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$310 Find cheap flights from Philadelphia to London Heathrow Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Philadelphia to Heathrow departing on 7/30. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Mon 7/1
Mon 7/8

Search hundreds of travel sites at once for deals on flights to London Heathrow Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Philadelphia to London.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Philadelphia to London.
In the last 7 days travelers have searched 42,335,261 times on KAYAK, and here is why:

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Cheap flight deals from Philadelphia to Heathrow (PHL-LHR)

 
These are the cheapest deals for flights from Philadelphia to Heathrow currently on KAYAK along with options from the most popular airlines KAYAK users selected for this route. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Philadelphia to Heathrow

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Philadelphia to Heathrow.

Recent one-way flight deals from Philadelphia to Heathrow

Only flying one-way? Below are some of the best one-way flight deals from Philadelphia to Heathrow found on KAYAK recently.

Recent last minute flight deals from Philadelphia to Heathrow

Leaving soon but still want a bargain? Check out these latest deals for last minute flights from Philadelphia to Heathrow.

Recent direct flight deals from Philadelphia to Heathrow

The latest deals for direct flights from Philadelphia to Heathrow so you can sit back and relax without the need for a layover.

Cheap bus & train deals from Philadelphia to Heathrow

Find recent round-trip train or bus tickets from Philadelphia to Heathrow.

