£348 Find Cheap Flights from London to Philadelphia – Compare and Save

All terminals at the London Heathrow Airport are very modern and offer a lot of convenient services, however Terminal 2 and Terminal 5 are considered to be the best according to world lists. Terminal 2 has many interesting restaurants like The Gorgeous Kitchen or The Flying Chariot whereas Terminal 5 offers a quality shopping experience with brands such as Chanel and Valentino.

Getting to the city centre of Philadelphia is easy with a SEPTA train that departs every half an hour from all terminals, the ticket will cost you about 6£. A cheaper alternative is a SEPTA bus with one airport stop on the Arrivals Road and three routes that take you through different stops. Those who prefer a more comfortable mode of transportation can take a taxi, the fare from the airport to the city centre is around 22£.

Yes, a car is the most common mode of transportation in the United States and if you plan to visit a lot of places which are spread out around the city, it is a good idea to rent a car at the airport. There are seven rental agencies at Philadelphia International Airport and you can reach them from the baggage claim zone via a free shuttle.

Those who are travelling to Philadelphia with a furry companion will be happy to hear that there are seven Pet Ports inside of each terminal and a few outdoor relief areas for animals which will surely make the time at the airport more bearable for the animals.

Travellers that are departing early or those that just want to relax before their flight can stay at one of London’s airport hotels before their flight. For instance, if you are leaving from Heathrow Airport (LHR), you can use Aerotel, whilst Gatwick Airport (LGW) has Courtyard by Marriott. Alternatively, if you are leaving from Stansted Airport (STN), you can opt for Holiday Inn Express.

As the flight from London to Philadelphia is quite long, you can enhance your comfort by booking an exclusive cabin class. For instance, if you fly with American Airlines, you will have the option of a first-class cabin, which offers comfy seats that fully recline.

If you want to reduce how much carbon output is attributed to your travel, you should look for flights that release fewer emissions. For instance, Iberia completes this route releasing roughly 64% fewer emissions compared to the average flight.

If you’re travelling to Philadelphia for work or if you just want to stay connected to your loved ones, you can choose an airline with internet access. For example, Iberia offers Wi-Fi to passengers throughout the journey.

Among airlines operating London to Philadelphia flights:

• Finnair: offers free seat selection
• American Airlines: offers extra legroom; offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

2 airlines operate flights between London and Philadelphia. The airlines offering direct flights on this route include:

• American Airlines
• British Airways

Flights from London to Philadelphia may depart from several airports in London area, including London City (LCY), London Gatwick (LGW), London Heathrow (LHR), London Luton (LTN), London Southend (SEN) and London Stansted (STN). Flights usually arrive at Philadelphia (PHL).

Here are some options for this route, based on selected ticket types and cabin classes:

• British Airways: a cabin bag and a checked bag in Economy class
• Finnair: a cabin bag and a checked bag in Economy class
• Iberia: a cabin bag and a checked bag in Economy class

Bag allowance can vary by ticket type, cabin class, route, and airline, so travellers should check the fare details before booking.

Four cabin classes are available on flights from London to Philadelphia:

• Economy class
• Premium Economy Class
• Business Class
• First Class

Prices vary by airline.

On this route, stopover flights are cheaper than direct options on average. Stopover fares average £485 return via Orlando (MCO), compared with £669 for direct.

There is no standard. Checked bag policies vary by airline on this route. Most carriers charge £55–£74 for the first checked bag in Economy. Premium fares and elite status bookings typically include a free checked bag.

One-stop flights from London to Philadelphia most commonly connect through:

• Dublin (DUB) – 57% of one-stop connections
• Boston Logan Intl (BOS) – 33% of one-stop connections
• Orlando (MCO) – 3% of one-stop connections
• Frankfurt am Main (FRA) – 3% of one-stop connections

Dublin (DUB) handles the largest share of one-stop connections on this route.

Yes. Being flexible with your travel dates can save you up to 14% on the London to Philadelphia route. Tuesday is the cheapest departure day at £600 return on average, while Sunday is the most expensive at £690, a difference of £90. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the London to Philadelphia route, 16% of flights were delayed in the past 3 months, with delays averaging 2 hours 28 minutes.

Afternoon is the busiest departure period on London to Philadelphia flights, with 66% leaving in that window. Morning departures account for 34%, Evening flights for 0%, and Night flights for 0%.

Some of the most popular sights in Philadelphia are Philadelphia Convention Center, Rittenhouse Square, and Pennsylvania Convention Center. These are among the most viewed places in Philadelphia on KAYAK.

These are the earliest and latest flight times available from London to Philadelphia:

• Earliest: departs at 09:15 and lands at 17:16
• Latest: departs at 13:45 and lands at 21:46.

The flight takes about 8h 01m.

Last-minute fares on this route (booked within 2 weeks of departure) run 14% above the route average of £653. Book 20 weeks before departure for the lowest fares.

A direct flight from London to Philadelphia takes 8h 01m, covering 3,546 miles.

Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

Yes. Based on fares seen in the past 5 days, return flight prices on this route showed a wide range, from about £586 to £5,325. That means the highest observed fare was about 9x higher than the lowest one.

One-way fares from London to Philadelphia are currently lower than usual. Average one-way flight prices are about £386, which is 30% below the typical average for this route.

Morning flights have the fewest delays on this route. Delays tend to pile up throughout the day as one late flight pushes the next, so earlier departures are usually more reliable.

Flying via Dublin (DUB) gives the shortest average 1-stop total travel time of 10h 59m, compared to 11h 58m via Washington, D.C. Dulles Intl (IAD) and 11h 59m via Montreal Pierre Elliott Trudeau Intl (YUL).

Philadelphia is 5 hours behind London (Eastern Time vs British Time). Plan for the time shift when scheduling connections or first-day activities.

Philadelphia Airport (PHL) hosts 5 major car hire companies, with daily rates starting from around £21 for economy cars. Top options include:
· Payless
· Dollar
· Hertz
· Thrifty
· Budget

Return flights from London to Philadelphia range from £546 to £784, with an average of £653 over the past 12 months. Anything below £546 counts as a good deal.

American Airlines is the only airline on the London to Philadelphia route offering in-flight Wi-Fi. Pricing depends on fare class.