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 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$ 462.

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

Toronto (YYZ) – chosen by Cheapflights users on 58% of one-stop itineraries from Ottawa to San Francisco on Cheapflights.

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 26m.

How long is the flight from Ottawa to San Francisco?

For as low as C$ 374, Air Canada can have you in San Francisco from Ottawa in 8h 24m. 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?

United Airlines, at C$ 339, was found to be the cheapest airline from Ottawa to San Francisco.Alternate airlines to your destination round-trip include Porter Airlines and Air Canada. United Airlines is priced at 33% 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$ 218 is the cheapest one-way deal found within the past few days, from Air Canada. You may also be able to find cheap deals on Porter Airlines and United Airlines, with prices starting from C$ 225 and C$ 232, 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: Air Canada, Porter Airlines or WestJet.

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$ 212+ Flights from Ottawa to San Francisco

Cheapflights Tip: The best prices from Ottawa to San Francisco are usually found in January or May, booked 54 days in advance, depart on a Thursday or Wednesday and return on a Friday

Find flight deals from Ottawa to San Francisco

Enter your travel dates to find the best prices.

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 17 October 2025.

Sat 22/114:10 p.m.YOW - SFO

1 stop8h 24mAir Canada

Tue 9/126:00 p.m.SFO - YOW

1 stop9h 43mAir Canada

Deal found 14/10C$ 374

Thu 4/122:50 p.m.YOW - SFO

1 stop9h 32mAir Canada

Mon 8/126:00 p.m.SFO - YOW

1 stop9h 43mAir Canada

Deal found 14/10C$ 385

Sun 9/117:30 p.m.YOW - SFO

1 stop17h 06mUnited Airlines

Sat 15/116:45 p.m.SFO - YOW

2 stops18h 47mUnited Airlines

Deal found 14/10C$ 392

Sat 22/114:10 p.m.YOW - SFO

1 stop8h 24mAir Canada

Sun 30/116:00 p.m.SFO - YOW

2 stops18h 00mAir Canada

Deal found 14/10C$ 418

Fri 5/126:00 a.m.YOW - SFO

1 stop9h 12mWestJet

Thu 11/121:00 p.m.SFO - YOW

1 stop8h 40mWestJet

Deal found 16/10C$ 462

Thu 30/106:20 a.m.YOW - SFO

1 stop10h 05mUnited Airlines

Sat 1/1112:43 a.m.SFO - YOW

2 stops11h 47mUnited Airlines

Deal found 14/10C$ 466

Fri 5/126:45 p.m.YOW - SFO

1 stop17h 45mMultiple Airlines

Thu 11/1210:15 a.m.SFO - YOW

1 stop25h 29mMultiple Airlines

Deal found 16/10C$ 473

Wed 12/115:00 a.m.YOW - SFO

2 stops11h 25mUnited Airlines

Mon 17/118:55 p.m.SFO - YOW

2 stops16h 37mUnited Airlines

Deal found 14/10C$ 475

Sat 22/115:40 a.m.YOW - SFO

2 stops33h 32mWestJet

Tue 9/121:00 p.m.SFO - YOW

2 stops32h 42mWestJet

Deal found 14/10C$ 483

Wed 12/1112:05 p.m.YOW - SFO

2 stops10h 41mUnited Airlines

Wed 19/116:30 a.m.SFO - YOW

2 stops11h 48mUnited Airlines

Deal found 14/10C$ 484

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 17 October 2025.

