Find flights
When to book
Airlines
FAQs

Cheap flights from San Francisco to Ottawa from C$ 185

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 25/1. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — YOW
11 Jan — 18 Jan1
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

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 12 December 2025.

Tue 30/121:40 p.m.SFO - YOW
1 stop8h 01mMultiple Airlines
Thu 15/16:00 a.m.YOW - SFO
1 stop9h 12mMultiple Airlines
Deal found 10/12C$ 741
Sat 27/1210:15 a.m.SFO - YOW
1 stop25h 29mMultiple Airlines
Sat 3/15:40 a.m.YOW - SFO
2 stops29h 08mMultiple Airlines
Deal found 11/12C$ 1,194
Sat 20/121:19 p.m.SFO - YOW
2 stops25h 06mMultiple Airlines
Tue 23/126:00 a.m.YOW - SFO
1 stop9h 12mMultiple Airlines
Deal found 10/12C$ 1,360
Sat 27/1211:05 p.m.SFO - YOW
1 stop15h 13mUnited Airlines
Sat 3/17:27 p.m.YOW - SFO
1 stop17h 15mUnited Airlines
Deal found 11/12C$ 1,434
Tue 30/1210:49 p.m.SFO - YOW
3 stops15h 02mAmerican Airlines
Thu 15/16:45 a.m.YOW - SFO
3 stops16h 25mAmerican Airlines
Deal found 10/12C$ 1,470
Sat 20/128:50 p.m.SFO - YOW
2 stops17h 28mUnited Airlines
Tue 23/1212:05 p.m.YOW - SFO
2 stops12h 15mUnited Airlines
Deal found 10/12C$ 1,687
Sat 27/1210:49 p.m.SFO - YOW
2 stops22h 52mAmerican Airlines
Sat 3/110:00 a.m.YOW - SFO
2 stops12h 44mAmerican Airlines
Deal found 11/12C$ 1,694
Sat 20/1210:49 p.m.SFO - YOW
2 stops22h 52mAmerican Airlines
Tue 23/129:10 a.m.YOW - SFO
3 stops16h 48mAmerican Airlines
Deal found 10/12C$ 1,721

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 12 December 2025.

Round-trip from

C$ 410

One-way from

C$ 185

Popular in

December

Cheapest in

February

Average price

C$ 1,055
WestJet
  • WestJet
  • 16/1-22/1
  • 2 total stops
  • 17h 52m total
  • San Francisco to Ottawa
Search Deals
25/1
  • 25/1
  • 3 total stops
  • 29h 06m total
  • San Francisco to Ottawa
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (C$ 189 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (C$ 52 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 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 12 December 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

Sun 25/1

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

1 stop8h 40m

Ottawa

Thu 29/1

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

1 stop9h 12m

C$ 410

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Fri 16/1

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

1 stop8h 40m

Ottawa

Thu 22/1

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

1 stop9h 12m

C$ 429

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Thu 8/1

1:40 p.m.-12:43 a.m.

1 stop8h 03m

Ottawa

Thu 15/1

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

1 stop9h 12m

C$ 448

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Tue 13/1

1:40 p.m.-12:43 a.m.

1 stop8h 03m

Ottawa

Tue 20/1

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

1 stop9h 12m

C$ 473

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Tue 13/1

1:00 p.m.-12:42 a.m.

2 stops32h 42m

Ottawa

Tue 20/1

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

1 stop9h 12m

C$ 490

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Wed 14/1

2:24 p.m.-5:13 p.m.

2 stops23h 49m

Ottawa

Sat 24/1

5:40 a.m.-12:38 p.m.

1 stop9h 58m

C$ 502

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Mon 26/1

1:40 p.m.-12:43 a.m.

1 stop8h 03m

Ottawa

Sat 7/2

6:45 a.m.-12:40 p.m.

1 stop8h 55m

C$ 521

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Wed 7/1

4:01 p.m.-5:25 p.m.

2 stops22h 24m

Ottawa

Wed 14/1

5:40 a.m.-12:38 p.m.

1 stop9h 58m

C$ 549

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Sun 25/1

10:15 a.m.-6:21 p.m.

3 stops29h 06m

C$ 185

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Sun 11/1

9:48 p.m.-12:42 a.m.

3 stops23h 54m

C$ 207

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/12

Showing 1-10 of 15 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 5 December 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$ 196). Flying from San Francisco to Ottawa in November is currently the most expensive (average of C$ 451). 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 12 December 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 12 December 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
397 reviews
Check prices

Boarding

8.2

Overall

8.0

Comfort

8.0

Crew

8.6

Food

7.6

Entertainment

7.0

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
8.0
Very good
397 reviews
Porter Airlines
8.0
Very good
397 reviews
Check prices

Boarding

8.2

Overall

8.0

Comfort

8.0

Crew

8.6

Food

7.6

Entertainment

7.0

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
10,514 reviews
Porter Airlines
8.0
Very good
397 reviews
Check prices

Boarding

8.2

Overall

8.0

Comfort

8.0

Crew

8.6

Food

7.6

Entertainment

7.0

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$ 196 on this airline. An additional option worth looking into is Air Canada, starting at C$ 402. 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$ 164 on Air Canada. Other airlines that offer cheap prices include United Airlines from C$ 172 and WestJet from C$ 173 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$ 196). Flying from San Francisco to Ottawa in November is currently the most expensive (average of C$ 451). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for San Francisco to Ottawa

See prices for flight routes from nearby airports that may be better suited for you.
San Francisco to Pearson Intl flights
Los Angeles to Pearson Intl flights
Los Angeles to Pierre Elliott Trudeau Intl flights
San Francisco to Pierre Elliott Trudeau Intl flights
San Diego to Pearson Intl flights
Los Angeles to Toronto Island flights
San Francisco to Toronto Island flights
Ontario to Pearson Intl flights
Las Vegas to Pearson Intl flights
Ontario to Pierre Elliott Trudeau Intl flights
San Diego to Pierre Elliott Trudeau Intl flights
Palm Springs to Pearson Intl flights
San Jose to Pearson Intl flights
Santa Ana to Pearson Intl flights
Sacramento to Pearson Intl flights
Los Angeles to Ottawa flights
Oakland to Pearson Intl flights
Burbank to Pearson Intl flights
Santa Ana to Pierre Elliott Trudeau Intl flights
Las Vegas to Pierre Elliott Trudeau Intl flights
Fresno to Pearson Intl flights
San Jose to Pierre Elliott Trudeau Intl flights
San Francisco to Hamilton flights
Los Angeles to Hamilton flights
Oakland to Pierre Elliott Trudeau Intl flights
Santa Ana to Ottawa flights
Reno to Pearson Intl flights
San Diego to Ottawa flights
Tijuana to Pearson Intl flights
Los Angeles to Region of Waterloo Intl flights
Burbank to Pierre Elliott Trudeau Intl flights
Sacramento to Pierre Elliott Trudeau Intl flights
Monterey to Pearson Intl flights
San Jose to Ottawa flights
Las Vegas to Hamilton flights
San Jose to London flights
Las Vegas to Ottawa flights
Santa Barbara to Pearson Intl flights
Burbank to Ottawa flights
Sacramento to Ottawa flights
Medford to Pearson Intl flights

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 12 December 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapestC$ 196AverageC$ 526FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air CanadaCheapestC$ 402AverageC$ 747FlexibilityNo 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.