YOW - SFO

$166 Find Cheap Flights from Ottawa to San Francisco

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ottawa to San Francisco departing on 9/2. 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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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ottawa to San Francisco, 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 Ottawa to San Francisco, as well as popular online travel agencies
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Cheap Flights from Ottawa to San Francisco

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ottawa to San Francisco 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 Ottawa to San Francisco

KAYAK's recommended round-trip deals from the most popular airlines that fly from Ottawa to San Francisco.
Discover the best prices for you by selecting your travel dates on KAYAK.
WestJet Logo
5:45 am - 1:59 pmYOW-SFO
11h 14m1 stop
WestJet Logo
12:50 pm - 5:25 amSFO-YOW
13h 35m2 stops
$292WestJet
Find Deal
Thu, Jul 10 - Tue, Jul 15
WestJet Logo
3:35 pm - 9:25 pmYOW-SFO
8h 50m1 stop
WestJet Logo
12:50 pm - 5:25 amSFO-YOW
13h 35m2 stops
$307WestJet
Find Deal
Tue, May 27 - Tue, Jun 3
 Logo
3:45 pm - 9:25 pmYOW-SFO
8h 40m1 stop
 Logo
7:00 am - 10:21 amSFO-YOW
24h 21m2 stops
Wed, Jun 4 - Wed, Jun 18
 Logo
6:00 am - 12:05 pmYOW-SFO
9h 05m1 stop
 Logo
10:15 am - 2:44 pmSFO-YOW
25h 29m1 stop
Fri, Jun 13 - Fri, Jun 20
United Airlines Logo
10:37 am - 9:46 pmYOW-SFO
14h 09m2 stops
United Airlines Logo
4:10 pm - 10:07 amSFO-YOW
14h 57m2 stops
$554United Airlines
Find Deal
Sat, Aug 30 - Wed, Dec 10
United Airlines Logo
6:33 am - 5:46 pmYOW-SFO
14h 13m2 stops
United Airlines Logo
4:10 pm - 10:07 amSFO-YOW
14h 57m2 stops
$570United Airlines
Find Deal
Wed, Aug 27 - Mon, Dec 15
Porter Airlines Logo
7:00 am - 12:23 pmYOW-SFO
8h 23m1 stop
Porter Airlines Logo
1:30 pm - 12:42 amSFO-YOW
8h 12m1 stop
$666Porter Airlines
Find Deal
Thu, Aug 28 - Sat, Dec 13
Porter Airlines Logo
6:35 pm - 12:23 pmYOW-SFO
20h 48m2 stops
Porter Airlines Logo
1:30 pm - 12:42 amSFO-YOW
8h 12m1 stop
$671Porter Airlines
Find Deal
Thu, Aug 28 - Sat, Dec 13
Air Canada Logo
9:25 am - 3:33 pmYOW-SFO
9h 08m1 stop
Air Canada Logo
11:59 pm - 10:07 amSFO-YOW
7h 08m1 stop
$691Air Canada
Find Deal
Wed, Aug 27 - Sat, Dec 13
Air Canada Logo
9:55 pm - 9:26 amYOW-SFO
14h 31m1 stop
Air Canada Logo
8:40 am - 7:03 pmSFO-YOW
7h 23m1 stop
$702Air Canada
Find Deal
Tue, Sep 2 - Wed, Dec 10
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KAYAK's insights & trends for Ottawa to San Francisco flights

Get data-powered insights and trends into flights from Ottawa to San Francisco 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 Ottawa to San Francisco?

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

When flying from Ottawa to San Francisco, you should consider leaving on a Thursday and avoid Sundays if you are looking for the best rates. For your return to Ottawa, you’ll find the best rates on Wednesdays and the most expensive ones on Sundays.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ottawa to San Francisco, 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 Ottawa to San Francisco is January, where tickets cost $303 (return) on average. On the other hand, the most expensive months are July and December, where the average cost of round-trip tickets is $494 and $481 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Ottawa to San Francisco, 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 Ottawa to San Francisco, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 18 weeks before departure.

