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Cheap flights from Ottawa to San Diego from C$ 251

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 29/7. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — SAN
8 Jul — 15 Jul1
1 adult

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 3 July 2025.

Round-trip from

C$ 386

One-way from

C$ 251

Popular in

July

Cheapest in

May

Average price

C$ 675
WestJet
  • WestJet
  • 14/8-17/8
  • 2 total stops
  • 20h 46m total
  • Ottawa to San Diego
Search Deals
WestJet
  • WestJet
  • 29/7
  • 1 total stop
  • 10h 20m total
  • Ottawa to San Diego
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (C$ 10 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
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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 3 July 2025.

Wed 9/76:00 a.m.YOW - SAN
1 stop10h 20mWestJet
Sun 13/711:15 a.m.SAN - YOW
1 stop10h 26mWestJet
Deal found 30/6C$ 380
Fri 15/86:33 a.m.YOW - SAN
1 stop12h 55mUnited Airlines
Sun 17/810:20 p.m.SAN - YOW
1 stop15h 46mUnited Airlines
Deal found 2/7C$ 437
Mon 7/79:55 p.m.YOW - SAN
1 stop17h 02mAir Canada
Mon 14/75:00 p.m.SAN - YOW
1 stop12h 19mAir Canada
Deal found 30/6C$ 470
Tue 29/76:00 a.m.YOW - SAN
1 stop10h 20mMultiple Airlines
Wed 30/77:04 p.m.SAN - YOW
2 stops12h 17mMultiple Airlines
Deal found 30/6C$ 499

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 3 July 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 14/8

6:00 a.m.-1:20 p.m.

1 stop10h 20m

San Diego

Sun 17/8

11:15 a.m.-12:41 a.m.

1 stop10h 26m

C$ 386

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Fri 15/8

6:33 a.m.-4:28 p.m.

1 stop12h 55m

San Diego

Sun 17/8

10:20 p.m.-5:06 p.m.

1 stop15h 46m

C$ 437

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Mon 28/7

9:55 p.m.-11:57 a.m.

1 stop17h 02m

San Diego

Wed 6/8

5:00 p.m.-9:15 a.m.

2 stops13h 15m

C$ 485

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Tue 29/7

6:00 a.m.-1:20 p.m.

1 stop10h 20m

San Diego

Wed 30/7

7:04 p.m.-10:21 a.m.

2 stops12h 17m

C$ 499

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Tue 29/7

6:00 a.m.-1:20 p.m.

1 stop10h 20m

C$ 251

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Wed 30/7

6:10 a.m.-11:06 p.m.

3 stops19h 56m

C$ 255

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Tue 29/7

6:33 a.m.-5:32 p.m.

2 stops13h 59m

C$ 258

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Fri 28/11

6:00 a.m.-11:18 a.m.

1 stop8h 18m

C$ 266

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/7

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 27 June 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 September 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 3 July 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 3 July 2025.
See what other customers who have flown with United Airlines,WestJet, andAir 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
8,861 reviews
Check prices

Boarding

7.7

Crew

8.1

Overall

7.4

Entertainment

7.0

Comfort

7.3

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.
United Airlines
7.4
Good
8,861 reviews
United Airlines
7.4
Good
8,861 reviews
Check prices

Boarding

7.7

Crew

8.1

Overall

7.4

Entertainment

7.0

Comfort

7.3

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.
WestJet
7.2
Good
2,917 reviews
United Airlines
7.4
Good
8,861 reviews
Check prices

Boarding

7.7

Crew

8.1

Overall

7.4

Entertainment

7.0

Comfort

7.3

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.
Air Canada
7.1
Good
9,681 reviews
United Airlines
7.4
Good
8,861 reviews
Check prices

Boarding

7.7

Crew

8.1

Overall

7.4

Entertainment

7.0

Comfort

7.3

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.

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.

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

    Currently priced at C$ 386, WestJet will fly you from Ottawa to San Diego and back. In addition to WestJet, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on United Airlines for as low as C$ 437. WestJet is currently priced 34% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Ottawa to San Diego one-way?

    One-way options have recently been found by users for as low as C$ 251 on WestJet. Other airlines that offer cheap prices include United Airlines from C$ 258 and Air Canada from C$ 266 one-way.

  • 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 September 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 Ottawa?

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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 3 July 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapestC$ 330AverageC$ 534FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
United AirlinesCheapestC$ 352AverageC$ 617FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 354AverageC$ 656FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
WestJetCheapestC$ 382AverageC$ 457FlexibilityNo 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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