Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Ottawa to San Francisco from $197

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ottawa to San Francisco departing on 8/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Ottawa to San Francisco

Cheap round-trip flights

Enter your travel dates to find the best prices.
WestJet Logo
6:00 am - 12:00 pm
YOW
-
SFO
9h 00m
1 stop
WestJet Logo
6:00 am - 5:15 pm
SFO
-
YOW
8h 15m
1 stop
$324WestJet
Fri, Jul 24 - Tue, Jul 28
WestJet Logo
6:00 am - 12:00 pm
YOW
-
SFO
9h 00m
1 stop
WestJet Logo
6:00 am - 5:15 pm
SFO
-
YOW
8h 15m
1 stop
$342WestJet
Thu, Jul 30 - Wed, Aug 5
Porter Airlines Logo
7:00 am - 12:23 pm
YOW
-
SFO
8h 23m
1 stop
Porter Airlines Logo
1:25 pm - 12:25 am
SFO
-
YOW
8h 00m
1 stop
$351Porter Airlines
Sat, Jul 25 - Wed, Jul 29
WestJet Logo
4:15 pm - 4:40 pm
YOW
-
SFO
27h 25m
1 stop
WestJet Logo
6:05 pm - 5:35 am
SFO
-
YOW
8h 30m
1 stop
$355WestJet
Tue, Jun 30 - Thu, Jul 9
Porter Airlines Logo
7:00 am - 12:20 pm
YOW
-
SFO
8h 20m
1 stop
Porter Airlines Logo
1:20 pm - 12:25 am
SFO
-
YOW
8h 05m
1 stop
$356Porter Airlines
Wed, Sep 23 - Sun, Sep 27
Porter Airlines Logo
7:00 am - 12:20 pm
YOW
-
SFO
8h 20m
1 stop
Porter Airlines Logo
1:20 pm - 12:25 am
SFO
-
YOW
8h 05m
1 stop
$357Porter Airlines
Fri, Sep 25 - Sun, Sep 27
WestJet Logo
12:25 pm - 9:55 pm
YOW
-
SFO
12h 30m
2 stops
WestJet Logo
1:00 pm - 12:40 am
SFO
-
YOW
8h 40m
1 stop
$360WestJet
Thu, Jul 16 - Wed, Jul 22
Porter Airlines Logo
6:45 am - 12:40 pm
YOW
-
SFO
8h 55m
1 stop
Porter Airlines Logo
1:40 pm - 12:39 am
SFO
-
YOW
7h 59m
1 stop
$364Porter Airlines
Sun, Nov 1 - Sat, Nov 7
WestJet Logo
12:25 pm - 9:55 pm
YOW
-
SFO
12h 30m
2 stops
WestJet Logo
1:00 pm - 12:40 am
SFO
-
YOW
8h 40m
1 stop
$366WestJet
Thu, Jul 16 - Wed, Jul 22
WestJet Logo
12:25 pm - 9:55 pm
YOW
-
SFO
12h 30m
2 stops
WestJet Logo
6:05 pm - 5:35 am
SFO
-
YOW
8h 30m
1 stop
$370WestJet
Thu, Aug 20 - Mon, Aug 24

Porter Airlines flights from Ottawa to San Francisco

Our best Porter Airlines deals on Ottawa to San Francisco flight tickets
Porter Airlines
Jul 25
YOW7:00 amOttawa
8h 23m
1 stop
SFO12:23 pmSan Francisco
Jul 29
SFO1:25 pmSan Francisco
8h 00m
1 stop
YOW12:25 amOttawa
$351
Porter Airlines
Sep 23
YOW7:00 amOttawa
8h 20m
1 stop
SFO12:20 pmSan Francisco
Sep 27
SFO1:20 pmSan Francisco
8h 05m
1 stop
YOW12:25 amOttawa
$356
Porter Airlines
Sep 25
YOW7:00 amOttawa
8h 20m
1 stop
SFO12:20 pmSan Francisco
Sep 27
SFO1:20 pmSan Francisco
8h 05m
1 stop
YOW12:25 amOttawa
$357

WestJet flights from Ottawa to San Francisco

Our best WestJet deals on Ottawa to San Francisco flight tickets
WestJet
Jul 24
YOW6:00 amOttawa
9h 00m
1 stop
SFO12:00 pmSan Francisco
Jul 28
SFO6:00 amSan Francisco
8h 15m
1 stop
YOW5:15 pmOttawa
$324
WestJet
Jul 30
YOW6:00 amOttawa
9h 00m
1 stop
SFO12:00 pmSan Francisco
Aug 5
SFO6:00 amSan Francisco
8h 15m
1 stop
YOW5:15 pmOttawa
$342
WestJet
Jun 30
YOW4:15 pmOttawa
27h 25m
1 stop
SFO4:40 pmSan Francisco
Jul 9
SFO6:05 pmSan Francisco
8h 30m
1 stop
YOW5:35 amOttawa
$355

momondo Fare Finder

 
Customize your flight search to find flights from Ottawa to San Francisco that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated June 5, 2026.
Use the filters below to find and compare flights from Ottawa to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Fri 7/24