Sat 22/114:10 p.m.YOW - SFO

1 stop8h 24mAir Canada

Tue 9/126:00 p.m.SFO - YOW

1 stop9h 43mAir Canada

Deal found 14/10C$ 374

Wed 12/112:15 p.m.YOW - SFO

1 stop9h 50mUnited Airlines

Mon 17/118:55 p.m.SFO - YOW

2 stops16h 37mUnited Airlines

Deal found 14/10C$ 392

Fri 5/126:00 a.m.YOW - SFO

1 stop9h 12mWestJet

Thu 11/121:00 p.m.SFO - YOW

1 stop8h 40mWestJet

Deal found 16/10C$ 462

Sun 9/117:30 p.m.YOW - SFO

1 stop17h 06mUnited Airlines

Fri 14/1112:43 a.m.SFO - YOW

2 stops20h 11mUnited Airlines

Deal found 14/10C$ 392

Thu 30/106:20 a.m.YOW - SFO

1 stop8h 36mUnited Airlines

Sun 2/1110:40 p.m.SFO - YOW

1 stop8h 46mUnited Airlines

Deal found 14/10C$ 392

Wed 4/35:35 p.m.YOW - SFO

2 stops20h 04mAir Canada

Thu 5/32:30 p.m.SFO - YOW

1 stop8h 08mAir Canada

Deal found 13/10C$ 437

Sun 15/26:00 a.m.YOW - SFO

1 stop9h 10mWestJet

Thu 12/31:00 p.m.SFO - YOW

1 stop8h 40mWestJet

Deal found 15/10C$ 469

Wed 12/112:15 p.m.YOW - SFO

1 stop9h 50mUnited Airlines

Wed 19/116:30 a.m.SFO - YOW

2 stops11h 48mUnited Airlines

Deal found 14/10C$ 475

Wed 12/1112:05 p.m.YOW - SFO

2 stops10h 41mUnited Airlines

Sat 15/116:30 a.m.SFO - YOW

2 stops12h 26mUnited Airlines

Deal found 14/10C$ 475

Mon 10/1112:05 p.m.YOW - SFO

2 stops12h 17mUnited Airlines

Sat 15/119:00 p.m.SFO - YOW

2 stops16h 32mUnited Airlines

Deal found 14/10C$ 475

Last-minute flights from Ottawa to San Francisco
Discover last-minute flight deals from Ottawa to San Francisco. Data last updated 17 October 2025 and is based on user searches.

Thu 30/106:20 a.m.YOW - SFO

1 stop10h 05mUnited Airlines

Sat 1/1112:43 a.m.SFO - YOW

2 stops11h 47mUnited Airlines

Deal found 14/10C$ 466

Sun 9/117:30 p.m.YOW - SFO

1 stop17h 06mUnited Airlines

Sat 15/116:45 p.m.SFO - YOW

2 stops18h 47mUnited Airlines

Deal found 14/10C$ 392

Wed 12/115:00 a.m.YOW - SFO

2 stops11h 25mUnited Airlines

Mon 17/118:55 p.m.SFO - YOW

2 stops16h 37mUnited Airlines

Deal found 14/10C$ 475

Wed 12/1112:05 p.m.YOW - SFO

2 stops10h 41mUnited Airlines

Wed 19/116:30 a.m.SFO - YOW

2 stops11h 48mUnited Airlines

Deal found 14/10C$ 484

Wed 12/1111:10 a.m.YOW - SFO

2 stops11h 36mUnited Airlines

Sun 16/1111:44 p.m.SFO - YOW

1 stop7h 42mUnited Airlines

Deal found 13/10C$ 489

Wed 12/115:40 a.m.YOW - SFO

2 stops11h 35mDelta

Mon 17/117:15 a.m.SFO - YOW

2 stops14h 27mDelta

Deal found 13/10C$ 498

Sat 22/114:10 p.m.YOW - SFO

1 stop8h 24mAir Canada

Tue 9/126:00 p.m.SFO - YOW

1 stop9h 43mAir Canada

Deal found 14/10C$ 374

Sat 22/114:10 p.m.YOW - SFO

1 stop8h 24mAir Canada

Sun 30/116:00 p.m.SFO - YOW

2 stops18h 00mAir Canada

Deal found 14/10C$ 418

Sat 22/115:40 a.m.YOW - SFO

2 stops33h 32mWestJet

Tue 9/121:00 p.m.SFO - YOW

2 stops32h 42mWestJet

Deal found 14/10C$ 483

Sun 23/116:00 a.m.YOW - SFO

1 stop9h 12mMultiple Airlines

Sun 30/1110:15 a.m.SFO - YOW

1 stop25h 29mMultiple Airlines

Deal found 16/10C$ 496

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 17 October 2025.

