SFO - YOW

C$ 268 Find Cheap Flights from San Francisco to Ottawa – Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Francisco to Ottawa departing on 10/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
C$ 475
Typical prices: C$ 610-C$ 1,214
WestJet
Fri 9/10Sun 11/10
SFO - YOW • 1 stop
Cheapest one-way flights
C$ 268
Typical prices: C$ 248-C$ 1,004
Multiple Airlines
Thu 10/9
SFO - YOW • 2 stops
Direct flights
Not available
There are currently no direct flights between San Francisco and Ottawa. You’ll need at least 1 connection.
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Top layover airports
Cheapest • Avg C$ 596 (round-trip)
Shortest trip • 7h 24m (one-way)
Insights
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When to book
in advance
Our data shows that travellers who book at least 6 weeks in advance save around 53% compared to booking last minute.
Insights
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When to travel
Cheapest • 27% price drop
Most popular
Good to know
Good to know
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from San Francisco to Ottawa (SFO-YOW)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Francisco to Ottawa that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from San Francisco to Ottawa

Fri, 9 Oct - Sun, 11 Oct
WestJet Logo
6:00 a.m. - 5:15 p.m.
SFO
-
YOW
8h 15m
1 stop
WestJet Logo
12:25 p.m. - 9:55 p.m.
YOW
-
SFO
12h 30m
2 stops
C$ 475WestJet
Fri, 25 Sep - Mon, 28 Sep
WestJet Logo
6:00 a.m. - 5:15 p.m.
SFO
-
YOW
8h 15m
1 stop
WestJet Logo
12:25 p.m. - 9:55 p.m.
YOW
-
SFO
12h 30m
2 stops
C$ 491WestJet
Thu, 10 Sep - Thu, 17 Sep
WestJet Logo
6:00 a.m. - 7:20 p.m.
SFO
-
YOW
10h 20m
1 stop
WestJet Logo
12:25 p.m. - 9:55 p.m.
YOW
-
SFO
12h 30m
2 stops
C$ 491WestJet
Sat, 26 Sep - Mon, 28 Sep
WestJet Logo
6:00 a.m. - 5:15 p.m.
SFO
-
YOW
8h 15m
1 stop
WestJet Logo
12:25 p.m. - 9:55 p.m.
YOW
-
SFO
12h 30m
2 stops
C$ 504WestJet
Thu, 1 Oct - Fri, 9 Oct
Multiple Airlines Logo
6:00 a.m. - 7:20 p.m.
SFO
-
YOW
10h 20m
1 stop
Multiple Airlines Logo
1:20 p.m. - 8:23 a.m.
YOW
-
SFO
22h 03m
2 stops
C$ 565Multiple Airlines
Thu, 1 Oct - Fri, 9 Oct
Multiple Airlines Logo
6:00 a.m. - 7:20 p.m.
SFO
-
YOW
10h 20m
1 stop
Multiple Airlines Logo
1:20 p.m. - 8:23 a.m.
YOW
-
SFO
22h 03m
2 stops
C$ 568Multiple Airlines
Sat, 24 Oct - Sat, 31 Oct
Multiple Airlines Logo
1:00 p.m. - 5:35 a.m.
SFO
-
YOW
13h 35m
1 stop
Multiple Airlines Logo
7:00 a.m. - 12:45 p.m.
YOW
-
SFO
8h 45m
1 stop
C$ 598Multiple Airlines
Wed, 9 Sep - Wed, 16 Sep
Porter Airlines Logo
1:20 p.m. - 12:25 a.m.
SFO
-
YOW
8h 05m
1 stop
Porter Airlines Logo
7:00 a.m. - 12:20 p.m.
YOW
-
SFO
8h 20m
1 stop
C$ 752Porter Airlines
Sun, 25 Oct - Fri, 30 Oct
Porter Airlines Logo
1:45 p.m. - 12:43 a.m.
SFO
-
YOW
7h 58m
1 stop
Porter Airlines Logo
7:00 a.m. - 12:45 p.m.
YOW
-
SFO
8h 45m
1 stop
C$ 755Porter Airlines
Sun, 23 Aug - Sun, 13 Sep
Porter Airlines Logo
1:20 p.m. - 12:25 a.m.
SFO
-
YOW
8h 05m
1 stop
Porter Airlines Logo
7:00 a.m. - 12:20 p.m.
YOW
-
SFO
8h 20m
1 stop
C$ 1,262Porter Airlines
Booking Insights

