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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 May or August, booked 56 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
$593 - $935
LON
Temperature
48.2 - 73.4 °F
LON
Rainfall
1.4 - 2.8 inches
Popular in July High demand for flights, 27% potential price rise
Cheapest in May Best time to find cheap flights, 14% potential price drop
Round-trip from $593 From Philadelphia to London
One-way from $255 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 51 days before your planned departure. Booking around this time can save you about 38% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $813 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $886.

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

February is one of the best times of the year to fly to London from Philadelphia. Prices for February average $634 per person but you can even find prices for as low as $394. The most expensive prices can be found in the month of June. Opting for a February flight can save you 66% on your journey compared to booking in February

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 September, October 2020

The best prices found for PHL to LON flights for September, October
19 Oct - 30 Oct
$462pp
PHL
Philadelphia
Multiple Airlines
     
3 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
     
3 STOPS
PHL
Philadelphia
23 Oct - 30 Oct
$485pp
PHL
Philadelphia
Multiple Airlines
     
3 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
     
3 STOPS
PHL
Philadelphia
22 Oct - 3 Dec
$496pp
PHL
Philadelphia
Multiple Airlines
     
3 STOPS
STN
London Stansted
STN
London Stansted
Multiple Airlines
     
3 STOPS
PHL
Philadelphia

Philadelphia to London 2020 flight deals

Cheap flights to London from Philadelphia found for this year
9 Dec - 20 Jan
$361pp
PHL
Philadelphia
Multiple Airlines
   
2 STOPS
LGW
London Gatwick
LGW
London Gatwick
Multiple Airlines
     
3 STOPS
PHL
Philadelphia
9 Dec - 20 Jan
$377pp
PHL
Philadelphia
Multiple Airlines
   
2 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
     
3 STOPS
PHL
Philadelphia
4 Nov - 10 Nov
$413pp
PHL
Philadelphia
Multiple Airlines
     
3 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
     
3 STOPS
PHL
Philadelphia

Non-stop flights to London from Philadelphia

Save time with Philadelphia to London direct flight deals
11 Nov - 1 Dec
$789pp
PHL
Philadelphia
Finnair
Non-Stop
LHR
London Heathrow
LHR
London Heathrow
Finnair
Non-Stop
PHL
Philadelphia
11 Nov - 18 Nov
$791pp
PHL
Philadelphia
Multiple Airlines
Non-Stop
LHR
London Heathrow
LHR
London Heathrow
Iberia
Non-Stop
PHL
Philadelphia
9 Dec - 20 Jan
$792pp
PHL
Philadelphia
Multiple Airlines
Non-Stop
LHR
London Heathrow
LHR
London Heathrow
Iberia
Non-Stop
PHL
Philadelphia

Last minute flights from Philadelphia to London

Late deals on round-trip flights to London from Philadelphia, departing today and this week
2 Oct - 9 Oct
$511pp
PHL
Philadelphia
Multiple Airlines
     
3 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
   
2 STOPS
PHL
Philadelphia
30 Sep - 9 Oct
$520pp
PHL
Philadelphia
Multiple Airlines
     
3 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
   
2 STOPS
PHL
Philadelphia
1 Oct - 12 Nov
$529pp
PHL
Philadelphia
Multiple Airlines
     
3 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
     
3 STOPS
PHL
Philadelphia

One-way flights to London from Philadelphia

The cheapest one-way flights from Philadelphia to London
12:45 pm - 3:05 am
Aer Lingus
1 Stop
9h 20m
PHL - LHR
Aer Lingus
$255
StudentUniverse
12:45 pm - 5:25 am
Aer Lingus
1 Stop
11h 40m
PHL - LCY
Aer Lingus
$258
StudentUniverse
12:45 pm - 2:55 am
Aer Lingus
1 Stop
9h 10m
PHL - LGW
Aer Lingus
$274
StudentUniverse

Related info for your journey

Useful info, stats and facts about Philadelphia to London flights.

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.

Can I find flights from Philadelphia to London for under $400 on Cheapflights?

Yes, there are multiple flights from Philadelphia to London for under $400. The cheapest flight booked recently is on Multiple Airlines for just $361, but on average you can expect to pay $458.

Are there nonstop flights from Philadelphia to London for under $800 on Cheapflights?

Cheapflights has at least 20 direct flights from Philadelphia to London under $800. A good price for a nonstop flight from Philadelphia to London is less than $836.

Are there last-minute flights available from Philadelphia to London for under $600?

There are currently 20+ open flights from Philadelphia to London within the next 7 days for less than $600.

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?

There are many flights that can get you from Philadelphia to London in 9h 10m. Fly via Aer Lingus to get the fastest option.

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

The cheapest airline one-way is Aer Lingus, with whom users have recently found tickets for as low as $255.

Alternative routes for Philadelphia to London

Destination information for London

Things to know before you go. Useful info for your trip from Philadelphia to London
Today's exchange rate
$1 = £0.79
Average temperature for September in London
68.0 °F
Avg rainfall for September in London
1.9 ″

Airports servicing Philadelphia

Airports servicing London

Heathrow (LHR)
Luton (LTN)
Stansted (STN)
City (LCY)
Southend (SEN)
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