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Cheap flights from Ottawa to San Francisco from $131

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 12/12. 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.
Multiple Airlines Logo
6:00 am - 12:12 pmYOW-SFO
9h 12m1 stop
Multiple Airlines Logo
10:15 am - 6:23 pmSFO-YOW
29h 08m2 stops
$228Multiple Airlines
Find Deal
jue., ene. 22 - dom., feb. 8
WestJet Logo
6:00 am - 11:54 amYOW-SFO
8h 54m1 stop
WestJet Logo
12:50 pm - 12:40 amSFO-YOW
8h 50m1 stop
$234WestJet
Find Deal
dom., may. 3 - vie., may. 8
WestJet Logo
6:00 am - 11:54 amYOW-SFO
8h 54m1 stop
WestJet Logo
12:50 pm - 12:40 amSFO-YOW
8h 50m1 stop
$235WestJet
Find Deal
dom., may. 3 - vie., may. 8
WestJet Logo
6:00 am - 12:12 pmYOW-SFO
9h 12m1 stop
WestJet Logo
1:00 pm - 12:40 amSFO-YOW
8h 40m1 stop
$237WestJet
Find Deal
jue., ene. 22 - jue., feb. 5
WestJet Logo
6:00 am - 11:54 amYOW-SFO
8h 54m1 stop
WestJet Logo
7:30 am - 12:22 amSFO-YOW
13h 52m2 stops
$239WestJet
Find Deal
dom., may. 3 - vie., may. 8
Multiple Airlines Logo
6:00 am - 12:12 pmYOW-SFO
9h 12m1 stop
Multiple Airlines Logo
10:15 am - 6:23 pmSFO-YOW
29h 08m2 stops
$240Multiple Airlines
Find Deal
vie., ene. 23 - dom., feb. 8
WestJet Logo
3:45 pm - 1:57 pmYOW-SFO
25h 12m2 stops
WestJet Logo
12:50 pm - 5:28 amSFO-YOW
13h 38m2 stops
$242WestJet
Find Deal
dom., may. 3 - vie., may. 8
Multiple Airlines Logo
6:00 am - 12:12 pmYOW-SFO
9h 12m1 stop
Multiple Airlines Logo
10:15 am - 6:23 pmSFO-YOW
29h 08m2 stops
$247Multiple Airlines
Find Deal
jue., ene. 22 - jue., feb. 5
WestJet Logo
6:00 am - 12:10 pmYOW-SFO
9h 10m1 stop
WestJet Logo
1:00 pm - 6:23 pmSFO-YOW
26h 23m2 stops
$250WestJet
Find Deal
vie., feb. 20 - dom., mar. 8
Multiple Airlines Logo
6:00 am - 12:12 pmYOW-SFO
9h 12m1 stop
Multiple Airlines Logo
10:15 am - 8:05 pmSFO-YOW
30h 50m1 stop
$254Multiple Airlines
Find Deal
vie., ene. 23 - dom., feb. 8

Porter Airlines flights from Ottawa to San Francisco

Our best Porter Airlines deals on Ottawa to San Francisco flight tickets
Porter Airlines
Feb 20
YOW6:45 amOttawa
8h 55m
1 stop
SFO12:40 pmSan Francisco
Mar 9
SFO1:40 pmSan Francisco
8h 01m
1 stop
YOW12:41 amOttawa
$277
Find similar
Porter Airlines
Feb 21
YOW6:45 amOttawa
8h 55m
1 stop
SFO12:40 pmSan Francisco
Mar 9
SFO1:40 pmSan Francisco
8h 01m
1 stop
YOW12:41 amOttawa
$296
Find similar
Porter Airlines
Dec 4
YOW6:45 amOttawa
8h 55m
1 stop
SFO12:40 pmSan Francisco
Dec 8
SFO1:40 pmSan Francisco
8h 01m
1 stop
YOW12:41 amOttawa
$548
Find similar

