Which airport typically offers the quickest layover for flights from Ottawa to San Francisco?

Flights via Montreal (YUL) offer the fastest connection on this route, with an average layover time of 1h 25m.

What’s the fastest layover option from Ottawa to San Francisco?

Flights via Montreal (YUL) have the shortest average one-way travel time for 1-stop routes: 8h 13m.

What’s the cheapest layover airport for flights from Ottawa to San Francisco?

Calgary (YYC) is the most affordable 1-stop option, with an average round-trip price of C$ 470.

What’s the top layover airport for flights from Ottawa to San Francisco?

Toronto (YYZ) – chosen by Cheapflights users on 47% of one-stop itineraries from Ottawa to San Francisco on Cheapflights.

How long is the flight from Ottawa to San Francisco?

For as low as C$ 611, WestJet can have you in San Francisco from Ottawa in 8h 20m. The distance from Ottawa to San Francisco is about 3925 km. Both multi-stop and direct flights can be found to your destination and back.

What are the cheapest airlines flying from Ottawa to San Francisco round-trip?

WestJet, at C$ 353, was found to be the cheapest airline from Ottawa to San Francisco.Alternate airlines to your destination round-trip include Air Canada and Porter Airlines. WestJet is priced at 42% lower than the current average price of a flight leaving 3 months from now.

What are the cheapest airlines to fly from Ottawa to San Francisco one-way?

C$ 219 is the cheapest one-way deal found within the past few days, from WestJet. You may also be able to find cheap deals on Porter Airlines and United Airlines, with prices starting from C$ 256 and C$ 341, respectively.

In terms of precipitation, rainfall in San Francisco ranges from 0.0 - 112.0 mm per month. January is typically the wettest month, when rainfall can reach 112.0 mm. July is typically the driest time to visit San Francisco when rainfall is around 0.0 mm.

If weather is an important factor for your trip to San Francisco, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 11.0 C).

What are the most popular airlines that fly from Ottawa to San Francisco?

Before booking your flight from Ottawa to San Francisco check out the most popular airlines for this route: Porter Airlines, WestJet or Air Canada.

What is the cheapest time of day to fly from YOW to SFO?

When flying from Ottawa to San Francisco, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Can I find deals for flights from Ottawa to San Francisco that include hotel bookings?

Yes. In addition to deals on Ottawa to San Francisco flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Ottawa to San Francisco?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ottawa to San Francisco.

Can I find deals for business class flights from Ottawa to San Francisco?

Yes. Cheapflights offers flight deals from Ottawa to San Francisco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

C$ 289+ Cheap Flights from Ottawa to San Francisco

Q: How much does it cost to fly round-trip from Ottawa to San Francisco?

Airfare is below average for this route at the moment. Ottawa to San Francisco flights typically cost between C$ 807 and C$ 489 in July. The cheapest round-trip price found within the last 5 days was C$ 447 on WestJet (29 Jul-5 Aug).

Cheap flight deals from Ottawa to San Francisco

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from Ottawa to San Francisco
Explore the most affordable flight options available from Ottawa to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 June 2026.

Wed 29/76:00 a.m.

YOW

SFO

1 stop9h 00m

WestJet

Wed 5/86:00 a.m.

SFO

YOW

1 stop8h 15m

WestJet

Deal found 8/6C$ 447

Thu 24/912:25 p.m.

YOW

SFO

2 stops12h 30m

WestJet

Mon 28/96:00 a.m.

SFO

YOW

1 stop10h 20m

WestJet

Deal found 8/6C$ 484

Thu 24/97:00 a.m.

YOW

SFO

1 stop8h 20m

Porter Airlines

Mon 28/91:20 p.m.

SFO

YOW

1 stop8h 05m

Porter Airlines

Deal found 8/6C$ 496

Thu 23/712:25 p.m.

YOW

SFO

2 stops12h 30m

WestJet

Thu 30/71:00 p.m.

SFO

YOW

1 stop8h 40m

WestJet

Deal found 10/6C$ 499

Mon 17/812:25 p.m.

YOW

SFO

2 stops12h 30m

WestJet

Sun 23/86:05 p.m.

