Cheap flights from London to Philadelphia

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

All the information you need to plan the best LON to PHL flight in 2021: compare London to Philadelphia flight prices with the expected peak season, weather and rainfall in Philadelphia.
LON - PHL
Price
£320 - £536
PHL
Temperature
7 - 31 °C
PHL
Precipitation
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

Round-trip from

£320

From London to Philadelphia

One-way from

£161

One-way flight from London to Philadelphia

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?

Leaving on a Monday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 118% on the overall cost on flights from London to Philadelphia.

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

Travellers have found it’s best to book a flight 54 days in advance to save up to 38% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 54 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from London to Philadelphia 1-2 weeks in advance for as low as £405, or £497 for flights within the next 24 hours.

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

February is one of the best times of the year to fly to Philadelphia from London. Prices for February average £383 per person but you can even find prices for as low as £277. The most expensive prices can be found in the month of July. Opting for a February flight can save you 40% on your journey compared to booking in February

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

It’s optimal to fly from London to Philadelphia in the afternoon. By choosing this option you can save up to 25% on the cost of your flight, compared to a flight in the evening.

Cheap flights from London to Philadelphia in September, October 2021

The best prices found for LON to PHL flights in September, October
28 Oct - 15 Nov
£300pp
LHR
London Heathrow
Air Canada
   
2 STOPS
PHL
Philadelphia
PHL
Philadelphia
Air Canada
   
2 STOPS
LHR
London Heathrow
10 Oct - 18 Oct
£311pp
LHR
London Heathrow
Air Canada
   
2 STOPS
PHL
Philadelphia
PHL
Philadelphia
Air Canada
   
2 STOPS
LHR
London Heathrow
30 Oct - 16 Nov
£312pp
LHR
London Heathrow
Multiple airlines
   
2 STOPS
PHL
Philadelphia
PHL
Philadelphia
Air Canada
   
2 STOPS
LHR
London Heathrow

London to Philadelphia 2021 flight deals

Cheap flights to Philadelphia from London found for this year
9 Nov - 23 Nov
£272pp
STN
London Stansted
Multiple airlines
   
2 STOPS
PHL
Philadelphia
PHL
Philadelphia
Multiple Airlines
   
2 STOPS
STN
London Stansted
1 Nov - 7 Nov
£282pp
LHR
London Heathrow
Air Canada
   
2 STOPS
PHL
Philadelphia
PHL
Philadelphia
Air Canada
   
2 STOPS
LHR
London Heathrow
17 Nov - 23 Nov
£290pp
LHR
London Heathrow
Air Canada
   
2 STOPS
PHL
Philadelphia
PHL
Philadelphia
Air Canada
   
2 STOPS
LHR
London Heathrow

Direct flights to Philadelphia from London

Save time with London to Philadelphia direct flight deals
1 Feb - 10 Feb
£357pp
LHR
London Heathrow
Multiple airlines
Direct
PHL
Philadelphia
PHL
Philadelphia
Finnair
Direct
LHR
London Heathrow
17 Nov - 23 Nov
£364pp
LHR
London Heathrow
Multiple airlines
Direct
PHL
Philadelphia
PHL
Philadelphia
Finnair
Direct
LHR
London Heathrow
10 Nov - 23 Nov
£366pp
LHR
London Heathrow
Multiple airlines
Direct
PHL
Philadelphia
PHL
Philadelphia
Finnair
Direct
LHR
London Heathrow

Last-minute flights from London to Philadelphia

Late deals on return flights to Philadelphia from London, departing today and this week
25 Sep - 23 Oct
£410pp
LHR
London Heathrow
Virgin Atlantic
   
2 STOPS
PHL
Philadelphia
PHL
Philadelphia
Virgin Atlantic
   
2 STOPS
LHR
London Heathrow
26 Sep - 14 Oct
£410pp
LCY
London City
Virgin Atlantic
   
2 STOPS
PHL
Philadelphia
PHL
Philadelphia
Virgin Atlantic
   
2 STOPS
LCY
London City
24 Sep - 1 Oct
£411pp
LHR
London Heathrow
Virgin Atlantic
   
2 STOPS
PHL
Philadelphia
PHL
Philadelphia
Virgin Atlantic
 
1 STOP
LHR
London Heathrow

One-way flights to Philadelphia from London

The cheapest one-way flights from London to Philadelphia
04:40 - 19:43
Multiple Airlines
2 stops
20h 03m
STN - PHL
Multiple Airlines
£161
Kiwi.com
04:25 - 06:25
Multiple Airlines
2 stops
31h 00m
STN - PHL
Multiple Airlines
£163
Kiwi.com
03:25 - 19:42
Multiple Airlines
2 stops
21h 17m
STN - PHL
Multiple Airlines
£165
Kiwi.com

Related info for your journey

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

Flight FAQs

From London to Philadelphia

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

If you book a flight to Philadelphia from London, you will be flying to Philadelphia, which is the city’s only airport. Philadelphia (PHL) is located 7.0 mi from the centre of Philadelphia. There are 7 flights from London to Philadelphia per day from 14 different airlines.

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.

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.

Can I find flights from London to Philadelphia for under £300 on Cheapflights?

Yes, there are multiple flights from London to Philadelphia for under £300. The cheapest flight booked recently is on Air Canada for just £266, but on average you can expect to pay £303.

Are there direct flights from London to Philadelphia for under £400 on Cheapflights?

Cheapflights has 20 direct flights from London to Philadelphia under £400. A good price for a direct flight from London to Philadelphia is less than £384.

Are there last-minute flights available from London to Philadelphia for under £500?

There are currently 20+ open flights from London to Philadelphia within the next 7 days for less than £500.

What is the cheapest airline to fly from London to Philadelphia return?

According to our current data, Air Canada (£266), offers the cheapest pricing from London to Philadelphia. This flight start at 30% lower than the current average price 3 months from now.

COVID Restrictions

View COVID Travel Restrictions for Philadelphia, PA

Do I need a COVID test to fly to Philadelphia from London?

Information is based on travel restrictions from London to Philadelphia

Most visitors from London will not be allowed to enter Philadelphia.

COVID-19 testing requirements
Visitors from London must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Philadelphia.

Quarantine requirements
Visitors from London are not required to quarantine after entering Philadelphia.

Do I need a test to fly back to London from Philadelphia?

Returning to London from Philadelphia

COVID-19 testing requirements
Visitors from Philadelphia must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to London.

Quarantine requirements
Visitors from Philadelphia are not required to quarantine after entering London.

Hide COVID Travel Restrictions for Philadelphia, PA

Alternative routes for London to Philadelphia

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

Destination information for Philadelphia

Things to know before you go - useful duration and weather info for your trip from London to Philadelphia.
Today's exchange rate
£1 = $1.39
Average temperature for September in Philadelphia
27.0 °C
Avg rainfall for September in Philadelphia
109.0 mm

Airports servicing London

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

Airports servicing Philadelphia

Top 10 airlines flying from London to Philadelphia

The chart below displays the airlines Cheapflights users travelling from London to Philadelphia 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
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

Hourly flight availability from London to Philadelphia

See what time of day planes typically take off from London towards Philadelphia.
Morning 6 AM to midday 100% of flight departures
Early morning Midnight to 6 AM 0% of flight departures
Afternoon Midday to 6 PM 0% of flight departures
Evening 6 PM to midnight 0% of flight departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from London to Philadelphia
See how many times per day planes take to the skies headed from London to Philadelphia.
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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