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Cheap flights from Philadelphia to London from $365

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Philadelphia to London departing on 4/16. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Philadelphia to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
7:00 am - 11:45 am
PHL
-
YXU
4h 45m
1 stop
Air Canada Logo
6:00 am - 9:45 am
YXU
-
PHL
3h 45m
1 stop
$605Air Canada
Thu, Jul 9 - Sun, Jul 12
Air Canada Logo
7:00 am - 11:45 am
PHL
-
YXU
4h 45m
1 stop
Air Canada Logo
6:00 am - 2:49 pm
YXU
-
PHL
8h 49m
2 stops
$614Air Canada
Thu, Jul 9 - Sun, Jul 12
Air Canada Logo
4:20 pm - 9:38 pm
PHL
-
YXU
5h 18m
1 stop
Air Canada Logo
9:30 am - 3:38 pm
YXU
-
PHL
6h 08m
1 stop
$627Air Canada
Fri, May 1 - Tue, May 5
Air Canada Logo
9:15 am - 9:19 pm
PHL
-
YXU
12h 04m
1 stop
Air Canada Logo
5:40 pm - 10:43 pm
YXU
-
PHL
5h 03m
1 stop
$630Air Canada
Thu, Apr 16 - Thu, Apr 23
Air Canada Logo
6:00 am - 11:43 am
PHL
-
YXU
5h 43m
1 stop
Air Canada Logo
5:40 am - 2:48 pm
YXU
-
PHL
9h 08m
2 stops
$635Air Canada
Fri, May 1 - Tue, May 5
Air Canada Logo
9:15 am - 5:04 pm
PHL
-
YXU
7h 49m
1 stop
Air Canada Logo
5:10 am - 2:46 pm
YXU
-
PHL
9h 36m
2 stops
$639Air Canada
Thu, Apr 16 - Thu, Apr 23
Air Canada Logo
3:25 pm - 9:38 pm
PHL
-
YXU
6h 13m
2 stops
Air Canada Logo
12:20 pm - 9:33 pm
YXU
-
PHL
9h 13m
2 stops
$644Air Canada
Fri, May 1 - Tue, May 5
Air Canada Logo
7:25 am - 5:05 pm
PHL
-
YXU
9h 40m
1 stop
Air Canada Logo
5:40 pm - 10:44 pm
YXU
-
PHL
5h 04m
1 stop
$652Air Canada
Tue, Mar 17 - Fri, Mar 20
Air Canada Logo
7:25 am - 9:21 pm
PHL
-
YXU
13h 56m
1 stop
Air Canada Logo
5:10 am - 2:47 pm
YXU
-
PHL
9h 37m
2 stops
$660Air Canada
Tue, Mar 17 - Fri, Mar 20
Multiple Airlines Logo
10:01 am - 5:20 am
PHL
-
YXU
19h 19m
2 stops
Multiple Airlines Logo
5:55 pm - 9:49 am
YXU
-
PHL
39h 54m
3 stops
$672Multiple Airlines
Fri, May 1 - Tue, May 5

Air Canada flights from Philadelphia to London, Ontario

Our best Air Canada deals on Philadelphia to London, Ontario flight tickets
Air Canada
Jul 9
PHL7:00 amPhiladelphia
4h 45m
1 stop
YXU11:45 amLondon
Jul 12
YXU6:00 amLondon
3h 45m
1 stop
PHL9:45 amPhiladelphia
$605
Air Canada
Jul 9
PHL7:00 amPhiladelphia
4h 45m
1 stop
YXU11:45 amLondon
Jul 12
YXU6:00 amLondon
8h 49m
2 stops
PHL2:49 pmPhiladelphia
$614
Air Canada
May 1
PHL4:20 pmPhiladelphia
5h 18m
1 stop
YXU9:38 pmLondon
May 5
YXU9:30 amLondon
6h 08m
1 stop
PHL3:38 pmPhiladelphia
$627

United Airlines flights from Philadelphia to London, Ontario

Our best United Airlines deals on Philadelphia to London, Ontario flight tickets
United Airlines
Apr 16
PHL6:17 amPhiladelphia
15h 02m
2 stops
YXU9:19 pmLondon
Apr 23
YXU5:40 pmLondon
16h 48m
2 stops
PHL10:28 amPhiladelphia
$749
United Airlines
Apr 16
PHL6:17 amPhiladelphia
26h 27m
2 stops
YXU8:44 amLondon
Apr 23
YXU5:40 pmLondon
16h 48m
2 stops
PHL10:28 amPhiladelphia
$773

momondo Fare Finder

 
Customize your flight search to find flights from Philadelphia to London, Ontario 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, momondo users made 832,500 searches. Data last updated March 6, 2026.
Use the filters below to find and compare flights from Philadelphia to London, Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

