$275+ Cheap flights from Philadelphia (PHL) to London, ON (YXU)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/25. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — YXU
Oct 13 — Oct 201
Round-trip
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.Cheap flight deals from Philadelphia to London
Cheapest
Best
Last-minute
One-way
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 September 13, 2026.
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 September 13, 2026.
This Air Canada deal was found by Cheapflights users on 9/9. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/97:00 am -
1 stop10h 43m
Thu 10/156:20 pm -
1 stop4h 26m
Deal found 9/9![Air Canada logo]()
$745
This Air Canada deal was found by Cheapflights users on 9/9. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/610:05 am -
2 stops7h 38m
Sat 10/106:20 pm -
1 stop4h 26m
Deal found 9/9![Air Canada logo]()
$884
This United Airlines deal was found by Cheapflights users on 9/9. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/74:20 pm -
1 stop5h 20m
Wed 10/146:20 pm -
1 stop4h 26m
Deal found 9/9![United Airlines logo]()
$983
This United Airlines deal was found by Cheapflights users on 9/8. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/234:20 pm -
1 stop5h 20m
Fri 10/303:25 pm -
2 stops8h 05m
Deal found 9/8![United Airlines logo]()
$998
This United Airlines deal was found by Cheapflights users on 9/11. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/279:15 am -
1 stop5h 32m
Tue 11/33:25 pm -
2 stops7h 44m
Deal found 9/11![United Airlines logo]()
$999
This Air Canada deal was found by Cheapflights users on 9/10. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/154:20 pm -
1 stop5h 20m
Fri 9/1810:05 am -
1 stop5h 36m
Deal found 9/10![Air Canada logo]()
$1,492
Best flights from Philadelphia to LondonDiscover carefully curated flight deals from Philadelphia to London that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 13, 2026.
Discover carefully curated flight deals from Philadelphia to London that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 13, 2026.
This Air Canada deal was found by Cheapflights users on 9/9. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/97:00 am -
1 stop12h 40m
Thu 10/153:30 pm -
2 stops6h 02m
Deal found 9/9![Air Canada logo]()
$754
This Air Canada deal was found by Cheapflights users on 9/11. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/610:05 am -
2 stops7h 38m
Sat 10/106:20 pm -
1 stop4h 26m
Deal found 9/11![Air Canada logo]()
$884
Last-minute flights from Philadelphia to LondonDiscover last-minute flight deals from Philadelphia to London. Data last updated September 13, 2026 and is based on user searches.
Discover last-minute flight deals from Philadelphia to London. Data last updated September 13, 2026 and is based on user searches.
This Air Canada deal was found by Cheapflights users on 9/10. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/154:20 pm -
1 stop5h 20m
Fri 9/1810:05 am -
1 stop5h 36m
Deal found 9/10![Air Canada logo]()
$1,492
This Air Canada deal was found by Cheapflights users on 9/9. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/610:05 am -
2 stops7h 38m
Sat 10/106:20 pm -
1 stop4h 26m
Deal found 9/9![Air Canada logo]()
$884
This United Airlines deal was found by Cheapflights users on 9/9. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/74:20 pm -
1 stop5h 20m
Wed 10/146:20 pm -
1 stop4h 26m
Deal found 9/9![United Airlines logo]()
$983
This Air Canada deal was found by Cheapflights users on 9/9. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/97:00 am -
1 stop10h 43m
Thu 10/156:20 pm -
1 stop4h 26m
Deal found 9/9![Air Canada logo]()
$745
This United Airlines deal was found by Cheapflights users on 9/8. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/234:20 pm -
1 stop5h 20m
Fri 10/303:25 pm -
2 stops8h 05m
Deal found 9/8![United Airlines logo]()
$998
This United Airlines deal was found by Cheapflights users on 9/11. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/279:15 am -
1 stop5h 32m
Tue 11/33:25 pm -
2 stops7h 44m
Deal found 9/11![United Airlines logo]()
$999
One-way flights from Philadelphia to LondonSearch for one-way flight options from Philadelphia to London. Find affordable one-way fares based on user searches. Data last updated September 13, 2026.
Search for one-way flight options from Philadelphia to London. Find affordable one-way fares based on user searches. Data last updated September 13, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
Sun 10/258:30 am -
2 stops46h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Multiple Airlines logo]()
$275
This Air Canada deal was found by Cheapflights users on 9/10. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/259:10 am -
1 stop5h 37m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Air Canada logo]()
$403
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 (YXU). 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 September 13, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $745 (Air Canada) |
One-way from | $275 (Kiwi.com) |
Cheapflights Fare Finder
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 7,457,451 searches. Data last updated September 13, 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
Cheapest round-trip
PhiladelphiaLondon
PHL Philadelphia - YXU London
PHLYXU
Philadelphia
Sun 10/25
8:30 am-6:35 am
2 stops46h 05m
London
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$275
Quickest round-trip
PhiladelphiaLondon
PHL Philadelphia - YXU London
PHLYXU
Philadelphia
Sun 10/25
9:10 am-2:47 pm
1 stop5h 37m
London
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$403
PhiladelphiaLondon
PHL Philadelphia - YXU London
PHLYXU
Philadelphia
Fri 10/9
7:00 am-7:40 pm
1 stop12h 40m
London
Thu 10/15
3:30 pm-9:32 pm
2 stops6h 02m
$754
PhiladelphiaLondon
PHL Philadelphia - YXU London
PHLYXU
Philadelphia
Tue 10/6
10:05 am-5:43 pm
2 stops7h 38m
London
Sat 10/10
6:20 pm-10:46 pm
1 stop4h 26m
$884
Sorted by cheapest first
- Most accurate provider: When it comes to deals on Philadelphia-London, Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Philadelphia-London, Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Philadelphia-London, Ontario flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Philadelphia-London, Ontario 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, Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
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-YXU
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.
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.
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