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Cheap flights from Ottawa to California from C$ 178

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 30/5. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — LAX
17 May — 24 May1
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 17 April 2026.

Fri 5/61:20 p.m.
YOW
-
LAS
1 stop11h 20m
WestJet
Mon 8/64:35 p.m.
LAS
-
YOW
1 stop16h 55m
WestJet
Deal found 16/4C$ 357
Sun 24/51:20 p.m.
YOW
-
LAS
1 stop11h 20m
WestJet
Wed 27/54:35 p.m.
LAS
-
YOW
1 stop16h 55m
WestJet
Deal found 16/4C$ 359
Sun 3/512:25 p.m.
YOW
-
LAS
2 stops12h 15m
WestJet
Thu 7/54:35 p.m.
LAS
-
YOW
1 stop16h 55m
WestJet
Deal found 16/4C$ 361
Mon 15/67:20 a.m.
YOW
-
LAS
1 stop12h 55m
WestJet
Thu 25/66:10 p.m.
LAS
-
YOW
1 stop8h 25m
WestJet
Deal found 17/4C$ 362
Sun 3/512:25 p.m.
YOW
-
LAS
2 stops12h 15m
WestJet
Sun 10/57:25 p.m.
LAS
-
YOW
1 stop13h 10m
WestJet
Deal found 16/4C$ 363
Thu 28/51:20 p.m.
YOW
-
LAS
1 stop11h 20m
WestJet
Mon 1/68:30 a.m.
LAS
-
YOW
1 stop27h 50m
WestJet
Deal found 16/4C$ 365
Sat 13/612:25 p.m.
YOW
-
LAS
2 stops12h 15m
WestJet
Mon 15/68:30 a.m.
LAS
-
YOW
2 stops12h 50m
WestJet
Deal found 16/4C$ 366
Sat 13/612:25 p.m.
YOW
-
LAS
2 stops12h 15m
WestJet
Wed 17/61:20 p.m.
LAS
-
YOW
2 stops20h 10m
WestJet
Deal found 16/4C$ 368
Thu 18/612:25 p.m.
YOW
-
SFO
2 stops12h 30m
WestJet
Thu 25/66:05 p.m.
SFO
-
YOW
1 stop8h 30m
WestJet
Deal found 14/4C$ 372
Sun 3/57:20 a.m.
YOW
-
LAS
1 stop17h 20m
WestJet
Wed 6/56:10 p.m.
LAS
-
YOW
1 stop8h 25m
WestJet
Deal found 16/4C$ 373
Thu 7/512:25 p.m.
YOW
-
SFO
2 stops12h 30m
WestJet
Wed 27/56:00 a.m.
SFO
-
YOW
1 stop8h 15m
WestJet
Deal found 14/4C$ 373
Tue 5/56:55 a.m.
YOW
-
LAS
1 stop7h 45m
WestJet
Sat 9/58:30 a.m.
LAS
-
YOW
2 stops24h 05m
WestJet
Deal found 16/4C$ 374

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 17 April 2026.

Round-trip from

C$ 357

One-way from

C$ 178

Popular in

December

Cheapest in

August

Average price

C$ 486
WestJet
  • WestJet
  • 5/6-8/6
  • 2 total stops
  • 28h 15m total
  • Ottawa to California
Search Deals
WestJet
  • WestJet
  • 30/5
  • 2 total stops
  • 12h 15m total
  • Ottawa to California
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (C$ 119 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 23 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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 17 April 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

Sun 3/5

6:25 a.m.-10:02 p.m.

1 stop18h 37m

Las Vegas Harry Reid Intl

Fri 8/5

11:40 p.m.-10:03 a.m.

1 stop7h 23m

C$ 394

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Sat 13/6

6:25 a.m.-9:54 p.m.

1 stop18h 29m

Las Vegas Harry Reid Intl

Tue 16/6

10:00 p.m.-9:11 a.m.

1 stop8h 11m

C$ 395

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Mon 4/5

3:10 p.m.-8:35 p.m.

