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Cheap flights from Ottawa to San Diego from C$ 234

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 1/10. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — SAN
11 Oct — 18 Oct1
1 adult
1 adult, Economy

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

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 11 September 2025.

Round-trip from

C$ 413

One-way from

C$ 234

Popular in

October

Cheapest in

May

Average price

C$ 665
Air Canada
  • Air Canada
  • 25/11-2/12
  • 2 total stops
  • 18h 56m total
  • Ottawa to San Diego
Search Deals
1/10
  • 1/10
  • 3 total stops
  • 20h 39m total
  • Ottawa to San Diego
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (C$ 38 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 September 2025
Search Deals

Find flight deals from Ottawa to San Diego

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 11 September 2025.

Tue 25/115:15 a.m.YOW - SAN
1 stop9h 23mAir Canada
Tue 2/126:10 p.m.SAN - YOW
1 stop9h 33mAir Canada
Deal found 9/9C$ 413
Sat 1/112:15 p.m.YOW - SAN
1 stop9h 18mUnited Airlines
Sat 15/1110:30 p.m.SAN - YOW
1 stop8h 56mUnited Airlines
Deal found 9/9C$ 428
Tue 25/1111:10 a.m.YOW - SAN
1 stop10h 40mUnited Airlines
Tue 2/128:00 p.m.SAN - YOW
2 stops11h 26mUnited Airlines
Deal found 9/9C$ 438
Thu 25/125:09 p.m.YOW - SAN
2 stops20h 21mUnited Airlines
Thu 1/17:40 a.m.SAN - YOW
2 stops10h 38mUnited Airlines
Deal found 9/9C$ 528
Fri 17/104:25 p.m.YOW - SAN
1 stop29h 21mMultiple Airlines
Thu 23/108:11 a.m.SAN - YOW
2 stops13h 29mMultiple Airlines
Deal found 10/9C$ 532
Thu 9/102:48 p.m.YOW - SAN
1 stop9h 36mUnited Airlines
Mon 13/108:39 p.m.SAN - YOW
2 stops12h 06mUnited Airlines
Deal found 11/9C$ 545
Fri 17/106:33 a.m.YOW - SAN
1 stop18h 41mUnited Airlines
Fri 24/106:00 p.m.SAN - YOW
3 stops20h 06mUnited Airlines
Deal found 10/9C$ 546
Wed 15/1010:37 a.m.YOW - SAN
2 stops16h 04mUnited Airlines
Thu 23/1010:30 p.m.SAN - YOW
1 stop10h 15mUnited Airlines
Deal found 9/9C$ 554

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 11 September 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

Sat 22/11

3:10 p.m.-11:44 p.m.

2 stops11h 34m

San Diego

Tue 2/12

8:00 p.m.-10:26 a.m.

2 stops11h 26m

C$ 428

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Sat 1/11

9:45 a.m.-5:28 p.m.

2 stops10h 43m

San Diego

Sat 15/11

6:45 a.m.-9:18 p.m.

2 stops11h 33m

C$ 428

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Tue 25/11

11:10 a.m.-6:50 p.m.

1 stop10h 40m

San Diego

Tue 2/12

8:00 p.m.-10:26 a.m.

2 stops11h 26m

C$ 438

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Wed 21/1

9:45 a.m.-6:36 p.m.

2 stops11h 51m

San Diego

Sat 31/1

8:37 p.m.-5:12 p.m.

2 stops17h 35m

C$ 500

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Thu 22/1

6:20 a.m.-2:52 p.m.

2 stops11h 32m

San Diego

Sat 31/1

8:00 a.m.-9:18 p.m.

2 stops10h 18m

C$ 500

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Wed 1/10

5:55 a.m.-11:34 p.m.

3 stops20h 39m

C$ 234

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Wed 22/10

5:55 a.m.-9:20 p.m.

3 stops18h 25m

C$ 251

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Wed 1/10

2:45 p.m.-12:15 a.m.

2 stops12h 30m

C$ 252

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Mon 20/10

6:00 a.m.-9:20 p.m.

3 stops42h 20m

C$ 259

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Tue 21/10

12:20 p.m.-1:26 p.m.

3 stops28h 06m

C$ 269

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/9

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 29 August 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, May is the cheapest month in which you can book a flight from Ottawa to San Diego (average of C$ 289). Flying from Ottawa to San Diego in November is currently the most expensive (average of C$ 390). 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 11 September 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 17% on airfare.

What is the cheapest day to fly from Ottawa to San Diego?

Use this chart to determine the cheapest time to fly round-trip from Ottawa to San Diego. Price data was last updated on 16 December 2024.

Travelers seeking maximum savings on their Ottawa to San Diego flight should consider departing on Sunday evenings when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 11 September 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
7.9
Good
363 reviews
Check prices

Entertainment

7.0

Crew

8.6

Boarding

8.1

Comfort

7.9

Overall

7.9

Food

7.6

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
7.9
Good
363 reviews
Porter Airlines
7.9
Good
363 reviews
Check prices

Entertainment

7.0

Crew

8.6

Boarding

8.1

Comfort

7.9

Overall

7.9

Food

7.6

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
8,937 reviews
Porter Airlines
7.9
Good
363 reviews
Check prices

Entertainment

7.0

Crew

8.6

Boarding

8.1

Comfort

7.9

Overall

7.9

Food

7.6

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
3,091 reviews
Porter Airlines
7.9
Good
363 reviews
Check prices

Entertainment

7.0

Crew

8.6

Boarding

8.1

Comfort

7.9

Overall

7.9

Food

7.6

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
10,000 reviews
Porter Airlines
7.9
Good
363 reviews
Check prices

Entertainment

7.0

Crew

8.6

Boarding

8.1

Comfort

7.9

Overall

7.9

Food

7.6

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 11h 34m. 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$ 335, 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$ 358 and C$ 359, respectively. Porter Airlines 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, May is the cheapest month in which you can book a flight from Ottawa to San Diego (average of C$ 289). Flying from Ottawa to San Diego in November is currently the most expensive (average of C$ 390). 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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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 11 September 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapestC$ 335AverageC$ 543FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
United AirlinesCheapestC$ 358AverageC$ 548FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 359AverageC$ 669FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
WestJetCheapestC$ 389AverageC$ 443FlexibilityNo 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?

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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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