$286 Find Cheap Flights from Philadelphia to London - Compare and Save

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

• Earliest: departs at 6:35 pm and lands at 1:42 am
• Latest: departs at 10:10 pm and lands at 5:17 am.

The flight takes about 7h 07m.

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

• Economy Class
• Premium Economy Class
• Business Class

A nonstop flight from Philadelphia to London takes 7h 07m, 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.

Round-trip flights from Philadelphia to London range from $787 to $1,278, with an average of $988 over the past 12 months. Anything below $787 counts as a good deal.

Last-minute fares on this route (booked within two weeks of departure) run 33% above the $988 route average. Book 14 weeks before departure for the lowest fares.

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $837 round-trip via Boston Logan Intl (BOS), compared to $1,024 for nonstop.

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $69–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

Evening is the busiest departure period on Philadelphia to London flights, with 100% of flights leaving in that window. Morning departures account for 0%, afternoon flights for 0%, and night flights for 0%.

Four airlines offer in-flight Wi-Fi on Philadelphia to London flights:

• British Airways
• American Airlines
• Iberia
• Finnair

Pricing varies by airline and fare class. Some plans are included with the ticket or loyalty program; others are paid add-ons priced by flight length.

One-way fares from Philadelphia to London are currently lower than usual. Average one-way flight prices are about $325, which is 43% below the typical average for this route.

Since London is served by multiple airports, car rental options and rates can vary depending on which one you fly into.
Near London Heathrow Airport (LHR) — daily rates from around $7:

• GREEN MOTION
• DRIVALIA
• Europcar
• Alamo
• Hertz

Near London Gatwick Airport (LGW) — daily rates from around $7:

• GREEN MOTION
• DRIVALIA
• U-Save
• Europcar
• Alamo

Near London City Airport (LCY) — daily rates from around $10:

• GREEN MOTION
• Budget
• Hertz
• Avis
• Sixt

Near London Stansted Airport (STN) — daily rates from around $10:

• GREEN MOTION
• DRIVALIA
• Europcar
• Alamo
• U-Save

Near London Luton Airport (LTN) — daily rates from around $11:

• GREEN MOTION
• DRIVALIA
• Alamo
• Europcar
• U-Save

Flights from Philadelphia to London usually depart from Philadelphia (PHL) and may arrive at 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).

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

• Dublin (DUB) - 48% of one-stop connections
• Boston Logan Intl (BOS) - 46% of one-stop connections
• Toronto Pearson Intl (YYZ) - 3% of one-stop connections
• Orlando (MCO) - 2% of one-stop connections

Yes. Flexible dates can save you up to 13% on flights from Philadelphia to London. Wednesday is the cheapest departure day at $955 round-trip on average, while Sunday is the most expensive at $1,093, a difference of $138.

KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

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

• American Airlines
• British Airways

Flying via Dublin (DUB) gives the shortest average 1-stop total travel time at 10h 43m, compared with 10h 46m via Washington, D.C. Dulles Intl (IAD) and 11h 22m via Charlotte Douglas (CLT).

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

Some of the most popular sights in London are Hyde Park and Buckingham Palace. These are among the most viewed places in London on KAYAK.

Among airlines operating Philadelphia to London flights:

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

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

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
• American Airlines: 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 always check the fare details before booking.

Yes, car rental offices are available at LHR. The offices are on the ground level of Terminal 3, a short distance from the Arrivals Hall.

Yes, London Heathrow Airport (LHR) has a few currency exchange desks across its terminals. Currency can be ordered online for collection at the airport or exchanged on the spot.

Heathrow Airport offers several amenities for families traveling with children, including complimentary kids' meals, baby changing areas, family-friendly parking and the Mr. Adventure & Little Miss Explorer mobile game with online quizzes, coloring and spot-the-difference games.

Yes, disability assistance services should be arranged before the day of travel. Accessible toilets are located throughout the airport and Changing Places are available for departing passengers.

American Airlines, United and Delta have lounges at Philadelphia International Airport (PHL). American Airlines has an Admirals Club in Terminal A-East, the B-C Connector and Terminal F. The United Club is located between Concourses C and D at Philadelphia International Airport, while Delta Sky Club is in the Terminal D-E Connector.

Yes. At Philadelphia International Airport (PHL), on-site parking options include the terminal parking garages, the Economy Parking Lot and PHL Valet. Private off-site parking facilities near the airport also offer long-term parking and shuttle service to PHL. Among the airport-operated overnight and long-term options, the Economy Parking Lot is the lowest-priced choice.

A First Aid room is available in the main terminal before security for passengers who would like to breastfeed privately.