deals found on 15/12

Showing 1-10 of 21 results
1
2
3

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 17 December 2024.

Round-trip from

£528

One-way from

£409

Popular in

July

Cheapest in

February

Average price

£693
United Airlines
  • United Airlines
  • 29/1-4/5
  • 4 total stops
  • 52h 41m total
  • London to Philadelphia
Search Deals
18/2
  • 18/2
  • 3 total stops
  • 30h 21m total
  • London to Philadelphia
Search Deals
High demand for flights, 13% potential price rise
Search Deals
Best time to find cheap flights, 2% potential price drop
Search Deals
Average for round-trip flights in December 2024
Search Deals

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 17 December 2024.

Mon 30/1214:30LHR - PHL
1 stop30h 15mLufthansa
Sun 12/117:10PHL - LHR
1 stop33h 45mLufthansa
Deal found 16/12£550
Mon 30/1220:05LHR - PHL
2 stops24h 55mMultiple Airlines
Sun 12/116:25PHL - LHR
2 stops23h 10mMultiple Airlines
Deal found 16/12£563
Mon 30/1207:35LHR - PHL
1 stop13h 00mIberia
Sun 12/118:40PHL - LHR
Nonstop6h 55mIberia
Deal found 16/12£578
Wed 25/1208:25LHR - PHL
1 stop14h 08mJetBlue
Mon 30/1208:15PHL - LHR
1 stop16h 40mJetBlue
Deal found 16/12£597
Sun 29/1211:10LHR - PHL
1 stop33h 35mAir Canada
Sun 5/115:30PHL - LHR
2 stops48h 05mAir Canada
Deal found 15/12£663
Tue 24/1215:20LHR - PHL
1 stop21h 12mFinnair
Tue 31/1215:39PHL - LHR
1 stop13h 36mFinnair
Deal found 16/12£682
Mon 30/1214:30LHR - PHL
1 stop30h 15mUnited Airlines
Mon 6/118:50PHL - LHR
1 stop32h 05mUnited Airlines
Deal found 16/12£761
Tue 24/1211:45LHR - PHL
2 stops16h 29mDelta
Mon 30/1207:10PHL - LHR
1 stop19h 45mDelta
Deal found 16/12£811
Mon 23/1217:20LHR - PHL
1 stop27h 40mBritish Airways
Mon 30/1221:15PHL - LHR
Nonstop7h 05mBritish Airways
Deal found 16/12£830
Mon 23/1220:05LHR - PHL
2 stops24h 55mSWISS
Tue 31/1217:35PHL - LHR
2 stops14h 25mSWISS
Deal found 16/12£871
Mon 23/1217:50LHR - PHL
2 stops27h 10mBrussels Airlines
Mon 30/1215:00PHL - LHR
3 stops21h 05mBrussels Airlines
Deal found 16/12£897
Sat 21/1211:45LHR - PHL
1 stop13h 10mAmerican Airlines
Thu 26/1221:15PHL - LHR
Nonstop7h 05mAmerican Airlines
Deal found 16/12£1,109

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 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.

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 return flight from Heathrow to Philadelphia. Price data was last updated on 13 December 2024.

To ensure you get the cheapest price possible for a flight from London Heathrow Airport to Philadelphia, you should look to book at least 73 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, March is the cheapest month in which you can book a flight from London Heathrow Airport to Philadelphia (average of £648). Flying from London Heathrow Airport to Philadelphia in July is currently the most expensive (average of £783). 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 17 December 2024.

A simple way to save on the total cost of your ticket is to fly from London Heathrow Airport to Philadelphia in the afternoon. If you’re flexible enough to do this you can expect to save up to 13% on your trip compared to booking a flight in the morning.

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

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

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

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 17 December 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 69.0 - 112.0 inches per month. July is typically the wettest month, when rainfall can reach 112.0 mm. February is typically the driest time to visit Philadelphia when rainfall is around 69.0 mm.

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 26.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 1.0 C).

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 17 December 2024.
Read reviews from past customers who have flown Lufthansa, Iberia and JetBlue from London to Philadelphia. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
8,615 reviews
Check prices

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.9

Overall

8.0

Comfort

7.9

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
8,615 reviews
Delta
8.0
Very Good
8,615 reviews
Check prices

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.9

Overall

8.0

Comfort

7.9

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
1,287 reviews
Delta
8.0
Very Good
8,615 reviews
Check prices

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.9

Overall

8.0

Comfort

7.9

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
1,607 reviews
Delta
8.0
Very Good
8,615 reviews
Check prices

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.9

Overall

8.0

Comfort

7.9

Reviews

1 / 10

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

Virgin Atlantic
7.5
Good
667 reviews
Delta
8.0
Very Good
8,615 reviews
Check prices

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.9

Overall

8.0

Comfort

7.9

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
9,070 reviews
Delta
8.0
Very Good
8,615 reviews
Check prices

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.9

Overall

8.0

Comfort

7.9

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 9 inbound flights from London Heathrow per day from 12 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?

    Our cheapest airline available from London Heathrow Airport to Philadelphia is United Airlines. Our recent data shows that you can find tickets from as low as £528 on this airline. Additional options worth looking into are Lufthansa and Iberia, starting at £529 and £531 round-trip. United Airlines 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?

    The cheapest airline one-way is Aer Lingus, with whom users have recently found tickets for as low as £424. However, be on the lookout for offers from Virgin Atlantic and Iberia, as they are both options that can get you from London Heathrow Airport to Philadelphia for a low price.

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

    Consider Malaysia Airlines (79%), American Airlines (79%) or Finnair (79%) when booking your flight. These represent the most reliable airlines when flying from London Heathrow Airport to Philadelphia.

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

    The cheapest flight price from London Heathrow Airport to Philadelphia is £531. On average you can expect to pay £963. The most popular route, (London Heathrow - Philadelphia), can usually be booked for £431.

  • 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 holiday 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, March is the cheapest month in which you can book a flight from London Heathrow Airport to Philadelphia (average of £648). Flying from London Heathrow Airport to Philadelphia in July is currently the most expensive (average of £783). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly from Heathrow to Philadelphia on these airlines

Choose from the following airlines for your flight from Heathrow to Philadelphia. Flights are based on user searches made on Cheapflights and were last updated on 17 December 2024.
British Airways flights from London Heathrow to Philadelphia
Finnair flights from London Heathrow to Philadelphia
Iberia flights from London Heathrow to Philadelphia

Top 10 airlines flying from Heathrow to Philadelphia

Discover the top 10 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 858,174 searches. Data last updated 17 December 2024.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£356Average£494FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
JetBlueCheapest£376Average£506FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
Air CanadaCheapest£384Average£537FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapest£443Average£590FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
British AirwaysCheapest£455Average£581FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LufthansaCheapest£461Average£582FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
FinnairCheapest£462Average£592FlexibilityNo cancel feeOn-time76%
Search Finnair flights
American AirlinesCheapest£473Average£638FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Virgin AtlanticCheapest£475Average£651FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Aer LingusCheapest£475Average£637FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

When you search for this flight from Heathrow to Philadelphia, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

Millions of users choose and trust Cheapflights to book the best flight deals from Heathrow to Philadelphia 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 Heathrow to Philadelphia with no change fees?

Need flexible booking options for your flight to Philadelphia from Heathrow? 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 Heathrow to Philadelphia become cheaper?

Yes! Start tracking prices for Heathrow to Philadelphia 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.

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.