SFO

YOW

1 stop8h 30m

WestJet

Deal found 9/6C$ 503

Wed 22/76:00 a.m.

YOW

SFO

1 stop9h 00m

WestJet

Thu 30/71:00 p.m.

SFO

YOW

1 stop8h 40m

WestJet

Deal found 11/6C$ 505

Sat 5/96:00 a.m.

YOW

SFO

1 stop9h 00m

WestJet

Sat 12/96:00 a.m.

SFO

YOW

1 stop8h 15m

WestJet

Deal found 13/6C$ 526

Fri 18/912:25 p.m.

YOW

SFO

2 stops12h 30m

WestJet

Mon 21/96:00 a.m.

SFO

YOW

1 stop8h 15m

WestJet

Deal found 11/6C$ 533

Find flight deals from Ottawa to San Francisco

Round-trip from	C$ 447
One-way from	C$ 289
Popular in	May
Cheapest in	September
Average price	C$ 594

WestJet
29/7-5/8
2 total stops
17h 15m total
Ottawa to San Francisco

Search Deals

WestJet
28/7
2 total stops
12h 30m total
Ottawa to San Francisco

Search Deals

Highest demand for flights based on searches. 5% potential increase in price (C$ 49 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (C$ 22 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in June 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Thu 24/9

1:20 p.m.-9:55 p.m.

1 stop11h 35m

San Francisco

Mon 28/9

6:00 a.m.-7:20 p.m.

1 stop10h 20m

C$ 569

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Fri 18/9

12:25 p.m.-9:55 p.m.

2 stops12h 30m

San Francisco

Tue 22/9

6:00 a.m.-7:20 p.m.

1 stop10h 20m

C$ 590

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Fri 23/10

6:15 p.m.-12:00 p.m.

2 stops20h 45m

San Francisco

Thu 29/10

1:00 p.m.-12:45 a.m.

1 stop8h 45m

C$ 591

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Sun 25/10

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

1 stop9h 10m

San Francisco

Thu 29/10

1:00 p.m.-12:45 a.m.

1 stop8h 45m

C$ 600

Quickest round-trip

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Thu 24/9

7:00 a.m.-12:20 p.m.

1 stop8h 20m

San Francisco

Mon 28/9

1:20 p.m.-12:25 a.m.

1 stop8h 05m

C$ 611

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Fri 18/9

6:55 a.m.-6:09 p.m.

2 stops14h 14m

San Francisco

Tue 22/9

6:00 a.m.-12:20 a.m.

2 stops15h 20m

C$ 797

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Tue 30/6

6:55 a.m.-6:13 p.m.

2 stops14h 18m

San Francisco

Mon 13/7

6:05 p.m.-5:35 a.m.

1 stop8h 30m

C$ 809

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Thu 23/7

1:20 p.m.-9:55 p.m.

1 stop11h 35m

San Francisco

Thu 30/7

6:05 p.m.-12:40 a.m.

1 stop27h 35m

C$ 809

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Thu 2/7

6:25 a.m.-5:19 p.m.

1 stop13h 54m

San Francisco

Thu 2/7

9:00 p.m.-5:07 p.m.

2 stops17h 07m

C$ 867

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Thu 2/7

2:52 p.m.-1:15 a.m.

1 stop13h 23m

San Francisco

Fri 3/7

9:30 p.m.-2:17 p.m.

1 stop13h 47m

C$ 867

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/6

Showing 1-10 of 21 resultsSorted by cheapest first

Best time to book a flight from Ottawa to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Ottawa with our price prediction graph.

YOW-SFO

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ottawa to San Francisco

Prices

How far ahead should I book a flight from Ottawa to San Francisco?

Booking 71 days in advance of your planned departure date is, on average, the best time to get cheap flights from Ottawa to San Francisco. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Ottawa to San Francisco?

Currently, September is the cheapest month in which you can book a flight from Ottawa to San Francisco (average of C$ 484). Flying from Ottawa to San Francisco in May is currently the most expensive (average of C$ 777). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from Ottawa to San Francisco?