All round-trip flight deals to Heathrow

The cheapest plane tickets to Heathrow found on KAYAK recently.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
6:30 pm - 6:40 amPHL-LHR
7h 10mnonstop
8:20 am - 4:20 pmLHR-PHL
13h 00m1 stop
$568British Airways
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Mon, Sep 23 - Tue, Oct 1
6:40 pm - 12:40 pmPHL-LHR
13h 00m1 stop
6:50 am - 12:15 pmLHR-PHL
10h 25m1 stop
$570American Airlines
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Wed, Oct 16 - Thu, Nov 21
6:40 pm - 9:05 amPHL-LHR
9h 25m1 stop
7:40 am - 4:20 pmLHR-PHL
13h 40m1 stop
$571American Airlines
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Sun, Sep 22 - Fri, Oct 4
6:30 pm - 6:40 amPHL-LHR
7h 10mnonstop
8:20 am - 4:20 pmLHR-PHL
13h 00m1 stop
$576British Airways
Find Deal
Wed, Oct 2 - Tue, Oct 8
5:35 pm - 10:50 amPHL-LHR
12h 15m1 stop
1:40 pm - 4:35 pmLHR-PHL
7h 55mnonstop
$605Iberia
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Wed, Oct 2 - Fri, Oct 11
9:10 pm - 3:25 pmPHL-LHR
13h 15m1 stop
9:45 am - 12:45 pmLHR-PHL
8h 00mnonstop
$616Finnair
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Mon, Sep 30 - Fri, Oct 11
6:30 pm - 6:40 amPHL-LHR
7h 10mnonstop
7:25 pm - 1:10 pmLHR-PHL
22h 45m1 stop
$625Finnair
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Mon, Sep 30 - Mon, Oct 7
6:30 pm - 6:40 amPHL-LHR
7h 10mnonstop
6:15 am - 1:50 pmLHR-PHL
12h 35m1 stop
$631Iberia
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Sun, Sep 29 - Sun, Oct 6
8:40 pm - 11:10 amPHL-LHR
9h 30m1 stop
1:25 pm - 7:10 pmLHR-PHL
10h 45m1 stop
$666Aer Lingus
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Thu, Sep 12 - Mon, Sep 16
8:55 pm - 1:55 pmPHL-LHR
12h 00m1 stop
1:25 pm - 7:25 pmLHR-PHL
11h 00m1 stop
$670Aer Lingus
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Wed, Sep 11 - Tue, Sep 24
10:59 pm - 11:55 amPHL-LHR
31h 56m2 stops
Tue, Jul 30
10:59 pm - 11:55 amPHL-LHR
55h 56m2 stops
Tue, Jul 9
8:55 pm - 1:55 pmPHL-LHR
12h 00m1 stop
$482Aer Lingus
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Wed, Jul 31
8:55 pm - 9:35 pmPHL-LHR
19h 40m1 stop
$494Aer Lingus
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Wed, Jul 3
10:50 pm - 10:50 amPHL-LHR
7h 00mnonstop
$569American Airlines
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Fri, Oct 4
7:40 pm - 7:45 amPHL-LHR
7h 05mnonstop
$570American Airlines
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Fri, Sep 27
10:55 pm - 10:50 amPHL-LHR
6h 55mnonstop
$577Iberia
Find Deal
Mon, Sep 2
10:35 pm - 10:30 amPHL-LHR
6h 55mnonstop
$588Iberia
Find Deal
Tue, Jul 30
7:30 pm - 7:45 amPHL-LHR
7h 15mnonstop
$601British Airways
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Tue, Sep 3
10:25 pm - 10:20 amPHL-LHR
6h 55mnonstop
$610British Airways
Find Deal
Wed, Aug 7
10:05 am - 6:30 amPHL-LHR
15h 25m1 stop
9:30 am - 9:33 pmLHR-PHL
17h 03m1 stop
$830Air Canada
Find Deal
Wed, Jun 5 - Tue, Jun 11
7:40 pm - 7:45 amPHL-LHR
7h 05mnonstop
9:45 am - 12:40 pmLHR-PHL
7h 55mnonstop
$842British Airways
Find Deal
Tue, Jun 4 - Fri, Jun 14
3:40 pm - 8:00 amPHL-LHR
11h 20m1 stop
6:10 am - 1:10 pmLHR-PHL
12h 00m1 stop
$864American Airlines
Find Deal
Mon, Jun 3 - Sun, Jun 9
3:40 pm - 8:00 amPHL-LHR
11h 20m1 stop
9:45 am - 12:40 pmLHR-PHL
7h 55mnonstop
$884American Airlines
Find Deal
Mon, Jun 3 - Sun, Jun 9
7:40 pm - 7:45 amPHL-LHR
7h 05mnonstop
7:25 pm - 1:10 pmLHR-PHL
22h 45m1 stop
$978Finnair
Find Deal
Sun, Jun 2 - Sat, Jun 8
10:30 am - 10:40 pmPHL-LHR
31h 10m2 stops
9:10 pm - 7:10 pmLHR-PHL
27h 00m1 stop
$1,426Aer Lingus
Find Deal
Thu, Jun 6 - Thu, Jun 20
7:40 pm - 7:45 amPHL-LHR
7h 05mnonstop
9:45 am - 12:40 pmLHR-PHL
7h 55mnonstop
$1,490Finnair
Find Deal
Mon, Jun 3 - Sun, Jun 9
8:40 pm - 5:20 pmPHL-LHR
15h 40m1 stop
10:25 pm - 7:10 pmLHR-PHL
25h 45m1 stop
$1,625Aer Lingus
Find Deal
Sun, Jun 2 - Fri, Jun 7
7:40 pm - 7:45 amPHL-LHR
7h 05mnonstop
10:05 am - 5:44 pmLHR-PHL
12h 39m1 stop
$1,657Iberia
Find Deal
Tue, Jun 4 - Tue, Jun 11
7:40 pm - 7:45 amPHL-LHR
7h 05mnonstop
10:05 am - 5:44 pmLHR-PHL
12h 39m1 stop
$1,661Iberia
Find Deal
Tue, Jun 4 - Tue, Jun 11
10:50 pm - 10:50 amPHL-LHR
7h 00mnonstop
1:40 pm - 4:35 pmLHR-PHL
7h 55mnonstop
$599British Airways
Find Deal
Tue, Oct 1 - Fri, Oct 11
6:30 pm - 6:40 amPHL-LHR
7h 10mnonstop
1:40 pm - 4:35 pmLHR-PHL
7h 55mnonstop
$607British Airways
Find Deal
Wed, Oct 2 - Fri, Oct 11
10:50 pm - 10:50 amPHL-LHR
7h 00mnonstop
1:00 pm - 3:55 pmLHR-PHL
7h 55mnonstop
$637Finnair
Find Deal
Wed, Oct 2 - Tue, Oct 8
6:30 pm - 6:40 amPHL-LHR
7h 10mnonstop
1:10 pm - 5:30 pmLHR-PHL
8h 20mnonstop
$644Iberia
Find Deal
Mon, Oct 14 - Mon, Oct 28
10:20 pm - 9:20 amPHL-LHR
7h 00mnonstop
10:15 am - 1:30 pmLHR-PHL
8h 15mnonstop
$649Finnair
Find Deal
Mon, Oct 28 - Sun, Nov 3
7:40 pm - 7:45 amPHL-LHR
7h 05mnonstop
9:45 am - 12:45 pmLHR-PHL
8h 00mnonstop
$650British Airways
Find Deal
Thu, Sep 19 - Tue, Sep 24
7:40 pm - 7:45 amPHL-LHR
7h 05mnonstop
1:40 pm - 4:35 pmLHR-PHL
7h 55mnonstop
$651British Airways
Find Deal
Mon, Sep 23 - Mon, Sep 30
10:50 pm - 10:50 amPHL-LHR
7h 00mnonstop
1:00 pm - 3:55 pmLHR-PHL
7h 55mnonstop
$739American Airlines
Find Deal
Wed, Sep 4 - Sat, Sep 28
10:55 pm - 10:50 amPHL-LHR
6h 55mnonstop
9:45 am - 12:45 pmLHR-PHL
8h 00mnonstop
$742Iberia
Find Deal
Wed, Aug 28 - Fri, Sep 6
10:50 pm - 10:50 amPHL-LHR
7h 00mnonstop
11:00 am - 1:55 pmLHR-PHL
7h 55mnonstop
$889American Airlines
Find Deal
Mon, Aug 5 - Mon, Aug 19

