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Cheap flights from Philadelphia (PHL) to Heathrow (LHR)

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The best prices from Philadelphia to Heathrow are usually found in February or January, booked 38 days in advance, depart on a Tuesday or Monday and return on a Tuesday

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

PHL - LHR
Price
$507 - $955
LHR
Temperature
46.4 - 75.2 °F
LHR
Rainfall
1.5 - 2.6 inches

Popular in

June

High demand for flights, 29% potential price rise

Cheapest in

February

Best time to find cheap flights, 25% potential price drop

Round-trip from

$507

From Philadelphia to Heathrow

One-way from

$425

One-way flight from Philadelphia to Heathrow

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 Heathrow?

Users have found that flying from Philadelphia to Heathrow on a Saturday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

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

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 61 days in advance, which can save you up to 44% on flights from Philadelphia to Heathrow compared to booking the week you need them. Waiting 61 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 $910. For sooner than that we have options available in the next 3 days from $1,146.

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

Our data shows that October tends to be the cheapest month to fly to Heathrow from Philadelphia. Users have commonly found prices around $714 for the month, but tickets can be as low as $445. Due to multiple factors, prepare for potentially higher prices in July.

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

It’s optimal to fly from Philadelphia to Heathrow in the evening. By choosing this option you can save up to 12% on the cost of your flight, compared to a flight in the morning.

Cheap flights from Philadelphia to Heathrow in January, February 2021

The best prices found for PHL to LHR flights for January, February
20 Feb - 27 Feb
$572pp
PHL
Philadelphia
Multiple Airlines
   
2 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
   
2 STOPS
PHL
Philadelphia
20 Feb - 27 Feb
$581pp
PHL
Philadelphia
Multiple Airlines
   
2 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
     
3 STOPS
PHL
Philadelphia
13 Feb - 20 Feb
$584pp
PHL
Philadelphia
Multiple Airlines
   
2 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
     
3 STOPS
PHL
Philadelphia

Philadelphia to Heathrow 2021 flight deals

Cheap flights to Heathrow from Philadelphia found for this year
23 Mar - 31 Mar
$540pp
PHL
Philadelphia
Multiple Airlines
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
 
1 STOP
PHL
Philadelphia
17 Mar - 31 Mar
$541pp
PHL
Philadelphia
Multiple Airlines
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
 
1 STOP
PHL
Philadelphia
22 Mar - 31 Mar
$543pp
PHL
Philadelphia
Multiple Airlines
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
 
1 STOP
PHL
Philadelphia

Non-stop flights to Heathrow from Philadelphia

Save time with Philadelphia to Heathrow direct flight deals
21 Mar - 31 Mar
$669pp
PHL
Philadelphia
British Airways
Non-Stop
LHR
London Heathrow
LHR
London Heathrow
British Airways
Non-Stop
PHL
Philadelphia
12 May - 2 Jun
$671pp
PHL
Philadelphia
British Airways
Non-Stop
LHR
London Heathrow
LHR
London Heathrow
British Airways
Non-Stop
PHL
Philadelphia
16 May - 8 Jun
$672pp
PHL
Philadelphia
British Airways
Non-Stop
LHR
London Heathrow
LHR
London Heathrow
British Airways
Non-Stop
PHL
Philadelphia

Last minute flights from Philadelphia to Heathrow

Late deals on round-trip flights to Heathrow from Philadelphia, departing today and this week
29 Jan - 31 Jan
$752pp
PHL
Philadelphia
Multiple Airlines
     
3 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
   
2 STOPS
PHL
Philadelphia
27 Jan - 11 Feb
$772pp
PHL
Philadelphia
Multiple Airlines
   
2 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
     
3 STOPS
PHL
Philadelphia
29 Jan - 31 Jan
$794pp
PHL
Philadelphia
Multiple Airlines
     
3 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
 
1 STOP
PHL
Philadelphia

One-way flights to Heathrow from Philadelphia

The cheapest one-way flights from Philadelphia to Heathrow
8:09 am - 4:00 am
Multiple Airlines
2 Stops
38h 51m
PHL - LHR
Multiple Airlines
$425
Kiwi.com
12:48 pm - 1:50 am
American Airlines
1 Stop
32h 02m
PHL - LHR
American Airlines
3:35 pm - 1:20 am
British Airways
1 Stop
28h 45m
PHL - LHR
British Airways

