SFO - YOW

$168 Find Cheap Flights from San Francisco to Ottawa

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 5/17. 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.
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KAYAK searches hundreds of travel sites at once for deals on flights to Ottawa

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to Ottawa, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to Ottawa, as well as popular online travel agencies
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Flights Deals

Cheap Flights from San Francisco to Ottawa

 
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.

Recent round-trip flight deals from San Francisco to Ottawa

KAYAK's recommended round-trip deals from the most popular airlines that fly from San Francisco to Ottawa.
Discover the best prices for you by selecting your travel dates on KAYAK.
 Logo
6:00 am - 7:55 pmSFO-YOW
10h 55m1 stop
 Logo
6:00 am - 12:05 pmYOW-SFO
9h 05m1 stop
Wed, Jun 11 - Mon, Jun 16
WestJet Logo
6:05 pm - 6:45 amSFO-YOW
9h 40m1 stop
WestJet Logo
6:10 am - 5:15 pmYOW-SFO
14h 05m2 stops
$356WestJet
Find Deal
Wed, Jun 11 - Mon, Jun 16
WestJet Logo
12:50 pm - 5:25 amSFO-YOW
13h 35m2 stops
WestJet Logo
6:00 am - 12:05 pmYOW-SFO
9h 05m1 stop
$358WestJet
Find Deal
Tue, Jul 22 - Mon, Jul 28
Delta Logo
12:50 pm - 12:40 amSFO-YOW
8h 50m1 stop
Delta Logo
6:00 am - 11:54 amYOW-SFO
8h 54m1 stop
$524Delta
Find Deal
Wed, Sep 24 - Sat, Sep 27
United Airlines Logo
12:20 am - 2:13 pmSFO-YOW
10h 53m1 stop
United Airlines Logo
5:15 am - 7:24 pmYOW-SFO
17h 09m2 stops
$730United Airlines
Find Deal
Mon, Jul 21 - Mon, Jul 28
United Airlines Logo
12:30 am - 2:27 pmSFO-YOW
10h 57m2 stops
United Airlines Logo
5:15 am - 7:24 pmYOW-SFO
17h 09m2 stops
$735United Airlines
Find Deal
Mon, Jul 21 - Mon, Jul 28
Air Canada Logo
7:40 pm - 8:49 pmSFO-YOW
22h 09m1 stop
Air Canada Logo
9:55 pm - 10:33 amYOW-SFO
15h 38m1 stop
$769Air Canada
Find Deal
Fri, Jul 4 - Mon, Jul 7
Porter Airlines Logo
1:30 pm - 12:21 amSFO-YOW
7h 51m1 stop
Porter Airlines Logo
7:00 am - 12:30 pmYOW-SFO
8h 30m1 stop
$956Porter Airlines
Find Deal
Mon, May 19 - Thu, May 29
Delta Logo
12:50 pm - 12:41 amSFO-YOW
8h 51m1 stop
Delta Logo
3:45 pm - 9:25 pmYOW-SFO
8h 40m1 stop
$1,383Delta
Find Deal
Thu, Jun 12 - Sun, Aug 31
Air Canada Logo
4:35 pm - 8:33 amSFO-YOW
12h 58m1 stop
Air Canada Logo
9:25 am - 7:38 pmYOW-SFO
13h 13m1 stop
$1,579Air Canada
Find Deal
Thu, Jun 12 - Sun, Aug 31
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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.

What’s the cheapest day of the week to fly from San Francisco to Ottawa?

The average price of all round-trip flights from San Francisco to Ottawa clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from San Francisco to Ottawa, look for departures on Wednesdays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from Ottawa, Thursday is the cheapest day to fly and Sunday is the most expensive.

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 $337 (return) on average. On the other hand, the most expensive months are June and December, where the average cost of round-trip tickets is $574 and $570 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 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Good to know

Low seasonMarch
High seasonJune
Cheapest flight$168
Best time to beat the crowds with an average 23% drop in price.
Most popular time to fly with an average 15% increase in price.
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 3 days, the lowest price for a flight from San Francisco to Ottawa was $168 for a one-way ticket and $349 for a round-trip.

