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Cheap flights from Ottawa to San Francisco from $186

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 2/9. 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
0 bags

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Find the cheapest flights from Ottawa to San Francisco

Cheap round-trip flights

Enter your travel dates to find the best prices.
WestJet Logo
3:45 pm - 9:24 pm
YOW
-
SFO
8h 39m
1 stop
WestJet Logo
12:50 pm - 12:40 am
SFO
-
YOW
8h 50m
1 stop
$290WestJet
Fri, May 15 - Fri, May 29
Multiple Airlines Logo
6:00 am - 12:10 pm
YOW
-
SFO
9h 10m
1 stop
Multiple Airlines Logo
10:15 am - 6:23 pm
SFO
-
YOW
29h 08m
2 stops
$296Multiple Airlines
Tue, Mar 3 - Sun, Mar 8
WestJet Logo
3:45 pm - 9:24 pm
YOW
-
SFO
8h 39m
1 stop
WestJet Logo
12:50 pm - 5:28 am
SFO
-
YOW
13h 38m
2 stops
$297WestJet
Fri, May 15 - Fri, May 29
WestJet Logo
3:45 pm - 9:24 pm
YOW
-
SFO
8h 39m
1 stop
WestJet Logo
12:50 pm - 5:28 am
SFO
-
YOW
13h 38m
2 stops
$298WestJet
Fri, May 15 - Fri, May 29
WestJet Logo
7:45 am - 11:54 am
YOW
-
SFO
31h 09m
1 stop
WestJet Logo
7:30 am - 6:25 pm
SFO
-
YOW
7h 55m
1 stop
$299WestJet
Wed, Jul 1 - Fri, Jul 31
Multiple Airlines Logo
6:00 am - 12:10 pm
YOW
-
SFO
9h 10m
1 stop
Multiple Airlines Logo
10:15 am - 2:44 pm
SFO
-
YOW
25h 29m
1 stop
$301Multiple Airlines
Tue, Mar 3 - Sun, Mar 8
WestJet Logo
5:15 pm - 11:54 am
YOW
-
SFO
21h 39m
2 stops
WestJet Logo
7:30 am - 6:25 pm
SFO
-
YOW
7h 55m
1 stop
$304WestJet
Wed, Jul 1 - Fri, Jul 31
WestJet Logo
3:45 pm - 1:57 pm
YOW
-
SFO
25h 12m
2 stops
WestJet Logo
12:50 pm - 5:28 am
SFO
-
YOW
13h 38m
2 stops
$307WestJet
Wed, Jul 1 - Fri, Jul 31
WestJet Logo
6:15 am - 5:14 pm
YOW
-
SFO
13h 59m
2 stops
WestJet Logo
7:30 am - 12:22 am
SFO
-
YOW
13h 52m
2 stops
$313WestJet
Fri, May 15 - Fri, May 29
Multiple Airlines Logo
5:40 am - 12:45 pm
YOW
-
SFO
10h 05m
1 stop
Multiple Airlines Logo
10:14 pm - 12:40 am
SFO
-
YOW
23h 26m
2 stops
$345Multiple Airlines
Wed, Mar 18 - Tue, Mar 24

American Airlines flights from Ottawa to San Francisco

Our best American Airlines deals on Ottawa to San Francisco flight tickets
American Airlines
Jan 21
YOW6:45 amOttawa
18h 40m
2 stops
SFO10:25 pmSan Francisco
Jan 25
SFO6:00 amSan Francisco
15h 43m
2 stops
YOW12:43 amOttawa
$790
American Airlines
Jan 21
YOW6:45 amOttawa
18h 40m
2 stops
SFO10:25 pmSan Francisco
Jan 25
SFO7:01 pmSan Francisco
18h 52m
3 stops
YOW4:53 pmOttawa
$860
American Airlines
Jan 18
YOW6:45 amOttawa
18h 43m
2 stops
SFO10:28 pmSan Francisco
Jan 20
SFO12:17 amSan Francisco
13h 36m
2 stops
YOW4:53 pmOttawa
$871

