SFO - YOW

$159 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 3/23. 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

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
Travelers love KAYAK
41.299.237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$331
Typical prices: $319-$629
WestJet
Tue 5/12Mon 5/18
SFO - YOW • 2 stops
Cheapest one-way
$159
Typical prices: $125-$346
Multiple Airlines
Mon 3/23
SFO - YOW • 3 stops
Top airlines
WestJet
Cheapest • from $331 (round-trip)
Porter Airlines
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
3 weeks
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 49% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
February
Cheapest • 29% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Ottawa!
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

Tue, May 12 - Mon, May 18
WestJet Logo
7:30 am - 12:20 am
SFO
-
YOW
13h 50m
2 stops
WestJet Logo
6:15 am - 5:14 pm
YOW
-
SFO
13h 59m
2 stops
$331WestJet
Tue, May 12 - Wed, May 20
WestJet Logo
7:30 am - 12:20 am
SFO
-
YOW
13h 50m
2 stops
WestJet Logo
6:15 am - 5:14 pm
YOW
-
SFO
13h 59m
2 stops
$335WestJet
Fri, May 8 - Sun, May 10
WestJet Logo
12:50 pm - 12:40 am
SFO
-
YOW
8h 50m
1 stop
WestJet Logo
3:45 pm - 9:24 pm
YOW
-
SFO
8h 39m
1 stop
$350WestJet
Fri, May 8 - Sun, May 10
WestJet Logo
12:50 pm - 5:28 am
SFO
-
YOW
13h 38m
2 stops
WestJet Logo
3:45 pm - 9:24 pm
YOW
-
SFO
8h 39m
1 stop
$352WestJet
Tue, May 12 - Wed, May 20
WestJet Logo
12:50 pm - 12:40 am
SFO
-
YOW
8h 50m
1 stop
WestJet Logo
6:15 am - 5:14 pm
YOW
-
SFO
13h 59m
2 stops
$356WestJet
Fri, May 8 - Sun, May 10
WestJet Logo
12:50 pm - 5:28 am
SFO
-
YOW
13h 38m
2 stops
WestJet Logo
6:15 am - 9:24 pm
YOW
-
SFO
18h 09m
2 stops
$362WestJet
Sat, May 23 - Tue, Jun 2
Multiple Airlines Logo
7:30 am - 6:25 pm
SFO
-
YOW
7h 55m
1 stop
Multiple Airlines Logo
7:00 am - 12:20 pm
YOW
-
SFO
8h 20m
1 stop
$367Multiple Airlines
Mon, Feb 23 - Thu, Mar 5
Multiple Airlines Logo
2:25 pm - 12:39 am
SFO
-
YOW
31h 14m
2 stops
Multiple Airlines Logo
6:45 am - 12:42 pm
YOW
-
SFO
8h 57m
1 stop
$383Multiple Airlines
Mon, Feb 23 - Tue, Mar 3
Multiple Airlines Logo
10:58 pm - 5:25 pm
SFO
-
YOW
15h 27m
2 stops
Multiple Airlines Logo
6:00 am - 12:10 pm
YOW
-
SFO
9h 10m
1 stop
$385Multiple Airlines
Wed, Feb 25 - Tue, Mar 3
Multiple Airlines Logo
10:58 pm - 12:25 am
SFO
-
YOW
22h 27m
2 stops
Multiple Airlines Logo
6:00 am - 12:10 pm
YOW
-
SFO
9h 10m
1 stop
$391Multiple 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 May.

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 December and July, where the average cost of round-trip tickets is $652 and $634 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 3 weeks before departure, which saves you about 49% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 19 weeks before departure.

Good to know

Low seasonOctober
Cheapest flight$159
Best time to beat the crowds but there is an average 9% increase in price.
Most popular time to fly with an average 34% 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 $159 for a one-way ticket and $331 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 is the only airline alliance operating flights between San Francisco and Ottawa.

  • 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 $421 and an overall rating of 7.9, Porter Airlines is the most popular choice. United Airlines is also a great choice for the route, with an average price of $571 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.

Reviews of the 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.
7.9
Porter AirlinesOverall score based on 412 reviews
6.9Entertainment
8.2Boarding
7.9Comfort
7.5Food
8.6Crew
Airline reviews

The Flight took off 2hrs late because there was no pilot showing up when the flight was ready to board.. Though the cabin crew was present and had prepared the plane, the FO turned around after 15 min and went away. A crew to fly the plane finally arrived over an hour later and we were able to board 1h30 min later than planned time... until everything was loaded, we left 2h late from the gate. This was a small plane, so don't expect any Entertainment... Wi-Fi access on board would work, but took an awful amount of time to figure out and get it work (I'm an IT person). Flying as VIPorter customer, I was expecting at least some warm meal, but everything served was just cold.. except the coffee maybe. Even in so-called VIPorter seats, space is cramped and trays are so tiny, you can barely setup your food. Flight caught up during the coast-to-coast crossing and was able to recoup about 45 min from the delay.. still arrived very late in Vancouver and had to wait a long time to get our registered bags. Let's see how the return flight will be in a few days..