PhiladelphiaLondon

PHL - YXU

PHLYXU

Philadelphia

Thu 7/9

7:00 am-11:45 am

1 stop4h 45m

London

Sun 7/12

6:00 am-9:45 am

1 stop3h 45m

$605

PhiladelphiaLondon

PHL - YXU

PHLYXU

Philadelphia

Thu 7/9

7:00 am-11:45 am

1 stop4h 45m

London

Sun 7/12

6:00 am-2:49 pm

2 stops8h 49m

$614

PhiladelphiaLondon

PHL - YXU

PHLYXU

Philadelphia

Fri 5/1

4:20 pm-9:38 pm

1 stop5h 18m

London

Tue 5/5

9:30 am-3:38 pm

1 stop6h 08m

$627

PhiladelphiaLondon

PHL - YXU

PHLYXU

Philadelphia

Thu 4/16

9:15 am-9:19 pm

1 stop12h 04m

London

Thu 4/23

5:40 pm-10:43 pm

1 stop5h 03m

$630

PhiladelphiaLondon

PHL - YXU

PHLYXU

Philadelphia

Fri 5/1

6:00 am-11:43 am

1 stop5h 43m

London

Tue 5/5

5:40 am-2:48 pm

2 stops9h 08m

$635

PhiladelphiaLondon

PHL - YXU

PHLYXU

Philadelphia

Thu 4/16

9:15 am-5:04 pm

1 stop7h 49m

London

Thu 4/23

5:10 am-2:46 pm

2 stops9h 36m

$639

PhiladelphiaLondon

PHL - YXU

PHLYXU

Philadelphia

Fri 5/1

3:25 pm-9:38 pm

2 stops6h 13m

London

Tue 5/5

12:20 pm-9:33 pm

2 stops9h 13m

$644

PhiladelphiaLondon

PHL - YXU

PHLYXU

Philadelphia

Tue 3/17

7:25 am-5:05 pm

1 stop9h 40m

London

Fri 3/20

5:40 pm-10:44 pm

1 stop5h 04m

$652

PhiladelphiaLondon

PHL - YXU

PHLYXU

Philadelphia

Tue 3/17

7:25 am-9:21 pm

1 stop13h 56m

London

Fri 3/20

5:10 am-2:47 pm

2 stops9h 37m

$660

PhiladelphiaLondon

PHL - YXU

PHLYXU

Philadelphia

Fri 5/1

10:01 am-5:20 am

2 stops19h 19m

London

Tue 5/5

5:55 pm-9:49 am

3 stops39h 54m

$672

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
1
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See travel insights to London from

How to get the cheapest flight ticket from Philadelphia to London, Ontario

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Philadelphia to London?

United Airlines and Air Canada are the most popular carriers operating from Philadelphia to London

What airlines fly to London, Ontario?

Air Canada, Porter Airlines and United Airlines are the top three most popular airlines that fly to London, Ontario from Philadelphia according to our data. Air Canada is the first choice among our users, with 43% of people opting to fly with this airline when traveling to London, Ontario. Keep in mind that there are 8 different airlines that fly to London, Ontario on a routine basis, so you have a few additional options to choose from.

When to book flights from Philadelphia to London, Ontario

Are you open to changing your travel dates? Check out the ideal times to fly from Philadelphia to London, Ontario according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Philadelphia to London, Ontario (PHL to YXU) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Philadelphia to London, Ontario

Fastest flight time

4h 54m

Direct flights

None
The fastest flight from Philadelphia to London, Ontario takes 4h 54m
There are no direct flights from Philadelphia to London, Ontario. There are no popular flight routes from Philadelphia to London, Ontario.
Search flight deals

  • How far is Philadelphia to London by plane?

    A flight from Philadelphia to London will travel around 377.5 mi. A reasonable flight in good conditions will take 4h 54m.

  • When did momondo last update prices for flights from Philadelphia Airport to London Airport?

    Prices for flights from Philadelphia Airport to London Airport were last updated today.

  • How many operators does momondo search for flights from Philadelphia Airport to London Airport?

  • How old do you have to be to fly from Philadelphia Airport to London Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Philadelphia Airport to London Airport.

  • What documentation or ID do you need to fly to London Airport?

    The necessary travel and health documents for your London Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Philadelphia to London, Ontario?

Best airlines flying from Philadelphia to London, Ontario

Compare and see reviews for airlines that fly from Philadelphia to London, Ontario with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom $549Free CancellationRating
7.1
10,780 reviews
Search Air Canada flights

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Grand Bend
Port Stanley

Why use momondo?

Why should I use momondo to find a flight deal from Philadelphia to London?

It is quick and easy to find Philadelphia to London flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to London that suits you.

Can I find flights from Philadelphia to London with flexible booking policies on momondo?

Flights from Philadelphia to London with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Philadelphia to London?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to London from Philadelphia.

I’m not ready to book a flight from Philadelphia to London right now. Can momondo alert me if prices change?

If you are simply researching potential flights to London, momondo offers a useful price alert feature which will track prices for flights to London from Philadelphia and alert you when they change.

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