Cheap flights from Heathrow to Philadelphia Intl

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The best prices from Heathrow to Philadelphia Intl are usually found in February or March, booked 41 days in advance, depart on a Tuesday or Thursday and return on a Tuesday

How to find the cheapest flight from
Heathrow (LHR) to Philadelphia Intl (PHL)

LHR - PHL
Price
£302 - £543
PHL
Temperature
7 - 31 °C
PHL
Rainfall
60 - 114 mm

Popular in

July

High demand for flights, 30% potential price rise

Cheapest in

February

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

Average price

£317

Average for round-trip flights in March 2021

Round-trip from

£302

From Heathrow to Philadelphia Intl

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 Heathrow to Philadelphia Intl?

It’s generally more expensive to depart on a Monday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

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

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 Heathrow to Philadelphia Intl 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 £401. For sooner than that we have options available in the next 3 days from £491.

What is the cheapest month to fly from Heathrow to Philadelphia Intl?

The best pricing can be found in the month of February. Prices to Philadelphia Intl from Heathrow average £379. You can even find prices in February for less than £379, as users have found deals to Philadelphia Intl from as low as £274. The month of July appears to be one of the more expensive times to travel to Philadelphia Intl from Heathrow. Flying in the targeted month can save you up to 40%.

When is the cheapest time to fly from Heathrow to Philadelphia Intl (LHR - PHL)?

A simple way to save on the total cost of your ticket is to fly from Heathrow to Philadelphia Intl at midday. If you’re flexible enough to do this you can expect to save up to 10% on your trip compared to booking a flight in the evening.

Cheap flights from Heathrow to Philadelphia Intl in March, April 2021

6 Apr - 20 Apr
£286pp
LHR
London Heathrow
Multiple airlines
   
2 STOPS
PHL
Philadelphia
PHL
Philadelphia
Air Canada
   
2 STOPS
LHR
London Heathrow
9 Apr - 18 May
£294pp
LHR
London Heathrow
Multiple airlines
   
2 STOPS
PHL
Philadelphia
PHL
Philadelphia
Air Canada
 
1 STOP
LHR
London Heathrow
9 Apr - 18 May
£299pp
LHR
London Heathrow
SWISS
   
2 STOPS
PHL
Philadelphia
PHL
Philadelphia
SWISS
   
2 STOPS
LHR
London Heathrow

Heathrow to Philadelphia Intl 2021 flight deals

25 Aug - 5 Sep
£281pp
LHR
London Heathrow
Multiple airlines
 
1 STOP
PHL
Philadelphia
PHL
Philadelphia
Air Canada
 
1 STOP
LHR
London Heathrow
9 May - 23 May
£282pp
LHR
London Heathrow
Multiple airlines
 
1 STOP
PHL
Philadelphia
PHL
Philadelphia
Air Canada
 
1 STOP
LHR
London Heathrow
13 Jul - 23 Aug
£284pp
LHR
London Heathrow
Multiple airlines
   
2 STOPS
PHL
Philadelphia
PHL
Philadelphia
Air Canada
 
1 STOP
LHR
London Heathrow

Direct flights to Philadelphia Intl from Heathrow

17 May - 31 May
£360pp
LHR
London Heathrow
Finnair
Direct
PHL
Philadelphia
PHL
Philadelphia
Finnair
Direct
LHR
London Heathrow
1 Jun - 23 Jun
£372pp
LHR
London Heathrow
Finnair
Direct
PHL
Philadelphia
PHL
Philadelphia
Finnair
Direct
LHR
London Heathrow
29 Mar - 6 Apr
£386pp
LHR
London Heathrow
British Airways
Direct
PHL
Philadelphia
PHL
Philadelphia
British Airways
Direct
LHR
London Heathrow