KAYAK's insights & trends for San Francisco to Ottawa flights

Get data-powered insights and trends into flights from San Francisco to Ottawa to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from San Francisco to Ottawa?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from San Francisco to Ottawa departing in October.

Flight prices are below average for this route right now.

Flights to Ottawa from San Francisco usually cost between C$ 753 and C$ 1,258 in October.
The lowest price found in the past 5 days was C$ 475 on WestJet (9 Oct–11 Oct).

What is the cheapest month to fly from San Francisco to Ottawa?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Francisco to Ottawa, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from San Francisco to Ottawa is February, where tickets cost C$ 594 (return) on average. On the other hand, the most expensive months are May and December, where the average cost of round-trip tickets is C$ 1,205 and C$ 1,005 respectively.

How far in advance should I book a flight from San Francisco to Ottawa?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from San Francisco to Ottawa, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from San Francisco to Ottawa, you should book around 6 weeks before departure, which saves you about 53% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Good to know

Low season

February

Cheapest flight

C$ 268
Best time to beat the crowds (27% less expensive on average)
Most popular time to fly (1% more expensive on average)
Flight from San Francisco to Ottawa

When to book flights from San Francisco to Ottawa

Are your dates flexible? Find out the best times to travel from San Francisco to Ottawa based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from San Francisco to Ottawa

  • What is the cheapest flight from San Francisco to Ottawa?

    In the last 5 days, the lowest price for a flight from San Francisco to Ottawa was C$ 268 for a one-way ticket and C$ 475 for a round-trip.

  • Which aircraft models fly most regularly from San Francisco to Ottawa?

    We unfortunately don’t have that data for this specific route.

  • Which is the best airline for flights from San Francisco to Ottawa, Porter Airlines or WestJet?

    The two airlines most popular with KAYAK users for flights from San Francisco to Ottawa are Porter Airlines and WestJet. With an average price for the route of C$ 541 and an overall rating of 8.0, Porter Airlines is the most popular choice. WestJet is also a great choice for the route, with an average price of C$ 753 and an overall rating of 7.2.

  • How does KAYAK find such low prices on flights from San Francisco to Ottawa?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Francisco to Ottawa.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Francisco to Ottawa?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ottawa from San Francisco is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Francisco to Ottawa?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ottawa with an airline and back to San Francisco with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Francisco to Ottawa?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ottawa from San Francisco up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from San Francisco to Ottawa

 
See real verified KAYAK customer reviews for airlines flying from San Francisco to Ottawa. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from San Francisco to Ottawa? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Porter AirlinesOverall score based on 449 reviews
8.6Crew
8.0Comfort
7.5Food
8.2Boarding
6.9Entertainment
Airline reviews

We were very offended Reserva check in agent in Calgary. Erroneously profiled and reprimanded for using Reserve line . Hadn't even looked at tickets. We were in fact Reserve passengers

2.0 MediocreDoug, Jun 2026
YYC - YOW
Read more Porter Airlines reviews

We were very offended Reserva check in agent in Calgary. Erroneously profiled and reprimanded for using Reserve line . Hadn't even looked at tickets. We were in fact Reserve passengers

The flight booking code given by Kayak was not the correct one used by the airline. I had to call to get the correct one. It was never sent to me. Totally unacceptable!