Good to know

Low seasonNovember
High seasonJuly
Cheapest flight$166
Best time to beat the crowds but there is an average 8% increase in price.
Most popular time to fly with an average 21% increase in price.
Flight from Ottawa to San Francisco

When to book flights from Ottawa to San Francisco

Are your dates flexible? Find out the best times to travel from Ottawa to San Francisco 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 Ottawa to San Francisco

  • Are there accessibility services at San Francisco International Airport?

    Yes. SFO offers passengers with limited mobility access with ramps and elevators throughout its premises. Furthermore, at SFO travelers with limited mobility have access to accessible designated parking garages, washrooms, and wheelchair assistance. Passengers with hearing impairment travellng through SFO have visual paging and TTY telephones while passengers with visual impairments in SFO have Braille signage throughout the Airport and free Aira service.

  • What are the most popular layover cities for flights from Ottawa to San Francisco?

    The flight from Ottawa to San Francisco is of considerable length. Thus the route will include at least one layover stop. On the route, you’ll find single and double layover flight choices. Toronto, Las Vegas, Fort Lauderdale, Montreal, Chicago, Newark, Vancouver, Denver, Minneapolis, Detroit, Atlanta, Houston, Calgary, Atlanta, Los Angeles, Seattle and New York are the route’s most popular layover cities.

  • What are the visa and passport specifications to fly from Ottawa to San Francisco?

    When traveling to San Francisco from Ottawa, Canadian citizens must have an official passport. Also, Canadian citizens can make the trip to San Francisco with their Nexus Card. Their passport must also be valid during their stay in San Francisco. Additionally, Canadian citizens traveling to San Francisco for less than 90 days, won’t need to have a visa. Alternatively, they may need a relevant visa for a stay of more than 90 days.

  • Are there animal relief areas at Ottawa/Macdonald-Cartier International Airport?

    Yes. YOW offers service animals and pets designated relief areas throughout its faculties to take care of the fuzzy four-legged travelers’ potty needs. On that account, Ottawa Airport has a variety of service animal/pet relief areas past the security open throughout the day. At YOW, past security on the Canada/International Departure level next to Gate 18 and the United States Departure level is the service animal/pet relief areas. Additionally, YOW has an outdoor animal relief area located across from the terminal building along the Parkade (P1), supplied with waste disposal bags and receptacles.

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

    In the last 3 days, the lowest price for a flight from Ottawa to San Francisco was $166 for a one-way ticket and $292 for a round-trip.

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

    A passport is required to fly from Ottawa to San Francisco.

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

    Ottawa and San Francisco are both served by 1 main airport. You will leave Ottawa from Ottawa and will be arriving at San Francisco.

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Ottawa to San Francisco are Porter Airlines and United Airlines. With an average price for the route of $392 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 $555 and an overall rating of 7.4.

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

    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 Ottawa to San Francisco.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Francisco from Ottawa 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 Ottawa to San Francisco?

    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 San Francisco with an airline and back to Ottawa with another airline. Booking your flights between Ottawa and SFO 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 Ottawa to San Francisco?

    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 San Francisco from Ottawa up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Ottawa to San Francisco

  • San Francisco International Airport (SFO) is one of the main airports serving the San Francisco area. The Airport serves as a hub for Alaska Airlines and United Airlines, which offer flights from Ottawa to San Francisco.
  • Do you want to lease a vehicle when you land in San Francisco? SFO has a rental car center. To access the rental car center take the AirTrain from SFO’s Terminals. Budget, Alamo, Avis, Thrifty, National, Dollar, Enterprise, SIXT, and Hertz, are the onsite rental agencies at SFO.
  • For business people traveling through SFO, who have important business to take care of while at the Airport, SFO has a business center. SFO’s business center is located in the International Terminal's main hall.
  • The flight from San Francisco to Ottawa is quite lengthy. Passengers flying with Delta Air Lines and Air Canada can sidetrack themselves en route with a variety of entertainment offered via the airline's entertainment device.
  • Ottawa/Macdonald-Cartier International Airport (YOW) is one of the primary airports serving the metropolis of Ottawa. The Airport serves as a base for Flair Airlines, Air Canada, and Porter Airlines, which offer flights to San Francisco from Ottawa.