1 stop8h 25m

Las Vegas Harry Reid Intl

Sat 9/5

7:00 a.m.-9:35 p.m.

1 stop11h 35m

C$ 402

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Sat 2/5

3:10 p.m.-8:45 p.m.

1 stop8h 35m

Las Vegas Harry Reid Intl

Mon 11/5

10:35 p.m.-9:11 a.m.

1 stop7h 36m

C$ 402

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Sun 3/5

6:25 a.m.-12:28 p.m.

1 stop9h 03m

Las Vegas Harry Reid Intl

Sat 9/5

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

1 stop9h 35m

C$ 402
Quickest round-trip

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Wed 6/5

6:00 a.m.-11:22 a.m.

1 stop8h 22m

Las Vegas Harry Reid Intl

Fri 8/5

11:40 p.m.-10:03 a.m.

1 stop7h 23m

C$ 402

OttawaLos Angeles

YOW - LAX

YOWLAX

Ottawa

Fri 8/5

7:20 a.m.-5:10 p.m.

1 stop12h 50m

Los Angeles Los Angeles

Sat 16/5

6:05 p.m.-5:35 a.m.

1 stop8h 30m

C$ 425

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Tue 9/6

10:44 a.m.-9:54 p.m.

1 stop14h 10m

Las Vegas Harry Reid Intl

Tue 9/6

12:36 a.m.-5:07 p.m.

1 stop13h 31m

C$ 425

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Tue 19/5

6:55 a.m.-9:55 p.m.

2 stops18h 00m

San Francisco

Tue 26/5

6:00 a.m.-5:15 p.m.

1 stop8h 15m

C$ 443

OttawaLos Angeles

YOW - LAX

YOWLAX

Ottawa

Wed 23/9

6:25 a.m.-3:35 p.m.

2 stops12h 10m

Los Angeles Los Angeles

Wed 23/9

6:45 p.m.-9:11 a.m.

2 stops11h 26m

C$ 457

Flights are sorted by cheapest round-trip flights first.

Deals found on 15/4

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, July is the cheapest month in which you can book a flight from Ottawa to California (average of C$ 126). Flying from Ottawa to California in February is currently the most expensive (average of C$ 322). 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?

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 17 April 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
8.0
Very good
435 reviews
Check prices

Overall

8.0

Food

7.6

Comfort

8.0

Entertainment

7.0

Boarding

8.2

Crew

8.6

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
Porter Airlines
8.0
Very good
435 reviews
Porter Airlines
8.0
Very good
435 reviews
Check prices

Overall

8.0

Food

7.6

Comfort

8.0

Entertainment

7.0

Boarding

8.2

Crew

8.6

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
United Airlines
7.4
Good
9,602 reviews
Porter Airlines
8.0
Very good
435 reviews
Check prices

Overall

8.0

Food

7.6

Comfort

8.0

Entertainment

7.0

Boarding

8.2

Crew

8.6

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
WestJet
7.2
Good
3,321 reviews
Porter Airlines
8.0
Very good
435 reviews
Check prices

Overall

8.0

Food

7.6

Comfort

8.0

Entertainment

7.0

Boarding

8.2

Crew

8.6

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
Air Canada
7.1
Good
10,932 reviews
Porter Airlines
8.0
Very good
435 reviews
Check prices

Overall

8.0

Food

7.6

Comfort

8.0

Entertainment

7.0

Boarding

8.2

Crew

8.6

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.

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 11h 35m. 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 Porter Airlines, which is currently one of the cheapest options available, starting at C$ 195. Air Canada flights start at C$ 198 while deals on WestJet start at C$ 204 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 - San Francisco and Ottawa - San Diego.

  • 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, July is the cheapest month in which you can book a flight from Ottawa to California (average of C$ 126). Flying from Ottawa to California in February is currently the most expensive (average of C$ 322). 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 17 April 2026.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 240AverageC$ 411FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Porter AirlinesCheapestC$ 304AverageC$ 556FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air CanadaCheapestC$ 306AverageC$ 686FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 323AverageC$ 634FlexibilityNo 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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