Cheap flights from London to Philadelphia Intl

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Philadelphia (PHL)
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The best prices from London to Philadelphia Intl are usually found in February or November, booked 57 days in advance, depart on a Tuesday or Thursday and return on a Wednesday

How to find the cheapest flight from
London (LON) to Philadelphia Intl (PHL)

LON - PHL
Price
£319 - £535
PHL
Temperature
7 - 31 °C
PHL
Rainfall
60 - 114 mm

Popular in

July

High demand for flights, 29% potential price rise

Cheapest in

February

Best time to find cheap flights, 16% potential price drop

Average price

£323

Average for round-trip flights in March 2021

Round-trip from

£319

From London to Philadelphia Intl

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly return from London to Philadelphia Intl?

Flying to your destination on a Saturday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to Philadelphia Intl. Check prices with Cheapflights to find a great deal for your trip.

How far in advance should I book a flight from London to Philadelphia Intl?

To save up to 38% on this flight, we recommend booking at least 54 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from London to Philadelphia Intl from £405 1-2 weeks out and tickets from £496 for flights departing within the next 72 hours.

What is the cheapest month to fly from London to Philadelphia Intl?

The best pricing can be found in the month of February. Prices to Philadelphia Intl from London average £382. You can even find prices in February for less than £382, as users have found deals to Philadelphia Intl from as low as £277. The month of July appears to be one of the more expensive times to travel to Philadelphia Intl from London. Flying in the targeted month can save you up to 40%.

When is the cheapest time to fly from London to Philadelphia Intl (LON - PHL)?

When flying from London to Philadelphia Intl, the time of day you fly usually plays a role in the price. Save by searching for a flight at midday, which can drop the price by up to 11% versus a flight in the evening.

Cheap flights from London to Philadelphia Intl in March, April 2021

26 Apr - 6 May
£358pp
LHR
London Heathrow
Air Canada
   
2 STOPS
PHL
Philadelphia
PHL
Philadelphia
Air Canada
 
1 STOP
LHR
London Heathrow
24 Apr - 5 May
£359pp
LHR
London Heathrow
Air Canada
   
2 STOPS
PHL
Philadelphia
PHL
Philadelphia
Air Canada
   
2 STOPS
LHR
London Heathrow
26 Apr - 6 May
£360pp
LHR
London Heathrow
Virgin Atlantic
 
1 STOP
PHL
Philadelphia
PHL
Philadelphia
Virgin Atlantic
 
1 STOP
LHR
London Heathrow

London to Philadelphia Intl 2021 flight deals

1 Sep - 15 Sep
£332pp
LHR
London Heathrow
Multiple airlines
 
1 STOP
PHL
Philadelphia
PHL
Philadelphia
Air Canada
 
1 STOP
LHR
London Heathrow
18 May - 5 Jun
£332pp
LHR
London Heathrow
Multiple airlines
 
1 STOP
PHL
Philadelphia
PHL
Philadelphia
Air Canada
 
1 STOP
LHR
London Heathrow
1 Sep - 15 Sep
£333pp
LHR
London Heathrow
Multiple airlines
   
2 STOPS
PHL
Philadelphia
PHL
Philadelphia
Air Canada
 
1 STOP
LHR
London Heathrow

Direct flights to Philadelphia Intl from London

22 Jun - 29 Jun
£357pp
LHR
London Heathrow
Finnair
Direct
PHL
Philadelphia
PHL
Philadelphia
Finnair
Direct
LHR
London Heathrow
26 Apr - 6 May
£363pp
LHR
London Heathrow
Finnair
Direct
PHL
Philadelphia
PHL
Philadelphia
Finnair
Direct
LHR
London Heathrow
9 Jun - 16 Jun
£365pp
LHR
London Heathrow
Finnair
Direct
PHL
Philadelphia
PHL
Philadelphia
Finnair
Direct
LHR
London Heathrow

Last-minute flights from London to Philadelphia Intl

17 Mar - 12 Apr
£491pp
LHR
London Heathrow
United Airlines
   
2 STOPS
PHL
Philadelphia
PHL
Philadelphia
United Airlines
 
1 STOP
LHR
London Heathrow
17 Mar - 12 Apr
£493pp
LHR
London Heathrow
United Airlines
   
2 STOPS
PHL
Philadelphia
PHL
Philadelphia
United Airlines
   
2 STOPS
LHR
London Heathrow
17 Mar - 12 Apr
£501pp
LHR
London Heathrow
United Airlines
 
1 STOP
PHL
Philadelphia
PHL
Philadelphia
United Airlines
 
1 STOP
LHR
London Heathrow

One-way flights to Philadelphia Intl from London

02:30 - 12:10
Lufthansa
1 stop
14h 40m
LHR - PHL
Lufthansa
£270
Lufthansa
07:05 - 14:51
Brussels Airlines
2 stops
36h 46m
LHR - PHL
Brussels Airlines
15:35 - 09:35
American Airlines
1 stop
23h 00m
LHR - PHL
American Airlines

