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Cheap flights from San Francisco to Ottawa from C$ 169

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 11/12. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — YOW
28 Nov — 5 Dec1
1 adult
1 adult, Economy, 0 bags

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 Friday or Monday and return on a Thursday

Find flight deals from San Francisco to Ottawa

Enter your travel dates to find the best prices.

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 29 October 2025.

Mon 8/128:43 a.m.SFO - YOW
2 stops27h 01mMultiple Airlines
Thu 11/126:00 a.m.YOW - SFO
1 stop9h 12mMultiple Airlines
Deal found 27/10C$ 456
Tue 2/1210:15 a.m.SFO - YOW
1 stop25h 29mMultiple Airlines
Sun 14/126:00 a.m.YOW - SFO
1 stop9h 12mMultiple Airlines
Deal found 29/10C$ 478
Fri 12/127:00 a.m.SFO - YOW
2 stops14h 40mMultiple Airlines
Sun 14/126:00 a.m.YOW - SFO
1 stop9h 12mMultiple Airlines
Deal found 28/10C$ 500
Tue 25/111:40 p.m.SFO - YOW
1 stop7h 59mMultiple Airlines
Tue 2/126:00 a.m.YOW - SFO
1 stop9h 12mMultiple Airlines
Deal found 27/10C$ 550
Wed 10/121:40 p.m.SFO - YOW
1 stop8h 01mPorter Airlines
Mon 15/126:45 a.m.YOW - SFO
1 stop8h 55mPorter Airlines
Deal found 28/10C$ 580
Fri 12/121:00 p.m.SFO - YOW
1 stop8h 40mMultiple Airlines
Fri 19/126:45 a.m.YOW - SFO
1 stop8h 55mMultiple Airlines
Deal found 28/10C$ 584
Thu 20/1110:15 a.m.SFO - YOW
1 stop30h 50mMultiple Airlines
Sun 23/116:00 a.m.YOW - SFO
1 stop9h 12mMultiple Airlines
Deal found 28/10C$ 585

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 29 October 2025.

Round-trip from

C$ 456

One-way from

C$ 169

Popular in

December

Cheapest in

February

Average price

C$ 750
WestJet
  • WestJet
  • 8/12-11/12
  • 3 total stops
  • 36h 13m total
  • San Francisco to Ottawa
Search Deals
11/12
  • 11/12
  • 1 total stop
  • 25h 29m total
  • San Francisco to Ottawa
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (C$ 127 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (C$ 39 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 629,999 searches. Data last updated 29 October 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

Fri 12/12

7:00 a.m.-12:40 a.m.

2 stops14h 40m

Ottawa

Sun 14/12

6:00 a.m.-12:12 p.m.

1 stop9h 12m

C$ 500

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Tue 25/11

10:15 a.m.-2:44 p.m.

1 stop25h 29m

Ottawa

Tue 2/12

4:15 p.m.-4:51 p.m.

2 stops27h 36m

C$ 598

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Thu 20/11

10:15 a.m.-8:05 p.m.

1 stop30h 50m

Ottawa

Sat 22/11

6:45 p.m.-9:30 a.m.

1 stop17h 45m

C$ 600

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Thu 20/11

10:15 a.m.-2:30 p.m.

2 stops25h 15m

Ottawa

Sun 23/11

6:00 a.m.-12:12 p.m.

1 stop9h 12m

C$ 653

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Tue 16/12

6:00 a.m.-12:41 a.m.

2 stops15h 41m

Ottawa

Tue 23/12

4:20 p.m.-12:10 p.m.

1 stop22h 50m

C$ 695

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Fri 21/11

6:00 a.m.-12:42 a.m.

2 stops15h 42m

Ottawa

Sun 23/11

6:00 a.m.-12:12 p.m.

1 stop9h 12m

C$ 745

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Mon 22/12

6:00 a.m.-12:41 a.m.

2 stops15h 41m

Ottawa

Wed 24/12

9:30 a.m.-11:10 p.m.

1 stop16h 40m

C$ 754

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Tue 16/12

1:40 p.m.-12:42 a.m.

1 stop8h 02m

Ottawa

Wed 24/12

9:30 a.m.-11:10 p.m.

1 stop16h 40m

C$ 780

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Tue 16/12

10:40 p.m.-5:12 p.m.

1 stop15h 32m

Ottawa

Thu 25/12

7:27 p.m.-1:17 a.m.

1 stop8h 50m

C$ 797

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Fri 24/4

12:10 a.m.-1:45 p.m.

1 stop10h 35m

Ottawa

Tue 28/4

4:00 p.m.-9:21 p.m.

1 stop8h 21m

C$ 798

Flights are sorted by cheapest round-trip flights first.

Deals found on 27/10

Showing 1-10 of 18 results
1
2

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 24 October 2025.

To ensure you get the cheapest price possible for a flight from San Francisco to Ottawa, you should look to book at least 81 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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 C$ 198). Flying from San Francisco to Ottawa in November is currently the most expensive (average of C$ 304). 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 29 October 2025.

A simple way to save on the total cost of your ticket is to fly from San Francisco to Ottawa in the afternoon. If you’re flexible enough to do this you can expect to save up to 17% on your trip compared to booking a flight in the evening.

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 29 October 2025.
See what other customers who have flown with Porter Airlines and Air Canada from San Francisco to Ottawa have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
384 reviews
Check prices

Crew

8.6

Entertainment

7.0

Food

7.6

Overall

8.0

Boarding

8.2

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
Check prices

Crew

8.6

Entertainment

7.0

Food

7.6

Overall

8.0

Boarding

8.2

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
10,372 reviews
Porter Airlines
8.0
Very good
384 reviews
Check prices

Crew

8.6

Entertainment

7.0

Food

7.6

Overall

8.0

Boarding

8.2

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.

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

    Our cheapest airline available from San Francisco to Ottawa is Porter Airlines. Our recent data shows that you can find tickets from as low as C$ 198 on this airline. An additional option worth looking into is Air Canada, starting at C$ 406. Porter Airlines is 69% cheaper than the average price of flights available within the next 90 days 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 C$ 198). Flying from San Francisco to Ottawa in November is currently the most expensive (average of C$ 304). 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

Travelling to a place near Ottawa?

Book flights to Ottawa if you plan to visit one of these locations
Gatineau
Brockville
Smiths Falls
Perth
Prescott
Pembroke
Wakefield

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Top 2 airlines flying from San Francisco to Ottawa

Discover the top 2 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 629,999 searches. Data last updated 29 October 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapestC$ 198AverageC$ 531FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air CanadaCheapestC$ 406AverageC$ 717FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

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How does Cheapflights help users find flights from San Francisco to Ottawa?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Ottawa from San Francisco today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from San Francisco to Ottawa?

Millions of users choose and trust Cheapflights to book the best flight deals from San Francisco to Ottawa for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from San Francisco to Ottawa with no change fees?

Yes, we can. To see specific flights from San Francisco to Ottawa with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from San Francisco to Ottawa become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Ottawa from San Francisco today and book when prices fit your budget.

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