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Cheap flights from Ottawa to San Diego from C$ 304

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 26/4. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — SAN
9 Apr — 16 Apr1
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 10 March 2026.

Sat 23/57:20 a.m.
YOW
-
SAN
1 stop9h 50m
WestJet
Wed 27/53:30 p.m.
SAN
-
YOW
1 stop11h 05m
WestJet
Deal found 5/3C$ 486
Tue 14/410:00 a.m.
YOW
-
SAN
2 stops10h 16m
United Airlines
Wed 15/46:15 a.m.
SAN
-
YOW
2 stops12h 50m
United Airlines
Deal found 5/3C$ 493
Sat 23/510:00 a.m.
YOW
-
SAN
2 stops12h 50m
United Airlines
Wed 27/56:20 a.m.
SAN
-
YOW
2 stops12h 15m
United Airlines
Deal found 5/3C$ 494
Wed 8/410:44 a.m.
YOW
-
SAN
2 stops13h 38m
United Airlines
Fri 10/410:30 p.m.
SAN
-
YOW
1 stop12h 29m
United Airlines
Deal found 5/3C$ 506
Wed 8/410:44 a.m.
YOW
-
SAN
2 stops13h 38m
United Airlines
Thu 9/47:14 p.m.
SAN
-
YOW
2 stops10h 57m
United Airlines
Deal found 5/3C$ 513
Mon 6/45:25 p.m.
YOW
-
SAN
1 stop8h 34m
United Airlines
Fri 10/410:30 p.m.
SAN
-
YOW
1 stop12h 29m
United Airlines
Deal found 6/3C$ 526
Mon 13/43:10 p.m.
YOW
-
SAN
2 stops11h 49m
United Airlines
Thu 30/47:00 p.m.
SAN
-
YOW
2 stops11h 11m
United Airlines
Deal found 7/3C$ 528
Mon 11/55:25 p.m.
YOW
-
SAN
1 stop8h 14m
United Airlines
Fri 15/510:40 p.m.
SAN
-
YOW
1 stop15h 27m
United Airlines
Deal found 8/3C$ 529
Wed 3/66:25 a.m.
YOW
-
SAN
1 stop15h 05m
United Airlines
Sat 6/610:40 p.m.
SAN
-
YOW
1 stop12h 19m
United Airlines
Deal found 9/3C$ 540
Wed 1/45:25 p.m.
YOW
-
SAN
1 stop8h 34m
United Airlines
Wed 8/46:20 a.m.
SAN
-
YOW
1 stop7h 47m
United Airlines
Deal found 5/3C$ 541
Mon 6/45:25 p.m.
YOW
-
SAN
1 stop8h 34m
United Airlines
Thu 9/410:52 a.m.
SAN
-
YOW
1 stop7h 43m
United Airlines
Deal found 5/3C$ 544

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 10 March 2026.

Round-trip from

C$ 486

One-way from

C$ 304

Popular in

October

Cheapest in

May

Average price

C$ 651
WestJet
  • WestJet
  • 23/5-27/5
  • 2 total stops
  • 20h 55m total
  • Ottawa to San Diego
Search Deals
United Airlines
  • United Airlines
  • 26/4
  • 2 total stops
  • 11h 49m total
  • Ottawa to San Diego
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (C$ 155 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (C$ 44 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 10 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

Tue 14/4

2:40 p.m.-8:46 p.m.

1 stop9h 06m

San Diego

Wed 15/4

9:45 p.m.-2:22 p.m.

1 stop13h 37m

C$ 493

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Sat 23/5

6:25 a.m.-3:27 p.m.

1 stop12h 02m

San Diego

Wed 27/5

8:32 p.m.-10:03 a.m.

2 stops10h 31m

C$ 494

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Mon 11/5

3:10 p.m.-11:59 p.m.

2 stops11h 49m

San Diego

Fri 15/5

6:05 p.m.-1:59 p.m.

2 stops16h 54m

C$ 526
Quickest round-trip

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Wed 15/4

5:25 p.m.-10:59 p.m.

1 stop8h 34m

San Diego

Mon 27/4

10:30 p.m.-1:59 p.m.

1 stop12h 29m

C$ 528

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Wed 3/6

10:44 a.m.-8:46 p.m.

2 stops13h 02m

San Diego

Sat 6/6

9:05 p.m.-9:11 a.m.

1 stop9h 06m

C$ 531

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Wed 8/4

5:25 p.m.-10:59 p.m.

1 stop8h 34m

San Diego

Thu 9/4

8:00 a.m.-11:54 p.m.

1 stop12h 54m

C$ 544
Cheapest one-way
Quickest one-way

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Sun 26/4

6:00 a.m.-11:16 a.m.

1 stop8h 16m

C$ 304

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Mon 4/5

2:40 p.m.-10:16 p.m.

2 stops10h 36m

C$ 304

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Fri 1/5

6:25 a.m.-6:41 p.m.

1 stop15h 16m

C$ 304

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Wed 22/4

2:40 p.m.-8:46 p.m.

1 stop9h 06m

C$ 307

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/3

Showing 1-10 of 13 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 6 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$ 178). Flying from Ottawa to San Diego in December is currently the most expensive (average of C$ 415). 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 10 March 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
8.0
Very good
423 reviews
Check prices

Food

7.6

Overall

8.0

Comfort

8.0

Boarding

8.2

Crew

8.6

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
Porter Airlines
8.0
Very good
423 reviews
Porter Airlines
8.0
Very good
423 reviews
Check prices

Food

7.6

Overall

8.0

Comfort

8.0

Boarding

8.2

Crew

8.6

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
United Airlines
7.4
Good
9,409 reviews
Porter Airlines
8.0
Very good
423 reviews
Check prices

Food

7.6

Overall

8.0

Comfort

8.0

Boarding

8.2

Crew

8.6

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
WestJet
7.2
Good
3,288 reviews
Porter Airlines
8.0
Very good
423 reviews
Check prices

Food

7.6

Overall

8.0

Comfort

8.0

Boarding

8.2

Crew

8.6

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
Air Canada
7.1
Good
10,800 reviews
Porter Airlines
8.0
Very good
423 reviews
Check prices

Food

7.6

Overall

8.0

Comfort

8.0

Boarding

8.2

Crew

8.6

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.

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 9h 06m. The distance between Ottawa and San Diego is about 3798 km.

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

    Currently priced at C$ 191, Porter Airlines will fly you from Ottawa to San Diego and back. In addition to Porter Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and Air Canada - these airlines can fly you to your destination from C$ 350 and C$ 353, respectively. Porter Airlines is currently priced 68% 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$ 178). Flying from Ottawa to San Diego in December is currently the most expensive (average of C$ 415). 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 10 March 2026.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapestC$ 191AverageC$ 492FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
United AirlinesCheapestC$ 350AverageC$ 545FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 353AverageC$ 649FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
WestJetCheapestC$ 382AverageC$ 434FlexibilityNo cancel feeOn-time60%
Search WestJet 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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