Air Canada flights from Ottawa to San Francisco

Our best Air Canada deals on Ottawa to San Francisco flight tickets
Air Canada
Jan 21
YOW7:45 amOttawa
10h 50m
1 stop
SFO3:35 pmSan Francisco
Feb 10
SFO6:00 pmSan Francisco
12h 23m
2 stops
YOW9:23 amOttawa
$282
Find similar
Air Canada
Feb 18
YOW12:00 pmOttawa
11h 34m
2 stops
SFO8:34 pmSan Francisco
Mar 11
SFO2:30 pmSan Francisco
8h 08m
1 stop
YOW1:38 amOttawa
$288
Find similar
Air Canada
Jan 12
YOW7:25 pmOttawa
18h 29m
1 stop
SFO10:54 amSan Francisco
Feb 4
SFO6:00 pmSan Francisco
9h 43m
1 stop
YOW6:43 amOttawa
$292
Find similar

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 noviembre 26, 2025.
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

jue. 1/22

6:00 am-12:12 pm

1 stop9h 12m

San Francisco

dom. 2/8

10:15 am-6:23 pm

2 stops29h 08m

$228

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

dom. 5/3

6:00 am-11:54 am

1 stop8h 54m

San Francisco

vie. 5/8

12:50 pm-12:40 am

1 stop8h 50m

$234

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

dom. 5/3

6:00 am-11:54 am

1 stop8h 54m

San Francisco

vie. 5/8

12:50 pm-12:40 am

1 stop8h 50m

$235

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

jue. 1/22

6:00 am-12:12 pm

1 stop9h 12m

San Francisco

jue. 2/5

1:00 pm-12:40 am

1 stop8h 40m

$237

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

dom. 5/3

6:00 am-11:54 am

1 stop8h 54m

San Francisco

vie. 5/8

7:30 am-12:22 am

2 stops13h 52m

$239

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

vie. 1/23

6:00 am-12:12 pm

1 stop9h 12m

San Francisco

dom. 2/8

10:15 am-6:23 pm

2 stops29h 08m

$240

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

dom. 5/3

3:45 pm-1:57 pm

2 stops25h 12m

San Francisco

vie. 5/8

12:50 pm-5:28 am

2 stops13h 38m

$242

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

jue. 1/22

6:00 am-12:12 pm

1 stop9h 12m

San Francisco

jue. 2/5

10:15 am-6:23 pm

2 stops29h 08m

$247

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

vie. 2/20

6:00 am-12:10 pm

1 stop9h 10m

San Francisco

dom. 3/8

1:00 pm-6:23 pm

2 stops26h 23m

$250

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

vie. 1/23

6:00 am-12:12 pm

1 stop9h 12m

San Francisco

dom. 2/8

10:15 am-8:05 pm

1 stop30h 50m

$254

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 cheapest month to fly to San Francisco?

If you aren’t able to travel to San Francisco during the month of January, then flying in May is also cheap. Prices for this month can be found on momondo for an average of $301.

What is the cheapest day to depart on your flight to San Francisco?

The cheapest day to depart from Ottawa to San Francisco is on a Thursday when prices can be found for as low as $458. The most expensive day to fly to San Francisco is Sunday, with ticket prices averaging around $645.

What is the cheapest time of day to depart on your flight to San Francisco?

Our data shows that the cheapest Ottawa to San Francisco flights are usually those with departure times in the afternoon. Our users have found flights to San Francisco in the afternoon for as low as $463. Flights in the morning are often more expensive with an average ticket price of $536.

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 $366 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 $299 on momondo.

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

As of November 2025, 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 55m

Direct flights

None
The fastest flight from Ottawa to San Francisco takes 8h 55m
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 $241Free CancellationRating
7.4
9,046 reviews
Search United Airlines flights
WestJetPriceFrom $247Free CancellationRating
7.2
3,173 reviews
Search WestJet flights
Porter AirlinesPriceFrom $259Free CancellationRating
8.0
394 reviews
Search Porter Airlines flights
Air CanadaPriceFrom $274Free CancellationRating
7.1
10,477 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
Daly City
Walnut Creek
Fremont
Half Moon Bay
Vallejo
Salinas
Livermore
Turlock
Pacific Grove

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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vie. 12/26
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