What is the cheapest airline that flies from Ottawa to San Francisco?

Porter Airlines, American Airlines, and WestJet are the most popular carriers operating from Ottawa to San Francisco

Which layover airport has the shortest connection time from Ottawa to San Francisco?

Chicago (ORD) has the shortest average layover time for this route: 1h 08m.

Which airlines fly to San Francisco?

Air Canada, Porter Airlines and United Airlines are the top three most popular airlines that fly to San Francisco from Ottawa according to our data. Air Canada is the first choice among our users, with 46% of people opting to fly with this airline when travelling to San Francisco. Keep in mind that there are 6 different airlines that fly to San Francisco on a routine basis, so you have a few additional options to choose from.

Which airport is the most popular layover for flights between Ottawa and San Francisco?

Toronto (YYZ) was the most common stop: 65% of momondo users choosing one-stop flights on this route connected there.

Which layover airport has the shortest travel time from Ottawa to San Francisco?

Flights connecting via Chicago (ORD) have the shortest average one-way travel time: 7h 50m.

Which layover airport offers the lowest fares from Ottawa to San Francisco?

Flights via Toronto (YYZ) offer the lowest average round-trip price of C$ 413.

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?

There are 4 operators available for flights from Ottawa Airport to San Francisco Airport as of November 2025.

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.

C$ 270 Cheap Flights from Ottawa to San Francisco in 2025/26

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Cheap round-trip flights

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

9h 10m1 stop

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

8h 40m1 stop

C$ 464WestJet

Find Deal

Tue, 17 Feb - Thu, 5 Mar

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

9h 10m1 stop

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

8h 40m1 stop

C$ 467WestJet

Find Deal

Thu, 19 Feb - Thu, 5 Mar

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

21h 25m1 stop

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

8h 40m1 stop

C$ 471WestJet

Find Deal

Mon, 16 Feb - Thu, 5 Mar

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

9h 10m1 stop

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

8h 40m1 stop

C$ 474WestJet

Find Deal

Tue, 17 Feb - Fri, 6 Mar

6:45 p.m. - 9:30 a.m.YOW-SFO

17h 45m1 stop

6:00 a.m. - 5:13 p.m.SFO-YOW

32h 13m2 stops

C$ 499Multiple Airlines

Find Deal

Fri, 5 Dec - Wed, 10 Dec

9:30 a.m. - 9:46 a.m.YOW-SFO

27h 16m2 stops

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

8h 40m1 stop

C$ 511Multiple Airlines

Find Deal

Wed, 18 Feb - Thu, 5 Mar

6:45 a.m. - 12:40 p.m.YOW-SFO

8h 55m1 stop

1:40 p.m. - 12:41 a.m.SFO-YOW

8h 01m1 stop

C$ 525Porter Airlines

Find Deal

Tue, 24 Mar - Mon, 30 Mar

6:45 a.m. - 12:40 p.m.YOW-SFO

8h 55m1 stop

1:40 p.m. - 12:41 a.m.SFO-YOW

8h 01m1 stop

C$ 567Porter Airlines

Find Deal

Wed, 18 Feb - Sun, 8 Mar

5:40 a.m. - 6:38 p.m.YOW-SFO

15h 58m2 stops

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

8h 40m1 stop

C$ 591Delta

Find Deal

Tue, 17 Feb - Fri, 6 Mar

5:40 a.m. - 6:38 p.m.YOW-SFO

15h 58m2 stops

6:00 a.m. - 12:39 a.m.SFO-YOW

15h 39m2 stops

C$ 650Delta

Find Deal

Tue, 17 Feb - Mon, 2 Mar

United Airlines flights from Ottawa to San Francisco

Our best United Airlines deals on Ottawa to San Francisco flight tickets

United Airlines

17 Nov

YOW11:10 a.m.Ottawa

14h 45m

2 stops

SFO10:55 p.m.San Francisco

27 Nov

SFO5:45 p.m.San Francisco

13h 41m

2 stops

YOW10:26 a.m.Ottawa

C$ 1,004

Find similar

United Airlines

17 Nov

YOW5:14 p.m.Ottawa

8h 23m

1 stop

SFO10:37 p.m.San Francisco

24 Nov

SFO7:00 a.m.San Francisco

11h 18m

1 stop

YOW9:18 p.m.Ottawa

C$ 1,082

Find similar

United Airlines

4 Nov

YOW5:14 p.m.Ottawa

8h 23m

1 stop

SFO10:37 p.m.San Francisco

4 Nov

SFO12:43 a.m.San Francisco

15h 12m

2 stops

YOW6:55 p.m.Ottawa

C$ 1,442

Find similar

Air Canada flights from Ottawa to San Francisco

Our best Air Canada deals on Ottawa to San Francisco flight tickets

Air Canada

17 Nov

YOW2:50 p.m.Ottawa

11h 05m

2 stops

SFO10:55 p.m.San Francisco

28 Nov

SFO6:53 p.m.San Francisco

11h 30m

2 stops

YOW9:23 a.m.Ottawa

C$ 1,046

Find similar

Air Canada

9 Nov

YOW7:45 a.m.Ottawa

10h 50m

1 stop

SFO3:35 p.m.San Francisco

15 Nov

SFO5:00 a.m.San Francisco

9h 12m

2 stops

YOW5:12 p.m.Ottawa

C$ 1,180

Find similar

Air Canada

9 Nov

YOW7:45 a.m.Ottawa

10h 50m

1 stop

SFO3:35 p.m.San Francisco

15 Nov

SFO5:00 a.m.San Francisco

9h 12m

2 stops

YOW5:12 p.m.Ottawa

C$ 1,231

Find similar

Fly from

Fly to

Route

Depart

Return

Price

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Tue 17/2

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

1 stop9h 10m

San Francisco

Thu 5/3

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

1 stop8h 40m

C$ 464

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Thu 19/2

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

1 stop9h 10m

San Francisco

Thu 5/3

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

1 stop8h 40m

C$ 467

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Mon 16/2

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

1 stop21h 25m

San Francisco

Thu 5/3

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

1 stop8h 40m

C$ 471

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Tue 17/2

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

1 stop9h 10m

San Francisco

Fri 6/3

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

1 stop8h 40m

C$ 474

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Fri 5/12

6:45 p.m.-9:30 a.m.