Reviews of airlines servicing San Francisco

Get a feel of what it's like to fly with Porter Airlines,United Airlines, andWestJet from Ottawa to San Francisco by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Porter Airlines

8.0

Very good

438 reviews

Check prices

Reviews

1 / 20

6.0

Good

Justin,May 2026

YYZ - MCO

Staff very nice. Seats were uncomfortable. Complimentary snacks leave much to be desired.

Porter Airlines

8.0

Very good

438 reviews

Porter Airlines

8.0

Very good

438 reviews

Check prices

Reviews

1 / 20

6.0

Good

Justin,May 2026

YYZ - MCO

Staff very nice. Seats were uncomfortable. Complimentary snacks leave much to be desired.

United Airlines

7.4

Good

9,813 reviews

Porter Airlines

8.0

Very good

438 reviews

Check prices

Reviews

1 / 20

6.0

Good

Justin,May 2026

YYZ - MCO

Staff very nice. Seats were uncomfortable. Complimentary snacks leave much to be desired.

WestJet

7.2

Good

3,357 reviews

Porter Airlines

8.0

Very good

438 reviews

Check prices

Reviews

1 / 20

6.0

Good

Justin,May 2026

YYZ - MCO

Staff very nice. Seats were uncomfortable. Complimentary snacks leave much to be desired.

Air Canada

7.1

Good

11,172 reviews

Porter Airlines

8.0

Very good

438 reviews

Check prices

Reviews

1 / 20

6.0

Good

Justin,May 2026

YYZ - MCO

Staff very nice. Seats were uncomfortable. Complimentary snacks leave much to be desired.

Related info for your journey

How long is the flight from Ottawa to San Francisco?
For as low as C$ 611, WestJet can have you in San Francisco from Ottawa in 8h 20m. The distance from Ottawa to San Francisco is about 3925 km. Both multi-stop and direct flights can be found to your destination and back.
What are the cheapest airlines flying from Ottawa to San Francisco round-trip?
WestJet, at C$ 353, was found to be the cheapest airline from Ottawa to San Francisco.Alternate airlines to your destination round-trip include Air Canada and Porter Airlines. WestJet is priced at 42% lower than the current average price of a flight leaving 3 months from now.
What are the cheapest airlines to fly from Ottawa to San Francisco one-way?
C$ 219 is the cheapest one-way deal found within the past few days, from WestJet. You may also be able to find cheap deals on Porter Airlines and United Airlines, with prices starting from C$ 256 and C$ 341, respectively.
Can I find deals for flights from Ottawa to San Francisco that include hotel bookings?
Yes. In addition to deals on Ottawa to San Francisco flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Ottawa to San Francisco?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ottawa to San Francisco.
Can I find deals for business class flights from Ottawa to San Francisco?
Yes. Cheapflights offers flight deals from Ottawa to San Francisco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Ottawa to San Francisco?
Currently, September is the cheapest month in which you can book a flight from Ottawa to San Francisco (average of C$ 484). Flying from Ottawa to San Francisco in May is currently the most expensive (average of C$ 777). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Burlingame

San Bruno

Roseville

Livermore

South San Francisco

Novato

Vallejo

Browse thousands of different options on Cheapflights for your next trip

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Fly from Ottawa to San Francisco on these airlines

WestJet flights from Ottawa to San Francisco

Air Canada flights from Ottawa to San Francisco

United Airlines flights from Ottawa to San Francisco

Top 4 airlines flying from Ottawa to San Francisco

Airline	Cheapest	Average	Flexibility	On-time
WestJet	CheapestC$ 353	AverageC$ 493	FlexibilityNo cancel fee	On-time60%	Search WestJet flights
Air Canada	CheapestC$ 395	AverageC$ 700	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
Porter Airlines	CheapestC$ 397	AverageC$ 567	FlexibilityNo cancel fee	On-time52%	Search Porter Airlines flights
United Airlines	CheapestC$ 467	AverageC$ 623	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights

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How does Cheapflights help users find flights from Ottawa to San Francisco?

When you search for this flight from Ottawa to San Francisco, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Ottawa to San Francisco?

Millions of users choose and trust Cheapflights to book the best flight deals from Ottawa to San Francisco for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Ottawa to San Francisco with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Ottawa to San Francisco flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Ottawa to San Francisco become cheaper?