Sun 25/16:00 a.m.YOW - SFO

1 stop9h 12mWestJet

Deal found 14/10C$ 212

Sat 15/117:45 a.m.YOW - SFO

1 stop10h 50mAir Canada

Deal found 14/10C$ 218

Thu 13/116:45 a.m.YOW - SFO

1 stop8h 55mPorter Airlines

Deal found 14/10C$ 225

Sat 13/122:05 p.m.YOW - SFO

1 stop10h 34mAir Canada

Deal found 14/10C$ 226

Mon 12/17:27 p.m.YOW - SFO

1 stop9h 03mUnited Airlines

Deal found 13/10C$ 232

Sat 1/116:20 a.m.YOW - SFO

2 stops19h 35mUnited Airlines

Deal found 14/10C$ 234

Fri 14/115:14 p.m.YOW - SFO

2 stops19h 21mUnited Airlines

Deal found 14/10C$ 242

Sun 14/127:25 p.m.YOW - SFO

3 stops43h 47mMultiple Airlines

Deal found 15/10C$ 257

Tue 25/116:00 a.m.YOW - SFO

1 stop9h 12mWestJet

Deal found 15/10C$ 260

Sun 23/116:00 a.m.YOW - SFO

1 stop9h 12mWestJet

Deal found 16/10C$ 261

Mon 15/127:25 p.m.YOW - SFO

2 stops19h 47mMultiple Airlines

Deal found 15/10C$ 264

Wed 12/116:45 a.m.YOW - SFO

1 stop8h 55mPorter Airlines

Deal found 15/10C$ 268

Cheap flight deals from Ottawa to San Francisco

Round-trip from	C$ 374
One-way from	C$ 212
Popular in	December
Cheapest in	January
Average price	C$ 508

Air Canada
22/11-9/12
2 total stops
18h 07m total
Ottawa to San Francisco

Search Deals

WestJet
25/1
1 total stop
9h 12m total
Ottawa to San Francisco

Search Deals

Highest demand for flights based on searches. 11% potential increase in price (C$ 96 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (C$ 26 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in October 2025

Search Deals

Cheapflights Fare Finder

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

Sat 22/11

4:10 p.m.-9:34 p.m.

1 stop8h 24m

San Francisco

Tue 9/12

6:00 p.m.-6:43 a.m.

1 stop9h 43m

C$ 374

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Wed 12/11

2:15 p.m.-9:05 p.m.

1 stop9h 50m

San Francisco

Mon 17/11

8:55 p.m.-4:32 p.m.

2 stops16h 37m

C$ 392

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Sun 9/11

7:30 p.m.-9:36 a.m.

1 stop17h 06m

San Francisco

Fri 14/11

12:43 a.m.-11:54 p.m.

2 stops20h 11m

C$ 392

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Thu 30/10

6:20 a.m.-11:56 a.m.

1 stop8h 36m

San Francisco

Sun 2/11

10:40 p.m.-10:26 a.m.

1 stop8h 46m

C$ 392

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Wed 4/3

5:35 p.m.-10:39 a.m.

2 stops20h 04m

San Francisco

Thu 5/3

2:30 p.m.-1:38 a.m.

1 stop8h 08m

C$ 437

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Fri 5/12

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

1 stop9h 12m

San Francisco

Thu 11/12

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

1 stop8h 40m

C$ 462

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Sun 15/2

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

1 stop9h 10m

San Francisco

Thu 12/3

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

1 stop8h 40m

C$ 469

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Wed 12/11

2:15 p.m.-9:05 p.m.

1 stop9h 50m

San Francisco

Wed 19/11

6:30 a.m.-9:18 p.m.

