Cheap Flights From Macdonald-Cartier Intl. (YOW) To San Francisco Intl. (SFO)

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Cheapest Flights from Ottawa (YOW) to San Francisco (SFO)

The cheapest flights to San Francisco Intl. found within the past 7 days were CA $391 round trip and CA $235 one way. Prices and availability subject to change. Additional terms may apply.

Tue, Apr 21 - Mon, Apr 27
YOW
Ottawa
SFO
San Francisco
CA $391 Roundtrip, found 15 hours ago
CA $391
Roundtrip
found 15 hours ago
Select WestJet flight, departing Tue, Apr 21 from Ottawa to San Francisco, returning Mon, Apr 27, priced at CA $391 found 15 hours ago
Fri, Apr 24 - Fri, May 1
YOW
Ottawa
SFO
San Francisco
CA $392 Roundtrip, found 4 hours ago
CA $392
Roundtrip
found 4 hours ago
Select WestJet flight, departing Fri, Apr 24 from Ottawa to San Francisco, returning Fri, May 1, priced at CA $392 found 4 hours ago
Sun, May 31 - Thu, Jun 4
YOW
Ottawa
SFO
San Francisco
CA $439 Roundtrip, found 3 hours ago
CA $439
Roundtrip
found 3 hours ago
Select WestJet flight, departing Sun, May 31 from Ottawa to San Francisco, returning Thu, Jun 4, priced at CA $439 found 3 hours ago
Wed, Apr 29 - Mon, May 4
YOW
Ottawa
SFO
San Francisco
CA $446 Roundtrip, found 2 hours ago
CA $446
Roundtrip
found 2 hours ago
Select Porter Airlines flight, departing Wed, Apr 29 from Ottawa to San Francisco, returning Mon, May 4, priced at CA $446 found 2 hours ago
Fri, Apr 24 - Fri, May 1
YOW
Ottawa
SFO
San Francisco
CA $451 Roundtrip, found 4 hours ago
CA $451
Roundtrip
found 4 hours ago
Select WestJet flight, departing Fri, Apr 24 from Ottawa to San Francisco, returning Fri, May 1, priced at CA $451 found 4 hours ago
Fri, Apr 24 - Fri, May 1
YOW
Ottawa
SFO
San Francisco
CA $473 Roundtrip, found 4 hours ago
CA $473
Roundtrip
found 4 hours ago
Select Porter Airlines flight, departing Fri, Apr 24 from Ottawa to San Francisco, returning Fri, May 1, priced at CA $473 found 4 hours ago
Wed, May 27 - Wed, Jun 10
YOW
Ottawa
SFO
San Francisco
CA $475 Roundtrip, found 3 days ago
CA $475
Roundtrip
found 3 days ago
Select Porter Airlines flight, departing Wed, May 27 from Ottawa to San Francisco, returning Wed, Jun 10, priced at CA $475 found 3 days ago
Mon, May 4 - Wed, May 13
YOW
Ottawa
SFO
San Francisco
CA $481 Roundtrip, found 4 hours ago
CA $481
Roundtrip
found 4 hours ago
Select WestJet flight, departing Mon, May 4 from Ottawa to San Francisco, returning Wed, May 13, priced at CA $481 found 4 hours ago
Fri, Apr 17 - Thu, Apr 23
YOW
Ottawa
SFO
San Francisco
CA $509 Roundtrip, found 6 days ago
CA $509
Roundtrip
found 6 days ago
Select Porter Airlines flight, departing Fri, Apr 17 from Ottawa to San Francisco, returning Thu, Apr 23, priced at CA $509 found 6 days ago
Tue, Mar 10 - Tue, May 5
YOW
Ottawa
SFO
San Francisco
CA $517 Roundtrip, found 20 hours ago
CA $517
Roundtrip
found 20 hours ago
Select WestJet flight, departing Tue, Mar 10 from Ottawa to San Francisco, returning Tue, May 5, priced at CA $517 found 20 hours ago

Frequently asked questions

Are there direct flights from Ottawa Intl. Airport to San Francisco Airport?
You'll have trouble finding a flight straight from Macdonald-Cartier Intl. Airport (YOW) to SFO, but we have the next best thing. Air Canada, Austrian Airlines and Air New Zealand offer flights with only one stopover.
What airlines fly from Ottawa International Airport to SFO?
Unfortunately, there are no airlines currently offering direct flights between Ottawa International Airport and San Francisco Airport. In the interest of saving time, book well ahead to find the ideal price and route.
What is the best day to buy a plane ticket?
Airfares offered on Friday tend to be the cheapest, according to flight demand on Travelocity.ca in 2021. Purchasing your airfares on a Thursday or Saturday can also provide better value, however our advice if you're looking to save money is to avoid booking on a Wednesday or Sunday. Our data shows that those two days have the highest ticket values on average, so keep this in mind if you're browsing flight deals.
What are the cheapest days to fly?
Frequent travellers may already know this, but earlier in the week is often the cheapest time to fly. Flights departing on a Monday are the cheapest of the week. Since flights towards the middle of the week tend to be more popular, this causes the prices to rise. This is why, on average, airfares booked on Travelocity.ca in 2021 were most expensive for Wednesday departures.
How far in advance can you book a flight?
Here's the deal: It is typically possible to start comparing international airfares on Travelocity.ca up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 2-4 weeks prior to their travel dates.*According to flight demand on Travelocity.ca from January to December 2021. Savings are subject to change and may vary depending on selections made.
*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.