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Cheap flights from Ottawa to California from C$ 243

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 29/10. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — LAX
7 Aug — 14 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap 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 8 July 2026.

Sun 20/97:20 a.m.
YOW
-
LAS
2 stops11h 25m
WestJet
Fri 25/96:10 p.m.
LAS
-
YOW
1 stop8h 25m
WestJet
Deal found 3/7C$ 386
Sat 26/912:25 p.m.
YOW
-
LAS
2 stops12h 15m
WestJet
Wed 30/96:10 p.m.
LAS
-
YOW
1 stop8h 25m
WestJet
Deal found 3/7C$ 389
Mon 9/115:40 a.m.
YOW
-
LAS
2 stops16h 35m
WestJet
Fri 13/118:00 a.m.
LAS
-
YOW
2 stops13h 42m
WestJet
Deal found 3/7C$ 396
Sat 10/101:20 p.m.
YOW
-
LAS
1 stop11h 20m
WestJet
Sat 24/106:10 p.m.
LAS
-
YOW
1 stop8h 25m
WestJet
Deal found 3/7C$ 402
Fri 16/1012:25 p.m.
YOW
-
LAS
2 stops12h 15m
WestJet
Mon 26/109:15 p.m.
LAS
-
YOW
2 stops16h 35m
WestJet
Deal found 3/7C$ 413
Sun 27/97:20 a.m.
YOW
-
LAS
2 stops11h 25m
WestJet
Sun 4/106:10 p.m.
LAS
-
YOW
2 stops27h 10m
WestJet
Deal found 3/7C$ 419
Sat 19/912:25 p.m.
YOW
-
LAS
2 stops12h 15m
WestJet
Tue 22/91:20 p.m.
LAS
-
YOW
2 stops13h 15m
WestJet
Deal found 8/7C$ 456
Wed 23/91:20 p.m.
YOW
-
LAS
1 stop11h 20m
WestJet
Fri 2/104:30 p.m.
LAS
-
YOW
1 stop10h 05m
WestJet
Deal found 7/7C$ 459
Fri 14/812:25 p.m.
YOW
-
SFO
2 stops12h 30m
WestJet
Sun 30/86:00 a.m.
SFO
-
YOW
1 stop8h 15m
WestJet
Deal found 7/7C$ 469
Tue 21/75:20 p.m.
YOW
-
SNA
2 stops18h 47m
United Airlines
Sat 1/86:26 p.m.
SNA
-
YOW
2 stops12h 37m
United Airlines
Deal found 7/7C$ 476
Thu 27/86:00 a.m.
YOW
-
SFO
1 stop9h 00m
WestJet
Wed 2/91:00 p.m.
SFO
-
YOW
1 stop8h 40m
WestJet
Deal found 7/7C$ 477
Sat 15/812:25 p.m.
YOW
-
SFO
2 stops12h 30m
WestJet
Sun 23/86:00 a.m.
SFO
-
YOW
1 stop8h 15m
WestJet
Deal found 6/7C$ 483

Find flight deals from Ottawa to California

Keep the following information in mind while searching for Ottawa to California flight deals. Data was last updated 8 July 2026.

Round-trip from

C$ 386

One-way from

C$ 243

Popular in

December

Cheapest in

October

Average price

C$ 668
WestJet
  • WestJet
  • 20/9-25/9
  • 3 total stops
  • 19h 50m total
  • Ottawa to California
Search Deals
WestJet
  • WestJet
  • 29/10
  • 1 total stop
  • 9h 17m total
  • Ottawa to California
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (C$ 37 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

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 8 July 2026.
Use the filters below to find and compare flights from Ottawa to California that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Mon 9/11

6:00 a.m.-8:33 p.m.

1 stop17h 33m

Las Vegas Harry Reid Intl

Fri 13/11

8:00 a.m.-11:45 p.m.

1 stop12h 45m

C$ 455

OttawaSanta Ana

YOW - SNA

YOWSNA

Ottawa

Fri 11/9

5:57 p.m.-9:57 a.m.

1 stop19h 00m

Santa Ana J. Wayne/Orange Cnty

Mon 14/9

9:14 p.m.-4:38 p.m.

1 stop16h 24m

C$ 476

OttawaSanta Ana

YOW - SNA

YOWSNA

Ottawa

Thu 10/9

5:20 p.m.-9:07 a.m.

2 stops18h 47m

Santa Ana J. Wayne/Orange Cnty

Mon 14/9

6:32 p.m.-9:56 a.m.

2 stops12h 24m

C$ 476

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Thu 27/8

6:00 a.m.-12:00 p.m.

1 stop9h 00m

San Francisco

Wed 2/9

1:00 p.m.-12:40 a.m.

