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Cheap flights from San Francisco to Ottawa from C$ 129

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 29/4. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — YOW
20 Apr — 27 Apr1
1 adult

Cheapflights Tip: The best prices from San Francisco to Ottawa are usually found in February or January, booked 88 days in advance, depart on a Friday or Monday 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 15 April 2025.

Round-trip from

C$ 373

One-way from

C$ 129

Popular in

June

Cheapest in

February

Average price

C$ 622
Air Canada
  • Air Canada
  • 1/6-7/6
  • 2 total stops
  • 18h 15m total
  • San Francisco to Ottawa
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29/4
  • 29/4
  • 1 total stop
  • 24h 00m total
  • San Francisco to Ottawa
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (C$ 138 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 18 potential savings vs. average RT price).
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Average for round-trip flights in April 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 15 April 2025.

Sun 1/66:05 p.m.SFO - YOW
1 stop9h 40mMultiple Airlines
Sat 7/66:00 a.m.YOW - SFO
1 stop8h 35mMultiple Airlines
Deal found 15/4C$ 373
Wed 14/51:30 p.m.SFO - YOW
1 stop7h 51mPorter Airlines
Sun 18/57:00 a.m.YOW - SFO
1 stop8h 30mPorter Airlines
Deal found 15/4C$ 377
Tue 10/66:05 p.m.SFO - YOW
1 stop9h 40mWestJet
Sun 15/66:00 a.m.YOW - SFO
1 stop9h 05mWestJet
Deal found 15/4C$ 381
Wed 2/711:50 a.m.SFO - YOW
1 stop7h 15mAir Canada
Thu 17/79:25 a.m.YOW - SFO
1 stop9h 08mAir Canada
Deal found 15/4C$ 451
Wed 24/912:50 p.m.SFO - YOW
1 stop8h 50mDelta
Sat 27/96:00 a.m.YOW - SFO
1 stop8h 54mDelta
Deal found 15/4C$ 606
Wed 7/512:10 a.m.SFO - YOW
1 stop14h 23mUnited Airlines
Sun 11/57:29 p.m.YOW - SFO
2 stops15h 00mUnited Airlines
Deal found 14/4C$ 1,035

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 15 April 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 1/6

6:05 p.m.-6:45 a.m.

1 stop9h 40m

Ottawa

Sat 7/6

6:00 a.m.-11:35 a.m.

1 stop8h 35m

C$ 373

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Wed 14/5

1:30 p.m.-12:21 a.m.

1 stop7h 51m

Ottawa

Sun 18/5

7:00 a.m.-12:30 p.m.

1 stop8h 30m

C$ 377

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Tue 10/6

6:05 p.m.-6:45 a.m.

1 stop9h 40m

Ottawa

Sun 15/6

6:00 a.m.-12:05 p.m.

1 stop9h 05m

C$ 381

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Wed 2/7

11:50 a.m.-10:05 p.m.

1 stop7h 15m

Ottawa

Thu 17/7

9:25 a.m.-3:33 p.m.

1 stop9h 08m

C$ 451

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Wed 24/9

12:50 p.m.-12:40 a.m.

1 stop8h 50m

Ottawa

Sat 27/9

6:00 a.m.-11:54 a.m.

1 stop8h 54m

C$ 606

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Fri 25/7

12:20 a.m.-2:27 p.m.

1 stop11h 07m

Ottawa

Wed 6/8

5:15 a.m.-7:24 p.m.

2 stops17h 09m

C$ 957

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Tue 29/4

1:45 p.m.-4:45 p.m.

1 stop24h 00m

C$ 129

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Thu 26/6

2:45 p.m.-6:45 a.m.

2 stops13h 00m

C$ 172

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Fri 30/5

1:30 p.m.-12:21 a.m.

1 stop7h 51m

C$ 179

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Fri 2/5

7:40 p.m.-8:33 a.m.

1 stop9h 53m

C$ 193

Flights are sorted by cheapest round-trip flights first.

Deals found on 14/4

Showing 1-10 of 12 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 11 April 2025.

To ensure you get the cheapest price possible for a flight from San Francisco to Ottawa, you should look to book at least 88 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, October is the cheapest month in which you can book a flight from San Francisco to Ottawa (average of C$ 224). Flying from San Francisco to Ottawa in December is currently the most expensive (average of C$ 326). 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 15 April 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 18% on your trip compared to booking a flight in the evening.

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 50.0 - 93.0 mm per month. June is typically the wettest month, when rainfall can reach 93.0 mm. February is typically the driest time to visit Ottawa when rainfall is around 50.0 mm.