Flights from Philadelphia to Heathrow - Travel Insights & Trends

Get data-powered insights and trends into flights from Philadelphia to Heathrow to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Philadelphia to London Heathrow Airport?

The average price of all flights from Philadelphia to London Heathrow Airport clicked on KAYAK for each day over the last 12 months.
If your flying dates are flexible, you should consider flying to London Heathrow Airport on a Wednesday, as we generally find the cheapest rates on that day for this route. On the other hand, Saturday is the most expensive day to fly from Philadelphia to London Heathrow Airport. For your return ticket, we recommend flying on a Wednesday and avoiding Mondays for the best deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Philadelphia to London Heathrow Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Philadelphia to London Heathrow Airport is November, where tickets cost $694 on average. On the other hand, the most expensive months are June and July, where the average cost of tickets is $1,266 and $1,161 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Philadelphia to London Heathrow Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Philadelphia to London Heathrow Airport, you should book around 5 days before departure. For the absolute cheapest price, our data suggests you should book 10 days before departure.

Which airlines provide the cheapest flights from Philadelphia to London Heathrow Airport?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The cheapest return flight ticket from Philadelphia to London Heathrow Airport found by KAYAK users in the last 72 hours was for $568 on British Airways, followed by American Airlines ($570). One-way flight deals have also been found from as low as $357 on JetBlue and from $439 on United Airlines.

Which airlines fly non-stop between Philadelphia and London Heathrow Airport?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from Philadelphia to London Heathrow Airport.
There are 2 airlines that fly nonstop from Philadelphia to London Heathrow Airport. They are American Airlines and British Airways. The cheapest airline for this route is American Airlines, with the best one-way deal found costing $593. On average, the best prices for this route can be found at British Airways.

How many flights are there between Philadelphia and London Heathrow Airport per day?

Each day, there are 7 nonstop flights that take off from Philadelphia and land in London Heathrow Airport, with an average flight time of 7h 11m. The most common departure time is 6:00 pm and most flights take off in the evening. Each week, there are 49 flights and there are the same amount of flights each day 7.

Which cabin class options are there for flights between Philadelphia and London Heathrow Airport?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There are 4 cabin class options for the route. These are First, Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

How long does a flight from Philadelphia to London Heathrow Airport take?

A direct flight to London Heathrow Airport will take on average 6h 55m to travel the 3,533 miles flying distance from Philadelphia.

What’s the earliest departure time from Philadelphia to London Heathrow Airport?

Early birds can take the earliest flight from Philadelphia at 6:30 pm and will be landing in London Heathrow Airport at 6:40 am.

What’s the latest departure time from Philadelphia to London Heathrow Airport?