Last-minute flights from Heathrow to Philadelphia Intl

11 Mar - 25 Mar
£310pp
LHR
London Heathrow
Multiple airlines
   
2 STOPS
PHL
Philadelphia
PHL
Philadelphia
Air Canada
   
2 STOPS
LHR
London Heathrow
11 Mar - 25 Mar
£331pp
LHR
London Heathrow
United Airlines
 
1 STOP
PHL
Philadelphia
PHL
Philadelphia
United Airlines
   
2 STOPS
LHR
London Heathrow
9 Mar - 13 Mar
£600pp
LHR
London Heathrow
American Airlines
 
1 STOP
PHL
Philadelphia
PHL
Philadelphia
American Airlines
 
1 STOP
LHR
London Heathrow

One-way flights to Philadelphia Intl from Heathrow

14:40 - 16:59
SWISS
2 stops
31h 19m
LHR - PHL
SWISS
£272
swiss
07:05 - 15:00
Brussels Airlines
2 stops
35h 55m
LHR - PHL
Brussels Airlines
02:30 - 19:00
Delta
2 stops
20h 30m
LHR - PHL
Delta
£282
Delta

Related info for your journey

Flight FAQs

From Heathrow to Philadelphia Intl

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

New policies can now be found on Delta to help keep travellers safe while flying. New policies for travellers booking flights from London Heathrow to Philadelphia include masks being provided and required on board, daily cleaning and sanitisation, use of HEPA filters, pre-flight testing for antibodies and symptoms, and socially-distanced seating (for a limited time). Keep in mind that policies will vary by airline.

Which airlines flying from London Heathrow 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 Heathrow to Philadelphia have implemented new flexible cancellation policies.

Can I find flights from Heathrow to Philadelphia Intl for under £286 on Cheapflights?

Yes, there are multiple flights from Heathrow to Philadelphia Intl for under £286. The cheapest flight booked recently is on Multiple Airlines for just £281, but on average you can expect to pay £295.

Are there direct flights from Heathrow to Philadelphia Intl for under £430 on Cheapflights?

Cheapflights has 20 direct flights from Heathrow to Philadelphia Intl under £430. A good price for a direct flight from Heathrow to Philadelphia Intl is less than £408.

Are there last-minute flights available from Heathrow to Philadelphia Intl for under £358?

There are currently 20+ open flights from Heathrow to Philadelphia Intl within the next 7 days for less than £358.

What days are direct flights available from Heathrow to Philadelphia?

Direct flights are available for this route on the following days: Sunday, Friday, Saturday.

Does it rain more in Heathrow or Philadelphia?

Expected rainfall in Heathrow is more than in Philadelphia. You can expect this to be the case over the next 22 days.

Is Heathrow weather warmer or cooler than Philadelphia?

Expect the weather to be around 31 °C on average in July. As the temperature peaks, try to get your plans done early, as flight price and availability will have an impact on your travels. The climate in Philadelphia is generally hotter than in Heathrow.

How long does is the flight from Heathrow to Philadelphia Intl?

For as low as £326, Lufthansa can have you in Philadelphia Intl from Heathrow in 11h 40m. Both multi-stop and direct flights can be found to your destination and back.

What are the cheapest airlines to flying from Heathrow to Philadelphia Intl return?

Flying on Air Canada is currently your cheapest option to Philadelphia Intl, with prices starting at £298. Additional return tickets that might be worth considering are offered by SWISS and Lufthansa, with the lowest prices starting at £299 and £310, respectively. Air Canada is priced at 21% lower than the current average price of a flight leaving 3 months from now.

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

The cheapest airline one-way is Air Canada, with whom users have recently found tickets for as low as £260. However, be on the lookout for offers from SWISS and Brussels Airlines, as they are both options that can get you from Heathrow to Philadelphia Intl for a low price.

Alternative routes for Heathrow to Philadelphia Intl

Destination information for Philadelphia Intl

Today's exchange rate
£1 = $1.40
Average temperature for March in Philadelphia Intl
13.0 °C
Avg rainfall for March in Philadelphia Intl
106.0 mm

Airports servicing London

Airports servicing Philadelphia

Top 10 airlines flying from Heathrow to Philadelphia Intl

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
British Airways
£363 £616 No cancel fee 70%
Search British Airways flights
American Airlines
£424 £645 No cancel fee 71%
Search American Airlines flights
Icelandair
£470 £675 No cancel fee 76%
Search Icelandair flights
Finnair
£409 £689 No cancel fee 76%
Search Finnair flights
Iberia
£418 £703 No cancel fee 77%
Search Iberia flights
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