$287 Cheap Flights from Ottawa (YOW) to Philadelphia (PHL)

View $287 flight on Thu, Oct 16, 2025Opens in a new window

Popular airlines from Ottawa International Airport (YOW) to Philadelphia Intl. Airport (PHL)

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Cheap Flights from Ottawa to Philadelphia (YOW-PHL)

Prices were available within the past 7 days and start at $287 for one-way flights and $506 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Sun, Sep 28 - Tue, Sep 30
YOW
Ottawa
PHL
Philadelphia
$506 Roundtrip, found 6 days ago
$506
Roundtrip
found 6 days ago
Select Air Canada flight, departing Sun, Sep 28 from Ottawa to Philadelphia, returning Tue, Sep 30, priced at $506 found 6 days ago
Air Canada
Tue, Sep 16 - Thu, Oct 2
YOW
Ottawa
PHL
Philadelphia
$507 Roundtrip, found 3 days ago
$507
Roundtrip
found 3 days ago
Select Air Canada flight, departing Tue, Sep 16 from Ottawa to Philadelphia, returning Thu, Oct 2, priced at $507 found 3 days ago
Air Canada
Sun, Sep 28 - Tue, Sep 30
YOW
Ottawa
PHL
Philadelphia
$512 Roundtrip, found 6 days ago
$512
Roundtrip
found 6 days ago
Select Air Canada flight, departing Sun, Sep 28 from Ottawa to Philadelphia, returning Tue, Sep 30, priced at $512 found 6 days ago
Air Canada
Wed, Sep 10 - Sun, Sep 28
YOW
Ottawa
PHL
Philadelphia
$514 Roundtrip, found 3 days ago
$514
Roundtrip
found 3 days ago
Select Air Canada flight, departing Wed, Sep 10 from Ottawa to Philadelphia, returning Sun, Sep 28, priced at $514 found 3 days ago
Air Canada
Sun, Sep 28 - Tue, Sep 30
YOW
Ottawa
PHL
Philadelphia
$519 Roundtrip, found 6 days ago
$519
Roundtrip
found 6 days ago
Select Air Canada flight, departing Sun, Sep 28 from Ottawa to Philadelphia, returning Tue, Sep 30, priced at $519 found 6 days ago
Air Canada
Sun, Oct 19 - Tue, Oct 28
YOW
Ottawa
PHL
Philadelphia
$520 Roundtrip, found 3 days ago
$520
Roundtrip
found 3 days ago
Select Air Canada flight, departing Sun, Oct 19 from Ottawa to Philadelphia, returning Tue, Oct 28, priced at $520 found 3 days ago
Air Canada
Wed, Oct 15 - Fri, Oct 31
YOW
Ottawa
PHL
Philadelphia
$531 Roundtrip, found 3 days ago
$531
Roundtrip
found 3 days ago
Select Air Canada flight, departing Wed, Oct 15 from Ottawa to Philadelphia, returning Fri, Oct 31, priced at $531 found 3 days ago
Air Canada
Sat, Aug 23 - Thu, Sep 11
YOW
Ottawa
PHL
Philadelphia
$533 Roundtrip, found 3 days ago
$533
Roundtrip
found 3 days ago
Select Air Canada flight, departing Sat, Aug 23 from Ottawa to Philadelphia, returning Thu, Sep 11, priced at $533 found 3 days ago
United
Sat, Aug 9 - Sun, Aug 10
YOW
Ottawa
PHL
Philadelphia
$591 Roundtrip, found 1 day ago
$591
Roundtrip
found 1 day ago
Select United flight, departing Sat, Aug 9 from Ottawa to Philadelphia, returning Sun, Aug 10, priced at $591 found 1 day ago
Delta
Wed, Jul 9 - Tue, Jul 22
YOW
Ottawa
PHL
Philadelphia
$812 Roundtrip, found 3 days ago
$812
Roundtrip
found 3 days ago
Select Delta flight, departing Wed, Jul 9 from Ottawa to Philadelphia, returning Tue, Jul 22, priced at $812 found 3 days ago

Find the cheapest month to fly from Ottawa (YOW) to Philadelphia (PHL)

September is typically the cheapest month to fly

From $402 - $689 per traveler.

Graph displaying average flight prices per month

Flights from Ottawa (YOW) to Philadelphia (PHL)
Origin airport
Macdonald-Cartier Intl.
Destination airport
Philadelphia Intl.
Airlines serving
Air Canada, United
Roundtrip price
$505
Distance
376 mi

Ottawa to Philadelphia Flights

The cheapest times to fly from Ottawa to Philadelphia

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Ottawa to Philadelphia are during the month of September. You can find some of the cheapest flights from Ottawa to Philadelphia with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Ottawa to Philadelphia

Sunday is one of the best days to book for cheap flights from Ottawa to Philadelphia: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Ottawa to Philadelphia

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Ottawa to Philadelphia in 2025. You can also book with separate airlines for your outbound and return journeys, from $287 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Ottawa to Philadelphia flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Ottawa to Philadelphia airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Macdonald-Cartier Intl. Airport (YOW) to Philadelphia Intl. Airport (PHL) cost?
Discover the latest flight deals from YOW to PHL by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from YOW to PHL?
The cheapest flights from YOW to PHL are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from YOW to PHL?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from YOW to PHL. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Macdonald-Cartier Intl. Airport (YOW) to Philadelphia Intl. Airport (PHL)?
Direct flights from Macdonald-Cartier Intl. Airport (YOW) to Philadelphia Intl. Airport (PHL) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filters. Enter your travel details and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from YOW to PHL?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Remember that flight schedules can change depending on various factors, including the time of year and carrier.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What airline has the least delays from YOW to PHL?
Consider booking with American Airlines if you'd like to fly straight from Macdonald-Cartier Intl. Airport (YOW) to Philadelphia Intl. Airport (PHL) without any interruptions. This carrier has the strongest track record for punctuality, with an on-time performance of 84%. Want to be notified if anything changes? You can check your flight status using the Expedia App.
What is the best time to fly from Macdonald-Cartier Intl. Airport (YOW) to Philadelphia Intl. Airport (PHL)?
To touch down at Philadelphia Intl. Airport (PHL) without delays, opt for a flight that leaves Macdonald-Cartier Intl. Airport (YOW) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Macdonald-Cartier Intl. Airport (YOW) to Philadelphia Intl. Airport (PHL) last-minute?
Last-minute bookings from YOW to PHL are usually more expensive. To secure the best rates, start searching for flights as soon as possible. That being said, if you're flexible with your travel dates, you may land a cheap fare right before your journey.
Is it cheaper to book a YOW to PHL flight and hotel package?
Booking a YOW to PHL flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels all in one place. Pick from our wide range of accommodations and then add car rentals, activities and flights to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Macdonald-Cartier Intl. Airport (YOW) to Philadelphia Intl. Airport (PHL)?
If you reserved your YOW to PHL flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal for more information.

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*Available to One Key members.