6:00 am-12:00 pm

1 stop9h 00m

San Francisco

Tue 7/28

6:00 am-5:15 pm

1 stop8h 15m

$324

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Thu 7/30

6:00 am-12:00 pm

1 stop9h 00m

San Francisco

Wed 8/5

6:00 am-5:15 pm

1 stop8h 15m

$342
Quickest round-trip

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Sat 7/25

7:00 am-12:23 pm

1 stop8h 23m

San Francisco

Wed 7/29

1:25 pm-12:25 am

1 stop8h 00m

$351

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Tue 6/30

4:15 pm-4:40 pm

1 stop27h 25m

San Francisco

Thu 7/9

6:05 pm-5:35 am

1 stop8h 30m

$355

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Wed 9/23

7:00 am-12:20 pm

1 stop8h 20m

San Francisco

Sun 9/27

1:20 pm-12:25 am

1 stop8h 05m

$356

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Fri 9/25

7:00 am-12:20 pm

1 stop8h 20m

San Francisco

Sun 9/27

1:20 pm-12:25 am

1 stop8h 05m

$357

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Thu 7/16

12:25 pm-9:55 pm

2 stops12h 30m

San Francisco

Wed 7/22

1:00 pm-12:40 am

1 stop8h 40m

$360

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Sun 11/1

6:45 am-12:40 pm

1 stop8h 55m

San Francisco

Sat 11/7

1:40 pm-12:39 am

1 stop7h 59m

$364

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Thu 7/16

12:25 pm-9:55 pm

2 stops12h 30m

San Francisco

Wed 7/22

1:00 pm-12:40 am

1 stop8h 40m

$366

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Thu 8/20

12:25 pm-9:55 pm

2 stops12h 30m

San Francisco

Mon 8/24

6:05 pm-5:35 am

1 stop8h 30m

$370

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to San Francisco from

How to get the cheapest flight ticket from Ottawa to San Francisco

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Ottawa and San Francisco?

What is the cheapest month to fly to San Francisco?

If you aren’t able to travel to San Francisco during the month of September, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $351.

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

You are more likely to see cheaper flights to San Francisco from Ottawa when booking weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around $428 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Francisco from Ottawa for as low as $321 on momondo.

How have Ottawa to San Francisco flight prices changed over time?

As of June 2026, prices for Ottawa to San Francisco flights are approximately 18% cheaper when compared to flights at the same time last year.

When to book flights from Ottawa to San Francisco

Are you open to changing your travel dates? Check out the ideal times to fly from Ottawa to San Francisco according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ottawa to San Francisco (YOW to SFO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ottawa to San Francisco

Fastest flight time

8h 20m

Direct flights

None
The fastest flight from Ottawa to San Francisco takes 8h 20m
There are no direct flights from Ottawa to San Francisco. There are no popular flight routes from Ottawa to San Francisco.
Search flight deals

Frequently asked questions about flying from Ottawa to San Francisco

  • How far is Ottawa to San Francisco by plane?

    There are 2432.8 mi between Ottawa and San Francisco. Flights usually cover this in 8h 20m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Ottawa Airport to San Francisco Airport?

    Prices for flights from Ottawa Airport to San Francisco Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Ottawa Airport to San Francisco Airport?

  • How old do you have to be to fly from Ottawa Airport to San Francisco Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ottawa Airport to San Francisco Airport.

  • What documentation or ID do you need to fly to San Francisco Airport?

    The travel and health documents you'll need for your trip to San Francisco Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Francisco Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Ottawa to San Francisco?

Best airlines flying from Ottawa to San Francisco

Compare and see reviews for airlines that fly from Ottawa to San Francisco with momondo
Airline
Rating
Free Cancellation
Price
WestJetPriceFrom $220Free CancellationRating
7.2
3,351 reviews
Search WestJet flights
Porter AirlinesPriceFrom $292Free CancellationRating
8.0
440 reviews
Search Porter Airlines flights
Air CanadaPriceFrom $328Free CancellationRating
7.1
11,129 reviews
Search Air Canada flights

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Santa Cruz
Carmel-by-the-Sea
Modesto
Sonoma
Hayward
Roseville
Bodega Bay
Walnut Creek
Santa Clara
Berkeley
Fremont
Vallejo
Sunnyvale
Big Sur
South San Francisco
Pacific Grove
Daly City
Burlingame
Calistoga
Salinas

Why use momondo?

Why should I use momondo to find a flight deal from Ottawa to San Francisco?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Ottawa to San Francisco. momondo saves you time and could save you money on your trip.

Can I find flights from Ottawa to San Francisco with flexible booking policies on momondo?

Yes. All flights to San Francisco from Ottawa on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Ottawa to San Francisco?

momondo provides multiple filters to help you find the best flight to San Francisco from Ottawa. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Ottawa to San Francisco right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Ottawa to San Francisco now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to San Francisco and let you know when they change.

An easier way to manage your San Francisco trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sun 7/5
Sun 7/12
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States