If you prefer to fly at night, the latest flight from Philadelphia to London Heathrow Airport jets off at 10:35 pm and lands at 10:30 am.

Good to know

Low season

February

High season

June

Cheapest flight

$310
Best time to beat the crowds with an average 16% drop in price.
Most popular time to fly with an average 40% increase in price.
Flight from Philadelphia to London Heathrow Airport

When to book flights from Philadelphia to Heathrow

Are your dates flexible? Find out the best times to travel from Philadelphia to Heathrow based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Philadelphia to London Heathrow Airport flights

  • Can I fly nonstop from PHL to Heathrow?

    Several major airlines offer nonstop flights from Philadelphia International Airport (PHL) to London’s Heathrow Airport (LHR), including American Airlines and British Airways. Still, you can opt for a limited number of one-stop flights that offer cheaper tickets, but this will generally increase your travel time by at least 3h.

  • Can I get to Philadelphia International Airport using public transportation?

    If you’re coming from the northeast corridor of Philadelphia, AMTRAK trains will drop you at 30th Street Station. From here, hop onto the SEPTA City Trains, which will drop you at the airport. Suppose you’re commuting from Wilmington/Newark, Media/Elwyn, and most Glenside Combined, Warminster, and West Trenton. In that case, there are Regional Rail Lines behind CHOP’s Philadelphia Campus that will transfer you free to PHL.

  • Is there parking at Philadelphia International Airport (PHL)?

    Yes, there’s on-site parking at Philadelphia International Airport located at garages A, B, C, D, E, F, and Economy, which you have to call to confirm its availability. The on-site Economy lot offers 24h shuttle service and complimentary services like tire changes and jump-starts. The regular patrol by the Airport Police Unit of the Philadelphia Police Department guarantees the safety of your vehicle.

  • How far is Heathrow Airport (LHR) from London’s city center?

    LHR lies about 15.5 miles west of Paddington Station in downtown London. Using the Heathrow Express train, you can easily access the Paddington Station in about 15 minutes. These coaches leave the airport about every 30min. However, if you prefer a taxi for convenience and privacy, you’ll get to the London city center in about 30min. Additionally, some buses go between the two points, covering the journey in approximately 50 min.

  • What is the cheapest flight from Philadelphia to London Heathrow Airport?

    In the last 3 days, the lowest price for a flight from Philadelphia to London Heathrow Airport was $310 for a one-way ticket and $568 for a round-trip.

  • Do I need a passport to fly between Philadelphia and London Heathrow Airport?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Philadelphia and on arrival in London Heathrow Airport.

  • Which airports will I be using when flying from Philadelphia to London Heathrow Airport?

    Philadelphia and London Heathrow Airport are both served by 1 main airport. You will leave Philadelphia from Philadelphia and will be arriving at London Heathrow.

  • Which airlines offer Wi-Fi service onboard planes from Philadelphia to London Heathrow Airport?

    American Airlines, British Airways, Finnair, Iberia, and Aer Lingus offer inflight Wi-Fi service on the Philadelphia to London Heathrow Airport flight route.

  • Which aircraft models fly most regularly from Philadelphia to London Heathrow Airport?

    The Boeing 787-9 Dreamliner is the aircraft model that flies most regularly on the Philadelphia to London Heathrow Airport flight route.

  • Which airline alliances offer flights from Philadelphia to London Heathrow Airport?

    oneworld is the only airline alliance operating flights between Philadelphia and London Heathrow Airport.

  • On which days can I fly direct from Philadelphia to London Heathrow Airport?

    There are nonstop flights from Philadelphia to London Heathrow Airport on a daily basis.

  • Which is the best airline for flights from Philadelphia to London, Delta or Finnair?

    The two airlines most popular with KAYAK users for flights from Philadelphia to London are Delta and Finnair. With an average price for the route of $950 and an overall rating of 8.0, Delta is the most popular choice. Finnair is also a great choice for the route, with an average price of $1,029 and an overall rating of 7.7.

