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$108+ Cheap flights from San Francisco (SFO) to Ottawa (YOW)

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 6/24. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — YOW
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from San Francisco to Ottawa are usually found in February or April, booked 17 days in advance, depart on a Wednesday or Tuesday and return on a Thursday

Cheap flight deals from San Francisco to Ottawa

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Ottawa (YOW). 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 June 12, 2025.

Round-trip from

$317
(oojo)

One-way from

$108
(Trip.com)

Popular in

December

Cheapest in

February

Average price

$430
From San Francisco to Ottawa
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One-way flight from San Francisco to Ottawa
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Highest demand for flights based on searches. 5% potential increase in price ($25 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from San Francisco to Ottawa

Cheapest flights from San Francisco to Ottawa
Explore the most affordable flight options available from San Francisco to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This oojo deal was found by Cheapflights users on 6/11. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/147:30 amSFO - YOW
1 stop20h 15mWestJet
Mon 8/185:45 amYOW - SFO
1 stop11h 14mWestJet
Deal found 6/11$317
This FlightHub deal was found by Cheapflights users on 6/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/37:30 amSFO - YOW
2 stops13h 52mMultiple Airlines
Wed 9/107:00 amYOW - SFO
1 stop8h 23mMultiple Airlines
Deal found 6/10$321
This Air Canada deal was found by Cheapflights users on 6/11. 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.
Sun 10/511:40 amSFO - YOW
1 stop7h 24mAir Canada
Thu 10/92:40 pmYOW - SFO
1 stop8h 11mAir Canada
Deal found 6/11$329
This Porter Airlines deal was found by Cheapflights users on 6/10. 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 Porter Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/201:25 pmSFO - YOW
1 stop7h 56mPorter Airlines
Wed 6/257:00 amYOW - SFO
1 stop8h 25mPorter Airlines
Deal found 6/10$336
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/277:29 amSFO - YOW
2 stops13h 53mDelta
Sun 8/313:45 pmYOW - SFO
1 stop8h 40mDelta
Deal found 6/10$429

Cheapflights Fare Finder

Customize your flight search to find flights from San Francisco to Ottawa 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 June 12, 2025.
Use the filters below to find and compare flights from San Francisco to Ottawa that are best for you.

Fly from

San Francisco

Fly to

Ottawa

Route

Depart

Return

Price

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Thu 8/14

7:30 am-6:45 am

1 stop20h 15m

Ottawa

Mon 8/18

5:45 am-1:59 pm

1 stop11h 14m

$317

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Wed 9/3

7:30 am-12:22 am

2 stops13h 52m

Ottawa

Wed 9/10

7:00 am-12:23 pm

1 stop8h 23m

$321

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Fri 6/20

1:25 pm-12:21 am

1 stop7h 56m

Ottawa

Wed 6/25

7:00 am-12:25 pm

1 stop8h 25m

$336

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Sun 6/29

11:47 pm-10:24 am

1 stop7h 37m

Ottawa

Thu 7/17

6:00 am-11:15 am

1 stop8h 15m

$393

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Wed 8/27

7:29 am-12:22 am

2 stops13h 53m

Ottawa

Sun 8/31

3:45 pm-9:25 pm

1 stop8h 40m

$429

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Tue 6/24

1:25 pm-12:21 am

1 stop7h 56m

$108

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Wed 8/20

12:50 pm-5:25 am

2 stops13h 35m

$119

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Wed 8/20

7:40 pm-8:19 am

1 stop9h 39m

$123

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Wed 8/20

11:12 am-5:25 am

3 stops15h 13m

$131

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Tue 6/17

6:05 am-12:22 am

2 stops15h 17m

$262

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 11 results
1
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Best time to book a flight from San Francisco to Ottawa

Have a flexible travel schedule? Discover the best time to fly to Ottawa from San Francisco 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 San Francisco to Ottawa

How far ahead should I book a flight from San Francisco to Ottawa?

Use this chart to determine the optimal time to book a round-trip flight from San Francisco to Ottawa. Price data was last updated on June 9, 2025.

The price you pay for your flight from San Francisco to Ottawa may vary depending on when you book. For the best chance of a lower fare, look to book 17 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from San Francisco to Ottawa?

Currently, January is the cheapest month in which you can book a flight from San Francisco to Ottawa (average of $294). Flying from San Francisco to Ottawa in September is currently the most expensive (average of $428). 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.

What is the cheapest time of day to fly from SFO to YOW?

Find hourly flight availability from San Francisco to Ottawa. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

One of the essential ways to save on airfare from San Francisco to Ottawa is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight in the afternoon could potentially save you up to 24% on airfare.

What is the cheapest day to fly from San Francisco to Ottawa?

Use this chart to determine the cheapest time to fly round-trip from San Francisco to Ottawa. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their San Francisco to Ottawa flight should consider departing on Monday afternoons when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Ottawa by month

Plan your trip to Ottawa by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ottawa ranges from 2.0 - 3.7 inches per month. June is typically the wettest month, when rainfall can reach 3.7 in. February is typically the driest time to visit Ottawa when rainfall is around 2.0 in.

Temperature in Ottawa by month

Plan your trip to Ottawa by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ottawa, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 14.0 F).

