Cheap Flights from Ottawa International to San Francisco International

Compare Ottawa International to San Francisco International flight deals

Find the cheapest month or even day of the year to fly to San Francisco International

Book the best San Francisco International fare with no extra fees

Flight deals from Ottawa International to San Francisco International

Looking for a cheap last-minute deal or the best return flight from Ottawa International Airport to San Francisco International Airport? If you want to travel next month, return fares start from R 5,729. Find the lowest prices on one-way and return tickets right here.

San Francisco.R 3,252 per passenger.Departing Sat, 22 Aug.One-way flight with WestJet.Outbound indirect flight with WestJet, departs from Ottawa International on Sat, 22 Aug, arriving in San Francisco International.Price includes taxes and charges.From R 3,252, select.

San Francisco.R 3,256 per passenger.Departing Sat, 5 Sep.One-way flight with WestJet.Outbound indirect flight with WestJet, departs from Ottawa International on Sat, 5 Sep, arriving in San Francisco International.Price includes taxes and charges.From R 3,256, select.

San Francisco.R 3,407 per passenger.Departing Sun, 11 Oct.One-way flight with WestJet.Outbound indirect flight with WestJet, departs from Ottawa International on Sun, 11 Oct, arriving in San Francisco International.Price includes taxes and charges.From R 3,407, select.

San Francisco.R 3,817 per passenger.Departing Mon, 23 Nov.One-way flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departs from Ottawa International on Mon, 23 Nov, arriving in San Francisco International.Price includes taxes and charges.From R 3,817, select.

San Francisco.R 4,042 per passenger.Departing Wed, 16 Dec.One-way flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departs from Ottawa International on Wed, 16 Dec, arriving in San Francisco International.Price includes taxes and charges.From R 4,042, select.

San Francisco.R 4,680 per passenger.Departing Wed, 13 Jan.One-way flight with WestJet.Outbound indirect flight with WestJet, departs from Ottawa International on Wed, 13 Jan, arriving in San Francisco International.Price includes taxes and charges.From R 4,680, select.

San Francisco.R 7,456 per passenger.Departing Wed, 29 Jul.One-way flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departs from Ottawa International on Wed, 29 Jul, arriving in San Francisco International.Price includes taxes and charges.From R 7,456, select.

San Francisco.R 7,581 per passenger.Departing Sun, 21 Feb.One-way flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departs from Ottawa International on Sun, 21 Feb, arriving in San Francisco International.Price includes taxes and charges.From R 7,581, select.

Find the cheapest month to fly from Ottawa International to San Francisco International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Ottawa International to San Francisco International flights are currently cheapest in August.

Jul

Aug

Sep

Oct

Nov

Dec

Jan

Feb

Mar

Apr

May

Jun

Ottawa International to San Francisco International: Alternative routes

Compare routes from Ottawa International to San Francisco below. You may find an airport to fly into that's cheaper, faster, or easier than San Francisco International.

Ottawa to San Francisco: Flight information

The things to know before you go.

Cheapest flight found	R 3,252
Cheapest month to fly	August

Finding cheap flights from Ottawa International to San Francisco International: Frequently asked questions

How much are return flights from Ottawa International to San Francisco International?

The best price we found for a return flight from Ottawa International to San Francisco International is R 5,386. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

Which airlines fly direct from Ottawa International to San Francisco International?

Currently, there are no airlines that fly direct from Ottawa International to San Francisco International. But we found flights with one or more stops from R 5,386.

How many flights are there a week from Ottawa International to San Francisco International?

As of July 2026, there are no flights flying from Ottawa International to San Francisco International.

When is the cheapest time to fly from Ottawa International to San Francisco International?

The cheapest month to fly from Ottawa International to San Francisco International is usually October.

Which upcoming date is cheapest to fly from Ottawa International Airport to San Francisco International Airport on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Ottawa International Airport to San Francisco International Airport on Thursday, 1 October 2026.

Can I get a direct flight from Ottawa International Airport to San Francisco International Airport?

No airlines currently offer direct flights between Ottawa International Airport and San Francisco International Airport. Most routes have one or more stops.

How can I find the best flight deal to San Francisco International?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Francisco International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to San Francisco?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to San Francisco is around 40 days in advance, so don’t leave your flight to the last minute.