I like it, but the food isn't good. They need to offer more simple things. This bowls that have so many things your don't know what your are eating. The milenials like it, no the rest. And last but not least, they allowed somebody have a huge dog, vey agressive and fidgety in the flight. That's horrible. No animals should be allowed inside the airplane, what about allergies, etc

There was a 5 hour delay. Missed connection and now an almost 21 hour lay over!

Great! Personable crew. I love that they pour complimentary beer and wine.

Overall very good... staff were friendly and helpful. boarding was good for the most part, but a little hard to get our carry-on bags on there.... I think people should be directed to keep their coats and small bags with them until all the carry-ons are loaded, and then, if there is space, they can put their small bags and coats up top.. makes it much easier to put baggage up. i loved the internet feature, but the entertainment was not there unless you have your own Netflix or similar platform. My chair did not recline, which was very annoying, and the arms won't go up near the isle, which makes it tough to get in and out of the seat.

Flight was smooth and comfortable. The crew were exceptional. Amanda, Nichole and Hershel were attentive to our every need. So friendly. My daughter and I were surprised at quality of service. Loved the double row seating. Snacks were delicious. We would definitely fly with Porter again. Flight PD 670 SFO to YYZ Thank you so much for the best flight experience we have had

The E195-E2 is a great aircraft! Leather seats, lots of legroom and SO quiet! The flight crew is terrific!

Flight Ottawa to Toronto canceled and no crew was available to direct me on what to do. I opened a file and I wait to be compensated.

travelling in 14th of April and now we are in 17th , I have not received my lost/delayed bag... this is very bad and the worst part is their call center is not able to see where is it!!!!

Due to delays at SFO, my WestJet light missed its connecting WestJet flight. If they had held the plane in Calgary for 15 minutes, 2 families with children would not have been stranded in Calgary for more than 24 hours. I understand the need to be on-time, but when it is the same company, you would think they could make a phone call. Or maybe they could go to a higher altitude to make up for lost time? Instead of attempting to put us on another flight, they rescheduled us for the same connecting flight 24 hours later. We then had to scramble to find a hotel, which they state that they were not responsible for since the delay was not their fault and therefore became an additional out of pocket expense for us. The customer service is severely lacking here at this company. They also mentioned that if we purchased our tickets through a 3rd party site (Kayak) versus WestJet directly, that they couldn't help us. Seriously?? Additionally, we lost 2 days of travel and missed out on tours and taxis that were pre-booked. I will not be using WestJet again,

I didn’t have any food but my Prosecco hit the spot. We left on time and the crew was friendly.

Kayak was the problem! The tickets we bought did not allow for carry on or checked luggage and we ended up paying more for those services than the tickets! The paperwork Kayak provided for the receipt left the luggage policy for Westair intentionally blank. This was intentionally decietful on Kayak's part. Our additional cost was over $400.00! I will be calling customer service today asking for refunds and I will keep you informed on any review sites as I can. Keith

It was good, flight was on time, boarding was smooth and done in zones, food was good too but there was no form of entertainment. Luggage’s were intact. So an overall good flight

The flight was on time - which is good. But pretty much every other aspect of the experience was bad. They charged 55$ for a carry on bag!

Flight was old and the seats were not comfortable at all. They made me pay 55$ to take my carry-on bag onboard.

It was okay overall, but it was a 4 hours flight and the only thing we got was snacks, I really expected breakfast.

My wife and I both use canes. Although I had checked in 24 hours before the flight and noted we would be checking two roll-on bags, the machines at the check in area did not produce luggage tags, and staff were unwilling to help unless we joined the long queue, a very difficult challenge. We opted to take the bags on board and, of course, were relieved of the jells and scissors in the bags at security. On board crew were then unhelpful in hoisting the bags into the overhead bins.

The seats were very comfortable. However the meal on the transatlantic portion of the trip was not very good, even by airline food standards.

They made my minor daughter leave the area and go back though security during a flight connection with her checked luggage

Everything you need to know for your flight from San Francisco to Ottawa

Information on your arrival and departure airports