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Cheap flights from Ottawa to San Francisco from C$ 225

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 27/1. 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
7:15 p.m. - 12:10 p.m.
YOW
-
SFO
19h 55m2 stops
WestJet Logo
1:00 p.m. - 12:40 a.m.
SFO
-
YOW
8h 40m1 stop
C$ 394WestJet
Mon, 2 Feb - Thu, 5 Feb
WestJet Logo
7:15 p.m. - 12:10 p.m.
YOW
-
SFO
19h 55m2 stops
WestJet Logo
1:00 p.m. - 6:23 p.m.
SFO
-
YOW
26h 23m2 stops
C$ 412WestJet
Mon, 2 Feb - Thu, 5 Feb
WestJet Logo
6:00 a.m. - 11:54 a.m.
YOW
-
SFO
8h 54m1 stop
WestJet Logo
12:50 p.m. - 12:40 a.m.
SFO
-
YOW
8h 50m1 stop
C$ 413WestJet
Mon, 25 May - Mon, 1 Jun
WestJet Logo
6:15 a.m. - 5:14 p.m.
YOW
-
SFO
13h 59m2 stops
WestJet Logo
12:50 p.m. - 5:28 a.m.
SFO
-
YOW
13h 38m2 stops
C$ 415WestJet
Sun, 24 May - Mon, 1 Jun
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$ 416WestJet
Mon, 2 Feb - Thu, 5 Feb
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$ 419WestJet
Sun, 24 May - Mon, 1 Jun
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$ 435WestJet
Thu, 19 Feb - Fri, 27 Feb
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$ 441WestJet
Thu, 19 Feb - Fri, 27 Feb
WestJet Logo
5:15 p.m. - 1:57 p.m.
YOW
-
SFO
23h 42m2 stops
WestJet Logo
7:30 a.m. - 12:22 a.m.
SFO
-
YOW
13h 52m2 stops
C$ 446WestJet
Thu, 14 May - Sun, 17 May
WestJet Logo
7:45 a.m. - 5:14 p.m.
YOW
-
SFO
12h 29m1 stop
WestJet Logo
12:50 p.m. - 12:40 a.m.
SFO
-
YOW
8h 50m1 stop
C$ 449WestJet
Sun, 24 May - Mon, 1 Jun

Delta flights from Ottawa to San Francisco

Our best Delta deals on Ottawa to San Francisco flight tickets
Delta
25 Jan
YOW6:00 a.m.Ottawa
9h 12m
1 stop
SFO12:12 p.m.San Francisco
1 Feb
SFO5:45 a.m.San Francisco
15h 54m
2 stops
YOW12:39 a.m.Ottawa
C$ 642
Find similar
Delta
13 Jan
YOW5:40 a.m.Ottawa
15h 58m
2 stops
SFO6:38 p.m.San Francisco
1 Feb
SFO5:45 a.m.San Francisco
15h 54m
2 stops
YOW12:39 a.m.Ottawa
C$ 658
Find similar
Delta
13 Jan
YOW5:40 a.m.Ottawa
15h 58m
2 stops
SFO6:38 p.m.San Francisco
1 Feb
SFO5:45 a.m.San Francisco
15h 54m
2 stops
YOW12:39 a.m.Ottawa
C$ 660
Find similar

WestJet flights from Ottawa to San Francisco

Our best WestJet deals on Ottawa to San Francisco flight tickets
WestJet
2 Feb
YOW7:15 p.m.Ottawa
19h 55m
2 stops
SFO12:10 p.m.San Francisco
5 Feb
SFO1:00 p.m.San Francisco
8h 40m
1 stop
YOW12:40 a.m.Ottawa
C$ 394
Find similar
WestJet
2 Feb
YOW7:15 p.m.Ottawa
19h 55m
2 stops
SFO12:10 p.m.San Francisco
5 Feb
SFO1:00 p.m.San Francisco
26h 23m
2 stops
YOW6:23 p.m.Ottawa
C$ 412
Find similar
WestJet
25 May
YOW6:00 a.m.Ottawa
8h 54m
1 stop
SFO11:54 a.m.San Francisco
1 Jun
SFO12:50 p.m.San Francisco
8h 50m
1 stop
YOW12:40 a.m.Ottawa
C$ 413
Find similar

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 31 December 2025.
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

Mon 2/2

7:15 p.m.-12:10 p.m.

2 stops19h 55m

San Francisco

Thu 5/2

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

1 stop8h 40m

C$ 394

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Mon 2/2

7:15 p.m.-12:10 p.m.

2 stops19h 55m

San Francisco

Thu 5/2

1:00 p.m.-6:23 p.m.

2 stops26h 23m

C$ 412

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Mon 25/5

6:00 a.m.-11:54 a.m.

1 stop8h 54m

San Francisco

Mon 1/6

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

1 stop8h 50m

C$ 413

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Sun 24/5

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

2 stops13h 59m

San Francisco

Mon 1/6

12:50 p.m.-5:28 a.m.

2 stops13h 38m

C$ 415

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Mon 2/2

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

1 stop21h 25m

San Francisco

Thu 5/2

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

1 stop8h 40m

C$ 416

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Sun 24/5

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

2 stops13h 59m

San Francisco

Mon 1/6

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

1 stop8h 50m

C$ 419

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Thu 19/2

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

1 stop9h 10m

San Francisco

Fri 27/2

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

1 stop8h 40m

C$ 435

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Thu 19/2

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

1 stop9h 10m

San Francisco

Fri 27/2

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

1 stop8h 40m

C$ 441

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Thu 14/5

5:15 p.m.-1:57 p.m.

2 stops23h 42m

San Francisco

Sun 17/5

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

2 stops13h 52m

C$ 446

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Sun 24/5

7:45 a.m.-5:14 p.m.

1 stop12h 29m

San Francisco

Mon 1/6

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

1 stop8h 50m

C$ 449

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$ 409, 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$ 427.

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$ 500 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$ 419 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 December 2025, prices for Ottawa to San Francisco flights are approximately 9% 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 23m

Direct flights

None
The fastest flight from Ottawa to San Francisco takes 8h 23m
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 23m.

  • 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$ 326Free CancellationRating
8.0
403 reviews
Search Porter Airlines flights
WestJetPriceFrom C$ 329Free CancellationRating
7.2
3,227 reviews
Search WestJet flights
United AirlinesPriceFrom C$ 331Free CancellationRating
7.4
9,123 reviews
Search United Airlines flights
Air CanadaPriceFrom C$ 333Free CancellationRating
7.1
10,571 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
Cupertino
Mill Valley
Morgan Hill
Los Banos
Pacifica
Mountain View
Woodland
Roseville

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.
Start using Trips
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