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Cheap flights from Ottawa to San Francisco from C$ 246

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 5/2. 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

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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
6:00 a.m. - 12:10 p.m.
YOW
-
SFO
9h 10m1 stop
WestJet Logo
1:00 p.m. - 12:40 a.m.
SFO
-
YOW
8h 40m1 stop
C$ 333WestJet
Sun, 1 Mar - Thu, 12 Mar
WestJet Logo
6:00 a.m. - 12:10 p.m.
YOW
-
SFO
9h 10m1 stop
WestJet Logo
1:00 p.m. - 12:39 a.m.
SFO
-
YOW
32h 39m2 stops
C$ 369WestJet
Tue, 24 Feb - Fri, 27 Feb
Multiple Airlines Logo
6:00 a.m. - 12:10 p.m.
YOW
-
SFO
9h 10m1 stop
Multiple Airlines Logo
10:15 a.m. - 6:23 p.m.
SFO
-
YOW
29h 08m2 stops
C$ 375Multiple Airlines
Tue, 24 Feb - Sun, 1 Mar
WestJet Logo
6:15 a.m. - 5:14 p.m.
YOW
-
SFO
13h 59m2 stops
WestJet Logo
12:50 p.m. - 12:40 a.m.
SFO
-
YOW
8h 50m1 stop
C$ 380WestJet
Fri, 15 May - Fri, 29 May
WestJet Logo
6:15 a.m. - 5:14 p.m.
YOW
-
SFO
13h 59m2 stops
WestJet Logo
7:30 a.m. - 6:25 p.m.
SFO
-
YOW
7h 55m1 stop
C$ 382WestJet
Fri, 15 May - Fri, 29 May
Multiple Airlines Logo
6:00 a.m. - 12:10 p.m.
YOW
-
SFO
9h 10m1 stop
Multiple Airlines Logo
10:15 a.m. - 2:44 p.m.
SFO
-
YOW
25h 29m1 stop
C$ 389Multiple Airlines
Tue, 24 Feb - Sun, 1 Mar
WestJet Logo
6:15 a.m. - 5:14 p.m.
YOW
-
SFO
13h 59m2 stops
WestJet Logo
7:30 a.m. - 12:22 a.m.
SFO
-
YOW
13h 52m2 stops
C$ 392WestJet
Fri, 15 May - Fri, 29 May
WestJet Logo
5:45 p.m. - 12:10 p.m.
YOW
-
SFO
21h 25m1 stop
WestJet Logo
1:00 p.m. - 12:40 a.m.
SFO
-
YOW
8h 40m1 stop
C$ 403WestJet
Wed, 4 Mar - Fri, 13 Mar
Multiple Airlines Logo
6:00 a.m. - 12:10 p.m.
YOW
-
SFO
9h 10m1 stop
Multiple Airlines Logo
10:15 a.m. - 6:23 p.m.
SFO
-
YOW
29h 08m2 stops
C$ 410Multiple Airlines
Sun, 1 Mar - Thu, 12 Mar
WestJet Logo
5:45 p.m. - 12:10 p.m.
YOW
-
SFO
21h 25m1 stop
WestJet Logo
1:00 p.m. - 12:40 a.m.
SFO
-
YOW
8h 40m1 stop
C$ 412WestJet
Mon, 2 Mar - Fri, 13 Mar

WestJet flights from Ottawa to San Francisco

Our best WestJet deals on Ottawa to San Francisco flight tickets
WestJet
1 Mar
YOW6:00 a.m.Ottawa
9h 10m
1 stop
SFO12:10 p.m.San Francisco
13 Mar
SFO1:00 p.m.San Francisco
8h 40m
1 stop
YOW12:40 a.m.Ottawa
C$ 333
WestJet
24 Feb
YOW6:00 a.m.Ottawa
9h 10m
1 stop
SFO12:10 p.m.San Francisco
27 Feb
SFO1:00 p.m.San Francisco
32h 39m
2 stops
YOW12:39 a.m.Ottawa
C$ 369
WestJet
15 May
YOW3:45 p.m.Ottawa
8h 39m
1 stop
SFO9:24 p.m.San Francisco
29 May
SFO12:50 p.m.San Francisco
8h 50m
1 stop
YOW12:40 a.m.Ottawa
C$ 380

Porter Airlines flights from Ottawa to San Francisco

Our best Porter Airlines deals on Ottawa to San Francisco flight tickets
Porter Airlines
4 Mar
YOW6:45 a.m.Ottawa
9h 00m
1 stop
SFO12:45 p.m.San Francisco
10 Mar
SFO1:45 p.m.San Francisco
7h 56m
1 stop
YOW12:41 a.m.Ottawa
C$ 476
Porter Airlines
6 Mar
YOW6:45 a.m.Ottawa
9h 00m
1 stop
SFO12:45 p.m.San Francisco
10 Mar
SFO1:45 p.m.San Francisco
7h 56m
1 stop
YOW12:41 a.m.Ottawa
C$ 485
Porter Airlines
27 Feb
YOW6:40 a.m.Ottawa
9h 05m
1 stop
SFO12:45 p.m.San Francisco
2 Mar
SFO1:45 p.m.San Francisco
7h 56m
1 stop
YOW12:41 a.m.Ottawa
C$ 498

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 96,600 searches. Data last updated 10 January 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

Sun 1/3

6:00 a.m.-12:10 p.m.

