Cheap flights from Philadelphia to London from £215
This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/11. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — LON
19 Nov — 26 Nov1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Philadelphia to London are usually found in January or February, booked 67 days in advance, depart on a Monday or Tuesday and return on a Tuesday
Cheap flight deals from Philadelphia to London
Enter your travel dates to find the best prices.
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Best
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One-way
Cheapest flights from Philadelphia to London
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 20 October 2026.
Thu 10/1219:33 -
1 stop30h 22m
Fri 15/109:20 -
1 stop15h 49m
Deal found 19/10£616
Sat 21/1117:40 -
1 stop10h 55m
Wed 25/1108:40 -
1 stop12h 30m
Deal found 17/10£618
Thu 10/1219:33 -
1 stop30h 22m
Thu 14/109:20 -
1 stop28h 17m
Deal found 17/10£619
Sun 6/1217:40 -
1 stop9h 10m
Tue 15/1208:55 -
1 stop12h 15m
Deal found 16/10£619
Mon 30/1112:43 -
1 stop13h 12m
Mon 7/1209:20 -
1 stop14h 23m
Deal found 16/10£619
Wed 2/1217:40 -
1 stop9h 35m
Wed 9/1208:40 -
1 stop12h 30m
Deal found 18/10£619
Tue 24/1117:40 -
1 stop9h 35m
Tue 8/1208:55 -
1 stop12h 15m
Deal found 18/10£620
Tue 1/1209:30 -
1 stop16h 25m
Thu 10/1209:20 -
1 stop14h 23m
Deal found 16/10£621
Sat 7/1115:35 -
1 stop10h 20m
Tue 10/1109:20 -
1 stop12h 48m
Deal found 17/10£622
Wed 21/1015:26 -
1 stop10h 04m
Wed 4/1109:20 -
1 stop12h 48m
Deal found 15/10£622
Sat 14/1110:27 -
1 stop15h 28m
Tue 17/1109:20 -
1 stop16h 17m
Deal found 14/10£623
Fri 4/1217:05 -
3 stops20h 50m
Wed 9/1207:15 -
3 stops21h 11m
Deal found 18/10£623
Best flights from Philadelphia to London
Discover carefully curated flight deals from Philadelphia to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 20 October 2026.
Sat 7/1110:27 -
1 stop15h 28m
Fri 13/1109:20 -
1 stop12h 48m
Deal found 19/10£625
Wed 3/317:40 -
1 stop9h 35m
Sun 7/306:30 -
1 stop14h 40m
Deal found 16/10£640
Mon 30/1118:35 -
Nonstop7h 00m
Thu 10/1213:10 -
Nonstop8h 05m
Deal found 19/10£765
Sat 7/1117:58 -
2 stops23h 42m
Wed 11/1118:30 -
2 stops31h 41m
Deal found 19/10£768
Thu 19/1115:20 -
1 stop10h 50m
Thu 26/1109:30 -
1 stop11h 35m
Deal found 15/10£784
Mon 7/1214:07 -
2 stops20h 53m
Fri 11/1206:40 -
2 stops23h 17m
Deal found 15/10£839
Sat 9/119:50 -
Nonstop7h 00m
Sun 28/210:35 -
Nonstop8h 15m
Deal found 19/10£844
Sat 7/1110:27 -
1 stop15h 28m
Tue 10/1109:20 -
1 stop12h 48m
Deal found 19/10£625
Wed 10/221:10 -
1 stop13h 05m
Tue 16/207:15 -
1 stop11h 50m
Deal found 17/10£652
Sun 29/1117:40 -
1 stop9h 10m
Sun 6/1221:25 -
2 stops23h 45m
Deal found 15/10£664
Fri 5/317:40 -
1 stop9h 10m
Sun 7/306:30 -
1 stop14h 40m
Deal found 16/10£676
Mon 9/1117:58 -
2 stops23h 42m
Wed 11/1118:30 -
2 stops31h 41m
Deal found 17/10£836
Sat 7/1110:27 -
2 stops17h 53m
Wed 11/1107:05 -
3 stops22h 50m
Deal found 19/10£854
Sun 8/1118:35 -
Nonstop7h 00m
Tue 24/1113:10 -
Nonstop8h 05m
Deal found 17/10£875
Thu 4/317:40 -
