Find flights
When to book
Airlines
FAQs

Cheap flights from Ottawa to San Diego from C$ 246

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 9/5. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — SAN
29 Apr — 6 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ottawa to San Diego

Enter your travel dates to find the best prices.

Cheapest flights from Ottawa to San Diego
Explore the most affordable flight options available from Ottawa to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 March 2026.

Sat 5/97:20 a.m.
YOW
-
SAN
1 stop9h 50m
WestJet
Mon 14/93:30 p.m.
SAN
-
YOW
1 stop11h 05m
WestJet
Deal found 29/3C$ 446
Thu 30/47:20 a.m.
YOW
-
SAN
1 stop9h 50m
WestJet
Thu 7/53:30 p.m.
SAN
-
YOW
1 stop11h 05m
WestJet
Deal found 30/3C$ 449
Tue 5/52:35 p.m.
YOW
-
SAN
1 stop9h 08m
Air Canada
Wed 6/58:10 a.m.
SAN
-
YOW
1 stop13h 45m
Air Canada
Deal found 25/3C$ 465
Fri 1/56:15 p.m.
YOW
-
SAN
2 stops22h 55m
WestJet
Sat 9/53:30 p.m.
SAN
-
YOW
1 stop11h 05m
WestJet
Deal found 30/3C$ 482
Sat 25/77:20 a.m.
YOW
-
SAN
1 stop9h 50m
WestJet
Tue 11/83:30 p.m.
SAN
-
YOW
1 stop11h 05m
WestJet
Deal found 28/3C$ 497

Find flight deals from Ottawa to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Ottawa (YOW) to San Diego (SAN). 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 30 March 2026.

Round-trip from

C$ 446

One-way from

C$ 246

Popular in

October

Cheapest in

May

Average price

C$ 667
WestJet
  • WestJet
  • 5/9-14/9
  • 2 total stops
  • 20h 55m total
  • Ottawa to San Diego
Search Deals
Air Canada
  • Air Canada
  • 9/5
  • 1 total stop
  • 9h 45m total
  • Ottawa to San Diego
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (C$ 164 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (C$ 46 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ottawa to San Diego 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 30 March 2026.
Use the filters below to find and compare flights from Ottawa to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Fri 1/5

6:15 p.m.-2:10 p.m.

2 stops22h 55m

San Diego

Sat 9/5

3:30 p.m.-5:35 a.m.

1 stop11h 05m

C$ 482

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Thu 30/4

7:20 a.m.-2:10 p.m.

1 stop9h 50m

San Diego

Thu 7/5

3:30 p.m.-12:30 p.m.

2 stops18h 00m

C$ 483

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Fri 5/6

6:25 a.m.-6:30 p.m.

1 stop15h 05m

San Diego

Mon 8/6

9:45 p.m.-2:17 p.m.

1 stop13h 32m

C$ 514

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Thu 23/7

5:20 p.m.-10:34 p.m.

1 stop8h 14m

San Diego

Wed 12/8

6:20 a.m.-9:35 p.m.

2 stops12h 15m

C$ 515

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Wed 29/7

6:25 a.m.-11:21 a.m.

1 stop7h 56m

San Diego

Mon 10/8

4:41 p.m.-1:59 p.m.

1 stop18h 18m

C$ 515
Quickest round-trip

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Wed 29/7

5:20 p.m.-10:34 p.m.

1 stop8h 14m

San Diego

Sat 15/8

9:45 p.m.-9:56 a.m.

1 stop9h 11m

C$ 515

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Tue 28/4

10:44 a.m.-8:39 p.m.

2 stops12h 55m

San Diego

Sun 3/5

9:45 p.m.-10:03 a.m.

1 stop9h 18m

C$ 525
Cheapest one-way

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Wed 13/5

2:40 p.m.-12:28 a.m.

2 stops12h 48m

C$ 299

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Sun 26/4

6:15 p.m.-2:10 p.m.

2 stops22h 55m

C$ 306

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Mon 13/7

6:00 a.m.-7:50 p.m.

2 stops16h 50m

C$ 329

Flights are sorted by cheapest round-trip flights first.

Deals found on 29/3

Showing 1-10 of 16 resultsSorted by cheapest first
1
2

Best time to book a flight from Ottawa to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego 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 Diego

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

Use this chart to determine the optimal time to book a round-trip flight from Ottawa to San Diego. Price data was last updated on 13 March 2026.

To ensure you get the cheapest price possible for a flight from Ottawa to San Diego, you should look to book at least 36 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 Ottawa to San Diego?

Currently, January is the cheapest month in which you can book a flight from Ottawa to San Diego (average of C$ 182). Flying from Ottawa to San Diego in December is currently the most expensive (average of C$ 425). 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 Ottawa to San Diego?

