BA's Club Suite offers private pods with doors, enhancing privacy and comfort on long-haul flights.
BA's World Traveller Plus offers extra seat width and legroom, ideal for long-haul comfort.
$205+ Cheap flights from Philadelphia (PHL) to London (LON)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/12. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — LON
Feb 16 — Feb 231
1 adult, Economy
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Find cheap flights from Philadelphia to London with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.The best prices from Philadelphia to London are usually found in February or October, booked 11 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday
Cheap flight deals from Philadelphia to London
Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) to London (LON). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 11, 2025.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $629 (Mytrip) |
One-way from | $205 (Norse) |
Popular in | June |
Cheapest in | February |
Average price | $664 |
Good round-trip deal | $711 or less |
Good one-way deal | $518 or less |
Find flight deals from Philadelphia to London
Cheapest flights from Philadelphia to LondonExplore the most affordable flight options available from Philadelphia to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 11, 2025.
Explore the most affordable flight options available from Philadelphia to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 11, 2025.
This Mytrip deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/255:15 amPHL - STN
3 stops23h 45mMultiple Airlines
Mon 3/311:00 amSTN - PHL
3 stops27h 59mMultiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$629
This JetBlue deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/83:55 pmPHL - LHR
1 stop9h 35mJetBlue
Tue 4/158:25 amLHR - PHL
1 stop11h 43mJetBlue
Deal found 2/11![JetBlue logo]()
$630
This Booking.com deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/25:30 pmPHL - LHR
1 stop9h 35mAer Lingus
Tue 3/118:50 amLHR - PHL
1 stop12h 10mAer Lingus
Deal found 2/10![Aer Lingus logo]()
$631
This Kiwi.com deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/110:05 amPHL - LGW
1 stop15h 55mMultiple Airlines
Wed 5/710:00 amLGW - PHL
1 stop28h 00mMultiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$632
This Booking.com deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/23:30 pmPHL - LHR
1 stop10h 40mMultiple Airlines
Tue 3/118:55 amLHR - PHL
2 stops17h 41mMultiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$634
This oojo deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/46:40 pmPHL - LHR
Nonstop6h 55mBritish Airways
Wed 3/1210:40 amLHR - PHL
1 stop10h 45mBritish Airways
Deal found 2/11![British Airways logo]()
$636
This JetBlue Airways deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/176:37 pmPHL - LGW
1 stop9h 58mJetBlue
Mon 9/2212:10 pmLGW - PHL
1 stop14h 20mJetBlue
Deal found 2/10![JetBlue logo]()
$636
This Booking.com deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/23:30 pmPHL - LHR
2 stops15h 20mAir Canada
Tue 3/118:55 amLHR - PHL
2 stops17h 41mAir Canada
Deal found 2/10![Air Canada logo]()
$638
This American Airlines deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/29:16 pmPHL - LHR
Nonstop7h 04mAmerican Airlines
Tue 3/119:50 amLHR - PHL
1 stop11h 35mAmerican Airlines
Deal found 2/10![American Airlines logo]()
$640
This Cheapflightsfares deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/286:30 pmPHL - LHR
Nonstop7h 10mIberia
Thu 5/810:05 amLHR - PHL
Nonstop7h 45mIberia
Deal found 2/10![Iberia logo]()
$649
This United deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/53:30 pmPHL - LHR
1 stop10h 40mUnited Airlines
Wed 3/196:30 amLHR - PHL
2 stops20h 06mUnited Airlines
Deal found 2/11![United Airlines logo]()
$653
This oojo deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/18:20 amPHL - LGW
1 stop17h 15mBritish Airways
Wed 4/302:30 pmLGW - PHL
1 stop23h 06mBritish Airways
Deal found 2/11![British Airways logo]()
$654
Find flights from Philadelphia to London within your budget
Customize your flight search to find flights from Philadelphia to London that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 11, 2025.
Fly from
Any airport
Fly to
Any airport
Route
Depart
Return
Price
PhiladelphiaLondon
PHL - STN
PHLSTN
Philadelphia
Tue 2/25
5:15 am-10:00 am
3 stops23h 45m
London Stansted
Mon 3/3
11:00 am-9:59 am
3 stops27h 59m
$629
PhiladelphiaLondon
PHL - LHR
PHLLHR
Philadelphia
Tue 4/8
3:55 pm-6:30 am
1 stop9h 35m
London Heathrow
Tue 4/15
8:25 am-3:08 pm
1 stop11h 43m
$630
PhiladelphiaLondon
PHL - LHR
PHLLHR
Philadelphia
Sun 3/2
5:30 pm-8:05 am
1 stop9h 35m
London Heathrow
Tue 3/11
8:50 am-5:00 pm
1 stop12h 10m
$631
PhiladelphiaLondon
PHL - LGW
PHLLGW
Philadelphia
Thu 5/1
10:05 am-7:00 am
1 stop15h 55m
London Gatwick
Wed 5/7
10:00 am-9:00 am
1 stop28h 00m
$632
PhiladelphiaLondon
PHL - LHR
PHLLHR
Philadelphia
Sun 3/2
3:30 pm-7:10 am
1 stop10h 40m
London Heathrow
Tue 3/11
8:55 am-10:36 pm
2 stops17h 41m
$634
PhiladelphiaLondon
PHL - LHR
PHLLHR
Philadelphia
Tue 3/4
6:40 pm-6:35 am
Nonstop6h 55m
London Heathrow
Wed 3/12
10:40 am-5:25 pm
1 stop10h 45m
$636
PhiladelphiaLondon
PHL - LHR
PHLLHR
Philadelphia
Sun 3/2
3:30 pm-11:50 am
2 stops15h 20m
London Heathrow
Tue 3/11
8:55 am-10:36 pm
2 stops17h 41m
$638
PhiladelphiaLondon
PHL - LHR
PHLLHR
Philadelphia
Sun 3/2
9:16 pm-9:20 am
Nonstop7h 04m
London Heathrow
Tue 3/11
9:50 am-5:25 pm
1 stop11h 35m
$639
PhiladelphiaLondon
PHL - LHR
PHLLHR
Philadelphia
Mon 4/28
10:10 pm-10:20 am
Nonstop7h 10m
London Heathrow
Wed 5/7
12:30 pm-3:15 pm
Nonstop7h 45m
$649
PhiladelphiaLondon
PHL - LHR
PHLLHR
Philadelphia
Wed 3/5
3:30 pm-7:10 am
1 stop10h 40m
London Heathrow
Wed 3/19
6:30 am-10:36 pm
2 stops20h 06m
$653
Showing 1-10 of 57 results
Compare providers for flights from Philadelphia to London
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Philadelphia to London in February.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Philadelphia-London flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Philadelphia-London flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Philadelphia-London flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Philadelphia-London flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Philadelphia-London flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
The best insider tips for Philadelphia to London flights
Find out what our experts recommend to make the most of your Philadelphia to London trip
Airlines
![British Airways]()
British Airways
![American Airlines]()
American Airlines
AA's Flagship Business offers 6’ 7” lay-flat beds and direct aisle access for long-haul comfort.
