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

You can find cheap one-way flights from AU$770 and cheap return flights 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.

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.

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.

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.

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.

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.

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).

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.