$648 Cheap flights from Heathrow to Philadelphia Intl. (LHR to PHL)

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Find The Best Dates To Fly from Heathrow to Philadelphia Intl.

Amazing LHR to PHL Flight Deals

The cheapest flights to Philadelphia Intl. found within the past 7 days were $549 round trip and $648 one way. Prices and availability subject to change. Additional terms may apply.

Tue, Dec 31 - Wed, Mar 26
LHR
London
PHL
Philadelphia
$549 Roundtrip, found 2 days ago
$549
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Tue, Dec 31 from London to Philadelphia, returning Wed, Mar 26, priced at $549 found 2 days ago
Mon, Jan 27 - Mon, Feb 3
LHR
London
PHL
Philadelphia
$553 Roundtrip, found 6 hours ago
$553
Roundtrip
found 6 hours ago
Select JetBlue Airways flight, departing Mon, Jan 27 from London to Philadelphia, returning Mon, Feb 3, priced at $553 found 6 hours ago
Tue, Jan 21 - Tue, Jan 28
LHR
London
PHL
Philadelphia
$555 Roundtrip, found 1 hour ago
$555
Roundtrip
found 1 hour ago
Select British Airways flight, departing Tue, Jan 21 from London to Philadelphia, returning Tue, Jan 28, priced at $555 found 1 hour ago
Tue, Apr 22 - Tue, Apr 29
LHR
London
PHL
Philadelphia
$556 Roundtrip, found 1 hour ago
$556
Roundtrip
found 1 hour ago
Select JetBlue Airways flight, departing Tue, Apr 22 from London to Philadelphia, returning Tue, Apr 29, priced at $556 found 1 hour ago
Wed, Mar 26 - Wed, Apr 2
LHR
London
PHL
Philadelphia
$566 Roundtrip, found 1 day ago
$566
Roundtrip
found 1 day ago
Select American Airlines flight, departing Wed, Mar 26 from London to Philadelphia, returning Wed, Apr 2, priced at $566 found 1 day ago
Mon, Feb 24 - Mon, Mar 3
LHR
London
PHL
Philadelphia
$576 Roundtrip, found 12 hours ago
$576
Roundtrip
found 12 hours ago
Select Iberia flight, departing Mon, Feb 24 from London to Philadelphia, returning Mon, Mar 3, priced at $576 found 12 hours ago
Tue, Jan 21 - Tue, Jan 28
LHR
London
PHL
Philadelphia
$585 Roundtrip, found 1 hour ago
$585
Roundtrip
found 1 hour ago
Select British Airways flight, departing Tue, Jan 21 from London to Philadelphia, returning Tue, Jan 28, priced at $585 found 1 hour ago
Mon, Jan 6 - Mon, Jan 27
LHR
London
PHL
Philadelphia
$599 Roundtrip, found 7 hours ago
$599
Roundtrip
found 7 hours ago
Select Air Canada flight, departing Mon, Jan 6 from London to Philadelphia, returning Mon, Jan 27, priced at $599 found 7 hours ago
Mon, Jan 13 - Mon, Jan 20
LHR
London
PHL
Philadelphia
$600 Roundtrip, found 4 hours ago
$600
Roundtrip
found 4 hours ago
Select Brussels Airlines flight, departing Mon, Jan 13 from London to Philadelphia, returning Mon, Jan 20, priced at $600 found 4 hours ago
Tue, Dec 31 - Thu, Jan 9
LHR
London
PHL
Philadelphia
$603 Roundtrip, found 2 days ago
$603
Roundtrip
found 2 days ago
Select Virgin Atlantic flight, departing Tue, Dec 31 from London to Philadelphia, returning Thu, Jan 9, priced at $603 found 2 days ago

