$177 Cheap Flights from San Francisco (SFO) to Ottawa (YOW)

View $177 flight on Sat, Sep 12, 2026Opens in a new window

Popular airlines from San Francisco Intl. Airport (SFO) to Ottawa International Airport (YOW)

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Cheap Flights from San Francisco to Ottawa (SFO-YOW)

Prices were available within the past 7 days and start at $177 for one-way flights and $407 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

WestJet
Thu, Oct 22 - Sun, Oct 25
SFO
San Francisco
YOW
Ottawa
$407 Roundtrip, found 4 hours ago
$407
Roundtrip
found 4 hours ago
Select WestJet flight, departing Thu, Oct 22 from San Francisco to Ottawa, returning Sun, Oct 25, priced at $407 found 4 hours ago
WestJet
Thu, Sep 24 - Sat, Oct 3
SFO
San Francisco
YOW
Ottawa
$438 Roundtrip, found 1 hour ago
$438
Roundtrip
found 1 hour ago
Select WestJet flight, departing Thu, Sep 24 from San Francisco to Ottawa, returning Sat, Oct 3, priced at $438 found 1 hour ago
WestJet
Sun, Sep 13 - Mon, Sep 14
SFO
San Francisco
YOW
Ottawa
$438 Roundtrip, found 5 days ago
$438
Roundtrip
found 5 days ago
Select WestJet flight, departing Sun, Sep 13 from San Francisco to Ottawa, returning Mon, Sep 14, priced at $438 found 5 days ago
WestJet
Fri, Sep 18 - Mon, Sep 21
SFO
San Francisco
YOW
Ottawa
$446 Roundtrip, found 3 days ago
$446
Roundtrip
found 3 days ago
Select WestJet flight, departing Fri, Sep 18 from San Francisco to Ottawa, returning Mon, Sep 21, priced at $446 found 3 days ago
WestJet
Mon, Sep 14 - Tue, Sep 15
SFO
San Francisco
YOW
Ottawa
$449 Roundtrip, found 3 days ago
$449
Roundtrip
found 3 days ago
Select WestJet flight, departing Mon, Sep 14 from San Francisco to Ottawa, returning Tue, Sep 15, priced at $449 found 3 days ago
WestJet
Wed, Sep 30 - Fri, Oct 30
SFO
San Francisco
YOW
Ottawa
$450 Roundtrip, found 3 days ago
$450
Roundtrip
found 3 days ago
Select WestJet flight, departing Wed, Sep 30 from San Francisco to Ottawa, returning Fri, Oct 30, priced at $450 found 3 days ago
Porter Airlines
Fri, Aug 28 - Fri, Sep 4
SFO
San Francisco
YOW
Ottawa
$488 Roundtrip, found 5 days ago
$488
Roundtrip
found 5 days ago
Select Porter Airlines flight, departing Fri, Aug 28 from San Francisco to Ottawa, returning Fri, Sep 4, priced at $488 found 5 days ago
United
Mon, Nov 2 - Tue, Nov 3
SFO
San Francisco
YOW
Ottawa
$614 Roundtrip, found 4 days ago
$614
Roundtrip
found 4 days ago
Select United flight, departing Mon, Nov 2 from San Francisco to Ottawa, returning Tue, Nov 3, priced at $614 found 4 days ago
Air Canada
Wed, Aug 12 - Thu, Aug 13
SFO
San Francisco
YOW
Ottawa
$614 Roundtrip, found 4 days ago
$614
Roundtrip
found 4 days ago
Select Air Canada flight, departing Wed, Aug 12 from San Francisco to Ottawa, returning Thu, Aug 13, priced at $614 found 4 days ago
American Airlines
Thu, Sep 24 - Sat, Oct 3
SFO
San Francisco
YOW
Ottawa
$688 Roundtrip, found 1 hour ago
$688
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Thu, Sep 24 from San Francisco to Ottawa, returning Sat, Oct 3, priced at $688 found 1 hour ago

Alternative airports near Ottawa

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Macdonald-Cartier Intl. YOW. Cheapest option available. Average driving time to city center is 15 minutes. Flights from $882
YOW
Macdonald-Cartier Intl.
Cheapest
Average driving time to city center15 min
Flights from $882

