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Cheap flights from San Francisco International to Ottawa International

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Compare San Francisco International to Ottawa International flight deals

Find the cheapest month or even day of the year to fly to Ottawa International

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Flight deals from San Francisco International to Ottawa International

Looking for a cheap last-minute deal or the best round-trip flight from San Francisco International to Ottawa International? Find the lowest prices on one-way and round-trip tickets right here.
Ottawa.C$384 per passenger.Departing Fri, Aug 8, returning Sat, Aug 16.Round-trip flight with WestJet.Outbound indirect flight with WestJet, departing from San Francisco International on Fri, Aug 8, arriving in Ottawa International.Inbound indirect flight with WestJet, departing from Ottawa International on Sat, Aug 16, arriving in San Francisco International.Price includes taxes and charges.From C$384, select.
Ottawa.C$445 per passenger.Departing Wed, May 28, returning Tue, Jun 10.Round-trip flight with Flair Airlines and WestJet.Outbound indirect flight with Flair Airlines, departing from San Francisco International on Wed, May 28, arriving in Ottawa International.Inbound indirect flight with WestJet, departing from Ottawa International on Tue, Jun 10, arriving in San Francisco International.Price includes taxes and charges.From C$445, select.
Ottawa.C$461 per passenger.Departing Mon, May 12, returning Sun, May 18.Round-trip flight with Frontier Airlines and WestJet.Outbound indirect flight with Frontier Airlines, departing from San Francisco International on Mon, May 12, arriving in Ottawa International.Inbound indirect flight with WestJet, departing from Ottawa International on Sun, May 18, arriving in San Francisco International.Price includes taxes and charges.From C$461, select.
Ottawa.C$483 per passenger.Departing Fri, Jun 6, returning Mon, Jun 16.Round-trip flight with WestJet.Outbound indirect flight with WestJet, departing from San Francisco International on Fri, Jun 6, arriving in Ottawa International.Inbound indirect flight with WestJet, departing from Ottawa International on Mon, Jun 16, arriving in San Francisco International.Price includes taxes and charges.From C$483, select.
Ottawa.C$497 per passenger.Departing Wed, Sep 3, returning Tue, Sep 9.Round-trip flight with WestJet.Outbound indirect flight with WestJet, departing from San Francisco International on Wed, Sep 3, arriving in Ottawa International.Inbound indirect flight with WestJet, departing from Ottawa International on Tue, Sep 9, arriving in San Francisco International.Price includes taxes and charges.From C$497, select.
Ottawa.C$551 per passenger.Departing Thu, Jun 26, returning Sat, Jul 5.Round-trip flight with WestJet.Outbound indirect flight with WestJet, departing from San Francisco International on Thu, Jun 26, arriving in Ottawa International.Inbound indirect flight with WestJet, departing from Ottawa International on Sat, Jul 5, arriving in San Francisco International.Price includes taxes and charges.From C$551, select.
Ottawa.C$601 per passenger.Departing Tue, Sep 30, returning Fri, Oct 3.Round-trip flight with WestJet.Outbound indirect flight with WestJet, departing from San Francisco International on Tue, Sep 30, arriving in Ottawa International.Inbound indirect flight with WestJet, departing from Ottawa International on Fri, Oct 3, arriving in San Francisco International.Price includes taxes and charges.From C$601, select.
Ottawa.C$882 per passenger.Departing Sun, Jul 20, returning Wed, Jul 30.Round-trip flight with Porter Airlines (Canada) Ltd.Outbound indirect flight with Porter Airlines (Canada) Ltd, departing from San Francisco International on Sun, Jul 20, arriving in Ottawa International.Inbound indirect flight with Porter Airlines (Canada) Ltd, departing from Ottawa International on Wed, Jul 30, arriving in San Francisco International.Price includes taxes and charges.From C$882, select.

When is the cheapest time to fly from San Francisco International to Ottawa International?

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like San Francisco International to Ottawa International flights are currently cheapest in August.
Apr
Find prices
May
from C$461
Jun
from C$483
Jul
from C$882
Aug
from C$384
Sep
from C$497
Oct
from C$941
Nov
from C$941
Dec
Find prices
Jan
Find prices
Feb
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Mar
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San Francisco International to Ottawa International: Alternative routes

Compare routes from San Francisco International to Ottawa below. You may find an airport to fly into that's cheaper, faster, or easier than Ottawa International.

