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Ottawa

$121+ 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 12/11. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — YOW
Nov 27 — Dec 41
Thu 11/27
Thu 12/4
1 adult, Economy
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Find cheap flights from San Francisco to Ottawa with Cheapflights

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Cheapflights Tip: The best prices from San Francisco to Ottawa are usually found in February or June, booked 81 days in advance, depart on a Wednesday or Tuesday and return on a Thursday

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 October 28, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/88:43 amSFO - YOW
2 stops27h 01mMultiple Airlines
Thu 12/116:00 amYOW - SFO
1 stop9h 12mMultiple Airlines
Deal found 10/27$327
This FlightHub deal was found by Cheapflights users on 10/27. 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.
Tue 11/251:40 pmSFO - YOW
1 stop7h 59mMultiple Airlines
Tue 12/26:00 amYOW - SFO
1 stop9h 12mMultiple Airlines
Deal found 10/27$395
This Flightnetwork deal was found by Cheapflights users on 10/28. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/121:00 pmSFO - YOW
1 stop8h 40mMultiple Airlines
Fri 12/196:45 amYOW - SFO
1 stop8h 55mMultiple Airlines
Deal found 10/28$419
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/1610:10 pmSFO - YOW
2 stops23h 30mMultiple Airlines
Wed 12/249:30 amYOW - SFO
1 stop16h 40mMultiple Airlines
Deal found 10/27$439
This Mytrip deal was found by Cheapflights users on 10/26. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/101:40 pmSFO - YOW
1 stop8h 01mPorter Airlines
Wed 12/176:45 amYOW - SFO
1 stop8h 55mPorter Airlines
Deal found 10/26$444
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/176:30 amSFO - YOW
2 stops31h 43mMultiple Airlines
Tue 1/64:20 pmYOW - SFO
1 stop33h 09mMultiple Airlines
Deal found 10/27$449
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/176:30 amSFO - YOW
2 stops31h 43mMultiple Airlines
Wed 12/249:30 amYOW - SFO
1 stop16h 40mMultiple Airlines
Deal found 10/27$453
This Kiwi.com deal was found by Cheapflights users on 10/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/106:30 amSFO - YOW
2 stops31h 43mMultiple Airlines
Wed 12/176:45 amYOW - SFO
1 stop8h 55mMultiple Airlines
Deal found 10/26$454
This Kiwi.com deal was found by Cheapflights users on 10/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/147:00 amSFO - YOW
1 stop31h 06mMultiple Airlines
Mon 11/176:45 pmYOW - SFO
1 stop17h 45mMultiple Airlines
Deal found 10/26$466

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 October 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$327
(Kiwi.com)

One-way from

$121
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$538
Provider with most accurate pricing for San Francisco-Ottawa flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Francisco-Ottawa flights.
Search Deals
From San Francisco to Ottawa
Search Deals
One-way flight from San Francisco to Ottawa
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($66 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($20 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

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 October 28, 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

Tue 11/25

1:40 pm-12:39 am

1 stop7h 59m

Ottawa

Tue 12/2

6:00 am-12:12 pm

1 stop9h 12m

$395

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Fri 11/14

7:00 am-5:06 pm

1 stop31h 06m

Ottawa

Mon 11/17

6:45 pm-9:30 am

1 stop17h 45m

$466

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Sat 11/15

1:40 pm-12:39 am

1 stop7h 59m

Ottawa

Sun 11/16

6:45 am-12:40 pm

1 stop8h 55m

$482

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Tue 12/16

6:00 am-12:41 am

2 stops15h 41m

Ottawa

Tue 12/23

4:20 pm-12:10 pm

1 stop22h 50m

$499

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Mon 12/22

6:00 am-12:41 am

2 stops15h 41m

Ottawa

Wed 12/24

9:30 am-11:10 pm

1 stop16h 40m

$541

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Tue 12/16

10:40 pm-5:12 pm

1 stop15h 32m

Ottawa

Thu 12/25

7:27 pm-1:17 am

1 stop8h 50m

$572

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Fri 4/24

12:10 am-1:45 pm

1 stop10h 35m

Ottawa

Tue 4/28

4:00 pm-9:21 pm

1 stop8h 21m

$573

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Tue 12/16

7:00 am-5:12 pm

1 stop7h 12m

Ottawa

Sat 12/27

6:15 am-9:29 pm

1 stop18h 14m

$617

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Tue 12/16

6:00 am-12:41 am

2 stops15h 41m

Ottawa

Sun 12/21

6:45 am-12:40 pm

1 stop8h 55m

$624

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Thu 12/18

1:40 pm-12:42 am

1 stop8h 02m

Ottawa

Tue 12/23

4:20 pm-12:10 pm

1 stop22h 50m

$626

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Showing 1-10 of 18 results
1
2

Compare providers for flights from San Francisco to Ottawa

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Francisco to Ottawa in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on San Francisco-Ottawa flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on San Francisco-Ottawa flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from San Francisco-Ottawa flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Francisco-Ottawa flights, Cheapflights users trust eDreams the most. eDreams 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 San Francisco-Ottawa 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 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 October 24, 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 81 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, September is the cheapest month in which you can book a flight from San Francisco to Ottawa (average of $142). Flying from San Francisco to Ottawa in November is currently the most expensive (average of $218). 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 October 28, 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 23% 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 afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 October 28, 2025.
Get a feel of what it's like to fly with Porter Airlines, United Airlines, and WestJet from San Francisco to Ottawa by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
384 reviews

Entertainment

7.0

Boarding

8.2

Crew

8.6

Food

7.6

Overall

8.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Porter Airlines
8.0
Very good
384 reviews
Porter Airlines
8.0
Very good
384 reviews

Entertainment

7.0

Boarding

8.2

Crew

8.6

Food

7.6

Overall

8.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
United Airlines
7.4
Good
8,996 reviews
Porter Airlines
8.0
Very good
384 reviews

Entertainment

7.0

Boarding

8.2

Crew

8.6

Food

7.6

Overall

8.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
WestJet
7.2
Good
3,148 reviews
Porter Airlines
8.0
Very good
384 reviews

Entertainment

7.0

Boarding

8.2

Crew

8.6

Food

7.6

Overall

8.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Air Canada
7.1
Good
10,370 reviews
Porter Airlines
8.0
Very good
384 reviews

Entertainment

7.0

Boarding

8.2

Crew

8.6

Food

7.6

Overall

8.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.

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.

  • How long is the flight from San Francisco to Ottawa?

    There are many flights that can get you from San Francisco to Ottawa in 7h 59m. Fly via Porter Airlines to get the fastest option. There are 2439 mi between San Francisco and Ottawa.

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

    Flying on Porter Airlines is currently your cheapest option to Ottawa, with prices starting at $255. Additional round-trip tickets that might be worth considering are offered by WestJet and United Airlines, with the lowest prices starting at $269 and $281, respectively. Users have found that Porter Airlines is 44% cheaper than the other options available to this destination.

  • 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, September is the cheapest month in which you can book a flight from San Francisco to Ottawa (average of $142). Flying from San Francisco to Ottawa in November is currently the most expensive (average of $218). 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 Ottawa?

Book flights to Ottawa if you plan to visit one of these locations
Gatineau
Petawawa

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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 October 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapest$255Average$324FlexibilityNo cancel feeOn-time52%
WestJetCheapest$269Average$413FlexibilityNo cancel feeOn-time60%
United AirlinesCheapest$281Average$549FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$305Average$485FlexibilityNo cancel feeOn-time67%

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