Related info for your journey

Flight FAQs

From London to Philadelphia Intl

Are flight prices decreasing from London to Philadelphia due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both London and Philadelphia for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

What safety measures are being taken by airlines flying from London to Philadelphia to control the spread of COVID-19?

New policies can now be found on Delta to help keep travellers safe while flying. Airline carriers are regularly disinfecting and sanitising their aircraft. Masks are provided and are mandatory while on board. Pre-flight testing for symptoms and antibodies, alongside socially-distanced seating (for a limited time) will work towards keeping travellers safer while flying from London to Philadelphia. Policies will vary by airline.

Which airlines flying from London to Philadelphia have flexible cancellations due to COVID-19?

Due to the rapidly changing circumstances due to COVID-19, airlines like British Airways, Finnair, and American Airlines flying from London to Philadelphia have implemented new flexible cancellation policies.

Can I find flights from London to Philadelphia Intl for under £361 on Cheapflights?

Yes, there are multiple flights from London to Philadelphia Intl for under £361. The cheapest flight booked recently is on Multiple Airlines for just £332, but on average you can expect to pay £340.

Are there direct flights from London to Philadelphia Intl for under £361 on Cheapflights?

Cheapflights has 20 direct flights from London to Philadelphia Intl under £361. A good price for a direct flight from London to Philadelphia Intl is less than £407.

Are there last-minute flights available from London to Philadelphia Intl for under £506?

There are currently 4+ open flights from London to Philadelphia Intl within the next 7 days for less than £506.

What days are direct flights available from London to Philadelphia?

Direct flights are available for this route on the following days: Saturday.

Is London weather warmer or cooler than Philadelphia?

Temperatures around the 31 °Cs can be experienced in July. The weather in Philadelphia is hotter than in London. Plan for potential changes in flight availability as peak weather approaches in this location.

How long does is the flight from London to Philadelphia Intl?

Departing from London to Philadelphia Intl will take you 8h 05m. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

What are the cheapest airlines to flying from London to Philadelphia Intl return?

Our cheapest airline available from London to Philadelphia Intl is Finnair. Our recent data shows that you can find tickets from as low as £346 on this airline. Additional options worth looking into are Lufthansa and Air Canada, starting at £347 and £352 round-trip. Finnair is 9% cheaper than the average price of flights available within the next 90 days to this destination.

What are the cheapest airlines to fly from London to Philadelphia Intl one-way?

For one-way options, check prices for Lufthansa. According to our data, you can fly for as low as £270. Users have also found prices from £271 and £279 on Lufthansa and Air Canada, respectively.

Alternative routes for London to Philadelphia Intl

Destination information for Philadelphia Intl

Today's exchange rate
£1 = $1.39
Flight duration
7h 45m
Average temperature for March in Philadelphia Intl
13.0 °C
Avg rainfall for March in Philadelphia Intl
106.0 mm

Airports servicing London

Gatwick (LGW)
City (LCY)
Stansted (STN)
Luton (LTN)
Southend (SEN)

Airports servicing Philadelphia

Top 10 airlines flying from London to Philadelphia Intl

Airline Cheapest Average Flexibility On-time COVID-19 safety
Air France
£372 £491 No cancel fee 77%
Search Air France flights
Virgin Atlantic
£339 £537 No cancel fee 72%
Search Virgin Atlantic flights
Air Canada
£389 £537 No cancel fee 67%
Search Air Canada flights
Delta
£427 £538 No cancel fee N/A
Search Delta flights
KLM
£368 £557 No cancel fee 75%
Search KLM flights
American Airlines
£366 £653 No cancel fee 71%
Search American Airlines flights
British Airways
£363 £653 No cancel fee 70%
Search British Airways flights
Finnair
£377 £660 No cancel fee 76%
Search Finnair flights
Icelandair
£470 £675 No cancel fee 76%
Search Icelandair flights
Aer Lingus
£484 £691 No cancel fee N/A
Search Aer Lingus flights
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