£148 Find Cheap Flights from Philadelphia to London – Compare and Save

You can find non-stop flights from PHL to London Heathrow Airport (LHR). Multiple airlines offer flights with one and two stops, including American Airlines, British Airways, United Airlines, and Delta Air Lines, with common layovers in New Jersey, Miami, and Washington DC.

Yes, there are a few currency exchange desks at LHR terminals, making it not only safer but convenient as you move around with money. At London Heathrow, you have the choice of ordering the currency online then collecting it as you pass through the airport, or getting currency conversion on the spot. You will find that the conversion prices are different for these two options.

Heathrow Airport has several amenities suitable for groups of people traveling with children, including complimentary kid’s meals, baby changing areas, family-friendly parking, as well as a free Mr. Adventure Stay and Play areas filled with slides, coloring stations, and activity sheets.

Disability assistance services should be arranged for before your day of travel. You will find that the airport bathrooms are readily equipped to cater to passengers with wheelchairs, with most having private bathrooms for people with reduced mobility.

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.

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

• American Airlines
• British Airways

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).

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 travellers should check the fare details before booking.

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

• Economy class
• Business Class

On this route, stopover flights are cheaper than direct options on average. Stopover fares average £561 return via Orlando (MCO), compared with £691 for direct.

There is no standard. Checked bag policies vary by airline on this route. Most carriers charge £52–£74 for the first checked bag in Economy. Premium fares and elite status bookings typically include a free checked bag.

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

• Boston Logan Intl (BOS) – 49% of one-stop connections
• Dublin (DUB) – 45% of one-stop connections
• Orlando (MCO) – 3% of one-stop connections
• Montreal Pierre Elliott Trudeau Intl (YUL) – 2% of one-stop connections

Boston Logan Intl (BOS) handles the largest share of one-stop connections on this route.

Yes. Being flexible with your travel dates can save you up to 21% on the Philadelphia to London route. Wednesday is the cheapest departure day at £605 return on average, while Sunday is the most expensive at £764, a difference of £160. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

Evening is the busiest departure period on Philadelphia to London flights, with 66% leaving in that window. Night departures account for 33%, Morning flights for 1%, and Afternoon flights for 0%.

Some of the most popular sights in London are London Victoria Station, London Euston Railway Station, and Hyde Park. These are among the most viewed places in London on KAYAK.

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

• Earliest: departs at 18:35 and lands at 01:44
• Latest: departs at 22:40 and lands at 05:49.

The flight takes about 7h 09m.

Last-minute fares on this route (booked within 2 weeks of departure) run 26% above the route average of £670. Book 10 weeks before departure for the lowest fares.

A direct flight from Philadelphia to London takes 7h 09m, 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.

One-way fares from Philadelphia to London are currently lower than usual. Average one-way flight prices are about £249, which is 38% below the typical average for this route.

Flying via Dublin (DUB) gives the shortest average 1-stop total travel time of 10h 41m, compared to 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.

Since London is served by multiple airports, car hire options and rates can vary depending on which one you fly into.
Near London Heathrow Airport (LHR) – daily rates from around £5:

· GREEN MOTION
· DRIVALIA
· Europcar
· Alamo
· Hertz

Near London Gatwick Airport (LGW) – daily rates from around £6:

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

Near London City Airport (LCY) – daily rates from around £8:

· GREEN MOTION
· Budget
· Hertz
· Avis
· Sixt

Near London Luton Airport (LTN) – daily rates from around £8:

· GREEN MOTION
· DRIVALIA
· Alamo
· Europcar
· Budget

Near London Stansted Airport (STN) – daily rates from around £7:

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

Return flights from Philadelphia to London range from £528 to £884, with an average of £670 over the past 12 months. Anything below £528 counts as a good deal.

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

• • British Airways
• • American Airlines
• • Iberia
• • Finnair