AA's Premium Economy provides 38-inch seat pitch and priority boarding for a better travel experience.
![Iberia]()
Iberia
Iberia's premium economy offers 37-inch legroom and noise-canceling headphones for enhanced comfort.
Iberia's Wi-Fi is free for text messaging apps for Business class and Iberia Plus members.
![Aer Lingus]()
Aer Lingus
Aer Lingus offers pre-clearance for US immigration in Dublin, saving time upon arrival.
Aer Lingus' Business Flex includes lie-flat seats, complimentary Wi-Fi, and upgraded dining.
![Finnair]()
Finnair
Finnair's AirLounge seats in business class offer a unique non-reclining, cocooning lounge space.
Finnair's Premium Economy offers 38-inch pitch and comfy leg rest for long-haul comfort.
Our travel experts
Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Best time to book a flight from Philadelphia to London
Have a flexible travel schedule? Discover the best time to fly to London from Philadelphia with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Travel insights for flights from Philadelphia to London
Get recent, data-driven insights about flights from Philadelphia to London including ideal travel times, pricing trends, and more.
How far ahead should I book a flight from Philadelphia to London?
Use this chart to determine the optimal time to book a round-trip flight from Philadelphia to London. Price data was last updated on February 7, 2025.
Booking 11 days in advance of your planned departure date is, on average, the best time to get cheap flights from Philadelphia to London. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from Philadelphia to London?
Currently, November is the cheapest month in which you can book a flight from Philadelphia to London (average of $661). Flying from Philadelphia to London in June is currently the most expensive (average of $1,136). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from PHL to LON?
Find hourly flight availability from Philadelphia to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 11, 2025.
A simple way to save on the total cost of your ticket is to fly from Philadelphia to London at noon. If you’re flexible enough to do this you can expect to save up to 16% on your trip compared to booking a flight in the afternoon.
What is the cheapest day to fly from Philadelphia to London?
Use this chart to determine the cheapest time to fly round-trip from Philadelphia to London. Price data was last updated on December 16, 2024.
Travelers seeking maximum savings on their Philadelphia to London flight should consider departing on Tuesday mornings when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from Philadelphia to London
Explore weekly flight availability from Philadelphia to London. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated February 11, 2025.
The most flights from PHL to LON are scheduled on a Monday (10 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (10 on average).
Rainfall in London by month
Plan your trip to London by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in London ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London when rainfall is around 1.6 in.
Temperature in London by month
Plan your trip to London by taking into account the average temperature totals by month.
If weather is an important factor for your trip to London, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).
Reviews of airlines servicing London
Get insights into the airlines that provide service to London. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to London. Reviews last updated February 11, 2025.
To help decide which airline to fly from Philadelphia to London, see what other customers have to say about Delta, KLM and Finnair. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.3
Crew
8.5
Entertainment
7.9
Overall
8.0
Boarding
8.2
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Food
7.3
Crew
8.5
Entertainment
7.9
Overall
8.0
Boarding
8.2
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Food
7.3
Crew
8.5
Entertainment
7.9
Overall
8.0
Boarding
8.2
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Food
7.3
Crew
8.5
Entertainment
7.9
Overall
8.0
Boarding
8.2
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Food
7.3
Crew
8.5
Entertainment
7.9
Overall
8.0
Boarding
8.2
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Food
7.3
Crew
8.5
Entertainment
7.9
Overall
8.0
Boarding
8.2
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Related info for your journey
Find useful and relevant information for your journey from Philadelphia to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Philadelphia?
Book flights to Philadelphia if you plan to visit one of these locationsHayes
Hounslow
Thornton Heath
Harrow
Luton
Wembley
Horley
Canterbury
Gatwick
Milton Keynes
Dover
Orpington
Watford
Croydon
Borehamwood
Bromley
Folkestone
Ilford
Aylesbury
Chelmsford
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for Philadelphia to London
See prices for flight routes from nearby airports that may be better suited for you.
Top 10 airlines flying from Philadelphia to London
Discover the top 10 airlines that operate flights from Philadelphia to London. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 11, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$467 | Average$698 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$525 | Average$987 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$529 | Average$948 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$575 | Average$863 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$578 | Average$778 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$586 | Average$849 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$625 | Average$847 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$625 | Average$900 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$633 | Average$807 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$673 | Average$1,119 | FlexibilityNo cancel fee | On-time69% |