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$303+ Cheap flights from Philadelphia (PHL) to London, ON (YXU)

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 4/23. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — YXU
Apr 11 — Apr 181
Sat 4/11
Sat 4/18
1 adult, Economy
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Cheap flight deals from Philadelphia to London

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 March 12, 2026.

This Air Canada deal was found by Cheapflights users on 3/8. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/14:20 pm
PHL
-
YXU
1 stop5h 18m
Air Canada
Tue 5/56:10 pm
YXU
-
PHL
1 stop4h 33m
Air Canada
Deal found 3/8$683
This Air Canada deal was found by Cheapflights users on 3/10. 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.
Fri 4/104:25 pm
PHL
-
YXU
1 stop4h 54m
Air Canada
Mon 4/135:40 pm
YXU
-
PHL
1 stop5h 03m
Air Canada
Deal found 3/10$694
This Air Canada deal was found by Cheapflights users on 3/9. 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 4/249:15 am
PHL
-
YXU
1 stop7h 49m
Air Canada
Sun 4/265:40 pm
YXU
-
PHL
1 stop5h 03m
Air Canada
Deal found 3/9$718

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 March 12, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$683
(Air Canada)

One-way from

$303
(Gotogate)
Provider with most accurate pricing for Philadelphia-London flight deals.
Search Deals
Provider most trusted by Cheapflights users for Philadelphia-London flights.
Search Deals
From Philadelphia to London
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One-way flight from Philadelphia to London
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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 2,558,603 searches. Data last updated March 12, 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 round-trip
Quickest round-trip

PhiladelphiaLondon

PHL - YXU

PHLYXU

Philadelphia

Fri 5/1

6:00 am-11:43 am

1 stop5h 43m

London

Tue 5/5

5:40 am-9:48 am

1 stop4h 08m

$683

PhiladelphiaLondon

PHL - YXU

PHLYXU

Philadelphia

Wed 4/22

4:25 pm-9:19 pm

1 stop4h 54m

London

Wed 4/29

5:40 pm-10:43 pm

1 stop5h 03m

$683
Cheapest one-way
Quickest one-way

PhiladelphiaLondon

PHL - YXU

PHLYXU

Philadelphia

Thu 4/23

4:25 pm-9:19 pm

1 stop4h 54m

$303

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/9

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.
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.

Cheapflights Insights

Everything you need to know about your flight from Philadelphia to London

What is the cheapest month to book a flight from Philadelphia to London, Ontario?

Currently, May is the cheapest month in which you can book a flight from Philadelphia to London, Ontario (average of $83). Flying from Philadelphia to London, Ontario in December is currently the most expensive (average of $128). 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.

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 March 12, 2026.
Read reviews from past customers who have flown Air Canada 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.
Air Canada
7.1
Good
10,800 reviews

Boarding

7.3

Comfort

7.1

Crew

7.8

Entertainment

6.8

Food

6.3

Overall

7.1

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

YXE - YYZ

We were over three hours delayed leaving Saskatoon and missed our connection to Montreal. We were then rerouted all the way to Zurich. We were over seven hours late getting to our final destination. Then our luggage was lost for lost for three days. All three flights were delayed and our trip was definitely impacted.
Air Canada
7.1
Good
10,800 reviews
Air Canada
7.1
Good
10,800 reviews

Boarding

7.3

Comfort

7.1

Crew

7.8

Entertainment

6.8

Food

6.3

Overall

7.1

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

YXE - YYZ

We were over three hours delayed leaving Saskatoon and missed our connection to Montreal. We were then rerouted all the way to Zurich. We were over seven hours late getting to our final destination. Then our luggage was lost for lost for three days. All three flights were delayed and our trip was definitely impacted.

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.

  • How long is the flight from Philadelphia to London, Ontario?

    Air Canada can get you from Philadelphia to London, Ontario in just under 5h 43m. Your travel time can differ by up to . There are 375 mi between Philadelphia and London, Ontario.

  • Can I find deals for flights from Philadelphia to London that include hotel bookings?

    Yes. In addition to deals on Philadelphia to London flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Philadelphia to London?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Philadelphia to London.

  • 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, Ontario?

    Currently, May is the cheapest month in which you can book a flight from Philadelphia to London, Ontario (average of $83). Flying from Philadelphia to London, Ontario in December is currently the most expensive (average of $128). 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.

See more FAQs

Traveling to a place near London?

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Top airline flying from Philadelphia to London

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 2,558,603 searches. Data last updated March 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$549Average$1,135FlexibilityNo cancel feeOn-time67%

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