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Cheap flights from San Francisco to Ottawa from C$ 213

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 26/9. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — YOW
29 May — 5 Jun1
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 29 April 2026.

Mon 7/96:00 a.m.
SFO
-
YOW
1 stop8h 15m
WestJet
Thu 17/912:25 p.m.
YOW
-
SFO
2 stops12h 30m
WestJet
Deal found 28/4C$ 458
Tue 12/56:00 a.m.
SFO
-
YOW
1 stop8h 15m
WestJet
Fri 29/512:25 p.m.
YOW
-
SFO
2 stops12h 30m
WestJet
Deal found 27/4C$ 470
Mon 1/66:05 p.m.
SFO
-
YOW
1 stop18h 15m
Multiple Airlines
Fri 5/67:00 a.m.
YOW
-
SFO
1 stop8h 20m
Multiple Airlines
Deal found 27/4C$ 478
Tue 12/56:00 a.m.
SFO
-
YOW
1 stop8h 15m
WestJet
Wed 27/51:20 p.m.
YOW
-
SFO
1 stop11h 35m
WestJet
Deal found 27/4C$ 511
Sat 16/56:00 a.m.
SFO
-
YOW
1 stop30h 20m
WestJet
Fri 29/512:25 p.m.
YOW
-
SFO
2 stops12h 30m
WestJet
Deal found 27/4C$ 522
Sat 26/96:00 a.m.
SFO
-
YOW
1 stop8h 15m
WestJet
Sun 4/106:15 p.m.
YOW
-
SFO
2 stops20h 45m
WestJet
Deal found 28/4C$ 533
Mon 1/66:05 p.m.
SFO
-
YOW
2 stops27h 15m
WestJet
Fri 5/66:15 p.m.
YOW
-
SFO
2 stops25h 25m
WestJet
Deal found 27/4C$ 534
Mon 10/86:05 p.m.
SFO
-
YOW
1 stop8h 30m
WestJet
Tue 11/812:25 p.m.
YOW
-
SFO
2 stops12h 30m
WestJet
Deal found 28/4C$ 540

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 29 April 2026.

Round-trip from

C$ 458

One-way from

C$ 213

Popular in

April

Cheapest in

September

Average price

C$ 986
WestJet
  • WestJet
  • 7/9-17/9
  • 3 total stops
  • 20h 45m total
  • San Francisco to Ottawa
Search Deals
WestJet
  • WestJet
  • 26/9
  • 1 total stop
  • 8h 15m total
  • San Francisco to Ottawa
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (C$ 86 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 31 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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 29 April 2026.
Use the filters below to find and compare flights from San Francisco to Ottawa that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Tue 2/6

6:00 a.m.-5:35 a.m.

1 stop20h 35m

Ottawa

Sat 6/6

12:25 p.m.-9:55 p.m.

2 stops12h 30m

C$ 576

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Wed 10/6

6:00 a.m.-5:15 p.m.

1 stop8h 15m

Ottawa

Fri 12/6

12:25 p.m.-9:55 p.m.

2 stops12h 30m

C$ 669

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Wed 13/5

5:50 a.m.-5:35 p.m.

2 stops8h 45m

Ottawa

Wed 27/5

6:55 a.m.-9:04 p.m.

2 stops17h 09m

C$ 856

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Tue 19/5

11:59 p.m.-5:35 p.m.

2 stops14h 36m

Ottawa

Wed 27/5

6:55 a.m.-9:04 p.m.

2 stops17h 09m

C$ 856

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Tue 19/5

5:55 a.m.-5:35 a.m.

2 stops20h 40m

Ottawa

Mon 25/5

6:55 a.m.-5:49 p.m.

2 stops13h 54m

C$ 859
Quickest round-trip

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Wed 10/6

6:00 a.m.-5:15 p.m.

1 stop8h 15m

Ottawa

Fri 12/6

7:00 a.m.-12:20 p.m.

1 stop8h 20m

C$ 874

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Fri 15/5

9:25 p.m.-5:35 p.m.

1 stop17h 10m

Ottawa

Sun 17/5

4:15 p.m.-4:40 p.m.

1 stop27h 25m

C$ 919

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Thu 14/5

7:15 a.m.-5:35 a.m.

2 stops19h 20m

Ottawa

Wed 27/5

1:20 p.m.-9:55 p.m.

1 stop11h 35m

C$ 925

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Tue 19/5

5:55 a.m.-5:35 a.m.

2 stops20h 40m

Ottawa

Tue 26/5

1:20 p.m.-9:55 p.m.

1 stop11h 35m

C$ 951

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Sat 16/5

6:15 a.m.-5:35 a.m.

2 stops20h 20m

Ottawa

Wed 27/5

6:55 a.m.-5:49 p.m.

2 stops13h 54m

C$ 1,000

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/4

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

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?

To ensure you get the cheapest price possible for a flight from San Francisco to Ottawa, you should look to book at least 23 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$ 537). Flying from San Francisco to Ottawa in April is currently the most expensive (average of C$ 986). 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.

How much does it cost to fly round-trip from San Francisco to Ottawa?

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 April 2026.
See what other customers who have flown with Porter Airlines 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
435 reviews
Check prices

Boarding

8.2

Entertainment

7.0

Food

7.6

Overall

8.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
Porter Airlines
8.0
Very good
435 reviews
Porter Airlines
8.0
Very good
435 reviews
Check prices

Boarding

8.2

Entertainment

7.0

Food

7.6

Overall

8.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.

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 and Delta fly from San Francisco to Ottawa in about 8h 45m. The time it takes to get you to your destination can typically vary by up to 11h 50m. The distance between San Francisco and Ottawa is about 3925 km. This flight may include one or multiple stops.

  • What is the cheapest airline to fly 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. Porter Airlines is 73% 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 Porter Airlines from C$ 204 and Air Canada from C$ 240 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$ 537). Flying from San Francisco to Ottawa in April is currently the most expensive (average of C$ 986). 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
Wakefield
Pembroke
Smiths Falls

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Alternative routes for San Francisco to Ottawa

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Top airline flying from San Francisco to Ottawa

Discover the top airline 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 April 2026.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapestC$ 194AverageC$ 694FlexibilityNo 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?

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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