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Cheap flights from Philadelphia (PHL) to London (LON)

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The best prices from Philadelphia to London are usually found in February or January, booked 39 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

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

PHL - LON
Price
$537 - $902
LON
Temperature
48.2 - 73.4 °F
LON
Rainfall
1.4 - 2.8 inches

Popular in

June

High demand for flights, 26% potential price rise

Cheapest in

February

Best time to find cheap flights, 20% potential price drop

Round-trip from

$537

From Philadelphia to London

One-way from

$303

One-way flight from Philadelphia to London

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 round-trip from Philadelphia to London?

Departing on a Monday is a good option for securing a great price. You can expect to save up to 15% when planning your travel around this day of the week.

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

To save on the cost of your flight from Philadelphia to London, book at least 61 days before your planned departure. Booking around this time can save you about 44% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $910 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $1,146.

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

October is one of the best times of the year to fly to London from Philadelphia. Prices for October average $714 per person but you can even find prices for as low as $445. The most expensive prices can be found in the month of July. Opting for a October flight can save you 31% on your journey compared to booking in October

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

A simple way to save on the total cost of your ticket is to fly from Philadelphia to London in the evening. If you’re flexible enough to do this you can expect to save up to 8% on your trip compared to booking a flight in the afternoon.

Cheap flights from Philadelphia to London in February, March 2021

30 Mar - 1 Apr
$598pp
PHL
Philadelphia
Multiple Airlines
     
3 STOPS
STN
London Stansted
STN
London Stansted
Multiple Airlines
 
1 STOP
PHL
Philadelphia
20 Mar - 27 Mar
$611pp
PHL
Philadelphia
Multiple Airlines
     
3 STOPS
STN
London Stansted
STN
London Stansted
Multiple Airlines
 
1 STOP
PHL
Philadelphia
8 Mar - 29 Mar
$619pp
PHL
Philadelphia
Multiple Airlines
     
3 STOPS
STN
London Stansted
STN
London Stansted
Multiple Airlines
 
1 STOP
PHL
Philadelphia

Philadelphia to London 2021 flight deals

19 Apr - 26 Apr
$474pp
PHL
Philadelphia
Multiple Airlines
     
3 STOPS
STN
London Stansted
STN
London Stansted
Multiple Airlines
 
1 STOP
PHL
Philadelphia
2 Apr - 9 Apr
$499pp
PHL
Philadelphia
Multiple Airlines
     
3 STOPS
STN
London Stansted
STN
London Stansted
Multiple Airlines
 
1 STOP
PHL
Philadelphia
2 Apr - 9 Apr
$500pp
PHL
Philadelphia
Multiple Airlines
     
3 STOPS
LGW
London Gatwick
LGW
London Gatwick
Multiple Airlines
 
1 STOP
PHL
Philadelphia

Non-stop flights to London from Philadelphia

4 May - 11 May
$844pp
PHL
Philadelphia
Finnair
Non-Stop
LHR
London Heathrow
LHR
London Heathrow
Finnair
Non-Stop
PHL
Philadelphia
26 Apr - 11 May
$858pp
PHL
Philadelphia
British Airways
Non-Stop
LHR
London Heathrow
LHR
London Heathrow
British Airways
Non-Stop
PHL
Philadelphia
18 Apr - 26 Apr
$888pp
PHL
Philadelphia
Finnair
Non-Stop
LHR
London Heathrow
LHR
London Heathrow
Finnair
Non-Stop
PHL
Philadelphia

Last minute flights from Philadelphia to London

5 Mar - 12 Mar
$1,094pp
PHL
Philadelphia
Brussels Airlines
   
2 STOPS
LHR
London Heathrow
LHR
London Heathrow
Brussels Airlines
   
2 STOPS
PHL
Philadelphia
5 Mar - 12 Mar
$1,358pp
PHL
Philadelphia
Delta
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
Delta
   
2 STOPS
PHL
Philadelphia
5 Mar - 12 Mar
$1,360pp
PHL
Philadelphia
Delta
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
Delta
 
1 STOP
PHL
Philadelphia

One-way flights to London from Philadelphia

4:00 am - 4:10 am
Multiple Airlines
1 Stop
19h 10m
PHL - LHR
Multiple Airlines
$396
Kiwi.com
2:17 pm - 2:45 pm
Multiple Airlines
2 Stops
19h 28m
PHL - LGW
Multiple Airlines
$303
Combigo
3:05 pm - 3:50 am
Multiple Airlines
2 Stops
31h 45m
PHL - STN
Multiple Airlines
$326
Combigo

Related info for your journey

Flight FAQs

From Philadelphia to London

Are flight prices decreasing from Philadelphia to London 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 Philadelphia and London 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 Philadelphia to London to control the spread of COVID-19?

Delta is one of the many airlines that have implemented additional safety measures to control the spread of COVID-19. Some of the new policies that have been implemented to accommodate travelers flying from Philadelphia to London are improved sanitation, HEPA filters, mask requirements, social distance seating (for a limited time), and pre-flight testing for antibodies and symptoms. Policies will vary by airline.

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

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

Can I find flights from Philadelphia to London for under $500 on Cheapflights?

Yes, there are multiple flights from Philadelphia to London for under $500. The cheapest flight booked recently is on Multiple Airlines for just $474, but on average you can expect to pay $550.

Are there nonstop flights from Philadelphia to London for under $900 on Cheapflights?

Cheapflights has at least 20 direct flights from Philadelphia to London under $900. A good price for a nonstop flight from Philadelphia to London is less than $930.

Are there last-minute flights available from Philadelphia to London for under $1,100?

There are currently 3+ open flights from Philadelphia to London within the next 7 days for less than $1,100.

Is Philadelphia weather warmer or cooler than London?

Temperatures around the 88 °F's can be experienced in July. The weather in London is colder than in Philadelphia. Plan for potential changes in flight availability as peak weather approaches in this location.

How long is the flight from Philadelphia to London?

Departing from Philadelphia to London will take you 10h 10m.

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

The cheapest airline for a one-way flight from Philadelphia to London is TAP AIR PORTUGAL ($358).

Alternative routes for Philadelphia to London

Destination information for London

Today's exchange rate
$1 = £0.72
Average temperature for February in London
50.0 °F
Avg rainfall for February in London
1.5 ″

Airports servicing Philadelphia

Airports servicing London

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

Top 10 airlines flying from Philadelphia to London

Airline Cheapest Average Flexibility On-time COVID-19 safety
Delta
$484 $691 No cancel fee N/A
Virgin Atlantic
$499 $711 No cancel fee 72%
Icelandair
$407 $734 No cancel fee 76%
Iberia
$475 $735 No cancel fee 77%
American Airlines
$434 $776 No cancel fee 71%
Aer Lingus
$518 $803 No cancel fee N/A
United Airlines
$401 $810 No cancel fee 69%
Finnair
$463 $813 No cancel fee 76%
Lufthansa
$513 $826 No cancel fee 76%
British Airways
$434 $865 No cancel fee 70%
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