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Cheap flights from San Francisco to Ottawa from C$ 236

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 13/3. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — YOW
26 Feb — 5 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap 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 27 January 2026.

Thu 12/31:00 p.m.
SFO
-
YOW
1 stop8h 40m
WestJet
Thu 19/36:00 a.m.
YOW
-
SFO
1 stop9h 10m
WestJet
Deal found 27/1C$ 460
Fri 22/56:05 p.m.
SFO
-
YOW
1 stop8h 35m
WestJet
Sun 31/512:25 p.m.
YOW
-
SFO
2 stops12h 30m
WestJet
Deal found 27/1C$ 466
Thu 12/31:00 p.m.
SFO
-
YOW
1 stop8h 40m
Multiple Airlines
Thu 19/35:40 a.m.
YOW
-
SFO
2 stops29h 18m
Multiple Airlines
Deal found 27/1C$ 482
Tue 17/310:15 a.m.
SFO
-
YOW
2 stops24h 46m
Multiple Airlines
Tue 21/46:00 a.m.
YOW
-
SFO
1 stop9h 10m
Multiple Airlines
Deal found 27/1C$ 526
Tue 17/310:15 a.m.
SFO
-
YOW
1 stop25h 29m
Multiple Airlines
Wed 25/35:40 a.m.
YOW
-
SFO
2 stops18h 58m
Multiple Airlines
Deal found 27/1C$ 563
Tue 24/210:58 p.m.
SFO
-
YOW
2 stops22h 00m
Multiple Airlines
Tue 3/33:55 p.m.
YOW
-
SFO
1 stop33h 06m
Multiple Airlines
Deal found 27/1C$ 576
Wed 11/310:38 p.m.
SFO
-
YOW
2 stops22h 47m
Multiple Airlines
Wed 18/35:40 a.m.
YOW
-
SFO
1 stop10h 02m
Multiple Airlines
Deal found 26/1C$ 578

Find 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 27 January 2026.

Round-trip from

C$ 434

One-way from

C$ 236

Popular in

December

Cheapest in

February

Average price

C$ 618
WestJet
  • WestJet
  • 23/5-2/6
  • 4 total stops
  • 27h 37m total
  • San Francisco to Ottawa
Search Deals
13/3
  • 13/3
  • 2 total stops
  • 22h 01m total
  • San Francisco to Ottawa
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (C$ 146 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 32 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
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 27 January 2026.
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 12/3

1:00 p.m.-12:40 a.m.

1 stop8h 40m

Ottawa

Thu 19/3

6:00 a.m.-12:10 p.m.

1 stop9h 10m

C$ 460

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Thu 12/3

1:00 p.m.-12:40 a.m.

1 stop8h 40m

Ottawa

Thu 19/3

5:40 a.m.-7:58 a.m.

2 stops29h 18m

C$ 482

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Fri 22/5

6:05 p.m.-5:40 a.m.

1 stop8h 35m

Ottawa

Sun 31/5

1:20 p.m.-12:00 p.m.

1 stop25h 40m

C$ 515

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Tue 17/3

10:15 a.m.-2:01 p.m.

2 stops24h 46m

Ottawa

Tue 21/4

6:00 a.m.-12:10 p.m.

1 stop9h 10m

C$ 526

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Tue 24/2

10:58 p.m.-11:58 p.m.

2 stops22h 00m

Ottawa

Tue 3/3

3:55 p.m.-10:01 p.m.

1 stop33h 06m

C$ 576

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Wed 11/3

10:38 p.m.-12:25 a.m.

2 stops22h 47m

Ottawa

Wed 18/3

5:40 a.m.-12:42 p.m.

1 stop10h 02m

C$ 578

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Sat 14/3

7:32 p.m.-12:39 a.m.

2 stops26h 07m

Ottawa

Tue 17/3

6:45 a.m.-12:42 p.m.

1 stop8h 57m

C$ 601

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Tue 17/3

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

1 stop25h 29m

Ottawa

Wed 25/3

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

1 stop17h 45m

C$ 604

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Thu 12/2

1:45 p.m.-12:43 a.m.

1 stop7h 58m

C$ 241

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Wed 18/2

10:58 p.m.-12:25 a.m.

2 stops22h 27m

C$ 246

Flights are sorted by cheapest round-trip flights first.

Deals found on 26/1

Showing 1-10 of 15 results
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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 23 January 2026.

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$ 194). Flying from San Francisco to Ottawa in November is currently the most expensive (average of C$ 448). 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.

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 27 January 2026.
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
7.9
Good
412 reviews
Check prices

Food

7.5

Overall

7.9

Crew

8.6

Comfort

7.9

Boarding

8.2

Entertainment

6.9

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
Porter Airlines
7.9
Good
412 reviews
Porter Airlines
7.9
Good
412 reviews
Check prices

Food

7.5

Overall

7.9

Crew

8.6

Comfort

7.9

Boarding

8.2

Entertainment

6.9

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
Air Canada
7.1
Good
10,660 reviews
Porter Airlines
7.9
Good
412 reviews
Check prices

Food

7.5

Overall

7.9

Crew

8.6

Comfort

7.9

Boarding

8.2

Entertainment

6.9

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

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?

    Airlines like WestJet fly from San Francisco to Ottawa in about 8h 40m. The time it takes to get you to your destination can typically vary by up to . The distance between San Francisco and Ottawa is about 3925 km.

  • 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$ 194 on this airline. An additional option worth looking into is Air Canada, starting at C$ 400. Porter Airlines is 69% cheaper than the average price of flights available within the next 90 days to this destination.

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

    One-way options have recently been found by users for as low as C$ 171 on WestJet. Other airlines that offer cheap prices include Air Canada from C$ 194 and Porter Airlines from C$ 210 one-way.

  • 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$ 194). Flying from San Francisco to Ottawa in November is currently the most expensive (average of C$ 448). 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
Pembroke
Wakefield

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Alternative routes for San Francisco to Ottawa

See prices for flight routes from nearby airports that may be better suited for you.
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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 27 January 2026.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapestC$ 194AverageC$ 522FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air CanadaCheapestC$ 400AverageC$ 705FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

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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