Related info for your journey

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

Flight FAQs

From Philadelphia to Heathrow

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

Delta is one of the many airlines that have implemented additional safety measures to control the spread of COVID-19. Some of the new policies that have been implemented to accommodate travelers flying from Philadelphia to London Heathrow are improved sanitation, HEPA filters, mask requirements, social distance seating (for a limited time), and pre-flight testing for antibodies and symptoms. Policies will vary by airline.

Which airlines flying from Philadelphia to London Heathrow have flexible cancellations due to COVID-19?

Some of our airline partners flying from Philadelphia to London Heathrow have new flexible policies in place due to COVID-19. British Airways, American Airlines, and Aer Lingus are some of the carriers where you may find flexible cancellation policies. You can use our site to filter for airlines like British Airways with this kind of flexibility.

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

Yes, there are multiple flights from Philadelphia to Heathrow for under $600. The cheapest flight booked recently is on Multiple Airlines for just $540, but on average you can expect to pay $596.

Are there nonstop flights from Philadelphia to Heathrow for under $700 on Cheapflights?

Cheapflights has at least 20 direct flights from Philadelphia to Heathrow under $700. A good price for a nonstop flight from Philadelphia to Heathrow is less than $714.

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

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

What days are nonstop flights available from Philadelphia to Heathrow?

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

Does it rain more in Philadelphia or Heathrow?

When traveling, it's generally smart to pack in preparation for rain or any other conditions that may arise. The rainfall in Philadelphia is roughly greater than that of Heathrow. You can assume this to be the case over the next 16 days.

Is Philadelphia weather warmer or cooler than Heathrow?

We forecast the temperature to be around the 88 °F's in July, on average. The temperature in Heathrow is generally colder than in Philadelphia. Book flights in a timely manner in correlation to your departure date.

How long is the flight from Philadelphia to Heathrow?

Departing from Philadelphia to Heathrow will take you 6h 50m. This flight may include one or multiple stops.

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

Currently priced at $646, British Airways will fly you from Philadelphia to Heathrow and back. In addition to British Airways, many other airlines offer competitively priced options for your trip. British Airways is priced at 4% lower than the current average price of a flight leaving 3 months from now.

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

$516 is the cheapest one-way deal found within the past few days, from British Airways. You may also be able to find cheap deals on American Airlines, with prices from $528.

Alternative routes for Philadelphia to Heathrow

Destination information for Heathrow

Things to know before you go. Useful info for your trip from Philadelphia to Heathrow
Today's exchange rate
$1 = £0.74
Average temperature for January in Heathrow
48.2 °F
Avg rainfall for January in Heathrow
2.1 ″

Airports servicing Philadelphia

Airports servicing London

Top 10 airlines flying from Philadelphia to Heathrow

The chart below displays the airlines Cheapflights users traveling from Philadelphia to Heathrow 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%
Iberia
$475 $735 No cancel fee 77%
British Airways
$472 $753 No cancel fee 70%
Icelandair
$407 $759 No cancel fee 76%
United Airlines
$401 $810 No cancel fee 69%
Finnair
$463 $813 No cancel fee 76%
Lufthansa
$513 $826 No cancel fee 76%
American Airlines
$464 $890 No cancel fee 71%
Aer Lingus
$539 $912 No cancel fee N/A

Hourly flight availability from Philadelphia to Heathrow

Evening 6 PM to midnight 100% of PHL to LHR departures
Early morning Midnight to 6 AM 0% of PHL to LHR departures
Morning 6 AM to noon 0% of PHL to LHR departures
Afternoon Noon to 6 PM 0% of PHL to LHR departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from Philadelphia to Heathrow
Sunday
2 daily flights
Monday
2 daily flights
Tuesday
0 flights
Wednesday
0 flights
Thursday
2 daily flights
Friday
0 flights
Saturday
0 flights
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