  • How does KAYAK find such low prices on flights from Philadelphia to London Heathrow Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Philadelphia to London Heathrow Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Philadelphia to London Heathrow Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London Heathrow Airport from Philadelphia is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Philadelphia to London Heathrow Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to London Heathrow Airport with an airline and back to Philadelphia with another airline. Booking your flights between Philadelphia and LHR can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Philadelphia to London Heathrow Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London Heathrow Airport from Philadelphia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

KAYAK’s top tips for finding a cheap flight from Philadelphia to London Heathrow Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $702 or less one-way and $812 or less round-trip.
  • There are several lounges available in the departure and arrival airports for you to enjoy. There are multiple Admirals Club lounges in Philadelphia International Airport (PHL) and various London-Heathrow (LHR) lounges with amenities such as restrooms, meals, and Wi-Fi.
  • If you’ve scheduled an early morning flight from Philadelphia International Airport (PHL), consider passing the night at the Philadelphia Airport Marriott. You’ll wake relaxed and save yourself the early morning hassle of catching your plane.
  • For nursing mothers, they’ll find a nursing suite at their disposal in Terminal 3 in the Family Lounge when they arrive at the London Heathrow Airport (LHR).
  • Stop at PHL’s currency exchange counter in Terminal D, Gate D8, to exchange some of your dollars for pounds before visiting London. You’ll also find exchange counters at LHR in Terminals 2, 3, 4, and 5. You can convert your currency before and after security.
  • At LHR, Heathrow Central Station lies between Terminals 2 and 3 and is linked to both terminals by a pedestrian walkway. For a different option, head to Terminal 5, and you’ll find a railway station below it. There's a tube station adjacent to each railway station, although there’s no direct connection between the tube and the railway stations.
  • An Oyster card at Heathrow (LHR) comes in handy if you intend to use London’s trams, buses, railways, and subways. As an all-in-one electronic smartcard, it provides the most convenient way to pay for fares when transiting in London.
See more tips

Prefer to fly non-stop from Philadelphia to London Heathrow Airport?

Find which airlines fly direct from Philadelphia to Heathrow, which days they fly and book direct flights.

Nonstop departures

Philadelphia to London Heathrow

Monday

Aer Lingus, American Airlines, British Airways, +4 more

Aer Lingus, American Airlines, +5 more

Tuesday

Aer Lingus, American Airlines, British Airways, +4 more

Aer Lingus, American Airlines, +5 more

Wednesday

Aer Lingus, American Airlines, British Airways, +4 more

Aer Lingus, American Airlines, +5 more

Thursday

Aer Lingus, American Airlines, British Airways, +4 more

Aer Lingus, American Airlines, +5 more

Friday

Aer Lingus, American Airlines, British Airways, +4 more

Aer Lingus, American Airlines, +5 more

Saturday

Aer Lingus, American Airlines, British Airways, +4 more

Aer Lingus, American Airlines, +5 more

Sunday

Aer Lingus, American Airlines, British Airways, +4 more

Aer Lingus, American Airlines, +5 more

See more direct flights

Nonstop returns

London Heathrow to Philadelphia

Monday

Aer Lingus, American Airlines, British Airways, +4 more

Aer Lingus, American Airlines, +5 more

Tuesday

Aer Lingus, American Airlines, British Airways, +4 more

Aer Lingus, American Airlines, +5 more

Wednesday

Aer Lingus, American Airlines, British Airways, +4 more

Aer Lingus, American Airlines, +5 more

Thursday

Aer Lingus, American Airlines, British Airways, +4 more

Aer Lingus, American Airlines, +5 more

Friday

Aer Lingus, American Airlines, British Airways, +4 more

Aer Lingus, American Airlines, +5 more

Saturday

Aer Lingus, American Airlines, British Airways, +4 more

Aer Lingus, American Airlines, +5 more

Sunday

Aer Lingus, American Airlines, British Airways, +4 more

Aer Lingus, American Airlines, +5 more

See more direct flights
See more direct flights

Top 5 airlines serving from Philadelphia to Heathrow

 
See real verified KAYAK customer reviews for airlines flying from Philadelphia to London. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Philadelphia to Heathrow? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.7
FinnairOverall score based on 1369 reviews
8.2Crew
7.5Comfort
7.8Boarding
7.0Entertainment
6.9Food
Airline reviews

All good- I love BA and the professionalism of the crew and pilots.