Which is the cheapest airline to fly from Ottawa International Airport to San Francisco International with?

Currently, WestJet offers the cheapest flight tickets to San Francisco International.

Travelling from Ottawa International Airport (YOW) to San Francisco International Airport (SFO): what you need to know

San Francisco's timezone is UTC-8, making San Francisco three hours behind Ottawa.
Arriving two hours before an international flight and one hour ahead of a domestic departure are travel rules to live by. Be at the airport with enough time to catch your YOW to SFO flight.
During popular months like July, it's a good idea to get to the airport earlier than usual. Arrive two hours before domestic departures and four hours ahead of an international flight whenever you're flying during a high season in general.

How to find the cheapest flights from Ottawa International Airport (YOW) to San Francisco International Airport (SFO)

At the moment, R 3,252 is the cheapest price we've seen for a one-way Ottawa International Airport to San Francisco International Airport flight. The best price for a return ticket is R 5,386. Remember that fares could change due to availability when booking.
It's usually smart to book early if you're hoping to get cheap tickets from YOW to SFO. That's because airlines change prices based on demand, which tends to increase closer to the date of departure.
If you're willing to be flexible with your travel dates, try using the 'Whole month' search function. It'll find the cheapest price across every month when searching for a flight from Ottawa International Airport to San Francisco International Airport.
Getting your hands on cheap flights from YOW to SFO is a cinch with Price Alerts. Simply set up one of these automatic alerts and we'll notify you when there's a better deal.
Lock in the ideal flight for you with the help of the filters. To see the 'Best,' 'Cheapest' or 'Fastest' flights from Ottawa International Airport to San Francisco International Airport, use the 'Sort by' tool. You can also filter by arrival and departure times, airline, and number of stops.

Handy information about Ottawa International Airport (YOW)

YOW is located at 50 Airport Road.
65% of flights taking off from Ottawa International Airport touch down at their destination on schedule.
To reach Ottawa International Airport from central Ottawa, it takes around 20 minutes if you're planning to drive. Of course, this depends on traffic. It's approximately 14 kilometres from the airport to the city centre.
The trip when using public transport takes about 35 minutes.
Taking an early flight from Ottawa International Airport to San Francisco International Airport? Avoid the last-minute rush to the airport (and sneak in some extra snooze time) by picking one of these hotels close to YOW:

Arriving at San Francisco International Airport (SFO)

The last thing you want is a lengthy journey to your hotel if you're arriving on a late Ottawa International Airport to San Francisco International Airport flight. Book one of these accommodation options near SFO instead:
Fast-track your adventure by picking up a San Francisco International Airport rental car. Grab your wheels from Dollar, Thrifty or Hertz to explore San Francisco and beyond.
For the lowest price, reserve your ride from San Francisco International Airport about one week before you travel.

Getting from San Francisco International Airport (SFO) to central San Francisco

From San Francisco International Airport, San Francisco is approximately 21 kilometres away. It takes around 25 minutes to get to the centre driving.
It takes around 35 minutes to get there by public transport.

When to fly to San Francisco International Airport (SFO)

The quietest month for a flight from Ottawa International Airport to San Francisco International Airport is March, while July is the busiest. Choose the ideal time to go to San Francisco based on whether you prefer a laid-back vibe or a more bustling atmosphere.
Book your flight from Ottawa International Airport to San Francisco International Airport for September if you'd like to go to San Francisco during its warmest month. You can expect temperatures of between 12ºC (54ºF) and 24ºC (75ºF).
January sees average temperatures of between 5ºC (41ºF) and 16ºC (61ºF). Search for cheap tickets from YOW to SFO sometime around then if you want to travel when it's cooler.

Explore more of the United States

San Francisco has loads to offer, but there are so many other corners of the United States you should also see. About 64 kilometres south-east of San Francisco, a trip to San Jose will keep your itinerary busy. Check out popular attractions like Winchester Mystery House, The Tech Interactive and Santa Clara Valley.
Fresno is another must-experience destination in the United States and is around 257 kilometres south-east of San Francisco. No journey is complete without dropping by Forestiere Underground Gardens, Shinzen Japanese Garden and Fresno Chaffee Zoo.