Reviews of airlines servicing San Diego

Get insights into the airlines that provide service to San Diego. 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 Diego. Reviews last updated 30 March 2026.
See what other customers who have flown with United Airlines,WestJet, andAir Canada from Ottawa to San Diego have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,514 reviews
Check prices

Boarding

7.7

Overall

7.4

Entertainment

7.1

Crew

8.1

Comfort

7.3

Food

6.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
United Airlines
7.4
Good
9,514 reviews
United Airlines
7.4
Good
9,514 reviews
Check prices

Boarding

7.7

Overall

7.4

Entertainment

7.1

Crew

8.1

Comfort

7.3

Food

6.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
WestJet
7.2
Good
3,307 reviews
United Airlines
7.4
Good
9,514 reviews
Check prices

Boarding

7.7

Overall

7.4

Entertainment

7.1

Crew

8.1

Comfort

7.3

Food

6.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
Air Canada
7.1
Good
10,862 reviews
United Airlines
7.4
Good
9,514 reviews
Check prices

Boarding

7.7

Overall

7.4

Entertainment

7.1

Crew

8.1

Comfort

7.3

Food

6.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

Related info for your journey

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

    Departing from Ottawa to San Diego will take you 15h 05m. The distance between Ottawa and San Diego is about 3798 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    Currently priced at C$ 361, Air Canada will fly you from Ottawa to San Diego and back. In addition to Air Canada, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from WestJet and United Airlines - these airlines can fly you to your destination from C$ 391 and C$ 398, respectively. Air Canada is currently priced 42% below the average price you’ll pay for this route.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Ottawa to San Diego (average of C$ 182). Flying from Ottawa to San Diego in December is currently the most expensive (average of C$ 425). 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 San Diego?

Book flights to San Diego if you plan to visit one of these locations
El Cajon
La Mesa
Borrego Springs

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.

Alternative routes for Ottawa to San Diego

See prices for flight routes from nearby airports that may be better suited for you.
Pearson Intl to Las Vegas flights
Pearson Intl to Los Angeles flights
Pierre Elliott Trudeau Intl to Los Angeles flights
Pierre Elliott Trudeau Intl to Las Vegas flights
Pearson Intl to San Francisco flights
Pierre Elliott Trudeau Intl to San Francisco flights
Toronto Island to Las Vegas flights
Pearson Intl to San Diego flights
Pearson Intl to Ontario flights
Toronto Island to Los Angeles flights
Toronto Island to San Francisco flights
Region of Waterloo Intl to Las Vegas flights
Pearson Intl to Sacramento flights
Hamilton to Las Vegas flights
Region of Waterloo Intl to Los Angeles flights
Pierre Elliott Trudeau Intl to San Diego flights
Ottawa to Las Vegas flights
Hamilton to San Francisco flights
Region of Waterloo Intl to San Francisco flights
Hamilton to Los Angeles flights
Pearson Intl to Palm Springs flights
Pierre Elliott Trudeau Intl to Ontario flights
Pearson Intl to San Jose flights
Toronto Island to San Diego flights
Pearson Intl to Santa Ana flights
Pearson Intl to Fresno flights
Hamilton to San Diego flights
Ottawa to Los Angeles flights
Ottawa to San Francisco flights
Pearson Intl to Oakland flights
London to San Francisco flights
London to Las Vegas flights
Pearson Intl to Burbank flights
Ottawa to Sacramento flights
Pierre Elliott Trudeau Intl to San Jose flights
Sudbury to Las Vegas flights
Pierre Elliott Trudeau Intl to Santa Ana flights
Pearson Intl to Reno flights
Windsor to Las Vegas flights
Pearson Intl to Santa Barbara flights
Region of Waterloo Intl to San Diego flights
London to Los Angeles flights
Pierre Elliott Trudeau Intl to Sacramento flights
Hamilton to San Jose flights
Region of Waterloo Intl to San Jose flights
Hamilton to Santa Ana flights
London to San Jose flights

Top 3 airlines flying from Ottawa to San Diego

Discover the top 3 airlines that operate flights from Ottawa to San Diego. 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 30 March 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 361AverageC$ 666FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
WestJetCheapestC$ 391AverageC$ 444FlexibilityNo cancel feeOn-time60%
Search WestJet flights
United AirlinesCheapestC$ 398AverageC$ 557FlexibilityNo cancel feeOn-time69%
Search United Airlines 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 Diego?

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 San Diego from Ottawa today with Cheapflights!

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

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Ottawa to San Diego, users can toggle the no change fees filter when performing a flight search.

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

Yes, Cheapflights offers price alerts on Ottawa to San Diego 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.

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.