8.0 ExcellentAnonymous, Apr 2024JFK - LHR
Read more about Finnair reviews

All good- I love BA and the professionalism of the crew and pilots.

Great flight- smooth, nice crew, nice clean aircraft, departed a little late but arrived 10 early.

It was listed on my ticket as Finnair but there was no indication that the flight was Finnair. In fact the number was even different. There were no employees there until exactly 2 hours before so we had to wait in line at Iberia and hope

Sorting on line would have been appreciated Onward information on flights missed No ability to get seating arranged before we got to gate Very unfriendly at gate

The flight was Finnair but there was no indications anywhere that the checkin was for Finnair also. There was no one to ask. I think at a minimum they should list the code shares so people don’t stand in the wrong line for an hour.

I booked the flight with Finnair, which made the arrangements for downloading a boarding pass unnecessarily complicated. I wouldn't do that again. Instead I'd book direct with AA.

Flight ok, but me and other two passengers didn’t have connection with the entertainment in our seats. So, no movies, no games, no music… for 9 hours. The crew just told us that there’s nothing they can do but I noticed during the flight that there were empty seats, so they could have offered to us to change seats. Customer service could be better.

Had a nice flight to London on BA will fly with them again in the future

Finnair cancelled my flight 12 hours prior to leaving for Helsinki. They stated there were mechanical problems. I had to scurry around to find a new flight that would meet my needs for arrival in Helsinki. Luckily I was able to find alternate transportation through Lufthansa/United.

Helpful steward. Allowed me to move to some empty seats and I was able to get some sleep. He also had milk for my tea. Americans don’t realise that cream or half and half ruin tea.

Missed connection from Philadelphia to London because flight from DC was seriously delayed. Was re-routed the next day (had to pay for hotel) to Zurich and was given a main cabin middle seat while I had paid for premium. Great job AA!!!

Original flight delayed several times and finally canceled at 2:30 in the morning. Staff at the gate was not very helpful in resolving problems or communicating why there were delays. I spent 34 hours at the airport before I could leave, they couldn't book me on another early flight even after canceling my original flight. Next flight available after my original flight was canceled was 22 hours later. I will never fly American Airlines again.

very very tight seats unfriendly crew who do not seem to care about the comfort of their passengers and do not know how to smile poor ground staff support at LHR and PHX

There were delays on both ends. It made it less than excellent. This plane was great though

So uncomfortable to sit in the tiny space on a long, international. Food was rough. Please, less white flour and processed food.

Our flight was delayed 2.5 hrs due to plane being too hot! After 1.5 hrs, airline decided to use another plane but had to wait for gate, baggage transfer & beverage transfer. Anyone could tell after first half hour that another plane was required and although did not affect us many would miss connecting flights at Heathrow. I have found the stewards are not the friendliest in the industry and the food is questionable, even as I like airplane food normally, the best of the 2 flights was the yogurt & granola for breakfast.

Attendants were rude. Scowling. Seats were miserable and we paid extra.

Tray table was filthy when I sat down. I needed to have someone come clean it because there was food and stains on it WiFi didn’t work after paying for in flight WiFi Food was terrible and was not filling at all Chicken was rubbery Flight attendant had an attitude, interrupted me and wasn’t able to answer basic questions about the food selection such as “does the chicken have red sauce in it”. If your flight attendants are not going to know what is in the meals so we can make an educated decision based on dietary restrictions, they shouldn’t be on the plane. My 1.5 year old niece was sleeping and dropped her binkie. I went on the ground under the chairs looking for it. It was at that time that she came up to me as I’m CLEARLY on all 4s with a flashlight and said “I need to get by”. I said one moment please I’m getting something from under the seat (while my head was literally under the seat). Her reply was “no you need to move now” and proceeded to almost push me out of the way. I looked up and all I saw was her toes under my eyes. When I looked in front of me, her private parts were inches away from my face. I then made a comment “you couldn’t waited 2 seconds?” and her response was, “no I need to use the bathroom”. I understand that and would never want to be the reason someone couldn’t get to the bathroom but I was under the seat. She could’ve gone around the other way instead of harassing me, basically placing her private parts on my head and borderline pushing me out of the way. You don’t pay (especially this much) for this deplorable experience. This was by far the worst experience I have ever had on American. I will be absolutely thinking twice and thrice about flying American Airlines again. I would rather pay more to fly delta because at least I know their WiFi will work and their flight attendants won’t have a terrible attitude for no reason, nor will they act the way this woman did. Unacceptable.