1 stop9h 10m

San Francisco

Thu 12/3

1:00 p.m.-12:40 a.m.

1 stop8h 40m

C$ 333

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Tue 24/2

6:00 a.m.-12:10 p.m.

1 stop9h 10m

San Francisco

Fri 27/2

1:00 p.m.-12:39 a.m.

2 stops32h 39m

C$ 369

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Tue 24/2

6:00 a.m.-12:10 p.m.

1 stop9h 10m

San Francisco

Sun 1/3

10:15 a.m.-6:23 p.m.

2 stops29h 08m

C$ 375

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Fri 15/5

6:15 a.m.-5:14 p.m.

2 stops13h 59m

San Francisco

Fri 29/5

12:50 p.m.-12:40 a.m.

1 stop8h 50m

C$ 380

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Fri 15/5

6:15 a.m.-5:14 p.m.

2 stops13h 59m

San Francisco

Fri 29/5

7:30 a.m.-6:25 p.m.

1 stop7h 55m

C$ 382

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Tue 24/2

6:00 a.m.-12:10 p.m.

1 stop9h 10m

San Francisco

Sun 1/3

10:15 a.m.-2:44 p.m.

1 stop25h 29m

C$ 389

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Fri 15/5

6:15 a.m.-5:14 p.m.

2 stops13h 59m

San Francisco

Fri 29/5

7:30 a.m.-12:22 a.m.

2 stops13h 52m

C$ 392

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Wed 4/3

5:45 p.m.-12:10 p.m.

1 stop21h 25m

San Francisco

Fri 13/3

1:00 p.m.-12:40 a.m.

1 stop8h 40m

C$ 403

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Sun 1/3

6:00 a.m.-12:10 p.m.

1 stop9h 10m

San Francisco

Thu 12/3

10:15 a.m.-6:23 p.m.

2 stops29h 08m

C$ 410

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Mon 2/3

5:45 p.m.-12:10 p.m.

1 stop21h 25m

San Francisco

Fri 13/3

1:00 p.m.-12:40 a.m.

1 stop8h 40m

C$ 412

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?

The cheapest month to fly to San Francisco from Ottawa is in May. Flight prices, which tend to average around C$ 415, are often lower during this time because this is during the off-season. The month of April is another great option to travel to San Francisco, with average flight prices from Ottawa averaging around C$ 433.

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 C$ 499 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 C$ 425 on momondo.

Can stopping save me money on Ottawa to San Francisco flights?

You could potentially save up to 17% on your flight if you consider stops on a Ottawa to San Francisco flight.

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

As of January 2026, prices for Ottawa to San Francisco flights are approximately 2% 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 58m

Direct flights

None
The fastest flight from Ottawa to San Francisco takes 8h 58m
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?

    Ottawa and San Francisco are 3915.6 km apart from one another. In terms of flight time, this usually takes a little over 8h 58m.

  • 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 a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to 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
Porter AirlinesPriceFrom C$ 329Free CancellationRating
8.0
406 reviews
Search Porter Airlines flights
WestJetPriceFrom C$ 332Free CancellationRating
7.2
3,235 reviews
Search WestJet flights
United AirlinesPriceFrom C$ 335Free CancellationRating
7.4
9,145 reviews
Search United Airlines flights
Air CanadaPriceFrom C$ 338Free CancellationRating
7.1
10,605 reviews
Search Air Canada flights

Travelling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
San Mateo
Belmont
Los Altos
San Bruno
Santa Cruz
Newark
Milpitas
Carmel-by-the-Sea
Turlock
South San Francisco
Palo Alto
Burlingame
Santa Clara
Cupertino
Mill Valley
Morgan Hill
Pacifica
Los Banos
Mountain View
Woodland

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to San Francisco from Ottawa.

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

Yes. momondo allows you to filter the results for Ottawa to San Francisco flights to just show those with flexible booking policies.

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

Once all potential Ottawa to San Francisco flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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 simply researching potential flights to San Francisco, momondo offers a useful price alert feature which will track prices for flights to San Francisco from Ottawa and alert you 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.
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