1 stop17h 45m

San Francisco

Wed 10/12

6:00 a.m.-5:13 p.m.

2 stops32h 13m

C$ 499

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Wed 18/2

9:30 a.m.-9:46 a.m.

2 stops27h 16m

San Francisco

Thu 5/3

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

1 stop8h 40m

C$ 511

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Tue 24/3

6:45 a.m.-12:40 p.m.

1 stop8h 55m

San Francisco

Mon 30/3

1:40 p.m.-12:41 a.m.

1 stop8h 01m

C$ 525

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Wed 18/2

6:45 a.m.-12:40 p.m.

1 stop8h 55m

San Francisco

Sun 8/3

1:40 p.m.-12:41 a.m.

1 stop8h 01m

C$ 567

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Tue 17/2

5:40 a.m.-6:38 p.m.

2 stops15h 58m

San Francisco

Fri 6/3

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

1 stop8h 40m

C$ 591

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Tue 17/2

5:40 a.m.-6:38 p.m.

2 stops15h 58m

San Francisco

Mon 2/3

6:00 a.m.-12:39 a.m.

2 stops15h 39m

C$ 650

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Layovers

What is the cheapest month to fly to San Francisco?

The cheapest month to fly to San Francisco from Ottawa is in January. Flight prices, which tend to average around C$ 413, are often lower during this time because this is during the off-season. The month of May is another great option to travel to San Francisco, with average flight prices from Ottawa averaging around C$ 431.

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. Travellers who choose to depart for San Francisco on a Thursday will often find tickets for as low as C$ 584. On the other hand, Monday is the most expensive day to depart from Ottawa because it is more convenient for both business and leisure travellers. As a result, prices tend to be around C$ 778.

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

Flying to San Francisco from Ottawa at noon is the least expensive time of day to depart. momondo users have found prices as low as C$ 632 when looking at flights departing at noon. In contrast, the most expensive time of day to depart to San Francisco is in the evening when prices are around C$ 694.

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$ 510 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$ 433 on momondo.

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

You could potentially save up to 35% 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 November 2025, prices for Ottawa to San Francisco flights are approximately 15% 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

Direct flights	None

There are no direct flights from Ottawa to San Francisco. There are no popular flight routes from Ottawa to San Francisco.

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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 55m.
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?
There are 4 operators available for flights from Ottawa Airport to San Francisco Airport as of November 2025.
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?
Based on momondo bookings for flights between Ottawa and San Francisco, the leading airline is Air Canada, making up 36% of the total bookings. Other popular airlines include Porter Airlines with 29%, WestJet with 25%, and United Airlines with 10%.

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 Airlines	PriceFrom C$ 338	Free Cancellation	Rating 7.4 8,997 reviews	Search United Airlines flights
Porter Airlines	PriceFrom C$ 341	Free Cancellation	Rating 8.0 384 reviews	Search Porter Airlines flights
Air Canada	PriceFrom C$ 342	Free Cancellation	Rating 7.1 10,394 reviews	Search Air Canada flights
WestJet	PriceFrom C$ 346	Free Cancellation	Rating 7.2 3,153 reviews	Search WestJet flights

San Mateo

Belmont

Los Altos

San Bruno

Santa Cruz

Newark

Fremont

Carmel-by-the-Sea

Turlock

South San Francisco

Palo Alto

Sunnyvale

Santa Clara

Cupertino

Mill Valley

Morgan Hill

Los Banos

Mountain View

Pacifica

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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Cheap flights from Ottawa to San Francisco from C$ 270

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 16/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

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Find the cheapest flights from Ottawa to San Francisco

Cheap round-trip flights

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United Airlines flights from Ottawa to San Francisco

Our best United Airlines deals on Ottawa to San Francisco flight tickets

Air Canada flights from Ottawa to San Francisco

Our best Air Canada deals on Ottawa to San Francisco flight tickets

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Use the filters below to find and compare flights from Ottawa to San Francisco that are best for you.

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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?

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

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

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

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

You could potentially save up to 35% 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 November 2025, prices for Ottawa to San Francisco flights are approximately 15% cheaper when compared to flights at the same time last year.

What is the cheapest airline that flies from Ottawa to San Francisco?

Porter Airlines, American Airlines, and WestJet are the most popular carriers operating from Ottawa to San Francisco

Which airlines fly to San Francisco?

Which airport is the most popular layover for flights between Ottawa and San Francisco?

Toronto (YYZ) was the most common stop: 65% of momondo users choosing one-stop flights on this route connected there.

Which layover airport offers the lowest fares from Ottawa to San Francisco?

Flights via Toronto (YYZ) offer the lowest average round-trip price of C$ 413.

Which layover airport has the shortest travel time from Ottawa to San Francisco?

Flights connecting via Chicago (ORD) have the shortest average one-way travel time: 7h 50m.

Which layover airport has the shortest connection time from Ottawa to San Francisco?

Chicago (ORD) has the shortest average layover time for this route: 1h 08m.

When to book flights from Ottawa to San Francisco

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

Direct flights

How far is Ottawa to San Francisco by plane?

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

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?

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

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

Travelling to a place near San Francisco?

Why use momondo?

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

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

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

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

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing California