$370 Cheap Flights from Philadelphia to London

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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 $761 round trip and $370 one way. Prices and availability subject to change. Additional terms may apply.

Flight Schedule for PHL to LHR

CarrierFlightDepart PHLArrive LHRSat
BA6607:00 pm07:10 amCheck FareCheck FareCheck FareCheck FareCheck FareCheck FareCheck Fare
0 Stops
AA73608:57 pm09:00 amCheck FareCheck FareCheck FareCheck FareCheck FareCheck FareCheck Fare
0 Stops
AA72811:03 pm11:05 amCheck FareCheck FareCheck FareCheck FareCheck FareCheck FareCheck Fare
0 Stops

Best Heathrow Flight and Hotel Packages

Heathrow flight + hotel packages - economy flights

The Piccadilly London West End
Best Western Northfields Ealing Hotel
Leonardo Hotel London Croydon - formerly Jurys Inn
The Prime London Hotel
City Sleeper at Royal National Hotel
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Frequently asked questions

Can I catch a flight from Philadelphia Intl. Airport (PHL) to Heathrow Airport (LHR) right now?
It’s wise to know about any quarantine requirements and travel advice reports in effect in your destination. Ensure you check out the Covid-19 Travel Advisor for up-to-date info on catching a flight to Heathrow Airport (LHR) from Philadelphia Airport.
Are there direct flights from Philadelphia Airport to London Heathrow?
Your next amazing adventure is on the opposite side of a single flight. You can travel direct from PHL to LHR with multiple airlines, 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 Heathrow Airport, please visit our Customer Service Portal.
How long is the flight from PHL to London Heathrow?
The trip from Philadelphia Airport to Heathrow Airport (LHR) usually takes around 11 hours and 43 minutes. You’ll have more than enough time to catch up on some sleep on this lengthy flight, but don’t forget to take essentials like a travel pillow if you really want to be comfortable.
What is the flight distance from PHL to London Heathrow?
The distance from PHL to Heathrow Airport (LHR) is 3,500 mi. Aside from cramming your laptop with more films, it’ll be smart to carry some noise-canceling earbuds and a pullover as well.
What airlines fly from PHL to Heathrow Airport?
You’ll find a few airlines that have direct flights between Philadelphia and London. American Airlines (AA) is one of the most reliable. This carrier operates at least 30 flights each month. An alternative is British Airways (BA), which offers 30 flights each month. The more airlines you take into account, the more likely you are to find a fantastic deal.
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 SAS 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
Philadelphia Intl.
Traveling To
Shortest Flight Time
7 hours 2 mins
Earliest Departure Time
6:30PM EDT
Latest Departure Time
11:03PM EDT
Lowest Flight Price

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 $761 and $855. 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) 2 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 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 Philadelphia PHL to London LHR today 

If you’re flexible about when you travel, May 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.