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PHL - LHR

Find cheap flights from Philadelphia to London Heathrow Airport from $388

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 7/10. 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
Tue 6/11
Tue 6/18

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 41,771,603 times on KAYAK, and here is why:

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Filter your dealsChoose cabin class, free Wi-Fi and more.

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

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Philadelphia to Heathrow that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
8:40 pm - 12:40 pmPHL-LHR
11h 00m1 stop
12:00 pm - 7:10 pmLHR-PHL
12h 10m1 stop
$668Aer Lingus
Find Deal
Fri, Aug 2 - Fri, Aug 30
8:40 pm - 11:10 amPHL-LHR
9h 30m1 stop
1:25 pm - 7:10 pmLHR-PHL
10h 45m1 stop
$678Aer Lingus
Find Deal
Fri, Aug 9 - Sat, Aug 31
10:35 pm - 10:30 amPHL-LHR
6h 55mnonstop
9:45 am - 12:45 pmLHR-PHL
8h 00mnonstop
$681Finnair
Find Deal
Tue, Jul 9 - Wed, Jul 24
10:45 pm - 10:50 amPHL-LHR
7h 05mnonstop
9:45 am - 12:30 pmLHR-PHL
7h 45mnonstop
$693Finnair
Find Deal
Sun, May 19 - Tue, May 28
6:30 pm - 10:10 pmPHL-LHR
22h 40m1 stop
1:00 pm - 4:00 pmLHR-PHL
8h 00mnonstop
$740Iberia
Find Deal
Sat, Aug 3 - Fri, Aug 30
6:30 pm - 6:40 amPHL-LHR
7h 10mnonstop
7:40 am - 4:15 pmLHR-PHL
13h 35m1 stop
$743American Airlines
Find Deal
Fri, Aug 2 - Fri, Aug 30
10:45 pm - 10:50 amPHL-LHR
7h 05mnonstop
6:45 am - 4:05 pmLHR-PHL
14h 20m1 stop
$754American Airlines
Find Deal
Tue, May 21 - Tue, May 28
10:45 pm - 10:50 amPHL-LHR
7h 05mnonstop
7:40 pm - 12:55 pmLHR-PHL
22h 15m1 stop
$761British Airways
Find Deal
Wed, May 15 - Wed, May 22
6:30 pm - 6:40 amPHL-LHR
7h 10mnonstop
1:40 pm - 4:35 pmLHR-PHL
7h 55mnonstop
$770British Airways
Find Deal
Sat, Aug 3 - Fri, Aug 30
10:45 pm - 10:50 amPHL-LHR
7h 05mnonstop
1:00 pm - 3:45 pmLHR-PHL
7h 45mnonstop
$773Iberia
Find Deal
Tue, May 21 - Tue, May 28

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, Sunday 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 $691 on average. On the other hand, the most expensive months are June and July, where the average cost of tickets is $1,286 and $1,167 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 $668 on Aer Lingus, followed by Finnair ($681). One-way flight deals have also been found from as low as $392 on JetBlue and from $521 on Aer Lingus.

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 $596. 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 between 6 and 7 nonstop flights that take off from Philadelphia and land in London Heathrow Airport, with an average flight time of 7h 13m. The most common departure time is 6:00 pm and most flights take off in the evening. Each week, there are 43 flights. The most frequent day of departure is Tuesday, when 16% of all weekly flights depart. The fewest flights depart on a Monday.

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 10:45 pm and lands at 10:50 am.

Good to know

Low season

February

High season

June

Cheapest flight

$388
Best time to beat the crowds with an average 19% drop in price.
Most popular time to fly with an average 41% 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 $388 for a one-way ticket and $668 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 $942 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 $1,089 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

Top tips for finding a cheap flight from PHL to London Heathrow Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $616 or less one-way and $785 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 1377 reviews
7.5Comfort
7.8Boarding
7.0Entertainment
8.2Crew
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.

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.

Not being able to purchase my check in baggage online was a negative.

LATE LATE LATE!!! Plagued by late AA flights on this trip. Such a drag. This one was by far the worst.

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

Just get Economy Plus for international flights, so worth it the extra room, bigger seats…

The return trip was a customer service disaster. American Airlines needs an overhaul of how they treat their customers.

Same basket of unhealthy prepackaged snacks (junk food) which was depleted by the time it got to my row!!

Was flying in premium eco and there were around 5-6 movies I wanted to watch and none of those could I play for some reasons. Not just me we checked w the person sitting next to me. Few of the movies were only playable :( Also that was not great that we couldn't upgrade to business however tried to, many times before the flight :(

You cancelled my flight by email then made it very difficult to get in contact with you. Then put me in a flight with a long layover in Mexico returning to the wrong airport in uk. Mind blowing my stressful. I missed see my grand dad because of you.

This was not the BA business class it used to be. Mediocre food, attendants seemed stretched thin. All the little luxuries that used to make BA business fun were missing. Flight delayed and the explanation given was they forgot to pick up crew - I hope I misheard! Transfer in LHR “sticky” - we thought we had way too much time at 3hours but it was needed. Next time will try different route.

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!

The transatlantic flight was wonderful. The regional reminded me of jet blue. Crazy and packed. Not enough overhead space and tough on elderly.

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

Iberia personnel on the ground is so rude. I would think twice in the future before booking another Iberia flight

I’m hoping for WiFi included. Everything else was very good

Pros: they tried to accommodate bc they forgot my gluten free meal Negatives: The flight was freeeeeezing Iberia didn’t communicate my gluten free meal

Rude security cunts. However the lady that issued my boarding ticket when I was flying back from New York was lovely & helpful!!

