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Cheap flights from Ottawa to San Diego from C$ 295

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 16/9. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — SAN
27 Jul — 3 Aug1
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 27 June 2026.

Wed 21/103:10 p.m.
YOW
-
SAN
1 stop10h 09m
United Airlines
Sat 24/107:00 a.m.
SAN
-
YOW
2 stops11h 35m
United Airlines
Deal found 22/6C$ 575
Mon 19/106:00 a.m.
YOW
-
SAN
1 stop17h 29m
United Airlines
Fri 23/106:50 p.m.
SAN
-
YOW
2 stops11h 21m
United Airlines
Deal found 24/6C$ 583
Fri 18/97:20 a.m.
YOW
-
SAN
1 stop9h 50m
WestJet
Sat 26/93:30 p.m.
SAN
-
YOW
1 stop11h 05m
WestJet
Deal found 23/6C$ 600
Tue 21/76:00 a.m.
YOW
-
SAN
2 stops35h 08m
Multiple Airlines
Tue 28/78:52 p.m.
SAN
-
YOW
1 stop17h 11m
Multiple Airlines
Deal found 26/6C$ 626
Fri 18/96:05 a.m.
YOW
-
SAN
1 stop16h 48m
United Airlines
Sat 26/912:40 p.m.
SAN
-
YOW
3 stops17h 31m
United Airlines
Deal found 23/6C$ 644
Sun 23/81:20 p.m.
YOW
-
SAN
2 stops37h 24m
Multiple Airlines
Mon 31/88:59 p.m.
SAN
-
YOW
1 stop17h 24m
Multiple Airlines
Deal found 23/6C$ 670
Sun 23/81:20 p.m.
YOW
-
SAN
2 stops37h 24m
Multiple Airlines
Tue 1/93:30 p.m.
SAN
-
YOW
1 stop11h 05m
Multiple Airlines
Deal found 23/6C$ 673
Fri 4/127:25 p.m.
YOW
-
SAN
2 stops17h 30m
United Airlines
Thu 10/126:30 p.m.
SAN
-
YOW
2 stops11h 41m
United Airlines
Deal found 24/6C$ 675
Mon 24/87:20 a.m.
YOW
-
SAN
1 stop9h 50m
WestJet
Tue 1/93:30 p.m.
SAN
-
YOW
1 stop11h 05m
WestJet
Deal found 23/6C$ 682

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 27 June 2026.

Round-trip from

C$ 572

One-way from

C$ 291

Popular in

October

Cheapest in

November

Average price

C$ 799
WestJet
  • WestJet
  • 2/10-2/11
  • 2 total stops
  • 34h 05m total
  • Ottawa to San Diego
Search Deals
WestJet
  • WestJet
  • 16/9
  • 1 total stop
  • 9h 50m total
  • Ottawa to San Diego
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (C$ 72 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 39 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 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 27 June 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

Mon 19/10

6:01 p.m.-9:49 a.m.

1 stop18h 48m

San Diego

Fri 23/10

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

1 stop8h 51m

C$ 583

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Fri 18/9

6:05 a.m.-7:53 p.m.

1 stop16h 48m

San Diego

Sat 26/9

12:40 p.m.-9:11 a.m.

3 stops17h 31m

C$ 644
Quickest round-trip

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Wed 21/10

3:10 p.m.-10:19 p.m.

1 stop10h 09m

San Diego

Sat 24/10

6:40 a.m.-9:35 p.m.

1 stop11h 55m

C$ 654

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Wed 14/10

6:00 a.m.-9:24 p.m.

2 stops18h 24m

San Diego

Sun 18/10

5:00 p.m.-9:56 a.m.

2 stops13h 56m

C$ 654

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Fri 4/12

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

2 stops19h 35m

San Diego

Thu 10/12

10:30 p.m.-1:26 p.m.

1 stop11h 56m

C$ 675

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Mon 24/8

4:15 p.m.-2:10 p.m.

1 stop24h 55m

San Diego

Mon 31/8

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

1 stop11h 05m

C$ 685

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Thu 12/11

6:00 a.m.-3:49 p.m.

2 stops12h 49m

San Diego

Mon 16/11

3:04 p.m.-3:07 p.m.

2 stops21h 03m

C$ 690
Cheapest one-way

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Wed 16/9

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

1 stop9h 50m

C$ 295

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Wed 16/9

1:20 p.m.-12:25 p.m.

2 stops26h 05m

C$ 304

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Thu 1/10

6:25 a.m.-5:26 p.m.

2 stops14h 01m

C$ 332

Flights are sorted by cheapest round-trip flights first.

Deals found on 26/6

Showing 1-10 of 15 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?

To ensure you get the cheapest price possible for a flight from Ottawa to San Diego, you should look to book at least 52 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, November is the cheapest month in which you can book a flight from Ottawa to San Diego (average of C$ 583). Flying from Ottawa to San Diego in October is currently the most expensive (average of C$ 1,003). 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 27 June 2026.
See what other customers who have flown with United Airlines and Air 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
9,896 reviews
Check prices

Boarding

7.7

Entertainment

7.1

Overall

7.4

Comfort

7.3

Crew

8.1

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

YVR - SFO

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.
United Airlines
7.4
Good
9,896 reviews
United Airlines
7.4
Good
9,896 reviews
Check prices

Boarding

7.7

Entertainment

7.1

Overall

7.4

Comfort

7.3

Crew

8.1

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

YVR - SFO

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.
Air Canada
7.1
Good
11,269 reviews
United Airlines
7.4
Good
9,896 reviews
Check prices

Boarding

7.7

Entertainment

7.1

Overall

7.4

Comfort

7.3

Crew

8.1

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

YVR - SFO

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.

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 18h 48m. 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$ 406, 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. Check Cheapflights for deals on United Airlines for as low as C$ 448. Air Canada 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, November is the cheapest month in which you can book a flight from Ottawa to San Diego (average of C$ 583). Flying from Ottawa to San Diego in October is currently the most expensive (average of C$ 1,003). 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

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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 2 airlines flying from Ottawa to San Diego

Discover the top 2 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 27 June 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 406AverageC$ 765FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 448AverageC$ 643FlexibilityNo 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.

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