$165+ 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 12/7. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — YXU
Nov 25 — Dec 21
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 October 26, 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 October 26, 2026.
This Mytrip deal was found by Cheapflights users on 10/22. 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.
Sun 12/66:31 pm -
2 stops23h 14m
Sun 12/1310:15 am -
2 stops13h 25m
Deal found 10/22![Multiple Airlines logo]()
$401
This Kiwi.com deal was found by Cheapflights users on 10/23. 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.
Wed 11/258:38 pm -
2 stops20h 22m
Sat 11/2810:00 am -
1 stop14h 53m
Deal found 10/23![Multiple Airlines logo]()
$652
This Kiwi.com deal was found by Cheapflights users on 10/25. 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.
Wed 12/99:56 pm -
1 stop19h 04m
Wed 12/166:40 am -
2 stops29h 53m
Deal found 10/25![Multiple Airlines logo]()
$761
This Air Canada deal was found by Cheapflights users on 10/25. 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.
Wed 12/99:15 am -
1 stop5h 27m
Wed 12/163:20 pm -
1 stop7h 26m
Deal found 10/25![Air Canada logo]()
$1,190
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 October 26, 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 October 26, 2026.
This Mytrip deal was found by Cheapflights users on 10/22. 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.
Sun 12/66:31 pm -
2 stops23h 14m
Sun 12/1310:15 am -
1 stop14h 28m
Deal found 10/22![Multiple Airlines logo]()
$412
This Air Canada deal was found by Cheapflights users on 10/25. 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 4/205:05 pm -
1 stop4h 39m
Sat 4/245:30 am -
2 stops9h 11m
Deal found 10/25![Air Canada logo]()
$1,069
This United Airlines deal was found by Cheapflights users on 10/23. 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 11/257:40 pm -
2 stops19h 02m
Sat 11/283:25 pm -
2 stops18h 24m
Deal found 10/23![United Airlines logo]()
$1,240
This Mytrip deal was found by Cheapflights users on 10/23. 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.
Wed 11/257:20 am -
3 stops33h 40m
Sat 11/2810:00 am -
2 stops20h 44m
Deal found 10/23![Multiple Airlines logo]()
$1,079
This United Airlines deal was found by Cheapflights users on 10/21. 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.
Thu 11/129:15 am -
1 stop5h 27m
Mon 11/163:25 pm -
2 stops18h 27m
Deal found 10/21![United Airlines logo]()
$1,335
Last-minute flights from Philadelphia to LondonDiscover last-minute flight deals from Philadelphia to London. Data last updated October 26, 2026 and is based on user searches.
Discover last-minute flight deals from Philadelphia to London. Data last updated October 26, 2026 and is based on user searches.
This Air Canada deal was found by Cheapflights users on 10/21. 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.
Thu 11/129:15 am -
1 stop5h 27m
Mon 11/163:25 pm -
1 stop7h 21m
Deal found 10/21![Air Canada logo]()
$1,247
This United Airlines deal was found by Cheapflights users on 10/21. 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.
Thu 11/129:15 am -
1 stop5h 27m
Mon 11/163:25 pm -
2 stops18h 27m
Deal found 10/21![United Airlines logo]()
$1,335
This Kiwi.com deal was found by Cheapflights users on 10/23. 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.
Wed 11/258:38 pm -
2 stops20h 22m
Sat 11/2810:00 am -
1 stop14h 53m
Deal found 10/23![Multiple Airlines logo]()
$652
This United Airlines deal was found by Cheapflights users on 10/23. 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 11/257:40 pm -
2 stops19h 02m
Sat 11/283:25 pm -
2 stops18h 24m
Deal found 10/23![United Airlines logo]()
$1,240
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 October 26, 2026.
Search for one-way flight options from Philadelphia to London. Find affordable one-way fares based on user searches. Data last updated October 26, 2026.
This Trip.com deal was found by Cheapflights users on 10/23. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/77:00 am -
1 stop10h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Multiple Airlines logo]()
$165
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 October 26, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $401 (Mytrip) |
One-way from | $165 (Trip.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 October 26, 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
Quickest round-trip
PhiladelphiaLondon
PHL Philadelphia - YXU London
PHLYXU
Philadelphia
Mon 12/7
7:00 am-5:45 pm
1 stop10h 45m
London
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$165
PhiladelphiaLondon
PHL Philadelphia - YXU London
PHLYXU
Philadelphia
Sun 12/6
6:31 pm-5:45 pm
2 stops23h 14m
London
Sun 12/13
10:15 am-12:43 am
1 stop14h 28m
$412
PhiladelphiaLondon
PHL Philadelphia - YXU London
PHLYXU
Philadelphia
Tue 4/20
5:05 pm-9:44 pm
1 stop4h 39m
London
Sat 4/24
5:30 am-2:41 pm
2 stops9h 11m
$1,069
PhiladelphiaLondon
PHL Philadelphia - YXU London
PHLYXU
Philadelphia
Wed 11/25
7:20 am-5:00 pm
3 stops33h 40m
London
Sat 11/28
10:00 am-6:44 am
2 stops20h 44m
$1,079
PhiladelphiaLondon
PHL Philadelphia - YXU London
PHLYXU
Philadelphia
Wed 11/25
7:40 pm-2:42 pm
2 stops19h 02m
London
Sat 11/28
3:25 pm-9:49 am
2 stops18h 24m
$1,240
PhiladelphiaLondon
PHL Philadelphia - YXU London
PHLYXU
Philadelphia
Thu 11/12
9:15 am-2:42 pm
1 stop5h 27m
London
Mon 11/16
3:25 pm-9:52 am
2 stops18h 27m
$1,335
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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