Flights from Philadelphia Intl. (PHL) to Heathrow (LHR) starting at $370

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

Amazing PHL to LHR Flight Deals

The cheapest flights to Heathrow found within the past 7 days were $505 round trip and $370 one way. Prices and availability subject to change. Additional terms may apply.

Flight Schedule for PHL to LHR

CarrierFlightDepart PHLArrive LHRThu
AA73607:30 pm07:45 amCheck FareCheck FareCheck FareCheck FareCheck FareCheck FareCheck Fare
0 Stops

Best Heathrow Flight and Hotel Packages

Heathrow flight + hotel packages - economy flights

The Harrington
Grand Plaza Serviced Apartments
Lancaster Hall Hotel
Novotel London Waterloo
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FAQs about flights from Philadelphia Intl. Airport (PHL) to Heathrow Airport (LHR)

Can I catch a flight from Philadelphia, PA Airport (PHL-Philadelphia Intl.) to London Airport (LHR-Heathrow) right now?

For any current London Airport (LHR-Heathrow) quarantine requirements and travel advice, go to our Covid-19 Travel Advisor. Check before you arrange your flight, so you don't get caught up en route.

Are there direct flights from PHL to Heathrow Airport?

For nonstop flights from Philadelphia Airport to London Airport (LHR-Heathrow), reserve a seat with American Airlines. This airline is perfect for you if you prefer to get from A to B as easily as possible.

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 London Heathrow, please visit our Customer Service Portal.

How long is the flight from PHL to London Airport (LHR-Heathrow)?

It takes about 12 hours and 17 minutes to get from Philadelphia to London. For this lengthy flight, you'll benefit from being as organized as possible. Think about bringing a neck pillow for improved sleep, packing a few snacks and wearing practical shoes and clothing.

What is the flight distance from Philadelphia Intl. Airport (PHL) to LHR?

Your plane will have flown 5,654 mi by the time you've left the tarmac at PHL and touched down smoothly at Heathrow Airport. Remember to bring lots to keep you entertained — it's going to be a long flight.

What airlines fly from PHL to Heathrow Airport (LHR)?

Finally decided on the dates for your big adventure? Eager to fly nonstop from Philadelphia to London? With American Airlines offering up to 45 flights per month, you'll be soaring above the clouds in next to no time.

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 British Airways, Virgin Atlantic or Aer Lingus 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 2020. Wednesday and Friday prices are also good, but you may want to prepare your budget if booking on a Sunday, as data shows the end of the week 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 2020, 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 2020 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 2 weeks to 2 months prior to their travel dates.

How can I save money on airline tickets?

We'll let you in on a secret...You can save big on flights if you mix and match your airlines and fare types. In fact, travelers who booked flights on Travelocity in 2020 saved nearly 40% when their return flights consisted of two different airlines or fare types.

*According to flight demand on from January to December 2020. Savings are subject to change based on departure location, date and destination.

Philadelphia Intl. to Heathrow Flight FAQ

Traveling From Philadelphia Intl.
Traveling To Heathrow
Shortest Flight Time 7 hours 15 mins
Earliest Departure Time 7:30PM EDT
Latest Departure Time 7:30PM EDT
Lowest Flight Price $505

Route Info

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

3,555.00 miles

Airlines & Aircraft Used on PHL to LHR Flight Routes

Airline Carrier
American Airlines
Antonov AN-24
American Airlines
Boeing 737-700 pax
American Airlines
Boeing 737-800 (winglets) pax
American Airlines
Boeing 757-200 pax
American Airlines
Canadair Regional Jet
American Airlines
De Havilland Canada DHC-8 Dash 8 all models
American Airlines
De Havilland Canada DHC-8-300 Dash 8 / 8Q
British Airways
Boeing 737-700 pax
Canadair Regional Jet 700
Embraer RJ140
Embraer RJ145 Amazon

Discover our best flights from Philadelphia PHL to London LHR. 

With 19 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 Philadelphia PHL to London LHR at the right price  

Airfares to London LHR from Philadelphia PHL currently cost between $505 and $706. 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 Philadelphia PHL to London LHR 

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 Philadelphia PHL to London LHR on Travelocity starting at $370. Prices and availability subject to change. Additional terms may apply. 


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

Get to London faster, without the hassle of changing planes and moving baggage, by booking a direct flight. Expect your direct flight to LHR from PHL to take around 7 hour(s) 15 min(s).  


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

Find cheap flight deals by using our search filters to sort results starting with the lowest price airfares to LHR from PHL. Our Price Match Promise means if you find a lower rate on 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 Philadelphia PHL to London LHR today 

If you’re flexible about when you travel, December is usually the cheapest month to fly from Philadelphia PHL to London LHR. 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 London LHR from Philadelphia PHL 

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


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