1 stop14h 55m
Tue 9/307:15 -
1 stop13h 55m
Deal found 17/10£679
Tue 3/1117:40 -
1 stop10h 35m
Tue 10/1111:00 -
2 stops41h 54m
Deal found 17/10£712
Mon 2/1117:40 -
1 stop11h 40m
Tue 3/1119:45 -
2 stops33h 09m
Deal found 14/10£725
Sun 14/219:50 -
1 stop14h 00m
Tue 23/208:20 -
1 stop12h 30m
Deal found 18/10£726
Sat 30/121:10 -
1 stop9h 50m
Fri 26/206:00 -
1 stop14h 50m
Deal found 16/10£743
Sat 20/318:40 -
1 stop16h 35m
Sat 27/316:25 -
1 stop30h 30m
Deal found 17/10£763
Mon 7/1217:40 -
2 stops18h 15m
Tue 15/1207:15 -
1 stop13h 55m
Deal found 19/10£769
Thu 10/1218:35 -
Nonstop7h 00m
Thu 14/106:30 -
1 stop12h 35m
Deal found 17/10£774
Sun 22/1117:40 -
1 stop11h 00m
Sun 29/1119:05 -
2 stops26h 05m
Deal found 16/10£779
Direct flights from Philadelphia to London
Explore direct flight options from Philadelphia to London based on user searches, and compare prices and availability for your desired travel dates. Data last updated 20 October 2026.
Mon 18/118:35 -
Nonstop7h 00m
Thu 21/113:10 -
Nonstop8h 05m
Deal found 15/10£685
Sun 17/118:35 -
Nonstop7h 00m
Fri 29/113:10 -
Nonstop8h 05m
Deal found 19/10£700
Mon 18/118:35 -
Nonstop7h 00m
Thu 21/113:10 -
Nonstop8h 05m
Deal found 15/10£703
Sun 17/118:35 -
Nonstop7h 00m
Wed 17/213:10 -
Nonstop8h 05m
Deal found 19/10£707
Sun 29/1118:35 -
Nonstop7h 00m
Tue 8/1213:10 -
Nonstop8h 05m
Deal found 20/10£712
Sun 15/1118:35 -
Nonstop7h 00m
Tue 24/1113:10 -
Nonstop8h 05m
Deal found 16/10£714
Fri 15/118:35 -
Nonstop7h 00m
Tue 26/113:10 -
Nonstop8h 05m
Deal found 16/10£720
Tue 1/1218:35 -
Nonstop7h 00m
Thu 10/1213:10 -
Nonstop8h 05m
Deal found 16/10£739
Tue 12/118:35 -
Nonstop7h 00m
Tue 19/113:10 -
Nonstop8h 05m
Deal found 19/10£743
Last-minute flights from Philadelphia to London
Discover last-minute flight deals from Philadelphia to London. Data last updated 20 October 2026 and is based on user searches.
Mon 26/1010:27 -
1 stop16h 28m
Tue 3/1109:20 -
1 stop12h 48m
Deal found 18/10£636
Tue 27/1015:35 -
1 stop11h 20m
Wed 4/1109:20 -
1 stop12h 48m
Deal found 16/10£621
Wed 4/1117:40 -
1 stop9h 35m
Wed 18/1120:55 -
2 stops31h 48m
Deal found 15/10£637
Mon 9/1117:40 -
1 stop11h 40m
Tue 8/1220:50 -
1 stop24h 20m
Deal found 18/10£628
Tue 10/1117:40 -
1 stop9h 35m
Tue 17/1110:25 -
3 stops25h 56m
Deal found 16/10£643
Thu 12/1117:05 -
3 stops25h 35m
Mon 16/1106:10 -
3 stops21h 36m
Deal found 19/10£634
Fri 13/1112:25 -
3 stops21h 50m
Fri 20/1114:15 -
3 stops34h 29m
Deal found 15/10£642
Sun 15/1117:40 -
1 stop11h 00m
Tue 24/1107:15 -
1 stop13h 55m
Deal found 17/10£634
Tue 17/1117:40 -
1 stop11h 40m
Thu 26/1121:45 -
1 stop21h 15m
Deal found 15/10£632
Sat 21/1117:40 -
1 stop10h 55m
Wed 25/1108:40 -
1 stop12h 30m
Deal found 17/10£618
Tue 24/1117:40 -
1 stop9h 35m
Tue 8/1208:55 -
1 stop12h 15m
Deal found 18/10£620
Sun 29/1115:20 -
3 stops27h 25m
Sun 6/1218:30 -
3 stops26h 51m
Deal found 15/10£638
One-way flights from Philadelphia to London
Search for one-way flight options from Philadelphia to London. Find affordable one-way fares based on user searches. Data last updated 20 October 2026.