Great crew. Very comfortable business seats with nice bedding. Good food. We were delayed to let late passengers on the flight, but otherwise great experience.

Terrible boarding , Business class seats are sub standard. As usual crew will miss your food too

I fly to the USA every 6wks on Ave and 99% of the time I fly Aer Lingus. If I fly BA I’m always disappointed. My only criticism is the food. I’m vegan and over the last year it’s got slightly better these last couple of flights but on the whole it’s not good! Salad and fruit salad for breakfast and that’s also the starter and desert for the lunch/dinner and the main is usually rice with fried veg 😳the pasta is pretty good though. That’s been the last 2 meals…. Everything else is fantastic.

The flight was half full and I presume that the next few days are even less busy not sure why they are still charging a premium to change a flight.

Are Longus was fine. I booked thru Kayak and was unable to get my business class seat early. Sat next to galley. Crew forgot to wake me for breakfast.

I loved how they arrange boarding (starting with people seated in back and moving to the front). Flight crew was very polite and welcoming. Seating was ok, I felt like there was enough leg space however it is noticeable when the passenger in front of you sets their seat back.

Short flight so not much to rate. Surprised I had to pay for a soda.

Nice to be on a flight that wasn't fully booked so there were only two of us in the three seat row.

The only problem was there are games on the entertaiment system. The guy behind me played poker the entire time and poking the back of my seat. I hope they remove these.

Very good need to offer better choice of food for business

Great travel. Wonderful experience. Hope to do it again in the near future. God willing

Aer Lingus doesn't have plug ins for devices at each seat. They also did not give me a dairy free meal as requested and confirmed by staff. It was as if I had not requested anything. Otherwise, they were great!

My flight was cancelled after a 7 hour delay. I am awaiting a refund.

Ability to select seating would be nice. We were family of three and they had us seated back to back and one of us on the other side of the plane??? That is pretty goofy. Especially when tickets were placed two months in advance.

Our flight was delayed by 2-hrs but I understand it was beyond the scope of the crew members

I am quite satisfied. The flight was on time and landed early. Staff was friendly.

Needed more info on connecting flight. Late flight made very short connection. Lost luggage that we still do not have!

Seats comfortable on economy plus and attendants very helpful. Food was ok. Bathrooms needed servicing.

Original flight was cancelled - After waiting 2 hours for new take-off times. Then had to stand in line for 3 hours, ending at 2:30 am - to be told, " No hotel rooms anywhere in Dallas". No way for me to get any rest at DFW at that time of night.

I liked the friendly crew and desk staff, all very helpful. I was surprised and a little annoyed on my outbound flight from LGW to MCO as I had prepaid and booked my seat, which was all correct at check in on my boarding pass. when I got on the plane someone was in my seat ! I was moved to another seat. The food choice is quite limited and I feel that an option of a muffin for breakfast snack would be welcomed, not everyone wants egg or bacon wrap. The choice of entertainment is good, plenty to keep you busy on a long haul flight. I liked the option offered to have the cabin bag checked into the hold, it saved me as an older, lone traveller lifting my case into the overhead locker or finding there was no space.

good service from crew. Before the would have an option between cookies or nuts as snacks.. Now, there are only cookies. too bad. People who can not have sugar don't have a choice.

Fast check in, easy to navigate, crew were very good, the plane was delayed due to a previous flight and I found the cleanliness a little lacking but overall it was fine

Very bed boarding, there was overbooked and make a lot of problems and noises

On my way from Chicago to London, I was seated next to a quite heavy passenger. I could barely move. BA should have ensured that overweight customers are placed in comfortable seats and not to penalize also other passengers because BA is not willing to accommodate these passengers and their needs. No respect at all.

First time flying with BA and I will do it again. Staff at airport and on board were very nice and helpful

Wonderful service and very comfy in the bulkhead in Economy Plus! Delicious food.

