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Cheap flights from Philadelphia to London Heathrow Airport from £300

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 5/2. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — LHR
20 Nov — 27 Nov1
1 adult

The best prices from Philadelphia to London Heathrow are usually found in October or November, booked 10 days in advance, depart on a Sunday 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 15 November 2024.

Round-trip from

£498

One-way from

£300

Popular in

June

Cheapest in

October
Finnair
  • Finnair
  • 12/1-20/1
  • 1 total stop
  • 31h 00m total
  • Philadelphia to London
Scandinavian Airlines
  • Scandinavian Airlines
  • 5/2
  • 2 total stops
  • 27h 37m total
  • Philadelphia to London
High demand for flights, 24% potential price rise
Best time to find cheap flights, 16% potential price drop

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 15 November 2024.

Sat 28/1208:15PHL - LHR
1 stop16h 40mJetBlue
Thu 16/108:25LHR - PHL
1 stop15h 42mJetBlue
Deal found 14/11£499
Thu 5/1205:10PHL - LHR
2 stops22h 20mMultiple Airlines
Thu 12/1206:00LHR - PHL
3 stops33h 00mMultiple Airlines
Deal found 14/11£511
Wed 4/1218:40PHL - LHR
Nonstop6h 55mAmerican Airlines
Wed 11/1209:50LHR - PHL
1 stop11h 35mAmerican Airlines
Deal found 14/11£543
Mon 9/1218:40PHL - LHR
Nonstop6h 55mBritish Airways
Tue 14/106:30LHR - PHL
1 stop15h 10mBritish Airways
Deal found 14/11£543
Wed 4/1215:30PHL - LHR
1 stop10h 40mUnited Airlines
Wed 11/1206:30LHR - PHL
2 stops21h 06mUnited Airlines
Deal found 13/11£551
Fri 6/1215:30PHL - LHR
1 stop10h 40mAir Canada
Sun 8/1206:50LHR - PHL
2 stops13h 00mAir Canada
Deal found 14/11£554
Tue 10/1218:40PHL - LHR
Nonstop6h 55mFinnair
Tue 24/1213:10LHR - PHL
Nonstop8h 10mFinnair
Deal found 13/11£563
Wed 4/1209:37PHL - LHR
2 stops16h 28mDelta
Wed 11/1208:40LHR - PHL
2 stops15h 59mDelta
Deal found 14/11£573
Mon 18/1115:14PHL - LHR
2 stops19h 46mScandinavian Airlines
Mon 25/1106:40LHR - PHL
2 stops23h 14mScandinavian Airlines
Deal found 14/11£579
Thu 5/1218:40PHL - LHR
Nonstop6h 55mIberia
Wed 11/1210:15LHR - PHL
Nonstop8h 00mIberia
Deal found 13/11£588
Wed 4/1217:55PHL - LHR
1 stop10h 50mLufthansa
Tue 10/1219:30LHR - PHL
1 stop25h 30mLufthansa
Deal found 14/11£592
Wed 4/1217:30PHL - LHR
1 stop9h 35mAer Lingus
Wed 11/1208:50LHR - PHL
1 stop12h 10mAer Lingus
Deal found 14/11£595

Find flights from Philadelphia to Heathrow within your budget

Customise 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 943,810 searches. Data last updated 15 November 2024.

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Any airport

Fly to

Any airport

Route

Depart

Return

Price

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

Sun 12/1

18:40-06:35

Nonstop6h 55m

London Heathrow

Mon 20/1

19:00-14:05

1 stop24h 05m

£498

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

Sun 23/3

06:30-11:05

1 stop24h 35m

London Heathrow

Fri 4/4

14:05-14:46

1 stop29h 41m

£498

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

Fri 2/5

15:56-06:30

1 stop9h 34m

London Heathrow

Fri 9/5

07:25-15:01

1 stop12h 36m

£500

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

Wed 8/1

19:10-09:30

1 stop9h 20m

London Heathrow

Mon 13/1

19:00-14:05

1 stop24h 05m

£502

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

Tue 7/1

15:30-20:35

2 stops24h 05m

London Heathrow

Tue 14/1

18:00-14:50

2 stops25h 50m

£507

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

Fri 10/1

18:40-06:35

Nonstop6h 55m

London Heathrow

Fri 17/1

07:30-15:35

1 stop13h 05m

£509

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

Tue 7/1

16:04-09:30

1 stop12h 26m

London Heathrow

Fri 17/1

13:10-16:20

Nonstop8h 10m

£512

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

Thu 9/1

18:40-06:35

Nonstop6h 55m

London Heathrow

Tue 14/1

06:30-16:40

1 stop15h 10m

£521

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

Wed 8/1

17:55-10:45

1 stop11h 50m

London Heathrow

Mon 13/1

20:15-16:00

2 stops24h 45m

£532

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

Mon 10/2

13:03-16:00

2 stops21h 57m

London Heathrow

Tue 18/2

06:40-21:16

2 stops19h 36m

£545

Flights are sorted by cheapest first

Deals found on 14/11

Showing 1-10 of 33 results
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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 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 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 return flight from Philadelphia to Heathrow. Price data was last updated on 8 November 2024.

The best time to book flights from Philadelphia to London Heathrow Airport is 10 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, January is the cheapest month in which you can book a flight from Philadelphia to London Heathrow Airport (average of £112). Flying from Philadelphia to London Heathrow Airport in July is currently the most expensive (average of £160). 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 15 November 2024.

Unlike at midday, when flights are generally more expensive, you can save up to 29% on flights from Philadelphia to London Heathrow Airport by exploring options for tickets in the afternoon.

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 15 November 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 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.

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 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).

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 15 November 2024.
Peruse reviews from past customers who have flown with Finnair, United Airlines and JetBlue from Philadelphia to London to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very Good
8,786 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Reviews

1 / 10

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

8.0
Very Good
8,786 reviews
8.0
Very Good
8,786 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Reviews

1 / 10

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

7.8
Good
1,350 reviews
8.0
Very Good
8,786 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Reviews

1 / 10

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

7.7
Good
1,304 reviews
8.0
Very Good
8,786 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Reviews

1 / 10

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

7.6
Good
662 reviews
8.0
Very Good
8,786 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Reviews

1 / 10

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

7.5
Good
3,434 reviews
8.0
Very Good
8,786 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

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?

    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 10 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.

  • 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 Finnair. Our recent data shows that you can find tickets from as low as £498 on this airline. Additional options worth looking into are United Airlines and JetBlue, starting at £498 and £500 round-trip. Users have found that Finnair is 27% cheaper than the other options available to this destination.

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

    The cheapet airlines for a one-way flight from Philadelphia to London Heathrow Airport are Scandinavian Airlines (£300), British Airways (£308), and JetBlue (£309).

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

    Consider Malaysia Airlines (82%), American Airlines (75%) or Finnair (75%) 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 £301. On average you can expect to pay £563. The most popular route, (Philadelphia - London Heathrow), can usually be booked for £397.

  • 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, January is the cheapest month in which you can book a flight from Philadelphia to London Heathrow Airport (average of £112). Flying from Philadelphia to London Heathrow Airport in July is currently the most expensive (average of £160). 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

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Top 4 airlines flying from Philadelphia to Heathrow

Discover the top 4 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 943,810 searches. Data last updated 15 November 2024.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest£456Average£613FlexibilityNo cancel feeOn-time77%
Search Iberia flights
British AirwaysCheapest£473Average£670FlexibilityNo cancel feeOn-time70%
Search British Airways flights
JetBlueCheapest£484Average£613FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
Aer LingusCheapest£521Average£681FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus 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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