San Francisco to Ottawa: Flight information

The things to know before you go.
Cheapest flight foundC$384
Cheapest month to flyAugust

Finding cheap flights from San Francisco International to Ottawa International: Frequently asked questions

The best price we found for a round-trip flight from San Francisco International to Ottawa International is C$384. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from San Francisco International to Ottawa International. But we found flights with one or more stops from C$384.
There are no flights flying from San Francisco International to Ottawa International, as of April 2025.
The cheapest month to fly from San Francisco International to Ottawa International is usually April 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from San Francisco International Airport to Ottawa International Airport on Friday, August 8, 2025.
No airlines currently offer direct flights between San Francisco International Airport and Ottawa International Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Ottawa International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to Ottawa is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, WestJet offers the cheapest flight tickets to Ottawa International.

Travelling from San Francisco International Airport (SFO) to Ottawa/Macdonald-Cartier International Airport (YOW): what you need to know

  • The timezone in Ottawa is UTC-4, which is three hours ahead of San Francisco.

  • For a smooth journey, arrive at the airport two hours ahead of international flights and one hour before domestic departures. This way, you'll have plenty of time to catch your SFO to YOW flight.

  • You can expect longer lines in popular months like August. Arriving up to four hours ahead of international flights and two hours for a domestic departure will give you ample time for security and boarding.

  • If you'd like to explore another city along the way, just uncheck 'Direct flights only' when searching for your ticket from San Francisco International Airport to Ottawa/Macdonald-Cartier International Airport. Here are the most popular stopovers between SFO and YOW:

    • Pearson International Airport

    • Washington Dulles International Airport

    • Montreal-Pierre Elliott Trudeau International Airport

How to find the cheapest flights from San Francisco International Airport (SFO) to Ottawa/Macdonald-Cartier International Airport (YOW)

  • The cheapest price we've found for a one-way San Francisco International Airport to Ottawa/Macdonald-Cartier International Airport flight is C$168. A return plane ticket is currently C$384. Depending on the availability when you book, these fares could change.

  • To find cheap tickets from SFO to YOW, book as early as you can. Airlines typically offer their best fares when flights are first released.

  • The 'Whole month' search tool shows you the cheapest flights from San Francisco International Airport to Ottawa/Macdonald-Cartier International Airport across the entire month. It's an easy way to snap up a bargain if your plans aren't set in stone.

  • You won't have to check every day to find out if fares have dropped when you set up a Price Alert. We'll let you know as soon as there's a new deal on cheap flights from SFO to YOW.

  • Tailor your flights with filters. Pick your arrival and departure times, total journey duration and airlines. You can also sort your results by 'Cheapest,' 'Best' or 'Fastest' flights from San Francisco International Airport to Ottawa/Macdonald-Cartier International Airport.

Handy information about San Francisco International Airport (SFO)

  • 77.36% of flights taking off from San Francisco International Airport touch down at their destination on schedule.

  • San Francisco International Airport is about 21 kilometres from central San Francisco. If you're driving, catching a cab or ride-sharing from the centre, it'll take you 20 minutes or so to arrive, depending on the traffic.

  • Expect a journey time of roughly 45 minutes on public transport.

  • Get your travels off to a stress-free start by staying near SFO. Whether you have an early flight from San Francisco International Airport to Ottawa/Macdonald-Cartier International Airport or just don't want to be rushed, these stays are perfect:

Arriving at Ottawa/Macdonald-Cartier International Airport (YOW)

Getting from Ottawa/Macdonald-Cartier International Airport (YOW) to central Ottawa

  • The street address for YOW is 50 Airport Road.

  • Ottawa/Macdonald-Cartier International Airport is roughly 13 kilometres from the centre of Ottawa. The drive time takes about 20 minutes.

  • It typically takes 45 minutes if you're travelling by public transport.

When to fly to Ottawa/Macdonald-Cartier International Airport (YOW)

  • The quietest month for a flight from San Francisco International Airport to Ottawa/Macdonald-Cartier International Airport is February, while July is the most popular. Choose the best time to go to Ottawa based on whether you prefer a faster pace or a more relaxed vibe.

  • When reserving your flight from San Francisco International Airport to Ottawa/Macdonald-Cartier International Airport, think about the type of weather you enjoy. July is the warmest month in Ottawa, with the temperature ranging from 13ºC (55ºF) to 27ºC (81ºF).

  • January sees average temperatures of between -19ºC (-2ºF) and -2ºC (28ºF). Search for cheap tickets from SFO to YOW sometime around then if you'd rather travel in cooler conditions.

Explore more of Canada

  • Ottawa has loads to offer, but there are so many other corners of Canada you should also see. About 354 kilometres south-west of Ottawa, a visit to Toronto will keep you on the move. Check out popular attractions like CN Tower, Royal Ontario Museum and Go Tours Canada - Distillery District.

  • Montreal is another essential stop in Canada and is around 153 kilometres east of Ottawa. No journey is complete without dropping by Mount Royal Park, Montreal Botanical Garden and Saint Joseph's Oratory of Mount Royal.

Plan the rest of your trip from San Francisco to Ottawa

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.