6.0 GoodBeat, Jan 2026
YUL - YVR
Read more Porter Airlines reviews

The Flight took off 2hrs late because there was no pilot showing up when the flight was ready to board.. Though the cabin crew was present and had prepared the plane, the FO turned around after 15 min and went away. A crew to fly the plane finally arrived over an hour later and we were able to board 1h30 min later than planned time... until everything was loaded, we left 2h late from the gate. This was a small plane, so don't expect any Entertainment... Wi-Fi access on board would work, but took an awful amount of time to figure out and get it work (I'm an IT person). Flying as VIPorter customer, I was expecting at least some warm meal, but everything served was just cold.. except the coffee maybe. Even in so-called VIPorter seats, space is cramped and trays are so tiny, you can barely setup your food. Flight caught up during the coast-to-coast crossing and was able to recoup about 45 min from the delay.. still arrived very late in Vancouver and had to wait a long time to get our registered bags. Let's see how the return flight will be in a few days..

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!

Due to a known technical error that Porter has not fixed in over a year, I was unable to check in the children on my reservation online and had to do it at the airport. Upon check in, there were no seats together, which was an issue as we had young children. The gate agent did manage to seat us together by moving other passengers, which was appreciated, but the other passengers were never informed, leading to confusion and delay upon boarding. The flight was over an hour late; no explanation or apology was ever issued. The bags on Porter take a long time to arrive--over half an hour at Hamilton on my inbound flight, and not much better on my return to Edmonton.

Much roomer than air Canada! Great flight for the price. No complaints

On my e-boarding pass it shows free wifi, yet the plane I was on didn’t have wifi. Please remove false advertising from your website and boarding passes

As a first time flyer with Porter I was happy with the service and comfort of the airline.

3.5 hr delay for a 1 hr work flight. No information as to why the delay until 20 mins before boarding.

Other than wifi no on board entertainment. Will use them again, roomier seats than other airlines and snacks and beverages, better than average

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

Smaller plane. Food and bar service for free is amazing. Drinks were in glass not plastic cups.

The flight crew where really good. Better then the crew from BNE to SFO

Food should be changed in menu Many muslims travels in this airlime they need to add one Halal meal

left on time, reasonable boarding process arrived early luggage came out quickly

Some flight attendants were great others were cranky. Seats were very tight and sitting on an aisle was very hard as the carts and people walking constantly bumped shoulder and arm.

Pushed back only to get deplaned due to a tire damaged by ground crew. They did at least go pretty fast. The bathrooms should be banned under the Geneva convention. No room to even sit straight on the toilet. The under-seat entertainment units block what little leg room there is.

United airlines has the best customer experience from booking to arrival. I always fly United airlines. The mileage program is excellent

from SFO-> FRA flight, AVML meal was significantly less compared to regular meal, especially no Desert, no Bread, no sides.

Very nice flight love the small aircraft. We had a wonderful flight attendant. Nice to see someone that really enjoys her job. Don't have her name but had a southern accent.

This was an older airplane. The cabin was constantly warm to hot throughout the 10 hour flight and there were no vents to personalize air flow. Also since it was an older plane, the material and comfort of the chairs were very uncomfortable. I left my flight with major soreness on my tailbone.

Seats in waiting area and on plane hard as rock. Fast internet on the flight was great! Crew was kind.

Everything was good except for flight delay, but it was because of the snow storm in the arrival airport.

They lost my bag. Hopefully it will be here tomorrow.

The flight was cancelled less than 24 hours before departure. The alternate flight was a day later going from Grenada to Toronto to Vancouver to Calgary to Montreal. 2 days in the air. Not serious, Very bad service

The trip from LAX to Calgary was aboard a 737-700, which is more than twenty years old. Service was fine, and the food was good, but there was no inflight entertainment, and no WiFi. The flight from Calgary to Vancouver was also delayed more than an hour, due to congestion on the Calgary tarmac. And no food service, but there was in-flight WiFi which made a big difference.

I like the wider seats, Plus lots of legroom, Lacking entertainment, no tv or screen to play with

Liked in-flight wifi Did not like - nothing to complain, really. All good

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

The keg from Edmonton to Toronto My wife found it very cold. Other than that great flight.

Smooth flight Staff were courteous and welcoming upon entering and exiting the plane Pilot and crew provided frequent updates Leg space was not pleasant but manageable

Everything was good except I was a bit disappointed that I had to pay US $150 for bags.

I travelled in Business class for the first time and wish I could do that again.

The flight from SFO to YVR was delayed and my bag did not make it to my next flight from YVR to SYD. It took almost 3 days after I landed to get my bag and when I got it, it was filled with dust

All attendents were very efficient, pleasant and happy. Everything went smoothly. The seats could have been wider. There could have been more free food instead of just one small bar.

They rescheduled me and I had no issues with the new flight

No paper towels in bathroom. Aisle seat difficult to get out of Other than those, excellent service

Both flights are delayed so I rate the whole experience as mediocre.

Bad experience boarding and flight got delayed didn’t make it to my next flight

the seats aren't the most comfy -- too little padding and I could feel whatever the passenger behind me was doing. Otherwise, it's all good.

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

Information on your arrival and departure airports