The BA team at Sky Harbor is deplorable, full of unnecessary attitude and poor communication. It seems like every member of the team was looking at another to solve the problem, instead of taking agency to do so themselves. I saw no less than 6 altercations with the same gate agent where he threatened to revoke the passengers boarding pass for asking a wildly reasonable question, something as simple as where the cue to board was. I’ve complained to BA before but it seems this isn’t an issue for them, which is very disappointing

Boarding poor in London,ok in Chicago. Don’t like Heatrow/terminal5

It was very good. We got a late start by about an hour and a half. However I worked rather have that than crash. It was purely mechanical. They had our tickets ready when we came off the plane in London for the next leg. The only mishap was when we got to Lisbon my husbands luggage made or bit mine didn't. All was not lost because I did finally get it 2 days later. I was really pleased that they c made the effort.

Liked that my American Airlines status seamlessly transferred to BA so luggage check was free. Flights were on time, boarding quick. Wish they didn’t assign connecting gate so late at Heathrow.

The entire process was flawless and as expected flying first class. The only thing that I have a complaint on...when first boarding, the plane was EXTREMELY cold; then when we were trying to sleep, it was way too hot - just better regulating (especially trying to sleep) would have made it perfect.

- OK plane. Basic accommodations. OK food. The digital window shade wasn't working.

Book cheap flights from Philadelphia to London

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Philadelphia to London found on KAYAK in the last 72 hours.
7/30Tue
2 stops
31h 56mPHL-LHR
$310
7/9Tue
2 stops
55h 56mPHL-LHR
$311
7/31Wed
1 stopAer Lingus
12h 00mPHL-LHR
$482
7/3Wed
1 stopAer Lingus
19h 40mPHL-LHR
$494
10/4Fri
nonstopAmerican Airlines
7h 00mPHL-LHR
$569
9/27Fri
nonstopAmerican Airlines
7h 05mPHL-LHR
$570
9/2Mon
nonstopIberia
6h 55mPHL-LHR
$577
7/30Tue
nonstopIberia
6h 55mPHL-LHR
$588
9/3Tue
nonstopBritish Airways
7h 15mPHL-LHR
$601
8/7Wed
nonstopBritish Airways
6h 55mPHL-LHR
$610

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Last minute flights from Philadelphia to Heathrow

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Philadelphia to London that are departing in the next 10 days.
6/5Wed
multi-stopAir Canada
15h 25mPHL-LHR
6/11Tue
multi-stopAir Canada
17h 03mLHR-PHL
$830
6/4Tue
nonstopBritish Airways
7h 05mPHL-LHR
6/14Fri
nonstopBritish Airways
7h 55mLHR-PHL
$842
6/3Mon
multi-stopAmerican Airlines
11h 20mPHL-LHR
6/9Sun
multi-stopAmerican Airlines
12h 00mLHR-PHL
$864
6/3Mon
multi-stopAmerican Airlines
11h 20mPHL-LHR
6/9Sun
nonstopAmerican Airlines
7h 55mLHR-PHL
$884
6/2Sun
nonstopFinnair
7h 05mPHL-LHR
6/8Sat
multi-stopFinnair
22h 45mLHR-PHL
$978
6/6Thu
multi-stopAer Lingus
31h 10mPHL-LHR
6/20Thu
multi-stopAer Lingus
27h 00mLHR-PHL
$1,426
6/3Mon
nonstopFinnair
7h 05mPHL-LHR
6/9Sun
nonstopFinnair
7h 55mLHR-PHL
$1,490
6/2Sun
multi-stopAer Lingus
15h 40mPHL-LHR
6/7Fri
multi-stopAer Lingus
25h 45mLHR-PHL
$1,625
6/4Tue
nonstopIberia
7h 05mPHL-LHR
6/11Tue
multi-stopIberia
12h 39mLHR-PHL
$1,657
6/4Tue
nonstopIberia
7h 05mPHL-LHR
6/11Tue
multi-stopIberia
12h 39mLHR-PHL
$1,661

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Philadelphia - London Heathrow Airport Flights

Departure:

Philadelphia (PHL)United States

Destination:

London Heathrow Airport (LHR)United Kingdom

Return flight deals:

London Heathrow Airport - Philadelphia

Cabin classes:

$5,674
$3,595
$1,796
$652