2 stops11h 48m

C$ 475

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Wed 12/11

12:05 p.m.-7:46 p.m.

2 stops10h 41m

San Francisco

Sat 15/11

6:30 a.m.-9:56 p.m.

2 stops12h 26m

C$ 475

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Mon 10/11

12:05 p.m.-9:22 p.m.

2 stops12h 17m

San Francisco

Sat 15/11

9:00 p.m.-4:32 p.m.

2 stops16h 32m

C$ 475

Flights are sorted by cheapest round-trip flights first.

Deals found on 14/10

Showing 1-10 of 20 results

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.

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 54 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, April is the cheapest month in which you can book a flight from Ottawa to San Francisco (average of C$ 308). Flying from Ottawa to San Francisco in October is currently the most expensive (average of C$ 375). 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 SFO?

A simple way to save on the total cost of your ticket is to fly from Ottawa to San Francisco at noon. If you’re flexible enough to do this you can expect to save up to 8% on your trip compared to booking a flight in the evening.

What is the cheapest day to fly from Ottawa to San Francisco?

Travelers seeking maximum savings on their Ottawa to San Francisco flight should consider departing on Sunday evenings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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

381 reviews

Check prices

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

8.0

Very good

381 reviews

Porter Airlines

8.0

Very good

381 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Anonymous,Sep 2025

YYZ - OPO

United Airlines

7.4

Good

8,982 reviews

Porter Airlines

8.0

Very good

381 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Anonymous,Sep 2025

YYZ - OPO

WestJet

7.2

Good

3,127 reviews

Porter Airlines

8.0

Very good

381 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Anonymous,Sep 2025

YYZ - OPO

Air Canada

7.1

Good

10,307 reviews

Porter Airlines

8.0

Very good

381 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Anonymous,Sep 2025

YYZ - OPO

Related info for your journey

How long is the flight from Ottawa to San Francisco?
For as low as C$ 374, Air Canada can have you in San Francisco from Ottawa in 8h 24m. 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?
United Airlines, at C$ 339, was found to be the cheapest airline from Ottawa to San Francisco.Alternate airlines to your destination round-trip include Porter Airlines and Air Canada. United Airlines is priced at 33% 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$ 218 is the cheapest one-way deal found within the past few days, from Air Canada. You may also be able to find cheap deals on Porter Airlines and United Airlines, with prices starting from C$ 225 and C$ 232, 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, April is the cheapest month in which you can book a flight from Ottawa to San Francisco (average of C$ 308). Flying from Ottawa to San Francisco in October is currently the most expensive (average of C$ 375). 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

Richmond

Newark

Alameda

Redwood City

Burlingame

San Bruno

South San Francisco

Scotts Valley

Belmont

Novato

Santa Clara

Vallejo

Browse thousands of different options on Cheapflights for your next trip

Top 4 airlines flying from Ottawa to San Francisco

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	CheapestC$ 339	AverageC$ 498	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Porter Airlines	CheapestC$ 341	AverageC$ 436	FlexibilityNo cancel fee	On-time52%	Search Porter Airlines flights
Air Canada	CheapestC$ 343	AverageC$ 616	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
WestJet	CheapestC$ 346	AverageC$ 443	FlexibilityNo cancel fee	On-time60%	Search WestJet flights

Fly with Cheapflights

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from Ottawa to San Francisco from C$ 212

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 25/1. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from Ottawa to San Francisco are usually found in January or May, booked 54 days in advance, depart on a Thursday or Wednesday and return on a Friday

Find 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 17 October 2025.

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 17 October 2025.

Cheap flight deals from Ottawa to San Francisco

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

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?

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

What is the cheapest day to fly from Ottawa to San Francisco?

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

What’s the fastest layover option 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?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 17 October 2025.

Top 4 airlines flying from Ottawa to San Francisco

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?

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

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

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

100% Free

Book with Flexibility

Travel Smart

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 17 October 2025.