Top 3 airlines serving from Ottawa to San Francisco

 
See real verified KAYAK customer reviews for airlines flying from Ottawa to San Francisco. 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 Ottawa to San Francisco? 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
7.6Food
7.0Entertainment
8.8Crew
8.1Comfort
8.2Boarding
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.

A bit rush for transit. Food and entertainment are not available

The gate was too far away for the connecting flight

Generally good. The aisles have gotten narrower which can slow down boarding. Flight crew was great! Healthier complimentary snacks would be appreciated. Due to earthquake in San Francisco we had to circle in air space for a bit but then had a smooth landing. I laud the flight crew for their patience ;)

headphone jack didnt work for the first flight and not much variety

The agents was very rude and they charged me $50 for a carry-on bag saying that it was too big and then I saw someone going on a plane with the same size bag as me

For the most part united was a good experience, how ever when they came by with the snacks and water, they completely passed by my wife and I. As we were in separate rows. On a 5 hr flight we were not offered water

Fantastic crew. Flight was delayed at last minute but we were given updates every 20 minutes and the crew was so friendly and considerate. I miss the touch screens on the back of the seats, wish they would bring that back though.

Beijing PEK to SFO. I had an economy seat on this flight. The seat comfort was acceptable. My main complaint is with the FA’s lack of personality and absence from servicing the plane, specifically restroom care (I wish I could share a pic of the restroom that I captured) and care of travelers—drink cart/availability of drinks. I'm amazed at the level of service on other International travel where a passenger is most often appreciated.

Awful. Worst airline I have ever been on. Crew were among the rudest people I have ever dealt with. United staff members were rude and disrespectful. My flight was delayed, causing me to miss a connecting flight. I understand things happen, but when staff start lying about what actually happened, that is when I have an issue. Just be honest, really it isn’t that hard. I’m being very honest with this review and I don’t find this difficult what so ever. In fact, because of United Airlines, my Christmas holiday was off to a really rocky start. As someone who has traveled across the world, it has only been United that I have had a truly awful experience.

Good flight. On time. Boarding and seating was easy. Crew were really friendly, yet professional. Bathroom (by cockpit) was small but serviceable. Some the seats were showing some notable wear & tear, but were comfy. Very happy UA customer. TY! 🤛🏽💗

They lost my checked in luggage, why do I pay for my cargo not arriving at the same destination as me?

Short flight so no food or entertainment. Good landing at SFO and on time. We were told no carryon luggage yet lots of people were puting bags in overhead compartments. The rules need to be made more clear. I was on the first leg of an international flight and this is the first time I could not have carryon luggage.

Poor planning meant the plane was delayed an hour, then a thunder storm started and the ground staff couldn't work. Eventual arrival in Santiago was 3 hours late resulting in missed connections and the need to buy new tickets.

The take off was delayed as we were told that the baggages had to be rearranged to balance the weight. I only took a carry-on and a personal item, but the overhead bin was extremely small, even a normal size carryon can’t fit it, so they had to check it in for free. The seat was really tight and no entertainment at all.

The pork noodles were disgusting. The tuna sandwich had hardly any tuna and the bread was stale. A salad would have been better. An apple or a muffin.

Your crew was so so so wonderful Only thing sound be great if you kept some phone chargers and converters rest 👌👌👌👌

The speakers were way too loud. Music was played during boarding too. This noise could've been avoided.

The TSA people or whatever you call them were a bit rude- I asked why I had to take my shoes off bc I'm 75 and in the USA, I don't have to. The man didn't need to snap at me. It wasn't even busy! The plane was ok, a bit small for such a long flight, but I'm very familiar with the 737 used ( I fly it often between SFO and SAN) service was ok-nothing special. If I drank alcohol I guess I would be happy with free choices. the plane was HOT and even the FA commented on it. They tried to get it cooler, but it never happened.

Multiple change of the gates at Pearson, delayed flight was extremely uncomfortable.

Easy boarding, punctuality, decent service. I can only complain about the measly snack.

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

Information on your arrival and departure airports

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