Mon 9/1110:27 -
1 stop15h 28m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 15/10£215
Sat 14/1115:35 -
1 stop10h 20m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 19/10£215
Wed 11/1107:00 -
1 stop18h 55m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 19/10£216
Fri 13/1115:35 -
1 stop10h 20m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 19/10£218
Tue 17/1115:35 -
1 stop10h 20m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 18/10£219
Sun 15/1107:00 -
1 stop18h 55m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 16/10£224
Mon 30/1112:43 -
1 stop13h 12m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 18/10£224
Sun 15/1117:40 -
1 stop11h 00m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 16/10£230
Sun 8/1117:40 -
1 stop21h 25m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 16/10£231
Wed 2/1219:33 -
1 stop30h 22m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 16/10£233
Mon 2/1117:40 -
1 stop9h 50m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 16/10£233
Tue 17/1117:40 -
1 stop11h 40m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 18/10£236
Find 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 20 October 2026.
Customise 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 7,457,451 searches. Data last updated 20 October 2026.
Use the filters below to find and compare flights from Philadelphia to London that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
Cheapest return flight
PhiladelphiaLondon
PHL Philadelphia - LHR London Heathrow
PHLLHR
Philadelphia
Mon 16/11
15:35-06:55
1 stop10h 20m
London Heathrow
Wed 31/12
00:00-18:00
Nonstop0h 00m
£223
PhiladelphiaLondon
PHL Philadelphia - LHR London Heathrow
PHLLHR
Philadelphia
Fri 4/12
09:30-06:55
1 stop16h 25m
London Heathrow
Wed 31/12
00:00-18:00
Nonstop0h 00m
£224
PhiladelphiaLondon
PHL Philadelphia - STN London Stansted
PHLSTN
Philadelphia
Mon 2/11
17:40-15:10
1 stop16h 30m
London Stansted
Wed 31/12
00:00-18:00
Nonstop0h 00m
£233
Fastest return journey
PhiladelphiaLondon
PHL Philadelphia - STN London Stansted
PHLSTN
Philadelphia
Wed 25/11
17:40-08:15
1 stop9h 35m
London Stansted
Wed 31/12
00:00-18:00
Nonstop0h 00m
£236
PhiladelphiaLondon
PHL Philadelphia - STN London Stansted
PHLSTN
Philadelphia
Sun 13/12
17:40-09:40
1 stop11h 00m
London Stansted
Wed 31/12
00:00-18:00
Nonstop0h 00m
£240
PhiladelphiaLondon
PHL Philadelphia - STN London Stansted
PHLSTN
Philadelphia
Tue 8/12
17:40-10:20
1 stop11h 40m
London Stansted
Wed 31/12
00:00-18:00
Nonstop0h 00m
£240
PhiladelphiaLondon
PHL Philadelphia - STN London Stansted
PHLSTN
Philadelphia
Sun 22/11
06:10-08:30
3 stops45h 20m
London Stansted
Wed 31/12
00:00-18:00
Nonstop0h 00m
£252
PhiladelphiaLondon
PHL Philadelphia - STN London Stansted
PHLSTN
Philadelphia
Tue 6/4
20:25-23:00
2 stops21h 35m
London Stansted
Wed 31/12
00:00-18:00
Nonstop0h 00m
£285
PhiladelphiaLondon
PHL Philadelphia - STN London Stansted
PHLSTN
Philadelphia
Sun 4/4
20:25-12:35
1 stop11h 10m
London Stansted
Wed 31/12
00:00-18:00
Nonstop0h 00m
£292
PhiladelphiaLondon
PHL Philadelphia - LHR London Heathrow
PHLLHR
Philadelphia
Wed 30/12
09:29-06:56
1 stop16h 27m
London Heathrow
Wed 31/12
00:00-18:00
Nonstop0h 00m
£295
Flights are sorted by cheapest return flights first.
