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Cheap flights from Ottawa to California from C$ 245

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 3/12. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — LAX
19 Nov — 26 Nov1
1 adult
1 adult, Economy

Cheap flight deals from Ottawa to California

Keep the following information in mind while searching for Ottawa to California flight deals. Data was last updated 20 October 2025.

Round-trip from

C$ 383

One-way from

C$ 244

Popular in

December

Cheapest in

May

Average price

C$ 425
WestJet
  • WestJet
  • 28/11-5/12
  • 3 total stops
  • 23h 00m total
  • Ottawa to California
Search Deals
WestJet
  • WestJet
  • 6/12
  • 2 total stops
  • 17h 15m total
  • Ottawa to California
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (C$ 109 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (C$ 30 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Find flight deals from Ottawa to California

Enter your travel dates to find the best prices.

Cheapest flights from Ottawa to California
Explore the most affordable flight options available from Ottawa to California. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 October 2025.

Fri 28/115:40 a.m.YOW - LAS
1 stop9h 18mWestJet
Fri 5/128:00 a.m.LAS - YOW
2 stops13h 42mWestJet
Deal found 19/10C$ 384
Mon 17/116:00 a.m.YOW - LAS
1 stop15h 11mWestJet
Fri 21/118:00 a.m.LAS - YOW
2 stops13h 42mWestJet
Deal found 19/10C$ 391
Sun 23/116:00 a.m.YOW - LAS
2 stops17h 15mWestJet
Wed 26/118:00 a.m.LAS - YOW
2 stops13h 42mWestJet
Deal found 18/10C$ 392
Tue 2/127:45 a.m.YOW - LAS
1 stop11h 14mAir Canada
Tue 9/124:45 p.m.LAS - YOW
2 stops12h 33mAir Canada
Deal found 17/10C$ 395
Sun 23/113:05 p.m.YOW - LAS
1 stop9h 57mPorter Airlines
Wed 26/1112:40 p.m.LAS - YOW
1 stop8h 59mPorter Airlines
Deal found 18/10C$ 399
Sat 15/116:00 a.m.YOW - LAS
1 stop18h 31mWestJet
Sat 22/118:00 a.m.LAS - YOW
2 stops13h 42mWestJet
Deal found 18/10C$ 404
Mon 24/115:40 a.m.YOW - LAS
1 stop9h 18mWestJet
Mon 1/129:15 p.m.LAS - YOW
2 stops16h 38mWestJet
Deal found 18/10C$ 408
Wed 26/115:40 a.m.YOW - LAS
2 stops15h 31mWestJet
Mon 1/129:15 p.m.LAS - YOW
2 stops16h 38mWestJet
Deal found 19/10C$ 409
Wed 3/127:45 a.m.YOW - LAS
1 stop11h 14mAir Canada
Wed 10/124:45 p.m.LAS - YOW
1 stop10h 58mAir Canada
Deal found 19/10C$ 416
Sat 15/113:10 p.m.YOW - SMF
1 stop9h 54mUnited Airlines
Fri 28/117:00 a.m.SMF - YOW
1 stop11h 18mUnited Airlines
Deal found 19/10C$ 421
Wed 3/127:30 p.m.YOW - SJC
2 stops21h 02mUnited Airlines
Wed 10/128:45 a.m.SJC - YOW
2 stops22h 41mUnited Airlines
Deal found 19/10C$ 421
Sat 13/126:45 a.m.YOW - PSP
1 stop9h 27mMultiple Airlines
Sat 10/110:25 a.m.PSP - YOW
2 stops11h 15mMultiple Airlines
Deal found 18/10C$ 458

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ottawa to California 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 20 October 2025.
Use the filters below to find and compare flights from Ottawa to California that are best for you.

Fly from

Ottawa

Fly to

California

Route

Depart

Return

Price

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Mon 17/11

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

1 stop15h 11m

Las Vegas Harry Reid Intl

Fri 21/11

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

2 stops13h 42m

C$ 391

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Sat 15/11

6:00 a.m.-8:15 p.m.

2 stops17h 15m

Las Vegas Harry Reid Intl

Sat 22/11

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

2 stops13h 42m

C$ 404

OttawaSacramento

YOW - SMF

YOWSMF

Ottawa

Sat 15/11

2:15 p.m.-10:35 p.m.

1 stop11h 20m

Sacramento Intl

Fri 28/11

7:00 a.m.-9:18 p.m.

1 stop11h 18m

C$ 421

OttawaSacramento

YOW - SMF

YOWSMF

Ottawa

Tue 24/2

9:45 a.m.-5:46 p.m.

2 stops11h 01m

Sacramento Intl

Wed 25/2

4:00 p.m.-10:26 a.m.

2 stops15h 26m

C$ 421

OttawaSan Jose

YOW - SJC

YOWSJC

Ottawa

Wed 3/12

7:30 p.m.-1:32 p.m.

2 stops21h 02m

San Jose

Wed 10/12

8:45 a.m.-10:26 a.m.

2 stops22h 41m

C$ 421

OttawaSan Jose

YOW - SJC

YOWSJC

Ottawa

Tue 24/2

9:45 a.m.-9:06 p.m.

