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Cheap Flights from London (LHR) to Philadelphia (PHL)

View AU$783 flight on Wed, 2 Dec 2026Opens in a new window

Popular airlines from Heathrow Airport (LHR) to Philadelphia International Airport (PHL)

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Cheap Flights from London (LHR) to Philadelphia (PHL)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Wed, 2 Dec - Wed, 9 Dec
LHR
London
PHL
Philadelphia
AU$1,142 Return, found 22 hours ago
AU$1,142
Return
found 22 hours ago
Select Air Canada flight, departing Wed, 2 Dec from London to Philadelphia, returning Wed, 9 Dec, priced at AU$1,142 found 22 hours ago
United
Mon, 7 Sept - Mon, 14 Sept
LHR
London
PHL
Philadelphia
AU$1,158 Return, found 2 hours ago
AU$1,158
Return
found 2 hours ago
Select United flight, departing Mon, 7 Sept from London to Philadelphia, returning Mon, 14 Sept, priced at AU$1,158 found 2 hours ago
Air Canada
Mon, 7 Sept - Mon, 14 Sept
LHR
London
PHL
Philadelphia
AU$1,168 Return, found 2 hours ago
AU$1,168
Return
found 2 hours ago
Select Air Canada flight, departing Mon, 7 Sept from London to Philadelphia, returning Mon, 14 Sept, priced at AU$1,168 found 2 hours ago
British Airways
Wed, 2 Dec - Wed, 9 Dec
LHR
London
PHL
Philadelphia
AU$1,173 Return, found 22 hours ago
AU$1,173
Return
found 22 hours ago
Select British Airways flight, departing Wed, 2 Dec from London to Philadelphia, returning Wed, 9 Dec, priced at AU$1,173 found 22 hours ago
British Airways
Wed, 2 Dec - Wed, 9 Dec
LHR
London
PHL
Philadelphia
AU$1,177 Return, found 22 hours ago
AU$1,177
Return
found 22 hours ago
Select British Airways flight, departing Wed, 2 Dec from London to Philadelphia, returning Wed, 9 Dec, priced at AU$1,177 found 22 hours ago
Air Canada
Mon, 7 Sept - Mon, 14 Sept
LHR
London
PHL
Philadelphia
AU$1,182 Return, found 2 hours ago
AU$1,182
Return
found 2 hours ago
Select Air Canada flight, departing Mon, 7 Sept from London to Philadelphia, returning Mon, 14 Sept, priced at AU$1,182 found 2 hours ago
Lufthansa
Mon, 7 Sept - Mon, 14 Sept
LHR
London
PHL
Philadelphia
AU$1,190 Return, found 2 hours ago
AU$1,190
Return
found 2 hours ago
Select Lufthansa flight, departing Mon, 7 Sept from London to Philadelphia, returning Mon, 14 Sept, priced at AU$1,190 found 2 hours ago
United
Mon, 7 Sept - Mon, 14 Sept
LHR
London
PHL
Philadelphia
AU$1,205 Return, found 2 hours ago
AU$1,205
Return
found 2 hours ago
Select United flight, departing Mon, 7 Sept from London to Philadelphia, returning Mon, 14 Sept, priced at AU$1,205 found 2 hours ago
Finnair
Wed, 2 Dec - Wed, 9 Dec
LHR
London
PHL
Philadelphia
AU$1,262 Return, found 22 hours ago
AU$1,262
Return
found 22 hours ago
Select Finnair flight, departing Wed, 2 Dec from London to Philadelphia, returning Wed, 9 Dec, priced at AU$1,262 found 22 hours ago
British Airways
Wed, 2 Dec - Wed, 9 Dec
LHR
London
PHL
Philadelphia
AU$1,264 Return, found 22 hours ago
AU$1,264
Return
found 22 hours ago
Select British Airways flight, departing Wed, 2 Dec from London to Philadelphia, returning Wed, 9 Dec, priced at AU$1,264 found 22 hours ago

Alternative airports near Philadelphia

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Philadelphia Intl. PHL. Cheapest and Closest option available. Average driving time to city centre is 17 minutes. Flights from AU$1,783
PHL
Philadelphia Intl.
CheapestClosest
Average driving time to city centre17 min
Flights from AU$1,783

Find the cheapest month to fly from London (LHR) to Philadelphia (PHL)

February is typically the cheapest month to fly

From AU$791 - AU$1,316 per traveller.