  • Do I need a passport to fly between San Francisco and Ottawa?

    Yes, you'll most likely have to show a valid passport before boarding the plane in San Francisco and on arrival in Ottawa.

  • Which airports will I be using when flying from San Francisco to Ottawa?

    On your way to Ottawa, you’ll fly out from San Francisco. You’ll be landing at Ottawa.

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

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

  • Which airline alliances offer flights from San Francisco to Ottawa?

    Star Alliance, and SkyTeam are the airline alliances operating flights between San Francisco and Ottawa, with Star Alliance being the most commonly used for this route.

  • What is the most popular layover when flying to Ottawa from San Francisco?

    Toronto is the most popular layover city among KAYAK users traveling from San Francisco to Ottawa.

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

    The two airlines most popular with KAYAK users for flights from San Francisco to Ottawa are Porter Airlines and United Airlines. With an average price for the route of $485 and an overall rating of 8.0, Porter Airlines is the most popular choice. United Airlines is also a great choice for the route, with an average price of $598 and an overall rating of 7.4.

  • 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. Booking your flights between San Francisco and YOW can sometimes prove cheaper using this method.

  • 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.

Top 4 airlines serving 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 285 reviews
8.1Comfort
8.8Crew
8.2Boarding
7.0Entertainment
7.6Food
Airline reviews

I love the 2 seats per row. More room. The crew were excellent.

10.0 ExcellentAnonymous, Apr 2025YHZ - YOW
Read more Porter Airlines reviews

I love the 2 seats per row. More room. The crew were excellent.

It was amazing although they did bump us up to the front which gave us more leg room and a meal. The service was great! The staff were friendly. :)

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.

Staff were excellant. Only snacks served. Some turbulence so we were offered Free beer or wine.

The staff is always great. Just the fact that our flight was the only one delayed from Halifax when all other carries were still flying. It happen a year ago out of Toronto as well. All others were flying but our flight got cancelled 1 hr before the time of departure.

The only issue had when i mentioned about comfort was the man beside me was on the larger side and took about 1/3 of my seat where i was pressed against the wall/window of the plane for the trip.

The check-in staff, boarding staff, and flight crew were all very friendly. Really miss the Porter lounge in Ottawa.

Thanks for giving a beer to everyone in the seat infront of me and then telling me that I can’t have one because they are going to land. I guess I need to pay for a seat and then pick one in the very front of the plane

The flight was delayed by more than one hour. The terminal was consequently overcrowded and hot. We lost our car reservation and hit rush hour traffic in Boston, which added two hours stuck in traffic to our trip.

Awesome, the whole way through. Thank you, this is the new Canadian Airline benchmark.

Liked fold flat bed. Didn’t like having no window. Didn’t like poor choice of food and being served dinner very late, hours after take off of a 7:40pm flight. Servers not friendly. Food horrible in business class.

Everything is good except the dinner and breakfast. The sandwich is very delicious. Toilet is clean, I only use one of them. Flight attendants are very nice. 👍👍

I do prefer to fly United and have always had excellent service, except for bad weather. Flights are on time and staff is alway curtious and helpful

Compared with other carriers business class for an overnight was not worth the extra expense.

Easy to board. Flight was super crowded though so I didn't sleep well on that cross country red-eye flight. The aisles seem ot have gotten narrower and the seat smaller whn luggage and people are getting bigger so it would be AWESOME to have more space and breathing room in general ;)

Pilot Erika DeLong made us feel safe and at ease in a frankly scary time to be flying. Her warm smile and greeting and excellent command of the aircraft in foggy bumpy weather helped us all to calm our nerves and get us home safely.

