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Cheap flights from San Francisco to Ottawa from C$ 197

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 20/10. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — YOW
23 Aug — 30 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from San Francisco to Ottawa

Enter your travel dates to find the best prices.

Cheapest flights from San Francisco to Ottawa
Explore the most affordable flight options available from San Francisco to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 24 July 2026.

Mon 12/106:00 a.m.
SFO
-
YOW
1 stop10h 20m
WestJet
Sat 17/1012:25 p.m.
YOW
-
SFO
2 stops12h 30m
WestJet
Deal found 22/7C$ 489
Tue 15/96:00 a.m.
SFO
-
YOW
1 stop10h 20m
WestJet
Sat 19/912:25 p.m.
YOW
-
SFO
2 stops12h 30m
WestJet
Deal found 22/7C$ 523
Wed 23/96:00 a.m.
SFO
-
YOW
1 stop8h 15m
WestJet
Wed 30/96:55 a.m.
YOW
-
SFO
2 stops12h 45m
WestJet
Deal found 23/7C$ 539
Fri 18/96:00 a.m.
SFO
-
YOW
1 stop10h 20m
WestJet
Sat 3/1012:25 p.m.
YOW
-
SFO
2 stops12h 30m
WestJet
Deal found 24/7C$ 542
Sun 11/101:00 p.m.
SFO
-
YOW
1 stop13h 35m
WestJet
Thu 15/107:20 a.m.
YOW
-
SFO
1 stop17h 35m
WestJet
Deal found 20/7C$ 544
Mon 14/96:00 a.m.
SFO
-
YOW
1 stop8h 15m
WestJet
Tue 22/96:15 p.m.
YOW
-
SFO
2 stops20h 45m
WestJet
Deal found 22/7C$ 549
Fri 14/86:00 a.m.
SFO
-
YOW
1 stop10h 20m
WestJet
Wed 19/812:25 p.m.
YOW
-
SFO
2 stops12h 30m
WestJet
Deal found 24/7C$ 559
Wed 26/86:00 a.m.
SFO
-
YOW
1 stop8h 15m
WestJet
Mon 19/1012:25 p.m.
YOW
-
SFO
2 stops12h 30m
WestJet
Deal found 20/7C$ 561

Find flight deals from San Francisco to Ottawa

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Ottawa (YOW). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 24 July 2026.

Round-trip from

C$ 489

One-way from

C$ 197

Popular in

May

Cheapest in

February

Average price

C$ 818
WestJet
  • WestJet
  • 12/10-17/10
  • 3 total stops
  • 22h 50m total
  • San Francisco to Ottawa
Search Deals
WestJet
  • WestJet
  • 20/10
  • 1 total stop
  • 10h 20m total
  • San Francisco to Ottawa
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (C$ 203 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (C$ 52 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Francisco to Ottawa 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 24 July 2026.
Use the filters below to find and compare flights from San Francisco to Ottawa that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Tue 15/9

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

1 stop10h 20m

Ottawa

Sat 19/9

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

2 stops12h 30m

C$ 523

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Mon 10/8

6:00 a.m.-5:15 p.m.

1 stop8h 15m

Ottawa

Tue 18/8

8:15 p.m.-9:55 p.m.

1 stop28h 40m

C$ 624

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Wed 23/9

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

1 stop8h 30m

Ottawa

Fri 25/9

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

1 stop8h 20m

C$ 639

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Sat 22/8

6:00 a.m.-5:35 p.m.

2 stops32h 35m

Ottawa

Sat 29/8

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

1 stop9h 00m

C$ 649

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Mon 17/8

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

1 stop8h 40m

Ottawa

Mon 24/8

8:15 p.m.-12:00 p.m.

1 stop18h 45m

C$ 654

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Tue 11/8

6:00 a.m.-11:35 a.m.

2 stops26h 35m

Ottawa

Mon 17/8

8:15 p.m.-4:40 p.m.