Frequently asked questions

How much does a flight from San Francisco, CA (SFO-San Francisco Intl.) to Ottawa, ON (YOW-Macdonald-Cartier Intl.) cost?
You can find cheap one-way flights from $177 and cheap return flights from $407 San Francisco, CA (SFO-San Francisco Intl.) to Ottawa, ON (YOW-Macdonald-Cartier Intl.) with Expedia. One-way flights generally range between $220 and $1584, and roundtrip flights usually range from $496 to $2541. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when San Francisco, CA (SFO-San Francisco Intl.) to Ottawa, ON (YOW-Macdonald-Cartier Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from San Francisco, CA (SFO-San Francisco Intl.) to Ottawa, ON (YOW-Macdonald-Cartier Intl.)?
February is the cheapest month to fly from San Francisco (SFO) to Ottawa (YOW), with average return fares around $283. This is about 26% lower than the average price throughout the year, as winter travel tends to be less busy. Other economical months to consider are March and September.*Averages based on flights available on Expedia in the last year.
Which airlines fly direct from San Francisco, CA (SFO-San Francisco Intl.) to Ottawa, ON (YOW-Macdonald-Cartier Intl.)?
Enter SFO to YOW and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from San Francisco, CA (SFO-San Francisco Intl.) to Ottawa, ON (YOW-Macdonald-Cartier Intl.)?
JetBlue Airways is one of the cheapest airlines offering connecting flights from San Francisco Intl. (SFO) to Macdonald-Cartier Intl. (YOW), with round-trip tickets starting from around $555 with a layover in Logan Intl. (BOS). Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from San Francisco, CA (SFO-San Francisco Intl.) to Ottawa, ON (YOW-Macdonald-Cartier Intl.)?
To find a cheap flight from San Francisco, CA (SFO-San Francisco Intl.) to Ottawa, ON (YOW-Macdonald-Cartier Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from San Francisco, CA (SFO-San Francisco Intl.) to Ottawa, ON (YOW-Macdonald-Cartier Intl.)?
For your journey from San Francisco, CA (SFO) to Ottawa, ON (YOW), February and March are the best months to fly. Expect to pay around $460 for a return flight. February is often less crowded, while March brings the first signs of spring, making it a lovely time to visit the Canadian capital.*Prices based on flights available on Expedia in the last year.
What is the earliest flight from San Francisco, CA (SFO-San Francisco Intl.) to Ottawa, ON (YOW-Macdonald-Cartier Intl.)?
The earliest flight from San Francisco International Airport (SFO) to Macdonald-Cartier International Airport (YOW) usually departs at around 12:05 AM. This seasonal service is operated by United and Air Canada, giving you an early start to your trip to Ottawa. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from San Francisco, CA (SFO-San Francisco Intl.) to Ottawa, ON (YOW-Macdonald-Cartier Intl.)?
The most popular departure times for flights from San Francisco, CA (SFO-San Francisco Intl.) to Ottawa, ON (YOW-Macdonald-Cartier Intl.) are in the early morning, from 6am to 9am. About 40% of passengers prefer this time window. Many major carriers, including United and Air Canada, offer flights during this window. This timing works well because it allows you to arrive in Ottawa with a full day to explore.
How long does it take to fly from San Francisco, CA (SFO-San Francisco Intl.) to Ottawa, ON (YOW-Macdonald-Cartier Intl.)?
Flights from SFO to YOW with one stop typically take around 8 hours 20 minutes, covering approximately 2,441 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from San Francisco, CA (SFO-San Francisco Intl.) to Ottawa, ON (YOW-Macdonald-Cartier Intl.)?
Business class seats are offered on the SFO to YOW route with Air Canada and United Airlines.First class cabins are available on:

  • United Airlines
  • Delta Air Lines
  • WestJet

How do I earn miles on a San Francisco, CA (SFO-San Francisco Intl.) to Ottawa, ON (YOW-Macdonald-Cartier Intl.) flight with Expedia?
It's easy to earn miles on a San Francisco, CA (SFO-San Francisco Intl.) to Ottawa, ON (YOW-Macdonald-Cartier Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Ottawa from San Francisco Intl. (SFO)?
If you're planning to travel to Ottawa from San Francisco Intl. (SFO), you can fly into Macdonald-Cartier Intl. (YOW) Some flights may connect through major hubs like Los Angeles Intl. (LAX), Harry Reid Intl. (LAS), Denver Intl. (DEN) before reaching Ottawa. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from San Francisco, CA (SFO-San Francisco Intl.) to Ottawa, ON (YOW-Macdonald-Cartier Intl.) at the last minute?
Typically, booking a last minute flight from San Francisco, CA (SFO-San Francisco Intl.) to Ottawa, ON (YOW-Macdonald-Cartier Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a San Francisco, CA (SFO-San Francisco Intl.) to Ottawa, ON (YOW-Macdonald-Cartier Intl.) flight and hotel package?
Securing a San Francisco, CA (SFO-San Francisco Intl.) to Ottawa, ON (YOW-Macdonald-Cartier Intl.) Ottawa Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from San Francisco, CA (SFO-San Francisco Intl.) to Ottawa, ON (YOW-Macdonald-Cartier Intl.)?
If you booked your San Francisco, CA (SFO-San Francisco Intl.) to Ottawa, ON (YOW-Macdonald-Cartier Intl.) 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 have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
San Francisco Intl.
Destination airport
Macdonald-Cartier Intl.
Airlines serving
Air Canada, American Airlines, Porter Airlines, United, WestJet
Roundtrip price
$407
Distance
2440 mi

Book with confidence

San Francisco to Ottawa Flights

The cheapest times to fly from San Francisco to Ottawa

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 San Francisco to Ottawa are during the month of October. You can find some of the cheapest flights from San Francisco to Ottawa with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from San Francisco to Ottawa

Sunday is one of the best days to book for cheap flights from San Francisco to Ottawa: 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 San Francisco to Ottawa

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 San Francisco to Ottawa in 2026. You can also book with separate airlines for your outbound and return journeys, from $177 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 San Francisco to Ottawa 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 San Francisco to Ottawa 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.

 

San Francisco to Ottawa Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

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