Frequently asked questions

How much does a flight from London (LHR-Heathrow) to Philadelphia, PA (PHL-Philadelphia Intl.) cost?
You can find cheap one-way flights from AU$783 and cheap return flights from AU$1,142 LHR to PHL with Expedia. One-way flights typically cost between AU$929 and AU$4,978 and return flights often range between AU$1,115 and AU$5,983. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when LHR to PHL ticket fares go up or down.
What is the cheapest month to fly from London (LHR-Heathrow) to Philadelphia, PA (PHL-Philadelphia Intl.)?
The cheapest months to fly from LHR to PHL are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from London (LHR-Heathrow) to Philadelphia, PA (PHL-Philadelphia Intl.)?
There are 2 airlines offering direct flights from London Heathrow (LHR) to Philadelphia, PA (PHL-Philadelphia Intl.).
  • American Airlines operates 14 direct flights from London Heathrow (LHR) to Philadelphia, PA (PHL-Philadelphia Intl.) every week.
  • British Airways operates 7 direct flights from London Heathrow (LHR) to Philadelphia, PA (PHL-Philadelphia Intl.) every week.
How do I find cheap flights from London (LHR-Heathrow) to Philadelphia, PA (PHL-Philadelphia Intl.)?
To find a cheap flight from London (LHR-Heathrow) to Philadelphia, PA (PHL-Philadelphia Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from London (LHR-Heathrow) to Philadelphia, PA (PHL-Philadelphia Intl.)?
The best airline to fly with from London (LHR-Heathrow) to Philadelphia, PA (PHL-Philadelphia Intl.) will differ from traveler to traveler. If you like to fly early, American Airlines offers early morning flights. If price is the most important factor, American Airlines typically offers the lowest fares. British Airways offers the most daily flights from London (LHR-Heathrow) to Philadelphia, PA (PHL-Philadelphia Intl.), which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from London (LHR-Heathrow) to Philadelphia, PA (PHL-Philadelphia Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from London (LHR-Heathrow) to Philadelphia, PA (PHL-Philadelphia Intl.)?
You'll find around 3 nonstop flights per day from London Heathrow (LHR) to Philadelphia, PA (PHL-Philadelphia Intl.). For even more choices, look at flights that include layovers, as there are approximately 148 connecting flights per day. Some common connection points include Dublin (DUB), Logan Intl. (BOS), and O'Hare Intl. (ORD).
What is the earliest flight from London (LHR-Heathrow) to Philadelphia, PA (PHL-Philadelphia Intl.)?
The earliest flight from London Heathrow (LHR) to Philadelphia, PA (PHL-Philadelphia Intl.) typically departs around 6:00 AM local time. This service is operated by Air Canada and is seasonal, active only in July. An early departure like this allows you to maximise your time in Philadelphia. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from London (LHR-Heathrow) to Philadelphia, PA (PHL-Philadelphia Intl.)?
You'll find the most flights from London Heathrow (LHR) to Philadelphia, PA (PHL) on a Friday, with around 88 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include British Airways, American Airlines, and Delta. There are notably more flight options on Fridays compared to other days of the week, so you have a good selection to choose from.
What are the most popular departure times for flights from London (LHR-Heathrow) to Philadelphia, PA (PHL-Philadelphia Intl.)?
The most popular departure times for flights from London Heathrow (LHR) to Philadelphia, PA (PHL) are between 12pm and 3pm. Many major carriers, including British Airways, American Airlines and Air Canada, offer flights during this window. Many travellers prefer this time as it allows for a morning in London and an afternoon arrival in Philadelphia.
How long does it take to fly from London (LHR-Heathrow) to Philadelphia, PA (PHL-Philadelphia Intl.)?
A non-stop flight from London Heathrow (LHR) to Philadelphia, PA (PHL-Philadelphia Intl.) typically takes around 8 hours, covering a distance of approximately 5,691 kilometers. If you opt for a flight with one stop, your journey will usually take longer, averaging around 13 hours 18 minutes. Flights with two or more stops will extend your travel time even further, typically to about 18 hours 18 minutes. Keep in mind that actual flight times can vary due to factors like wind patterns and air traffic, so it's always a good idea to allow for some flexibility in your travel plans.
Can you fly business or first class from London (LHR-Heathrow) to Philadelphia, PA (PHL-Philadelphia Intl.)?
You can fly business class or first class between LHR and PHL. Airlines that offer business class service on this route include:
  • Air France
  • Iberia
  • Lufthansa
  • Air Canada
  • Med View Airlines
  • British Airways
  • Brussels Airlines
  • Swiss International Air Lines
  • TAP Portugal
  • Air Baltic
  • SAS
  • Icelandair
  • KLM
  • United
  • Delta
  • Virgin Atlantic
  • American Airlines
First class cabins are available on British Airways and American Airlines.
How do I earn miles on a London (LHR) to Philadelphia, PA (PHL) flight with Expedia?
It's easy to earn miles on a London (LHR) to Philadelphia, PA (PHL) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Philadelphia, PA (PHL) from London (LHR)?
If you're planning to travel to Philadelphia from Heathrow (LHR), you can fly directly into Philadelphia Intl. (PHL). Some flights may connect through major hubs like Zürich (ZRH), Roissy-Charles de Gaulle (CDG), or Brussels - National (BRU) before reaching Philadelphia. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from London (LHR) to Philadelphia, PA (PHL) at the last minute?
Typically, booking a last minute flight from London (LHR) to Philadelphia, PA (PHL) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a London (LHR) to Philadelphia, PA (PHL) flight and hotel package?
Securing a London (LHR) to Philadelphia, PA (PHL) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from London (LHR-Heathrow) to Philadelphia, PA (PHL-Philadelphia Intl.)?
If you booked your London (LHR-Heathrow) to Philadelphia, PA (PHL-Philadelphia Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Heathrow
Destination airport
Philadelphia Intl.
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, British Airways, Delta, Finnair, Iberia, KLM, Lufthansa, Swiss International Air Lines, United, Virgin Atlantic
Return price
AU$1,142
Distance
5656 km
Average flight time
3 hours 1 min

