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Cheap flights from Ottawa to San Diego from C$ 280

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 26/9. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — SAN
9 Jul — 16 Jul1
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 9 June 2026.

Tue 8/97:20 a.m.
YOW
-
SAN
1 stop9h 50m
WestJet
Tue 15/93:30 p.m.
SAN
-
YOW
1 stop11h 05m
WestJet
Deal found 6/6C$ 570
Tue 4/86:00 a.m.
YOW
-
SAN
1 stop11h 10m
WestJet
Tue 11/83:30 p.m.
SAN
-
YOW
1 stop11h 05m
WestJet
Deal found 7/6C$ 598
Tue 28/76:00 a.m.
YOW
-
SAN
1 stop11h 10m
WestJet
Tue 4/83:30 p.m.
SAN
-
YOW
1 stop11h 05m
WestJet
Deal found 5/6C$ 605
Mon 14/92:35 p.m.
YOW
-
SAN
1 stop9h 01m
Air Canada
Wed 16/97:00 a.m.
SAN
-
YOW
1 stop10h 50m
Air Canada
Deal found 8/6C$ 632
Thu 16/78:15 p.m.
YOW
-
SAN
1 stop20h 55m
WestJet
Mon 20/73:30 p.m.
SAN
-
YOW
1 stop11h 05m
WestJet
Deal found 7/6C$ 633
Mon 14/97:20 a.m.
YOW
-
SAN
1 stop9h 50m
WestJet
Wed 16/93:30 p.m.
SAN
-
YOW
1 stop11h 05m
WestJet
Deal found 4/6C$ 635
Mon 14/97:34 p.m.
YOW
-
SAN
1 stop18h 43m
United Airlines
Wed 16/99:05 p.m.
SAN
-
YOW
1 stop9h 06m
United Airlines
Deal found 7/6C$ 642
Tue 8/96:25 a.m.
YOW
-
SAN
2 stops14h 03m
United Airlines
Tue 15/95:00 p.m.
SAN
-
YOW
2 stops17h 59m
United Airlines
Deal found 6/6C$ 643
Tue 1/126:00 a.m.
YOW
-
SAN
1 stop31h 45m
WestJet
Sun 28/212:35 p.m.
SAN
-
YOW
1 stop24h 15m
WestJet
Deal found 7/6C$ 658
Fri 3/710:44 a.m.
YOW
-
SAN
1 stop14h 50m
Air Canada
Fri 10/710:25 p.m.
SAN
-
YOW
1 stop15h 42m
Air Canada
Deal found 5/6C$ 674

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 9 June 2026.

Round-trip from

C$ 570

One-way from

C$ 280

Popular in

October

Cheapest in

November

Average price

C$ 643
WestJet
  • WestJet
  • 8/9-15/9
  • 2 total stops
  • 20h 55m total
  • Ottawa to San Diego
Search Deals
WestJet
  • WestJet
  • 26/9
  • 1 total stop
  • 9h 50m total
  • Ottawa to San Diego
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (C$ 77 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 36 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 9 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 14/9

7:34 p.m.-11:17 a.m.

1 stop18h 43m

San Diego

Wed 16/9

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

1 stop9h 06m

C$ 642

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Tue 8/9

6:25 a.m.-5:28 p.m.

2 stops14h 03m

San Diego

Tue 15/9

5:00 p.m.-1:59 p.m.

2 stops17h 59m

C$ 643
Quickest round-trip

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Tue 28/7

6:00 a.m.-4:07 p.m.

2 stops13h 07m

San Diego

Tue 4/8

6:27 p.m.-9:11 a.m.

2 stops11h 44m

C$ 724
Cheapest one-way

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Wed 16/9

6:00 a.m.-6:30 p.m.

3 stops15h 30m

C$ 361

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Sat 26/9

6:00 a.m.-2:50 p.m.

2 stops11h 50m

C$ 363

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Sun 27/9

6:00 a.m.-11:25 a.m.

1 stop8h 25m

C$ 363

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Sun 27/9

6:55 a.m.-2:10 p.m.

2 stops34h 15m

C$ 374

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Tue 1/12

7:25 p.m.-9:17 a.m.

2 stops16h 52m

C$ 379
Quickest one-way

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Sat 4/7

6:25 a.m.-11:21 a.m.

1 stop7h 56m

C$ 382

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Sat 4/7

6:05 a.m.-2:55 p.m.

2 stops11h 50m

C$ 403

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/6

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$ 565). Flying from Ottawa to San Diego in October is currently the most expensive (average of C$ 959). 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 9 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
9,796 reviews
Check prices

Comfort

7.3

Food

6.6

Boarding

7.7

Overall

7.4

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
United Airlines
7.4
Good
9,796 reviews
United Airlines
7.4
Good
9,796 reviews
Check prices

Comfort

7.3

Food

6.6

Boarding

7.7

Overall

7.4

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
Air Canada
7.1
Good
11,149 reviews
United Airlines
7.4
Good
9,796 reviews
Check prices

Comfort

7.3

Food

6.6

Boarding

7.7

Overall

7.4

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

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 43m. 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$ 399, 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$ 440. Air Canada is currently priced 41% 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$ 565). Flying from Ottawa to San Diego in October is currently the most expensive (average of C$ 959). 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 9 June 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 399AverageC$ 760FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 440AverageC$ 628FlexibilityNo 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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