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

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The best prices from Philadelphia Intl 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 Intl (PHL) to London (LON)

All the information you need to plan the best PHL to LON flight in 2021: compare Philadelphia Intl to London flight prices with the expected peak season, weather and rainfall in London.
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 Intl to London

One-way from

$298

One-way flight from Philadelphia Intl 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 Intl to London?

Flights from Philadelphia Intl to London are found to be more expensive on Thursday. This shouldn't discourage you from searching as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to London.

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

To save on the cost of your flight from Philadelphia Intl 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 Intl to London?

October is one of the best times of the year to fly to London from Philadelphia Intl. 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 Intl to London (PHL - LON)?

When flying from Philadelphia Intl to London, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 13% versus a flight in the morning.

Cheap flights from Philadelphia Intl to London in May, June 2021

The best prices found for PHL to LON flights for May, June
9 Jun - 22 Jun
$570pp
PHL
Philadelphia
Multiple Airlines
 
1 STOP
STN
London Stansted
STN
London Stansted
Multiple Airlines
 
1 STOP
PHL
Philadelphia
16 Jun - 23 Jun
$571pp
PHL
Philadelphia
Multiple Airlines
 
1 STOP
STN
London Stansted
STN
London Stansted
Multiple Airlines
 
1 STOP
PHL
Philadelphia
16 Jun - 23 Jun
$572pp
PHL
Philadelphia
Multiple Airlines
 
1 STOP
STN
London Stansted
STN
London Stansted
Multiple Airlines
 
1 STOP
PHL
Philadelphia

Philadelphia Intl to London 2021 flight deals

Cheap flights to London from Philadelphia Intl found for this year
13 Jul - 20 Jul
$552pp
PHL
Philadelphia
TAP AIR PORTUGAL
   
2 STOPS
LGW
London Gatwick
LGW
London Gatwick
TAP AIR PORTUGAL
   
2 STOPS
PHL
Philadelphia
9 Jun - 22 Jun
$570pp
PHL
Philadelphia
Multiple Airlines
 
1 STOP
STN
London Stansted
STN
London Stansted
Multiple Airlines
 
1 STOP
PHL
Philadelphia
16 Jun - 23 Jun
$571pp
PHL
Philadelphia
Multiple Airlines
 
1 STOP
STN
London Stansted
STN
London Stansted
Multiple Airlines
 
1 STOP
PHL
Philadelphia

Non-stop flights to London from Philadelphia Intl

Save time with Philadelphia Intl to London direct flight deals
4 Oct - 3 Nov
$840pp
PHL
Philadelphia
Finnair
Non-Stop
LHR
London Heathrow
LHR
London Heathrow
Finnair
Non-Stop
PHL
Philadelphia
6 Oct - 13 Oct
$841pp
PHL
Philadelphia
Finnair
Non-Stop
LHR
London Heathrow
LHR
London Heathrow
Finnair
Non-Stop
PHL
Philadelphia
6 Oct - 20 Oct
$842pp
PHL
Philadelphia
Finnair
Non-Stop
LHR
London Heathrow
LHR
London Heathrow
Finnair
Non-Stop
PHL
Philadelphia

Last minute flights from Philadelphia Intl to London

Late deals on round-trip flights to London from Philadelphia Intl, departing today and this week
24 May - 1 Jun
$751pp
PHL
Philadelphia
TAP AIR PORTUGAL
   
2 STOPS
LHR
London Heathrow
LHR
London Heathrow
TAP AIR PORTUGAL
   
2 STOPS
PHL
Philadelphia
24 May - 31 May
$761pp
PHL
Philadelphia
Multiple Airlines
     
3 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
     
3 STOPS
PHL
Philadelphia
19 May - 23 May
$765pp
PHL
Philadelphia
Multiple Airlines
     
3 STOPS
STN
London Stansted
STN
London Stansted
Multiple Airlines
 
1 STOP
PHL
Philadelphia

One-way flights to London from Philadelphia Intl

The cheapest one-way flights from Philadelphia Intl to London
5:10 pm - 8:45 am
Multiple Airlines
1 Stop
10h 35m
PHL - LCY
Multiple Airlines
$400
Kiwi.com
5:08 am - 6:20 am
TAP AIR PORTUGAL
2 Stops
20h 12m
PHL - LHR
TAP AIR PORTUGAL
$298
mytrip.com
8:15 am - 11:35 am
TAP AIR PORTUGAL
2 Stops
22h 20m
PHL - LGW
TAP AIR PORTUGAL
$302
mytrip.com

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Philadelphia Intl</span> to <span class="emphasized">London</span> flights.

Flight FAQs

From Philadelphia Intl 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.

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.

What airport do you fly from for flights from Philadelphia to London?

If you book a flight to London from Philadelphia, you will be flying from Philadelphia, which is the city’s only airport. Philadelphia (PHL) is located 7.0 mi from the center of Philadelphia. There are 7 flights from Philadelphia to London per day from 11 different airlines.

Can I find flights from Philadelphia Intl to London for under $600 on Cheapflights?

Yes, there are multiple flights from Philadelphia Intl to London for under $600. The cheapest flight booked recently is on TAP AIR PORTUGAL for just $552, but on average you can expect to pay $590.

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

Cheapflights has at least 20 direct flights from Philadelphia Intl to London under $900. A good price for a nonstop flight from Philadelphia Intl to London is less than $886.

Are there last-minute flights available from Philadelphia Intl to London for under $800?

There are currently 20+ open flights from Philadelphia Intl to London within the next 7 days for less than $800.

What days are nonstop flights available from Philadelphia to London?

You can find nonstop flights on the following days: Sunday, Tuesday, Wednesday.

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 Intl to London?

A quick flight from Philadelphia Intl to London can take about 10h 35m. British Airways provides one of the quickest options available for as low as $862. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

What is the cheapest airline to fly from Philadelphia Intl to London round-trip?

According to our current data, TAP AIR PORTUGAL ($552), offers the cheapest pricing from Philadelphia Intl to London. This flight start at 17% lower than the current average price 3 months from now.

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

One-way options have recently been found by users for as low as $298 on TAP AIR PORTUGAL.

Alternative routes for Philadelphia Intl to London

See prices for flight routes from nearby airports that may be better suited for you.

Destination information for London

Things to know before you go - useful duration and weather info for your trip from Philadelphia Intl to London.
Today's exchange rate
$1 = £0.72
Average temperature for May in London
64.4 °F
Avg rainfall for May in London
2.0 ″

Airports servicing Philadelphia

Airports servicing London

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

Top 10 airlines flying from Philadelphia Intl to London

The chart below displays the airlines Cheapflights users traveling from Philadelphia Intl to London choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
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%

Hourly flight availability from Philadelphia Intl to London

See what time of day planes typically take off from Philadelphia Intl towards London.
Evening 6 PM to midnight 100% of PHL to LON departures
Early morning Midnight to 6 AM 0% of PHL to LON departures
Morning 6 AM to noon 0% of PHL to LON departures
Afternoon Noon to 6 PM 0% of PHL to LON departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from Philadelphia Intl to London
See how many times per day planes take to the skies headed from Philadelphia Intl to London.
Sunday
7 daily flights
Monday
7 daily flights
Tuesday
7 daily flights
Wednesday
7 daily flights
Thursday
7 daily flights
Friday
7 daily flights
Saturday
7 daily flights
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