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Cheap flights from Ottawa to San Diego from C$ 277

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 1/12. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — SAN
12 Nov — 19 Nov1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from Ottawa to San Diego are usually found in May or June, booked 18 days in advance, depart on a Monday or Wednesday and return on a Tuesday

Find 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 13 October 2025.

Fri 5/127:15 p.m.YOW - SAN
2 stops43h 30mWestJet
Fri 12/1212:35 p.m.SAN - YOW
1 stop9h 05mWestJet
Deal found 12/10C$ 490
Tue 4/115:40 a.m.YOW - SAN
2 stops15h 20mDelta
Tue 11/1111:02 a.m.SAN - YOW
2 stops10h 40mDelta
Deal found 11/10C$ 539
Wed 26/115:40 a.m.YOW - SAN
2 stops12h 47mMultiple Airlines
Mon 1/1212:35 p.m.SAN - YOW
1 stop9h 05mMultiple Airlines
Deal found 12/10C$ 579
Fri 5/126:00 a.m.YOW - SAN
1 stop8h 53mAir Canada
Fri 12/126:10 p.m.SAN - YOW
1 stop9h 33mAir Canada
Deal found 12/10C$ 586
Tue 11/112:15 p.m.YOW - SAN
2 stops12h 58mUnited Airlines
Tue 18/118:40 p.m.SAN - YOW
2 stops10h 46mUnited Airlines
Deal found 12/10C$ 589
Tue 25/115:40 a.m.YOW - SAN
2 stops15h 50mDelta
Tue 2/128:00 a.m.SAN - YOW
2 stops13h 42mDelta
Deal found 13/10C$ 593
Tue 25/116:20 a.m.YOW - SAN
1 stop19h 00mUnited Airlines
Tue 2/129:55 p.m.SAN - YOW
1 stop13h 32mUnited Airlines
Deal found 13/10C$ 597
Wed 26/115:40 a.m.YOW - SAN
2 stops15h 50mDelta
Sun 30/117:59 p.m.SAN - YOW
2 stops25h 41mDelta
Deal found 12/10C$ 646
Tue 4/119:25 a.m.YOW - SAN
1 stop15h 04mMultiple Airlines
Tue 11/117:59 p.m.SAN - YOW
2 stops39h 02mMultiple Airlines
Deal found 11/10C$ 656
Sat 8/115:00 a.m.YOW - SAN
2 stops19h 07mUnited Airlines
Sat 15/115:55 p.m.SAN - YOW
2 stops13h 31mUnited Airlines
Deal found 11/10C$ 671

Cheap 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 13 October 2025.

Round-trip from

C$ 397

One-way from

C$ 308

Popular in

October

Cheapest in

May

Average price

C$ 814
WestJet
  • WestJet
  • 15/1-21/1
  • 2 total stops
  • 30h 05m total
  • Ottawa to San Diego
Search Deals
Delta
  • Delta
  • 26/11
  • 2 total stops
  • 15h 50m total
  • Ottawa to San Diego
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (C$ 123 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 29 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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 13 October 2025.
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

Thu 15/1

5:40 a.m.-11:45 a.m.

2 stops33h 05m

San Diego

Wed 21/1

12:35 p.m.-12:40 a.m.

1 stop9h 05m

C$ 437

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Tue 4/11

5:40 a.m.-6:00 p.m.

2 stops15h 20m

San Diego

Tue 11/11

11:02 a.m.-12:42 a.m.

2 stops10h 40m

C$ 539

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Fri 5/12

7:15 p.m.-11:45 a.m.

2 stops43h 30m

San Diego

Fri 12/12

12:35 p.m.-12:42 a.m.

2 stops33h 07m

C$ 539

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Tue 11/11

5:40 a.m.-6:30 p.m.

2 stops15h 50m

San Diego

Tue 18/11

8:00 a.m.-12:42 a.m.

2 stops13h 42m

C$ 539

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Tue 24/2

7:30 p.m.-2:15 p.m.

2 stops21h 45m

San Diego

Wed 25/2

5:00 p.m.-10:26 a.m.

1 stop14h 26m

C$ 582

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Wed 1/4

5:40 a.m.-6:03 p.m.

2 stops15h 23m

San Diego

Wed 8/4

12:35 p.m.-12:40 a.m.

1 stop9h 05m

C$ 583

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Mon 1/12

7:15 p.m.-9:57 a.m.

3 stops41h 42m

C$ 277

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Wed 26/11

5:40 a.m.-6:30 p.m.

2 stops15h 50m

C$ 308

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Mon 27/10

5:40 a.m.-6:00 p.m.

2 stops15h 20m

C$ 308

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Sun 16/11

6:45 p.m.-11:45 a.m.

2 stops20h 00m

C$ 315

Flights are sorted by cheapest round-trip flights first.

Deals found on 13/10

Showing 1-10 of 15 results
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 10 October 2025.

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$ 184). Flying from Ottawa to San Diego in September is currently the most expensive (average of C$ 360). 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 SAN?

Find hourly flight availability from Ottawa to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 13 October 2025.

One of the essential ways to save on airfare from Ottawa to San Diego is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the afternoon could potentially save you up to 16% on airfare.

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 13 October 2025.
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
379 reviews
Check prices

Comfort

8.0

Overall

8.0

Food

7.6

Entertainment

7.0

Crew

8.6

Boarding

8.2

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
379 reviews
Porter Airlines
8.0
Very good
379 reviews
Check prices

Comfort

8.0

Overall

8.0

Food

7.6

Entertainment

7.0

Crew

8.6

Boarding

8.2

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.
United Airlines
7.4
Good
8,975 reviews
Porter Airlines
8.0
Very good
379 reviews
Check prices

Comfort

8.0

Overall

8.0

Food

7.6

Entertainment

7.0

Crew

8.6

Boarding

8.2

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.
WestJet
7.2
Good
3,124 reviews
Porter Airlines
8.0
Very good
379 reviews
Check prices

Comfort

8.0

Overall

8.0

Food

7.6

Entertainment

7.0

Crew

8.6

Boarding

8.2

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.
Air Canada
7.1
Good
10,291 reviews
Porter Airlines
8.0
Very good
379 reviews
Check prices

Comfort

8.0

Overall

8.0

Food

7.6

Entertainment

7.0

Crew

8.6

Boarding

8.2

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.

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 20m. 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$ 339, 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 WestJet and United Airlines - these airlines can fly you to your destination from C$ 353 and C$ 362, respectively. Porter Airlines is currently priced 43% 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$ 184). Flying from Ottawa to San Diego in September is currently the most expensive (average of C$ 360). 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
Borrego Springs
El Cajon

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Alternative routes for Ottawa to San Diego

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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 13 October 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapestC$ 339AverageC$ 515FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
WestJetCheapestC$ 353AverageC$ 441FlexibilityNo cancel feeOn-time60%
Search WestJet flights
United AirlinesCheapestC$ 362AverageC$ 540FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 364AverageC$ 665FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

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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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