1 stop23h 25m

C$ 693

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Mon 24/8

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

1 stop10h 20m

Ottawa

Thu 27/8

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

1 stop9h 00m

C$ 693
Quickest round-trip

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Thu 1/10

6:00 a.m.-5:15 p.m.

1 stop8h 15m

Ottawa

Fri 9/10

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

1 stop8h 20m

C$ 706

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Fri 14/8

6:00 a.m.-12:25 a.m.

2 stops15h 25m

Ottawa

Wed 19/8

6:55 a.m.-9:55 p.m.

3 stops18h 00m

C$ 708
Cheapest one-way
Quickest one-way

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Sun 9/8

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

1 stop8h 30m

C$ 279

Flights are sorted by cheapest round-trip flights first.

Deals found on 22/7

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

Best time to book a flight from San Francisco to Ottawa

Have a flexible travel schedule? Discover the best time to fly to Ottawa from San Francisco 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 San Francisco to Ottawa

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

To ensure you get the cheapest price possible for a flight from San Francisco to Ottawa, you should look to book at least 23 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, February is the cheapest month in which you can book a flight from San Francisco to Ottawa (average of C$ 594). Flying from San Francisco to Ottawa in May is currently the most expensive (average of C$ 1,206). 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 San Francisco to Ottawa?

Airfare is below average for this route at the moment.

San Francisco to Ottawa flights typically cost between C$ 701 and C$ 1,208 in October.
The cheapest round-trip price found within the last 5 days was C$ 489 on WestJet (12 Oct-17 Oct).

Reviews of airlines servicing Ottawa

Get insights into the airlines that provide service to Ottawa. 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 Ottawa. Reviews last updated 24 July 2026.
See what other customers who have flown with Porter Airlines and WestJet from San Francisco to Ottawa have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
448 reviews
Check prices

Crew

8.6

Overall

8.0

Comfort

8.0

Food

7.5

Boarding

8.2

Entertainment

6.9

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats
Porter Airlines
8.0
Very good
448 reviews
Porter Airlines
8.0
Very good
448 reviews
Check prices

Crew

8.6

Overall

8.0

Comfort

8.0

Food

7.5

Boarding

8.2

Entertainment

6.9

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats
WestJet
7.2
Good
3,416 reviews
Porter Airlines
8.0
Very good
448 reviews
Check prices

Crew

8.6

Overall

8.0

Comfort

8.0

Food

7.5

Boarding

8.2

Entertainment

6.9

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats

Related info for your journey

Find useful and relevant information for your journey from San Francisco to Ottawa. 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 San Francisco to Ottawa?

    Airlines like WestJet fly from San Francisco to Ottawa in about 10h 20m. The time it takes to get you to your destination can typically vary by up to . The distance between San Francisco and Ottawa is about 3925 km.

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

    Our cheapest airline available from San Francisco to Ottawa is Porter Airlines. Our recent data shows that you can find tickets from as low as C$ 200 on this airline. An additional option worth looking into is WestJet, starting at C$ 462. Porter Airlines is 75% cheaper than the average price of flights available within the next 90 days to this destination.

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from San Francisco to Ottawa (average of C$ 594). Flying from San Francisco to Ottawa in May is currently the most expensive (average of C$ 1,206). 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

Travelling to a place near Ottawa?

Book flights to Ottawa if you plan to visit one of these locations
Gatineau
Brockville
Prescott
Wakefield
Pembroke
Smiths Falls

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Alternative routes for San Francisco to Ottawa

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from San Francisco to Ottawa

Discover the top 2 airlines that operate flights from San Francisco to Ottawa. 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 24 July 2026.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapestC$ 200AverageC$ 541FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
WestJetCheapestC$ 462AverageC$ 753FlexibilityNo 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 San Francisco to Ottawa?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Ottawa from San Francisco today with Cheapflights!

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

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

Yes, we can. To see specific flights from San Francisco to Ottawa with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Ottawa from San Francisco today and book when prices fit your budget.

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