Of course! You can now track prices for flights from Ottawa to San Francisco and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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Cheap flights from Ottawa to San Francisco from C$ 289

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 28/7. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Ottawa to San Francisco

Cheapest flights from Ottawa to San FranciscoExplore the most affordable flight options available from Ottawa to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 June 2026.

Explore the most affordable flight options available from Ottawa to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 June 2026.

Best flights from Ottawa to San FranciscoDiscover carefully curated flight deals from Ottawa to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 13 June 2026.

Discover carefully curated flight deals from Ottawa to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 13 June 2026.

Last-minute flights from Ottawa to San FranciscoDiscover last-minute flight deals from Ottawa to San Francisco. Data last updated 13 June 2026 and is based on user searches.

Discover last-minute flight deals from Ottawa to San Francisco. Data last updated 13 June 2026 and is based on user searches.

One-way flights from Ottawa to San FranciscoSearch for one-way flight options from Ottawa to San Francisco. Find affordable one-way fares based on user searches. Data last updated 13 June 2026.

Search for one-way flight options from Ottawa to San Francisco. Find affordable one-way fares based on user searches. Data last updated 13 June 2026.

Find flight deals from Ottawa to San Francisco

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

Best time to book a flight from Ottawa to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Ottawa with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Ottawa to San Francisco

How far ahead should I book a flight from Ottawa to San Francisco?

What is the cheapest month to book a flight from Ottawa to San Francisco?

How much does it cost to fly round-trip from Ottawa to San Francisco?

What’s the top layover airport for flights from Ottawa to San Francisco?

What’s the cheapest layover airport for flights from Ottawa to San Francisco?

What’s the fastest layover option from Ottawa to San Francisco?

Which airport typically offers the quickest layover for flights from Ottawa to San Francisco?

Reviews of airlines servicing San Francisco

Get a feel of what it's like to fly with Porter Airlines,United Airlines, andWestJet from Ottawa to San Francisco by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Ottawa to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

How long is the flight from Ottawa to San Francisco?

What are the cheapest airlines flying from Ottawa to San Francisco round-trip?

What are the cheapest airlines to fly from Ottawa to San Francisco one-way?

Can I find deals for flights from Ottawa to San Francisco that include hotel bookings?

How can I find direct flights from Ottawa to San Francisco?

Can I find deals for business class flights from Ottawa to San Francisco?

What is the cheapest month to book a flight from Ottawa to San Francisco?

Travelling to a place near San Francisco?

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Fly from Ottawa to San Francisco on these airlines

Choose from the following airlines for your flight from Ottawa to San Francisco. Flights are based on user searches made on Cheapflights and were last updated on 13 June 2026.

Alternative routes for Ottawa to San Francisco

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to San Francisco by adding a car rental and/or hotel reservation to your travel itinerary.

Direct flights to California

Book a non-stop flight to one of these other cities located in California.

Search flights from Ottawa to San Francisco by cabin class

Find flights from Ottawa to San Francisco, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Ottawa and San Francisco flights

Browse other Ottawa and San Francisco flight options. Last updated on 13 June 2026.

Other flights from Ottawa

Browse through other flights departing from Ottawa. Flights are based on user searches made on Cheapflights and were last updated on 13 June 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Other flights to San Francisco

Explore flights to San Francisco departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 13 June 2026.

Top 4 airlines flying from Ottawa to San Francisco

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How does Cheapflights help users find flights from Ottawa to San Francisco?

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Can Cheapflights notify me if prices for flights from Ottawa to San Francisco become cheaper?

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Cheapest flights from Ottawa to San Francisco
Explore the most affordable flight options available from Ottawa to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 June 2026.

Best flights from Ottawa to San Francisco
Discover carefully curated flight deals from Ottawa to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 13 June 2026.

Last-minute flights from Ottawa to San Francisco
Discover last-minute flight deals from Ottawa to San Francisco. Data last updated 13 June 2026 and is based on user searches.

One-way flights from Ottawa to San Francisco
Search for one-way flight options from Ottawa to San Francisco. Find affordable one-way fares based on user searches. Data last updated 13 June 2026.