2 stops14h 21m

San Jose

Wed 25/2

3:55 p.m.-10:26 a.m.

2 stops15h 31m

C$ 421

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Mon 5/1

4:20 p.m.-8:30 p.m.

3 stops31h 10m

Las Vegas Harry Reid Intl

Fri 9/1

12:15 a.m.-11:58 p.m.

2 stops20h 43m

C$ 423

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Mon 10/11

7:30 p.m.-11:25 a.m.

1 stop18h 55m

Las Vegas Harry Reid Intl

Fri 14/11

11:59 p.m.-10:26 a.m.

1 stop7h 27m

C$ 428

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Fri 14/11

3:10 p.m.-10:20 p.m.

1 stop10h 10m

Las Vegas Harry Reid Intl

Fri 21/11

11:59 p.m.-10:26 a.m.

1 stop7h 27m

C$ 430

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Sat 15/11

5:14 p.m.-9:49 p.m.

1 stop7h 35m

Las Vegas Harry Reid Intl

Fri 21/11

11:59 p.m.-10:26 a.m.

1 stop7h 27m

C$ 430

Flights are sorted by cheapest round-trip flights first.

Deals found on 19/10

Showing 1-10 of 60 results
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Best time to book a flight from Ottawa to California

Have a flexible travel schedule? Discover the best time to fly to California 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 California

What is the cheapest month to book a flight from Ottawa to California?

Currently, January is the cheapest month in which you can book a flight from Ottawa to California (average of C$ 184). Flying from Ottawa to California in November is currently the most expensive (average of C$ 314). 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 CA?

Find hourly flight availability from Ottawa to California. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 20 October 2025.

One of the essential ways to save on airfare from Ottawa to California is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the evening could potentially save you up to 18% on airfare.

What is the cheapest day to fly from Ottawa to California?

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

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

How much does it cost to fly round-trip from Ottawa to California?

Reviews of airlines servicing California

Get insights into the airlines that provide service to California. 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 California. Reviews last updated 20 October 2025.
Check out reviews from past customers who have flown with Porter Airlines,United Airlines, andWestJet from Ottawa to California to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
381 reviews
Check prices

Comfort

8.0

Overall

8.0

Boarding

8.2

Crew

8.6

Entertainment

7.0

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
8.0
Very good
381 reviews
Porter Airlines
8.0
Very good
381 reviews
Check prices

Comfort

8.0

Overall

8.0

Boarding

8.2

Crew

8.6

Entertainment

7.0

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
8,993 reviews
Porter Airlines
8.0
Very good
381 reviews
Check prices

Comfort

8.0

Overall

8.0

Boarding

8.2

Crew

8.6

Entertainment

7.0

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
3,131 reviews
Porter Airlines
8.0
Very good
381 reviews
Check prices

Comfort

8.0

Overall

8.0

Boarding

8.2

Crew

8.6

Entertainment

7.0

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
10,334 reviews
Porter Airlines
8.0
Very good
381 reviews
Check prices

Comfort

8.0

Overall

8.0

Boarding

8.2

Crew

8.6

Entertainment

7.0

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 California. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Ottawa to California?

    Most people fly from Ottawa (YOW) if they book a flight from Ottawa to California. Ottawa is conveniently located just 10.6 km from Ottawa’s city centre.

  • How long is the flight from Ottawa to California?

    Departing from Ottawa to California will take you 9h 32m. Ottawa and California are separated by a distance of 3925 km. This flight may include one or multiple stops.

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

    To fly one-way, consider booking your trip with Air Canada, which is currently one of the cheapest options available, starting at C$ 247. United Airlines flights start at C$ 254 while deals on Porter Airlines start at C$ 258 one-way.

  • What are the most popular routes from Ottawa to California?

    The most popular flight routes from Ottawa to California are Ottawa - Las Vegas Harry Reid Intl, Ottawa - Los Angeles and Ottawa - San Francisco.

  • Can I find deals for flights from Ottawa to California that include hotel bookings?

    Yes. In addition to deals on Ottawa to California flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ottawa to California?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ottawa to California.

  • Can I find deals for business class flights from Ottawa to California?

    Yes. Cheapflights offers flight deals from Ottawa to California 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 California?

    Currently, January is the cheapest month in which you can book a flight from Ottawa to California (average of C$ 184). Flying from Ottawa to California in November is currently the most expensive (average of C$ 314). 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

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Alternative routes for Ottawa to California

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Ottawa to California

Discover the top 4 airlines that operate flights from Ottawa to California. 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 20 October 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 217AverageC$ 592FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
WestJetCheapestC$ 246AverageC$ 424FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Porter AirlinesCheapestC$ 272AverageC$ 505FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
United AirlinesCheapestC$ 331AverageC$ 696FlexibilityNo 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 California?

Cheapflights helps you search for flights from Ottawa to California via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Ottawa to California?

Cheapflights simply makes it quick and affordable to book flights from Ottawa to California by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Ottawa to California with no change fees?

Certainly. Search results for flights to California from Ottawa shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Ottawa to California become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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