Cheap flights from London to Philadelphia

Return
Economy
London (LON)
Philadelphia (PHL)
Depart
Return
Any month
Compare vs Cheapflights |

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
£321 - £537
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

£378

Average for round-trip flights in April 2021

Round-trip from

£321

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?

Monday is generally a great day to depart. Flying on this day could help you save up to 118%.

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

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 54 days in advance, which can save you up to 38% on flights from London to Philadelphia compared to booking the week you need them. Waiting 54 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at £406. For sooner than that we have options available in the next 3 days from £498.

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

February can be a great time to fly to Philadelphia from London with a flight ticket averaging about £383. Cheapflights users have found deals in the month of February for as cheap as £278. The most expensive prices can be found in the month of July.

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

A simple way to save on the total cost of your ticket is to fly from London to Philadelphia in the afternoon. If you’re flexible enough to do this you can expect to save up to 25% on your trip compared to booking a flight in the evening.

Cheap flights from London to Philadelphia in April, May 2021

The best prices found for LON to PHL flights in April, May
17 May - 31 May
£317pp
LTN
London Luton
Multiple airlines
 
1 STOP
PHL
Philadelphia
PHL
Philadelphia
Multiple Airlines
 
1 STOP
LTN
London Luton
18 May - 31 May
£318pp
STN
London Stansted
Multiple airlines
 
1 STOP
PHL
Philadelphia
PHL
Philadelphia
Multiple Airlines
 
1 STOP
STN
London Stansted
18 May - 30 May
£328pp
STN
London Stansted
Multiple airlines
 
1 STOP
PHL
Philadelphia
PHL
Philadelphia
Multiple Airlines
 
1 STOP
STN
London Stansted

London to Philadelphia 2021 flight deals

Cheap flights to Philadelphia from London found for this year
29 Jun - 13 Jul
£271pp
LHR
London Heathrow
Multiple airlines
   
2 STOPS
PHL
Philadelphia
PHL
Philadelphia
Lufthansa
 
1 STOP
LHR
London Heathrow
25 Sep - 2 Oct
£276pp
LHR
London Heathrow
Multiple airlines
 
1 STOP
PHL
Philadelphia
PHL
Philadelphia
Air Canada
 
1 STOP
LHR
London Heathrow
17 Jun - 6 Jul
£277pp
LHR
London Heathrow
Multiple airlines
 
1 STOP
PHL
Philadelphia
PHL
Philadelphia
Air Canada
 
1 STOP
LHR
London Heathrow

Direct flights to Philadelphia from London

Save time with London to Philadelphia direct flight deals
9 Jun - 20 Sep
£356pp
LHR
London Heathrow
British Airways
Direct
PHL
Philadelphia
PHL
Philadelphia
British Airways
Direct
LHR
London Heathrow
1 Sep - 15 Sep
£357pp
LHR
London Heathrow
Finnair
Direct
PHL
Philadelphia
PHL
Philadelphia
Finnair
Direct
LHR
London Heathrow
7 Jun - 7 Jul
£360pp
LHR
London Heathrow
Finnair
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
23 Apr - 30 Apr
£704pp
LHR
London Heathrow
Delta
   
2 STOPS
PHL
Philadelphia
PHL
Philadelphia
Delta
 
1 STOP
LHR
London Heathrow
23 Apr - 30 Apr
£707pp
LHR
London Heathrow
Iberia
Direct
PHL
Philadelphia
PHL
Philadelphia
Iberia
Direct
LHR
London Heathrow
23 Apr - 30 Apr
£802pp
LCY
London City
KLM
   
2 STOPS
PHL
Philadelphia
PHL
Philadelphia
KLM
   
2 STOPS
LCY
London City

One-way flights to Philadelphia from London

The cheapest one-way flights from London to Philadelphia
10:05 - 17:29
Air Canada
2 stops
36h 24m
LHR - PHL
Air Canada
£249
Air Canada
06:00 - 08:12
United Airlines
2 stops
55h 12m
LHR - PHL
United Airlines
£273
United
02:00 - 14:07
Austrian Airlines
2 stops
17h 07m
LHR - PHL
Austrian Airlines
£374
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

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 for under £290 on Cheapflights?

Yes, there are multiple flights from London to Philadelphia for under £290. The cheapest flight booked recently is on Multiple Airlines for just £271, but on average you can expect to pay £284.

Are there direct flights from London to Philadelphia for under £363 on Cheapflights?

Cheapflights has 20 direct flights from London to Philadelphia under £363. A good price for a direct flight from London to Philadelphia is less than £386.

Are there last-minute flights available from London to Philadelphia for under £725?

There are currently 3+ open flights from London to Philadelphia within the next 7 days for less than £725.

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?

Airlines like Lufthansa and British Airways fly from London to Philadelphia in about 11h 40m. The time it takes to get you to your destination can typically vary by up to 30m. Both multi-stop and direct flights can be found to your destination and back.

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

According to our current data, Lufthansa (£288), and Air Canada (£296) offers the cheapest pricing from London to Philadelphia. Users have found that Lufthansa is 25% cheaper than the other options available to this destination.

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

The cheapest airline one-way is Air Canada, with whom users have recently found tickets for as low as £249. However, be on the lookout for offers from United Airlines and Austrian Airlines, as they are both options that can get you from London to Philadelphia for a low price.

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 = $1.38
Average temperature for April in Philadelphia
19.0 °C
Avg rainfall for April in Philadelphia
85.0 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

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.
Afternoon Midday to 6 PM 100% of flight departures
Early morning Midnight to 6 AM 0% of flight departures
Morning 6 AM to midday 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
Home North America USA Pennsylvania Philadelphia Cheap flights from London to Philadelphia
  • Return
  • One-way
  • Multi-city
  • Economy
  • Premium Economy
  • Business
  • First
  • Multiple
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First