Reviews of airlines servicing Ottawa

Get insights into the airlines that provide service to Ottawa. 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 Ottawa. Reviews last updated June 12, 2025.
Read through reviews of airlines operating flights from San Francisco to Ottawa, such as Porter Airlines, Delta and United Airlines. 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.
Porter Airlines
8.0
Very good
288 reviews

Entertainment

7.0

Crew

8.7

Overall

8.0

Comfort

8.1

Boarding

8.2

Food

7.6

Reviews

1 / 20
4.0
Okay

Mary,Jun 2025

FLL - YYZ

Fort Lauderdale staff was not helpful at all to try to accommodate my husband and myself to sit together. Also very surprised to get charged USD53 for each of our checked luggage, as when we booked the tickets online, the website indicated that our first checked luggage will be charged CAD50!! Very misleading!!!
Porter Airlines
8.0
Very good
288 reviews
Porter Airlines
8.0
Very good
288 reviews

Entertainment

7.0

Crew

8.7

Overall

8.0

Comfort

8.1

Boarding

8.2

Food

7.6

Reviews

1 / 20
4.0
Okay

Mary,Jun 2025

FLL - YYZ

Fort Lauderdale staff was not helpful at all to try to accommodate my husband and myself to sit together. Also very surprised to get charged USD53 for each of our checked luggage, as when we booked the tickets online, the website indicated that our first checked luggage will be charged CAD50!! Very misleading!!!
Delta
8.0
Very good
7,950 reviews
Porter Airlines
8.0
Very good
288 reviews

Entertainment

7.0

Crew

8.7

Overall

8.0

Comfort

8.1

Boarding

8.2

Food

7.6

Reviews

1 / 20
4.0
Okay

Mary,Jun 2025

FLL - YYZ

Fort Lauderdale staff was not helpful at all to try to accommodate my husband and myself to sit together. Also very surprised to get charged USD53 for each of our checked luggage, as when we booked the tickets online, the website indicated that our first checked luggage will be charged CAD50!! Very misleading!!!
United Airlines
7.4
Good
8,790 reviews
Porter Airlines
8.0
Very good
288 reviews

Entertainment

7.0

Crew

8.7

Overall

8.0

Comfort

8.1

Boarding

8.2

Food

7.6

Reviews

1 / 20
4.0
Okay

Mary,Jun 2025

FLL - YYZ

Fort Lauderdale staff was not helpful at all to try to accommodate my husband and myself to sit together. Also very surprised to get charged USD53 for each of our checked luggage, as when we booked the tickets online, the website indicated that our first checked luggage will be charged CAD50!! Very misleading!!!
WestJet
7.2
Good
2,868 reviews
Porter Airlines
8.0
Very good
288 reviews

Entertainment

7.0

Crew

8.7

Overall

8.0

Comfort

8.1

Boarding

8.2

Food

7.6

Reviews

1 / 20
4.0
Okay

Mary,Jun 2025

FLL - YYZ

Fort Lauderdale staff was not helpful at all to try to accommodate my husband and myself to sit together. Also very surprised to get charged USD53 for each of our checked luggage, as when we booked the tickets online, the website indicated that our first checked luggage will be charged CAD50!! Very misleading!!!
Air Canada
7.1
Good
9,531 reviews
Porter Airlines
8.0
Very good
288 reviews

Entertainment

7.0

Crew

8.7

Overall

8.0

Comfort

8.1

Boarding

8.2

Food

7.6

Reviews

1 / 20
4.0
Okay

Mary,Jun 2025

FLL - YYZ

Fort Lauderdale staff was not helpful at all to try to accommodate my husband and myself to sit together. Also very surprised to get charged USD53 for each of our checked luggage, as when we booked the tickets online, the website indicated that our first checked luggage will be charged CAD50!! Very misleading!!!

Related info for your journey

Find useful and relevant information for your journey from San Francisco to Ottawa. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from San Francisco to Ottawa round-trip?

    Flying on WestJet is currently your cheapest option to Ottawa, with prices starting at $317. Additional round-trip tickets that might be worth considering are offered by Porter Airlines and Air Canada, with the lowest prices starting at $336 and $393, respectively. Users have found that WestJet is 30% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from San Francisco to Ottawa one-way?

    The cheapest airlines for a one-way flight from San Francisco to Ottawa are Porter Airlines ($108), WestJet ($119), and Air Canada ($123).

  • Can I find deals for flights from San Francisco to Ottawa that include hotel bookings?

    Yes. In addition to deals on San Francisco to Ottawa flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Francisco to Ottawa?

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

  • Can I find deals for business class flights from San Francisco to Ottawa?

    Yes. Cheapflights offers flight deals from San Francisco to Ottawa 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 San Francisco to Ottawa?

    Currently, January is the cheapest month in which you can book a flight from San Francisco to Ottawa (average of $294). Flying from San Francisco to Ottawa in September is currently the most expensive (average of $428). 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 San Francisco?

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Alternative routes for San Francisco to Ottawa

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Top 4 airlines flying from San Francisco to Ottawa

Discover the top 4 airlines that operate flights from San Francisco to Ottawa. 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapest$254Average$423FlexibilityNo cancel feeOn-time60%
Porter AirlinesCheapest$272Average$423FlexibilityNo cancel feeOn-time52%
United AirlinesCheapest$281Average$594FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$308Average$562FlexibilityNo cancel feeOn-time67%

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