Deals found on 18/10
Showing 1-10 of 40 resultsSorted by cheapest first
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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.
PHL-LON
PHL-STN
PHL-LHR
Estimated return 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.
Cheapflights Insights
Everything you need to know about your flight from Philadelphia to London
PHL-LON
PHL-STN
PHL-LHR
What is the cheapest month to book a flight from Philadelphia to London?
Currently, February is the cheapest month in which you can book a flight from Philadelphia to London (average of £556). Flying from Philadelphia to London in June is currently the most expensive (average of £1,113). 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 20 October 2026.
When flying from Philadelphia to London, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
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 20 October 2026.
The most flights from PHL to LON are scheduled on a Monday (15 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (15 on average).
How much does it cost for a return flight from Philadelphia to London?
Airfare is below average for this route at the moment.
Philadelphia to London flights typically cost between £632 and £855 in December.The cheapest return price found within the last 5 days was £616 on JetBlue (10 Dec–15 Jan).
How far ahead should I book a flight from Philadelphia to London?
The price you pay for your flight from Philadelphia to London may vary depending on when you book. For the best chance of a lower fare, look to book 76 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
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 20 October 2026.
Read reviews from past customers who have flown with American Airlines,Iberia, andBritish Airways
from Philadelphia to London. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
The plane was very old...had no WiFi available. The crew were not friendly nor helpful.
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.
What airport do you fly from for flights from Philadelphia to London?
Located just 7.0 mi from the city center, Philadelphia is the airport most travelers will use when flying to London from Philadelphia. Booking flights from Philadelphia (PHL) to London should be relatively easy as there are 15 daily outbound flights to London from 1 airline.
How long is the flight from Philadelphia to London?
For as low as £765, JetBlue can have you in London from Philadelphia in 7h. There are 3533 mi between Philadelphia and London. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
What is the cheapest airline to fly from Philadelphia to London round-trip?
Flying on British Airways is currently your cheapest option to London, with prices starting at £515. British Airways is currently priced 31% below the average price you’ll pay for this route.
What are the most popular routes from Philadelphia to London?
The most popular route from Philadelphia to London is Philadelphia - London Heathrow. You may also consider Philadelphia - London Gatwick or Philadelphia - London City.
What are the most reliable airlines from Philadelphia to London?
Consider Malaysia Airlines (94%), American Airlines (91%) or British Airways (91%) when booking your flight. These represent the most reliable airlines when flying from Philadelphia to London.
What are the cheapest flights from Philadelphia to London?
Looking for the cheapest flight from Philadelphia to London? While on average our users pay £920, our data indicates the cheapest price to be £529. The most popular route (Philadelphia - London Heathrow), is priced around £577.
Can I find deals for business class flights from Philadelphia to London?
Yes. Cheapflights offers flight deals from Philadelphia to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Philadelphia to London?
Currently, February is the cheapest month in which you can book a flight from Philadelphia to London (average of £556). Flying from Philadelphia to London in June is currently the most expensive (average of £1,113). 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.
Explore flights to London departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 20 October 2026.
Browse through other flights departing from Philadelphia. Flights are based on user searches made on Cheapflights and were last updated on 20 October 2026.
Discover the top airline 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 7,457,451 searches. Data last updated 20 October 2026.
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Philadelphia to London?
Cheapflights makes it easy to find Philadelphia to London flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.
Why should you use Cheapflights to find cheap flight tickets from Philadelphia to London?
Cheapflights simply makes it quick and affordable to book flights from Philadelphia to London by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.
Can Cheapflights find flights from Philadelphia to London with no change fees?
Certainly. Search results for flights to London from Philadelphia shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.
Can Cheapflights notify me if prices for flights from Philadelphia to London become cheaper?
Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!
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