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Cheap flights from Ottawa to San Francisco Bay Area from C$ 203

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 29/9. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — SFO
19 Oct — 26 Oct1
1 adult
1 adult, Economy

Cheap flight deals from Ottawa to San Francisco Bay Area

Keep the following information in mind while searching for Ottawa to San Francisco Bay Area flight deals. Data was last updated 19 September 2025.

Round-trip from

C$ 401

One-way from

C$ 203

Popular in

December

Cheapest in

January

Average price

C$ 518
WestJet
  • WestJet
  • 14/10-21/10
  • 2 total stops
  • 28h 29m total
  • Ottawa to San Francisco Bay Area
Search Deals
29/9
  • 29/9
  • 2 total stops
  • 32h 46m total
  • Ottawa to San Francisco Bay Area
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (C$ 78 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find flight deals from Ottawa to San Francisco Bay Area

Cheapest flights from Ottawa to San Francisco Bay Area
Explore the most affordable flight options available from Ottawa to San Francisco Bay Area. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 September 2025.

Tue 14/107:15 p.m.YOW - SFO
1 stop19h 39mWestJet
Tue 21/1012:50 p.m.SFO - YOW
1 stop8h 50mWestJet
Deal found 16/9C$ 401
Tue 30/97:15 p.m.YOW - SFO
1 stop19h 39mWestJet
Wed 22/1012:50 p.m.SFO - YOW
1 stop8h 50mWestJet
Deal found 16/9C$ 404
Wed 22/106:05 a.m.YOW - SFO
1 stop10h 45mUnited Airlines
Wed 29/1012:43 a.m.SFO - YOW
2 stops10h 47mUnited Airlines
Deal found 16/9C$ 414
Wed 22/105:15 p.m.YOW - SFO
2 stops31h 09mWestJet
Thu 30/101:00 p.m.SFO - YOW
2 stops32h 42mWestJet
Deal found 16/9C$ 421
Thu 16/105:15 p.m.YOW - SFO
2 stops23h 42mWestJet
Thu 23/1012:50 p.m.SFO - YOW
1 stop8h 50mWestJet
Deal found 18/9C$ 429
Tue 14/105:25 p.m.YOW - SFO
1 stop18h 29mUnited Airlines
Tue 21/106:40 p.m.SFO - YOW
2 stops11h 31mUnited Airlines
Deal found 16/9C$ 430
Sun 12/107:15 p.m.YOW - SFO
2 stops53h 07mMultiple Airlines
Wed 22/1010:15 a.m.SFO - YOW
1 stop25h 29mMultiple Airlines
Deal found 17/9C$ 451
Mon 3/116:55 p.m.YOW - SFO
1 stop20h 17mMultiple Airlines
Sun 30/1110:15 a.m.SFO - YOW
2 stops48h 46mMultiple Airlines
Deal found 16/9C$ 452
Tue 23/126:15 a.m.YOW - SJC
2 stops18h 01mUnited Airlines
Wed 31/129:00 a.m.SJC - YOW
2 stops26h 27mUnited Airlines
Deal found 17/9C$ 925
Sat 20/93:45 p.m.YOW - SJC
2 stops26h 00mWestJet
Sun 2/113:30 p.m.SJC - YOW
2 stops30h 10mWestJet
Deal found 19/9C$ 1,143
Thu 18/97:15 p.m.YOW - SJC
2 stops46h 30mWestJet
Tue 9/123:43 p.m.SJC - YOW
2 stops29h 57mWestJet
Deal found 18/9C$ 1,226
Sat 20/96:33 a.m.YOW - SJC
2 stops17h 45mUnited Airlines
Sun 2/115:30 a.m.SJC - YOW
1 stop7h 42mUnited Airlines
Deal found 19/9C$ 1,300

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ottawa to San Francisco Bay Area 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, Cheapflights users made 629,999 searches. Data last updated 19 September 2025.
Use the filters below to find and compare flights from Ottawa to San Francisco Bay Area that are best for you.

Fly from

Ottawa

Fly to

San Francisco Bay Area

Route

Depart

Return

Price

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Sat 17/1

6:20 a.m.-8:10 p.m.

1 stop16h 50m

San Francisco

Sat 24/1

6:45 a.m.-5:12 p.m.

1 stop7h 27m

C$ 472

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Wed 4/3

5:00 a.m.-10:54 a.m.

1 stop8h 54m

San Francisco

Thu 5/3

11:45 p.m.-1:26 p.m.

1 stop10h 41m

C$ 472

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Sat 18/10

7:29 p.m.-12:55 a.m.

1 stop8h 26m

San Francisco

Sat 25/10

6:35 a.m.-9:35 p.m.

2 stops12h 00m

C$ 524

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Thu 16/10

7:29 p.m.-9:19 a.m.

1 stop16h 50m

San Francisco

Sun 19/10

9:20 p.m.-9:58 a.m.

1 stop9h 38m

C$ 525

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Sun 12/10

9:00 a.m.-9:30 a.m.

1 stop27h 30m

San Francisco

Wed 22/10

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

1 stop25h 29m

C$ 531

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Sat 11/10

3:55 p.m.-11:59 p.m.