Book with confidence

Your quick guide to flights from London to Philadelphia

Pick up great flights from London to Philadelphia

With Expedia, you have your pick of flights a day with 20 airlines covering flights from London to Philadelphia. Whether you’re on a business trip, a family holiday or a luxury break, just enter your travel dates, hit search then check out your choice of flights. Select from return, one way or multi-city flights, and use the advance search tool if you want a direct or refundable flight. You can narrow your search to show you just your preferred cabin class and airline, too. It’s all easy. You can book direct flights from London to Philadelphia that take around hours.

Find cheap flights from London to Philadelphia

From the great flight deals with prices currently ranging from AU$1,142 to AU$1,264, you can choose to see the cheapest flights first. Generally, you can book the cheapest flights from London to Philadelphia around 4 to 6 weeks in advance. If your travel dates are flexible, try to avoid weekends and peak seasons – when you are more likely to grab the lowest prices. Even last minute, there are some impressive deals. The cheapest time to fly to Philadelphia is normally in December.

Reasons to book your flight from London to Philadelphia with Expedia

Expedia makes it easy to find, book, and travel, with everything you need all in one place. When you enter your travel details, find fantastic deals just for you on flight tickets from London to Philadelphia across all the main airline carriers, so you can save time, dollars, and hassle finding the perfect flight. If you think your plans could change, choose refundable flights so any changes won’t cost you more. Book your flight to Philadelphia right now and, if you join Expedia Rewards, you earn points this time and every time you travel with Expedia.

Your quick guide to flights from London to Philadelphia

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*Available to Expedia members.