Appalling! The flight was delayed by 3.5 hours and the American Airlines staff at the airport where nit very helpful. Once boarded, the flight crew were unhelpful, the food was poor and the aircraft was tatty.

It was ok, not as good as it used to be. The Heathrow connection was a disaster - complete anarchy, unknowledgable and skimpy assistance and signage. Gate crew at next flight was great, held the flight while my wife struggled through security.

It was great! The seats were comfortable, and they fed me during the transatlantic flight, something which I have been missing out on for the past 3 years as I travel to and from school.

This flight was cancelled at the last minute. We were rebooked on another flight but a day later. We lost a day of our vacation and paid for a night in a hotel we couldn’t use. The flights we were rebooked on (both American) messed up our seating on both flights-we didn’t get the seats we had paid for. All in all, a terrible experience.

Lost our bags in Heathrow, We didn’t receive bags in Mallorca for 3 days, out of a 7 day cycling vacation. Really inconvenient and disappointing!

We missed the flight to Barcelona because the flight from Baltimore was delayed. We flew on Vueling VW6653. Our luggage didn’t arrive. Please help us get our luggage. We are staying at Hotel Gran Via in Barcelona

In economy and food was ok, but with limited leg space (and I was in a 2 seat configuration) it was difficult to eat with a tiny seat tray. I spilt wine on my trousers. First time on British Air (I usually fly Turkish Air) and in a 777. Heathrow was pleasant but changing terminals awkward.

Starting with the flight Cairo to London the plain was so poor no entertainment at all uncomfortable seats although it’s 5 hours long,then an American airline plain took me from London to Miami it was a bad experience the crew most of flight time not available and they asked us to help our selves for any snacks if we need. From Miami to London actually was perfect flight with a huge plain and perfect crew but from London to Cairo was horrible plain with stiff fixed seats not movable no entertainment or wi fi very poor Menu which is unacceptable for a business class

I've done hundreds of flights in my life, and this flight was one of the best I've ever taken, From beginning to end, everything went smoothly, professionally, and with a smile and friendly attitude from all employees I interacted with. The food was delicious (and free), as were the drinks. There was just a genial and effective way in the way that British Airways organized the flight -that reminded of days in the 70's, 80's, and 90's, when flying was a fun, and exciting adventure. I enjoyed and had confidence in the abilities of the flight crew, I'll be flying British Airways several more times this summer. Thank you so much for the great experience! Cheryl Olso

Terrible! I missed my flight to my final destination and British airlines and American Airlines keep pointing fingers on each other’s. Nobody wants to take responsibility

Overall, terrific service, accommodations, and experience. Only reason comfort was rated lower was because it was difficult to keep a comfortable sleeping position for the overnight flight, but I also had an economy seat.

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.
7/10Wed
3 stops
31h 30mPHL-LHR
$388
7/7Sun
3 stops
49h 10mPHL-LHR
$391
7/30Tue
1 stopJetBlue
16h 29mPHL-LHR
$392
6/10Mon
3 stops
32h 00mPHL-LHR
$395
8/10Sat
1 stopAer Lingus
11h 45mPHL-LHR
$521
7/7Sun
nonstopIberia
7h 15mPHL-LHR
$675
6/29Sat
nonstopIberia
7h 00mPHL-LHR
$790
7/12Fri
nonstopBritish Airways
7h 10mPHL-LHR
$801
8/8Thu
nonstopBritish Airways
6h 55mPHL-LHR
$853
6/27Thu
nonstopAmerican Airlines
7h 25mPHL-LHR
$978

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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.
5/14Tue
nonstopAmerican Airlines
7h 05mPHL-LHR
5/23Thu
multi-stopAmerican Airlines
14h 20mLHR-PHL
$754
5/14Tue
multi-stopAmerican Airlines
10h 50mPHL-LHR
5/23Thu
multi-stopAmerican Airlines
14h 20mLHR-PHL
$759
5/15Wed
nonstopBritish Airways
7h 05mPHL-LHR
5/22Wed
multi-stopBritish Airways
22h 15mLHR-PHL
$761
5/14Tue
nonstopIberia
7h 05mPHL-LHR
5/23Thu
nonstopIberia
7h 55mLHR-PHL
$773
5/14Tue
multi-stopIberia
13h 15mPHL-LHR
5/23Thu
nonstopIberia
7h 45mLHR-PHL
$777
5/15Wed
multi-stopBritish Airways
12h 25mPHL-LHR
5/22Wed
multi-stopBritish Airways
22h 15mLHR-PHL
$778
5/14Tue
multi-stopJetBlue
15h 00mPHL-LHR
5/18Sat
multi-stopJetBlue
16h 28mLHR-PHL
$878
5/17Fri
multi-stopJetBlue
9h 09mPHL-LHR
5/21Tue
multi-stopJetBlue
12h 10mLHR-PHL
$937
5/15Wed
nonstopFinnair
7h 05mPHL-LHR
5/16Thu
multi-stopFinnair
22h 40mLHR-PHL
$1,942
5/15Wed
nonstopFinnair
7h 05mPHL-LHR
5/16Thu
nonstopFinnair
7h 45mLHR-PHL
$2,074

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Philadelphia - London Heathrow Airport Flights

Departure:

Philadelphia (undefined)United States

Destination:

London Heathrow Airport (LHR)United Kingdom

Return flight deals:

London Heathrow Airport - Philadelphia

Cabin classes:

$5,655
$3,527
$1,770
$620