Frequently asked questions

Can I catch a flight from London Heathrow to Philadelphia Airport right now?
For info on any current Philadelphia Airport travel advice and quarantine requirements, go to the Covid-19 Travel Advisor. Check before you arrange your flight, so you don’t get caught out.
Are there direct flights from London Heathrow to Philadelphia Airport?
Some trips are all about the journey; other times, it’s all about the destination. If you’re itching to get to Philadelphia fast, multiple airlines provide direct flights from London Heathrow to PHL, including American Airlines and British Airways.
If I am not able to travel due to COVID-19, can I change my booking to a later date?
For more info about changing your flight to Philadelphia Airport, please visit our Customer Service Portal.
How long is the flight from London Heathrow to Philadelphia Intl. Airport (PHL)?
Taking around 12 hours and 49 minutes all up, traveling from London to Philadelphia is no piece of cake. On such a long journey, it’s wise to go for a wander to stretch your legs as often as possible.
What is the flight distance from LHR to Philadelphia Airport?
You’ll have traveled 3,500 mi by the time you’ve left the runway at Heathrow Airport (LHR) and made a smooth touchdown at PHL. We recommend you bring plenty of things to keep you busy — it’ll be a long flight.
What airlines fly from London Heathrow to PHL?
There are a number of airlines that offer direct flights from Heathrow Airport (LHR) to Philadelphia Intl. Airport (PHL). American Airlines (AA) is well-known, offering roughly 30 flights every month. If you’d like more options, consider British Airways (BA). This airline has 30 flights on the London to Philadelphia route each month. Between the two, there’s no doubt you’ll find the flight to suit your travel needs.
What airlines have practices regarding COVID-19 in place and use social distancing?
From the moment you enter the departure terminal to when you leave the arrivals terminal, if you’re flying with American Airlines, Delta or Frontier Airlines you can be sure that COVID-19 measures and social distancing rules have been adhered to. Many airlines have introduced capped capacity flights and keeping the middle seat empty.
What is the best day to buy a plane ticket?
This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that is when prices are generally at their highest.
What are the cheapest days to fly?
Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2021, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.
How far in advance can you book a flight?
Trying to figure out how early you should book your flight? It’s possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

 

Traveling From
Heathrow
Traveling To
Philadelphia Intl.
Shortest Flight Time
1 hours 55 mins
Earliest Departure Time
10:15AM EST
Latest Departure Time
1:10PM EST
Lowest Flight Price
$549

Route Info

Flight path for flights from London Heathrow Airport to Philadelphia International Airport


Origin:
LHR - London Heathrow Airport
Destination:
PHL - Philadelphia International Airport
Distance:
3,555.00 miles


Airlines & Aircraft Used on LHR to PHL Flight Routes


Airline Carrier
Aircraft
Air France
Airbus A320-100/200
American Airlines
Boeing 737 all pax models
British Airways
Airbus A320-100/200
Delta Air Lines
Airbus A320-100/200
Finnair
Boeing 747-400 pax
KLM
Airbus A320-100/200
Virgin Atlantic
Airbus A319

Discover our best flights from London LHR to Philadelphia PHL. 

With 20 airlines to choose from on Travelocity, you can easily find the best option for you. Use our filters to sort by price, compare airlines, and find the most convenient flight times. 

 

Find our best return flights from London LHR to Philadelphia PHL at the right price  

Airfares to Philadelphia PHL from London LHR currently cost between $549 and $1,498. It’s usually cheaper to book a round trip than two separate one-way flights. Prices and availability subject to change. Additional terms may apply. 

 

Book one-way flights from London LHR to Philadelphia PHL 

If you want to be flexible about when you return, or keep your travel options open ended, a one-way flight could be just the ticket! You’ll find one-way airfares from London LHR to Philadelphia PHL on Travelocity starting at $648. Prices and availability subject to change. Additional terms may apply. 

 

Get to Philadelphia PHL from London LHR quicker with direct flights. 

Get to Philadelphia faster, without the hassle of changing planes and moving baggage, by booking a direct flight. Expect your direct flight to PHL from LHR to take around 1 hour(s) 55 min(s).  

 

Find our cheapest airfares for flights from London LHR to Philadelphia PHL

Find cheap flight deals by using our search filters to sort results starting with the lowest price airfares to PHL from LHR. Our Price Match Promise means if you find a lower rate on Travelocity.com or on another US-based website within 24 hours of booking, we’ll credit or refund the difference.  

 

Get our best airfare deals for your flight from London LHR to Philadelphia PHL today 

If you’re flexible about when you travel, December is usually the cheapest month to fly from London LHR to Philadelphia PHL. If you need to be more specific, search by date and arrival and departure times.Then, compare prices across different airlines, and sort results by lowest price first. 

 

Book flexible airline tickets for flights to Philadelphia PHL from London LHR 

Some airlines let you change your travel dates without charging a fee. Use our ‘no change fee’ filter to see which flights to PHL from LHR have this option.  

 

Travel with confidence when you book flights to Philadelphia PHL from London LHR with Travelocity 

We’ve secured fantastic deals with all the main airline carriers and it’s easy to compare, choose, and book with Travelocity. With 24/7 customer service and our free 'App', we’ll always keep you moving. 

*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.