2 stops11h 04m

San Francisco

Fri 17/10

11:56 p.m.-2:13 p.m.

1 stop11h 17m

C$ 534

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Thu 23/10

6:00 a.m.-11:11 a.m.

1 stop8h 11m

San Francisco

Wed 10/12

8:25 a.m.-7:22 p.m.

1 stop7h 57m

C$ 538

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Thu 23/10

11:55 a.m.-12:55 a.m.

2 stops16h 00m

San Francisco

Wed 10/12

6:00 a.m.-9:18 p.m.

2 stops12h 18m

C$ 564

OttawaSan Jose

YOW - SJC

YOWSJC

Ottawa

Sat 24/1

6:45 a.m.-6:04 p.m.

2 stops14h 19m

San Jose

Sun 1/2

6:15 a.m.-12:41 a.m.

2 stops15h 26m

C$ 724

OttawaSan Jose

YOW - SJC

YOWSJC

Ottawa

Tue 24/2

6:00 a.m.-5:52 p.m.

2 stops14h 52m

San Jose

Wed 25/2

8:05 p.m.-12:40 a.m.

2 stops25h 35m

C$ 735

Flights are sorted by cheapest round-trip flights first.

Deals found on 16/9

Showing 1-10 of 29 results
1
2
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Best time to book a flight from Ottawa to San Francisco Bay Area

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

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

Currently, January is the cheapest month in which you can book a flight from Ottawa to San Francisco Bay Area (average of C$ 276). Flying from Ottawa to San Francisco Bay Area in December is currently the most expensive (average of C$ 368). 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.

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

Find hourly flight availability from Ottawa to San Francisco Bay Area. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 19 September 2025.

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

Reviews of airlines servicing San Francisco Bay Area

Get insights into the airlines that provide service to San Francisco Bay Area. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Francisco Bay Area. Reviews last updated 19 September 2025.
Get a feel of what it's like to fly with Porter Airlines,United Airlines, andWestJet from Ottawa to San Francisco Bay Area by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
7.9
Good
365 reviews
Check prices

Boarding

8.2

Crew

8.6

Overall

7.9

Comfort

7.9

Entertainment

7.0

Food

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Porter Airlines
7.9
Good
365 reviews
Porter Airlines
7.9
Good
365 reviews
Check prices

Boarding

8.2

Crew

8.6

Overall

7.9

Comfort

7.9

Entertainment

7.0

Food

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
United Airlines
7.4
Good
8,926 reviews
Porter Airlines
7.9
Good
365 reviews
Check prices

Boarding

8.2

Crew

8.6

Overall

7.9

Comfort

7.9

Entertainment

7.0

Food

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
WestJet
7.2
Good
3,095 reviews
Porter Airlines
7.9
Good
365 reviews
Check prices

Boarding

8.2

Crew

8.6

Overall

7.9

Comfort

7.9

Entertainment

7.0

Food

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Air Canada
7.1
Good
10,000 reviews
Porter Airlines
7.9
Good
365 reviews
Check prices

Boarding

8.2

Crew

8.6

Overall

7.9

Comfort

7.9

Entertainment

7.0

Food

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.

Related info for your journey

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

  • What airport do you fly from for flights from Ottawa to San Francisco Bay Area?

    If you book a flight to San Francisco Bay Area from Ottawa, you will be flying from Ottawa, which is the city’s only airport. Ottawa (YOW) is located 10.6 km from the centre of Ottawa.

  • How long is the flight from Ottawa to San Francisco Bay Area?

    Airlines like United Airlines and Delta fly from Ottawa to San Francisco Bay Area in about 14h 52m. The time it takes to get you to your destination can typically vary by up to 1h 58m. The distance from Ottawa to San Francisco Bay Area is about 3903 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the most popular routes from Ottawa to San Francisco Bay Area?

    While some choose either Ottawa - San Jose or Ottawa - Oakland, Ottawa - San Francisco is the most popular route from Ottawa to San Francisco Bay Area.

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

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

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

    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 Bay Area.

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

    Yes. Cheapflights offers flight deals from Ottawa to San Francisco Bay Area 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 Bay Area?

    Currently, January is the cheapest month in which you can book a flight from Ottawa to San Francisco Bay Area (average of C$ 276). Flying from Ottawa to San Francisco Bay Area in December is currently the most expensive (average of C$ 368). 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

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Top 4 airlines flying from Ottawa to San Francisco Bay Area

Discover the top 4 airlines that operate flights from Ottawa to San Francisco Bay Area. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 19 September 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 333AverageC$ 793FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 338AverageC$ 583FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Porter AirlinesCheapestC$ 338AverageC$ 437FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
WestJetCheapestC$ 341AverageC$ 436FlexibilityNo cancel feeOn-time60%
Search WestJet flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

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

Deals for Ottawa to San Francisco Bay Area flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

Millions of users choose and trust Cheapflights to book the best flight deals from Ottawa to San Francisco Bay Area 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 Bay Area with no change fees?

Certainly. Search results for flights to San Francisco Bay Area from Ottawa shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes, Cheapflights offers price alerts on Ottawa to San Francisco Bay Area flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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