1 stop8h 40m

C$ 477

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Wed 29/7

6:25 a.m.-2:34 p.m.

2 stops11h 09m

Las Vegas Harry Reid Intl

Wed 12/8

7:15 a.m.-5:16 p.m.

1 stop7h 01m

C$ 492

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Tue 28/7

6:25 a.m.-5:03 p.m.

2 stops13h 38m

Las Vegas Harry Reid Intl

Thu 13/8

11:57 p.m.-9:56 a.m.

1 stop6h 59m

C$ 492

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Mon 27/7

6:25 a.m.-6:33 p.m.

1 stop15h 08m

Las Vegas Harry Reid Intl

Fri 31/7

6:00 a.m.-9:35 p.m.

2 stops12h 35m

C$ 492

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Wed 29/7

6:25 a.m.-2:34 p.m.

2 stops11h 09m

Las Vegas Harry Reid Intl

Mon 10/8

6:10 p.m.-9:11 a.m.

2 stops12h 01m

C$ 492

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Thu 23/7

2:52 p.m.-10:19 p.m.

1 stop10h 27m

Las Vegas Harry Reid Intl

Mon 27/7

8:31 p.m.-5:07 p.m.

2 stops17h 36m

C$ 492

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Mon 27/7

6:25 a.m.-11:08 a.m.

1 stop7h 43m

Las Vegas Harry Reid Intl

Mon 10/8

7:03 p.m.-1:59 p.m.

1 stop15h 56m

C$ 492

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/7

Showing 1-10 of 60 resultsSorted by cheapest first
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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, August is the cheapest month in which you can book a flight from Ottawa to California (average of C$ 145). Flying from Ottawa to California in February is currently the most expensive (average of C$ 334). 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 California?

How far ahead should I book a flight from Ottawa to California?

To ensure you get the cheapest price possible for a flight from Ottawa to California, you should look to book at least 35 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.

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 8 July 2026.
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
7.9
Good
442 reviews
Check prices

Boarding

8.2

Food

7.5

Entertainment

6.9

Crew

8.6

Overall

7.9

Comfort

7.9

Reviews

1 / 20
6.0
Good

Justin,May 2026

YYZ - MCO

Staff very nice. Seats were uncomfortable. Complimentary snacks leave much to be desired.
Porter Airlines
7.9
Good
442 reviews
Porter Airlines
7.9
Good
442 reviews
Check prices

Boarding

8.2

Food

7.5

Entertainment

6.9

Crew

8.6

Overall

7.9

Comfort

7.9

Reviews

1 / 20
6.0
Good

Justin,May 2026

YYZ - MCO

Staff very nice. Seats were uncomfortable. Complimentary snacks leave much to be desired.
United Airlines
7.4
Good
9,955 reviews
Porter Airlines
7.9
Good
442 reviews
Check prices

Boarding

8.2

Food

7.5

Entertainment

6.9

Crew

8.6

Overall

7.9

Comfort

7.9

Reviews

1 / 20
6.0
Good

Justin,May 2026

YYZ - MCO

Staff very nice. Seats were uncomfortable. Complimentary snacks leave much to be desired.
WestJet
7.2
Good
3,404 reviews
Porter Airlines
7.9
Good
442 reviews
Check prices

Boarding

8.2

Food

7.5

Entertainment

6.9

Crew

8.6

Overall

7.9

Comfort

7.9

Reviews

1 / 20
6.0
Good

Justin,May 2026

YYZ - MCO

Staff very nice. Seats were uncomfortable. Complimentary snacks leave much to be desired.
Air Canada
7.1
Good
11,321 reviews
Porter Airlines
7.9
Good
442 reviews
Check prices

Boarding

8.2

Food

7.5

Entertainment

6.9

Crew

8.6

Overall

7.9

Comfort

7.9

Reviews

1 / 20
6.0
Good

Justin,May 2026

YYZ - MCO

Staff very nice. Seats were uncomfortable. Complimentary snacks leave much to be desired.

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 17h 28m. Ottawa and California are separated by a distance of 3748 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 WestJet, which is currently one of the cheapest options available, starting at C$ 181. Air Canada flights start at C$ 206 while deals on United Airlines start at C$ 218 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 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, August is the cheapest month in which you can book a flight from Ottawa to California (average of C$ 145). Flying from Ottawa to California in February is currently the most expensive (average of C$ 334). 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 8 July 2026.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 300AverageC$ 469FlexibilityNo cancel feeOn-time60%
Search WestJet flights
United AirlinesCheapestC$ 321AverageC$ 668FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 377AverageC$ 676FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Porter AirlinesCheapestC$ 384AverageC$ 625FlexibilityNo cancel feeOn-time52%
Search Porter 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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