AWFUL. I have had the experience of traveling with many airlines across the world, and hands down United Airlines is the worst. Not one flight was on time, and I don’t think I met one crew member or staff member who wasn’t rude.

For an 8.5 hour flight the service on board lacked a bit. Service start was slow, the food was worse than usual and they skipped the snack they were supposed to deliver before landing.

Wish movie and music choices changed more often. Mostly same from a month or two ago when I last flew.

It was good. Just that the seats could not be reclined. The people behind were not ready to let the chairs be reclined

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

Plane changed to one with no entertainment system or ability to serve hot meals

Flight was delayed 3 times. Then cancelled due to pilot being timed out. They refused hotel vouchers. Gate attendants were very rude and could not help you at all.

No access to any entertainment No food other than a cookie or pretzels even tho flight was over the supper hour Seats very close together and very little leg room Staff was very good

Horrible. I checked out myself that it seems that I can have a free carry-on. But they ask me to pay $75 when we are nearly boarding. It was tricky during check out that make you mistake that you can have a carry-on beside your personal item. Also they ask $75 in the airport instead of $35 during checkout. So the whole process is designed to make you this mistake

Plane should have entertainment, instead of people paying to use wifi

The cancelation of my flight from Toronto to Edmonton without any solution given to me for my next flight. Very poor connection from Toronto to Edmonton

Too squished in seats. I'm 110 lbs and 5'6....can't imagine being any bigger and flying

Flight was delayed. Arrived in Vancouver at 3 am. Not a great experience.

Original flight canceled and communicated poorly. A series of gate changes , delays and plane changes followed. Even after the entire flight boarded there was another plane changes followed. Food vouchers provided to my travel companion but not to me despite being on the same reservation. No in flight entertainment. The entire experience was terrible although the flight crew were great.

This flight didn't happen for me because of overbooking.

Poor air traffic controller staffing led to a 50%reduction on flights so we got to wait 4 hrs for our flight! Very disorganized at the gate Poor communication with customers

Everything was simple and easy. The lady at the gate was super friendly, I wish I had her name to share. She's a little older, dark-haired. You can tell she likes her job and would be a great influence on any young people training with her.

During the pre-departure safety briefing, the flight attendants rushed through the mandatory safety announcements in both official languages, making it difficult for passengers to clearly understand the instructions. Given the importance of these messages for passenger safety, this lack of clarity was concerning. Perhaps use a recoded message to alleviate this concern. Additionally, the flight attendants appeared to lack the professional attentiveness typically expected during a flight. Rather than focusing on timely and courteous service, they seemed more engaged in personal conversations than in addressing the needs of passengers. I hope this feedback is taken constructively and helps in maintaining the high standards of professionalism and care that travelers expect from a national carrier: AC.

Service is pretty good. Sandwiches have to be purchased but I’ve bought my own food. Seat was comfortable and various movies to chose from.

They are a great airline, and i enjoying flying with them. However my experience with booking through Kayak was a horrible experience. With all the restrictions and glitches of website. My entire bookings by kayak was wrong. And there was no possible way of fixing anything with them, because they hand over responsibility to the airline after purchase is made. Will not be booking through Kayak again and will inform my family and friends not to as well.

Excellent crew, great food despite catering issues. We need more people like this.

One leg of the flight arrived late which necessitated a rebooking on the next leg. Although there were no major weather events in play, best choice offered was a 7 hour wait in the Vancouver airport for a 4 hour totally packed red eye flight to Ottawa. No opportunities to return earlier via other major hubs like Toronto or Montreal. Felt very much like national routes were no longer well supported. Adding insult to injury, entertainment system for my seat was out of order. Thought I might use wi-fi, but discovered it would cost $10 per hour! Paid a lot for the flight as it was over the holiday period. Probably won't be doing that again.

1. The PA system was painfully loud. 2. Overhead bin #33 was missing—I find this troubling.

The fact that we have to check in our carryons when we met the requirements and there was plenty of spaces near we sat was ridiculous

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

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