WestJet flights from Ottawa to San Francisco

Our best WestJet deals on Ottawa to San Francisco flight tickets
WestJet
May 15
YOW3:45 pmOttawa
8h 39m
1 stop
SFO9:24 pmSan Francisco
May 29
SFO12:50 pmSan Francisco
8h 50m
1 stop
YOW12:40 amOttawa
$290
WestJet
May 15
YOW3:45 pmOttawa
8h 39m
1 stop
SFO9:24 pmSan Francisco
May 29
SFO12:50 pmSan Francisco
13h 38m
2 stops
YOW5:28 amOttawa
$297
WestJet
May 15
YOW3:45 pmOttawa
8h 39m
1 stop
SFO9:24 pmSan Francisco
May 29
SFO12:50 pmSan Francisco
13h 38m
2 stops
YOW5:28 amOttawa
$298

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 January 15, 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

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Fri 5/15

3:45 pm-9:24 pm

1 stop8h 39m

San Francisco

Fri 5/29

12:50 pm-12:40 am

1 stop8h 50m

$290

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Tue 3/3

6:00 am-12:10 pm

1 stop9h 10m

San Francisco

Sun 3/8

10:15 am-6:23 pm

2 stops29h 08m

$296

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Fri 5/15

3:45 pm-9:24 pm

1 stop8h 39m

San Francisco

Fri 5/29

12:50 pm-5:28 am

2 stops13h 38m

$297

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Fri 5/15

3:45 pm-9:24 pm

1 stop8h 39m

San Francisco

Fri 5/29

12:50 pm-5:28 am

2 stops13h 38m

$298

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Wed 7/1

7:45 am-11:54 am

1 stop31h 09m

San Francisco

Fri 7/31

7:30 am-6:25 pm

1 stop7h 55m

$299

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Tue 3/3

6:00 am-12:10 pm

1 stop9h 10m

San Francisco

Sun 3/8

10:15 am-2:44 pm

1 stop25h 29m

$301

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Wed 7/1

5:15 pm-11:54 am

2 stops21h 39m

San Francisco

Fri 7/31

7:30 am-6:25 pm

1 stop7h 55m

$304

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Wed 7/1

3:45 pm-1:57 pm

2 stops25h 12m

San Francisco

Fri 7/31

12:50 pm-5:28 am

2 stops13h 38m

$307

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Fri 5/15

6:15 am-5:14 pm

2 stops13h 59m

San Francisco

Fri 5/29

7:30 am-12:22 am

2 stops13h 52m

$313

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Wed 3/18

5:40 am-12:45 pm

1 stop10h 05m

San Francisco

Tue 3/24

10:14 pm-12:40 am

2 stops23h 26m

$345

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 May, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $312.

How far in advance should I book a flight 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 $361 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 $306 on momondo.

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

As of January 2026, prices for Ottawa to San Francisco flights are approximately 3% more expensive 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 54m

Direct flights

None
The fastest flight from Ottawa to San Francisco takes 8h 54m
There are no direct flights from Ottawa to San Francisco. There are no popular flight routes from Ottawa to San Francisco.
Search flight deals

  • How far is Ottawa to San Francisco by plane?

    There are 2433.0 mi between Ottawa and San Francisco. Flights usually cover this in 8h 54m, 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
United AirlinesPriceFrom $139Free CancellationRating
7.4
9,164 reviews
Search United Airlines flights
WestJetPriceFrom $247Free CancellationRating
7.2
3,243 reviews
Search WestJet flights
Porter AirlinesPriceFrom $259Free CancellationRating
8.0
407 reviews
Search Porter Airlines flights
Air CanadaPriceFrom $274Free CancellationRating
7.1
10,624 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
Bodega Bay
Roseville
Hayward
Calistoga
Big Sur
Santa Clara
Berkeley
Walnut Creek
Fremont
Half Moon Bay
Daly City
Vallejo
Livermore
Salinas
Sunnyvale
Turlock

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.

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