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 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -10.0 C).

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 15 April 2025.
Porter Airlines
8.0
Very good
281 reviews
Check prices

Overall

8.0

Comfort

8.0

Entertainment

7.0

Crew

8.7

Boarding

8.2

Food

7.6

Reviews

1 / 17
10.0
Excellent

Anonymous,Dec 2024

YYZ - LAS

Everything about the rescheduled (cost me $180) flight great. ***Being denied boarding because I was few minutes under 1.5 hours was not. Stuck at the Kiosk for about 15 minutes before it directed me to the Porter counter was strange. Do not know why checking in online at home was not successful? I think something was up...what can you do?
Porter Airlines
8.0
Very good
281 reviews
Porter Airlines
8.0
Very good
281 reviews
Check prices

Overall

8.0

Comfort

8.0

Entertainment

7.0

Crew

8.7

Boarding

8.2

Food

7.6

Reviews

1 / 17
10.0
Excellent

Anonymous,Dec 2024

YYZ - LAS

Everything about the rescheduled (cost me $180) flight great. ***Being denied boarding because I was few minutes under 1.5 hours was not. Stuck at the Kiosk for about 15 minutes before it directed me to the Porter counter was strange. Do not know why checking in online at home was not successful? I think something was up...what can you do?
Delta
8.0
Very good
7,917 reviews
Porter Airlines
8.0
Very good
281 reviews
Check prices

Overall

8.0

Comfort

8.0

Entertainment

7.0

Crew

8.7

Boarding

8.2

Food

7.6

Reviews

1 / 17
10.0
Excellent

Anonymous,Dec 2024

YYZ - LAS

Everything about the rescheduled (cost me $180) flight great. ***Being denied boarding because I was few minutes under 1.5 hours was not. Stuck at the Kiosk for about 15 minutes before it directed me to the Porter counter was strange. Do not know why checking in online at home was not successful? I think something was up...what can you do?
United Airlines
7.4
Good
8,658 reviews
Porter Airlines
8.0
Very good
281 reviews
Check prices

Overall

8.0

Comfort

8.0

Entertainment

7.0

Crew

8.7

Boarding

8.2

Food

7.6

Reviews

1 / 17
10.0
Excellent

Anonymous,Dec 2024

YYZ - LAS

Everything about the rescheduled (cost me $180) flight great. ***Being denied boarding because I was few minutes under 1.5 hours was not. Stuck at the Kiosk for about 15 minutes before it directed me to the Porter counter was strange. Do not know why checking in online at home was not successful? I think something was up...what can you do?
WestJet
7.2
Good
2,805 reviews
Porter Airlines
8.0
Very good
281 reviews
Check prices

Overall

8.0

Comfort

8.0

Entertainment

7.0

Crew

8.7

Boarding

8.2

Food

7.6

Reviews

1 / 17
10.0
Excellent

Anonymous,Dec 2024

YYZ - LAS

Everything about the rescheduled (cost me $180) flight great. ***Being denied boarding because I was few minutes under 1.5 hours was not. Stuck at the Kiosk for about 15 minutes before it directed me to the Porter counter was strange. Do not know why checking in online at home was not successful? I think something was up...what can you do?
Air Canada
7.0
Good
9,127 reviews
Porter Airlines
8.0
Very good
281 reviews
Check prices

Overall

8.0

Comfort

8.0

Entertainment

7.0

Crew

8.7

Boarding

8.2

Food

7.6

Reviews

1 / 17
10.0
Excellent

Anonymous,Dec 2024

YYZ - LAS

Everything about the rescheduled (cost me $180) flight great. ***Being denied boarding because I was few minutes under 1.5 hours was not. Stuck at the Kiosk for about 15 minutes before it directed me to the Porter counter was strange. Do not know why checking in online at home was not successful? I think something was up...what can you do?

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$ 377 on this airline. Additional options worth looking into are WestJet and Air Canada, starting at C$ 381 and C$ 451 round-trip. Porter Airlines is 44% 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$ 172 on WestJet. Other airlines that offer cheap prices include Porter Airlines from C$ 179 and Air Canada from C$ 193 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, October is the cheapest month in which you can book a flight from San Francisco to Ottawa (average of C$ 224). Flying from San Francisco to Ottawa in December is currently the most expensive (average of C$ 326). 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 San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Gatineau
Perth
Smiths Falls
Prescott
Brockville
Wakefield
Lanark

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Alternative routes for San Francisco to Ottawa

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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 15 April 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 324AverageC$ 748FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Porter AirlinesCheapestC$ 410AverageC$ 693FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights

Fly with Cheapflights

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

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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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