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Cheap flights from Ottawa to San Diego from C$ 275

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 18/3. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — SAN
27 Feb — 6 Mar1
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 28 January 2026.

Tue 10/310:35 a.m.
YOW
-
SAN
1 stop30h 56m
Multiple Airlines
Mon 16/33:07 p.m.
SAN
-
YOW
2 stops30h 32m
Multiple Airlines
Deal found 27/1C$ 554
Tue 10/35:40 a.m.
YOW
-
SAN
2 stops33h 07m
WestJet
Mon 16/312:35 p.m.
SAN
-
YOW
2 stops33h 04m
WestJet
Deal found 27/1C$ 558
Sat 23/55:00 a.m.
YOW
-
SAN
1 stop9h 50m
Air Canada
Wed 27/58:15 a.m.
SAN
-
YOW
1 stop9h 30m
Air Canada
Deal found 25/1C$ 622
Sun 5/46:25 a.m.
YOW
-
SAN
1 stop8h 00m
United Airlines
Wed 15/46:20 p.m.
SAN
-
YOW
2 stops11h 51m
United Airlines
Deal found 26/1C$ 629
Tue 8/92:25 p.m.
YOW
-
SAN
1 stop8h 18m
Air Canada
Tue 15/96:15 a.m.
SAN
-
YOW
1 stop11h 34m
Air Canada
Deal found 27/1C$ 634
Sat 20/67:00 a.m.
YOW
-
SAN
1 stop7h 40m
Air Canada
Mon 22/612:30 p.m.
SAN
-
YOW
1 stop16h 45m
Air Canada
Deal found 27/1C$ 686
Sun 5/46:45 a.m.
YOW
-
SAN
2 stops17h 58m
American Airlines
Wed 15/43:07 p.m.
SAN
-
YOW
2 stops22h 44m
American Airlines
Deal found 26/1C$ 707
Sat 23/510:35 a.m.
YOW
-
SAN
2 stops16h 09m
United Airlines
Wed 27/58:50 p.m.
SAN
-
YOW
2 stops13h 55m
United Airlines
Deal found 25/1C$ 708

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 28 January 2026.

Round-trip from

C$ 554

One-way from

C$ 275

Popular in

October

Cheapest in

May

Average price

C$ 603
10/3-16/3
  • 10/3-16/3
  • 3 total stops
  • 61h 28m total
  • Ottawa to San Diego
Search Deals
18/3
  • 18/3
  • 3 total stops
  • 38h 58m total
  • Ottawa to San Diego
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (C$ 86 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 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 28 January 2026.
Use the filters below to find and compare flights from Ottawa to San Diego that are best for you.

Fly from

Ottawa

Fly to

San Diego

Route

Depart

Return

Price

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Tue 10/3

10:35 a.m.-2:31 p.m.

1 stop30h 56m

San Diego

Mon 16/3

3:07 p.m.-12:39 a.m.

2 stops30h 32m

C$ 554

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Tue 10/3

5:40 a.m.-11:47 a.m.

2 stops33h 07m

San Diego

Mon 16/3

12:35 p.m.-12:39 a.m.

2 stops33h 04m

C$ 558

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Sun 5/4

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

1 stop8h 00m

San Diego

Wed 15/4

6:20 a.m.-5:07 p.m.

1 stop7h 47m

C$ 629

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Sat 23/5

10:35 a.m.-3:30 p.m.

1 stop7h 55m

San Diego

Wed 27/5

8:50 p.m.-1:45 p.m.

2 stops13h 55m

C$ 629

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Wed 13/5

6:25 a.m.-8:03 p.m.

2 stops16h 38m

San Diego

Wed 27/5

7:44 p.m.-1:45 p.m.

2 stops15h 01m

C$ 640

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Wed 1/4

10:44 a.m.-6:51 p.m.

1 stop11h 07m

San Diego

Wed 8/4

6:20 p.m.-9:11 a.m.

2 stops11h 51m

C$ 640

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Wed 18/3

5:40 a.m.-5:38 p.m.

3 stops38h 58m

C$ 275

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Sun 26/4

5:55 a.m.-5:40 p.m.

2 stops38h 45m

C$ 276

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Sun 26/4

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

2 stops22h 55m

C$ 303

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Sun 22/3

5:40 a.m.-2:05 p.m.

3 stops59h 25m

C$ 309

Flights are sorted by cheapest round-trip flights first.

Deals found on 26/1

Showing 1-10 of 13 results
1
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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 23 January 2026.

To ensure you get the cheapest price possible for a flight from Ottawa to San Diego, you should look to book at least 18 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$ 179). Flying from Ottawa to San Diego in December is currently the most expensive (average of C$ 364). 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.

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 28 January 2026.
See what other customers who have flown with Porter Airlines,United Airlines, andWestJet 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.
Porter Airlines
7.9
Good
412 reviews
Check prices

Comfort

7.9

Entertainment

6.9

Overall

7.9

Crew

8.6

Food

7.5

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
Porter Airlines
7.9
Good
412 reviews
Porter Airlines
7.9
Good
412 reviews
Check prices

Comfort

7.9

Entertainment

6.9

Overall

7.9

Crew

8.6

Food

7.5

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
United Airlines
7.4
Good
9,208 reviews
Porter Airlines
7.9
Good
412 reviews
Check prices

Comfort

7.9

Entertainment

6.9

Overall

7.9

Crew

8.6

Food

7.5

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
WestJet
7.2
Good
3,251 reviews
Porter Airlines
7.9
Good
412 reviews
Check prices

Comfort

7.9

Entertainment

6.9

Overall

7.9

Crew

8.6

Food

7.5

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
Air Canada
7.1
Good
10,666 reviews
Porter Airlines
7.9
Good
412 reviews
Check prices

Comfort

7.9

Entertainment

6.9

Overall

7.9

Crew

8.6

Food

7.5

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

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 8h. 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$ 243, United Airlines will fly you from Ottawa to San Diego and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Porter Airlines and WestJet - these airlines can fly you to your destination from C$ 332 and C$ 344, respectively. United Airlines is currently priced 56% 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$ 179). Flying from Ottawa to San Diego in December is currently the most expensive (average of C$ 364). 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

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Alternative routes for Ottawa to San Diego

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Ottawa to San Diego

Discover the top 4 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 28 January 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 243AverageC$ 530FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Porter AirlinesCheapestC$ 332AverageC$ 481FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
WestJetCheapestC$ 344AverageC$ 437FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air CanadaCheapestC$ 347AverageC$ 651FlexibilityNo cancel feeOn-time67%
Search Air Canada 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.

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