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Cheap flights from Ottawa to San Francisco from $162

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 6/8. 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

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Ottawa to San Francisco

Cheap round-trip flights

Enter your travel dates to find the best prices.
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
$271WestJet
Thu, Jun 18 - Thu, Jun 25
WestJet Logo
12:25 pm - 9:55 pm
YOW
-
SFO
12h 30m
2 stops
WestJet Logo
6:00 am - 5:15 pm
SFO
-
YOW
8h 15m
1 stop
$272WestJet
Thu, May 7 - Wed, May 27
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
$280WestJet
Sat, Jun 13 - Sat, Jun 20
WestJet Logo
6:55 am - 4:40 pm
YOW
-
SFO
12h 45m
2 stops
WestJet Logo
6:00 am - 5:15 pm
SFO
-
YOW
8h 15m
1 stop
$281WestJet
Wed, Jun 3 - Tue, Jun 9
WestJet Logo
6:55 am - 4:40 pm
YOW
-
SFO
12h 45m
2 stops
WestJet Logo
6:00 am - 5:15 pm
SFO
-
YOW
8h 15m
1 stop
$284WestJet
Wed, Jun 3 - Tue, Jun 9
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
$288WestJet
Tue, Jun 30 - Sat, Jul 4
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
$289WestJet
Tue, Jun 30 - Sat, Jul 4
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
$290WestJet
Wed, Jul 1 - Sun, Jul 5
WestJet Logo
6:00 am - 12:00 pm
YOW
-
SFO
9h 00m
1 stop
WestJet Logo
6:05 pm - 5:35 am
SFO
-
YOW
8h 30m
1 stop
$291WestJet
Tue, Jun 30 - Mon, Jul 13
WestJet Logo
6:00 am - 12:00 pm
YOW
-
SFO
9h 00m
1 stop
WestJet Logo
6:00 am - 7:20 pm
SFO
-
YOW
10h 20m
1 stop
$292WestJet
Tue, Jun 30 - Wed, Jul 15

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WestJet flights from Ottawa to San Francisco

Our best WestJet deals on Ottawa to San Francisco flight tickets
WestJet
Jun 18
YOW12:25 pmOttawa
12h 30m
2 stops
SFO9:55 pmSan Francisco
Jun 25
SFO6:05 pmSan Francisco
8h 30m
1 stop
YOW5:35 amOttawa
$271
WestJet
May 7
YOW12:25 pmOttawa
12h 30m
2 stops
SFO9:55 pmSan Francisco
May 27
SFO6:00 amSan Francisco
8h 15m
1 stop
YOW5:15 pmOttawa
$272
WestJet
Jun 13
YOW12:25 pmOttawa
12h 30m
2 stops
SFO9:55 pmSan Francisco
Jun 20
SFO6:05 pmSan Francisco
8h 30m
1 stop
YOW5:35 amOttawa
$280

Porter Airlines flights from Ottawa to San Francisco

Our best Porter Airlines deals on Ottawa to San Francisco flight tickets
Porter Airlines
Apr 29
YOW6:45 amOttawa
9h 00m
1 stop
SFO12:45 pmSan Francisco
May 13
SFO1:20 pmSan Francisco
8h 05m
1 stop
YOW12:25 amOttawa
$325
Porter Airlines
May 1
YOW7:00 amOttawa
8h 23m
1 stop
SFO12:23 pmSan Francisco
May 13
SFO1:20 pmSan Francisco
8h 05m
1 stop
YOW12:25 amOttawa
$343
Porter Airlines
Apr 29
YOW6:45 amOttawa
9h 00m
1 stop
SFO12:45 pmSan Francisco
May 12
SFO1:20 pmSan Francisco
8h 05m
1 stop
YOW12:25 amOttawa
$359

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 April 18, 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

Thu 6/18

12:25 pm-9:55 pm

2 stops12h 30m

San Francisco

Thu 6/25

6:05 pm-5:35 am

1 stop8h 30m

$271

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Thu 5/7

12:25 pm-9:55 pm

2 stops12h 30m

San Francisco

Wed 5/27

6:00 am-5:15 pm

1 stop8h 15m

$272

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Sat 6/13

12:25 pm-9:55 pm

2 stops12h 30m

San Francisco

Sat 6/20

6:05 pm-5:35 am

1 stop8h 30m

$280

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Wed 6/3

6:55 am-4:40 pm

2 stops12h 45m

San Francisco

Tue 6/9

6:00 am-5:15 pm

1 stop8h 15m

$281

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Wed 6/3

6:55 am-4:40 pm

2 stops12h 45m

San Francisco

Tue 6/9

6:00 am-5:15 pm

1 stop8h 15m

$284

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Tue 6/30

12:25 pm-9:55 pm

2 stops12h 30m

San Francisco

Sat 7/4

6:05 pm-5:35 am

1 stop8h 30m

$288
Quickest round-trip

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Tue 6/30

6:00 am-12:00 pm

1 stop9h 00m

San Francisco

Sat 7/4

6:00 am-5:15 pm

1 stop8h 15m

$289

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Wed 7/1

12:25 pm-9:55 pm

2 stops12h 30m

San Francisco

Sun 7/5

6:05 pm-5:35 am

1 stop8h 30m

$290

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Tue 6/30

6:00 am-12:00 pm

1 stop9h 00m

San Francisco

Mon 7/13

6:05 pm-5:35 am

1 stop8h 30m

$291

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Tue 6/30

6:00 am-12:00 pm

1 stop9h 00m

San Francisco

Wed 7/15

6:00 am-7:20 pm

1 stop10h 20m

$292

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 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 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 $409 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 $317 on momondo.

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

As of April 2026, prices for Ottawa to San Francisco flights are approximately 34% 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
3,321 reviews
Search WestJet flights
Porter AirlinesPriceFrom $274Free CancellationRating
8.0
435 reviews
Search Porter Airlines flights
Air CanadaPriceFrom $328Free CancellationRating
7.1
10,935 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
Walnut Creek
Roseville
Hayward
Berkeley
Santa Clara
Fremont
Big Sur
Vallejo
Calistoga
Daly City
Salinas
Half Moon Bay
Milpitas
Pacific Grove
Sunnyvale

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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