What is the cheapest airline that flies from Ottawa to California?

WestJet, Air Canada, and United Airlines are the most popular carriers operating from Ottawa to California

Which airlines fly to California?

Air Canada, United Airlines and Porter Airlines are the top three most popular airlines that fly to California from Ottawa according to our data. Air Canada is the first choice among our users, with 59% of people opting to fly with this airline when travelling to California. Keep in mind that there are 7 different airlines that fly to California on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Ottawa Airport to California?

Prices for flights from Ottawa Airport to California are updated daily.

How many operators does momondo search for flights from Ottawa Airport to California?

As of September 2026, there are 6 operators available to choose from for flights from Ottawa Airport to California.

How old do you have to be to fly from Ottawa Airport to California?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ottawa Airport to California.

What documentation or ID do you need to fly to California?

The travel and health documents you'll need for your trip to California may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at California. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

C$ 191 Cheap Flights from Ottawa to California in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Ottawa to California

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

12:25 p.m. - 9:40 p.m.YOW Ottawa-LAS Las Vegas Harry Reid Intl

12h 15m2 stops Winnipeg Calgary

12:50 p.m. - 1:00 a.m.LAS Las Vegas Harry Reid Intl-YOW Ottawa

9h 10m1 stop Calgary

C$ 310WestJet

Thu, 22 Oct - Wed, 28 Oct

12:25 p.m. - 6:30 p.m.YOW Ottawa-LAS Las Vegas Harry Reid Intl

9h 05m1 stop Winnipeg

12:50 p.m. - 1:00 a.m.LAS Las Vegas Harry Reid Intl-YOW Ottawa

9h 10m1 stop Calgary

C$ 312WestJet

Thu, 22 Oct - Wed, 28 Oct

3:10 p.m. - 10:54 p.m.YOW Ottawa-LAS Las Vegas Harry Reid Intl

10h 44m1 stop Newark

11:43 p.m. - 2:09 p.m.LAS Las Vegas Harry Reid Intl-YOW Ottawa

11h 26m1 stop Chicago O'Hare Intl

C$ 327Lufthansa

Sat, 10 Oct - Fri, 16 Oct

5:45 a.m. - 11:15 a.m.YOW Ottawa-LAS Las Vegas Harry Reid Intl

8h 30m1 stop Montreal Pierre Elliott Trudeau Intl

11:50 p.m. - 11:20 a.m.LAS Las Vegas Harry Reid Intl-YOW Ottawa

8h 30m1 stop Toronto Pearson Intl

C$ 338Air Canada

Tue, 8 Dec - Mon, 14 Dec

5:20 p.m. - 10:13 p.m.YOW Ottawa-LAS Las Vegas Harry Reid Intl

7h 53m1 stop Chicago O'Hare Intl

11:25 p.m. - 9:19 a.m.LAS Las Vegas Harry Reid Intl-YOW Ottawa

6h 54m1 stop Montreal Pierre Elliott Trudeau Intl

C$ 344Multiple Airlines

Wed, 14 Oct - Mon, 19 Oct

3:10 p.m. - 11:15 p.m.YOW Ottawa-LAS Las Vegas Harry Reid Intl

11h 05m1 stop Newark

11:45 p.m. - 1:11 p.m.LAS Las Vegas Harry Reid Intl-YOW Ottawa

10h 26m1 stop Newark

C$ 353United Airlines

Thu, 12 Nov - Mon, 16 Nov

6:01 p.m. - 8:43 a.m.YOW Ottawa-LAS Las Vegas Harry Reid Intl

17h 42m1 stop Newark

7:49 p.m. - 9:56 a.m.LAS Las Vegas Harry Reid Intl-YOW Ottawa

11h 07m2 stops Denver Intl Washington, D.C. Dulles Intl

C$ 353United Airlines

Mon, 19 Oct - Wed, 21 Oct

5:50 p.m. - 10:23 p.m.YOW Ottawa-LAS Las Vegas Harry Reid Intl

7h 33m1 stop Montreal Pierre Elliott Trudeau Intl

11:25 p.m. - 10:21 a.m.LAS Las Vegas Harry Reid Intl-YOW Ottawa

7h 56m1 stop Montreal Pierre Elliott Trudeau Intl

C$ 376Air Canada

Sat, 3 Oct - Mon, 19 Oct

4:00 p.m. - 10:22 p.m.YOW Ottawa-LAS Las Vegas Harry Reid Intl

9h 22m1 stop Toronto Pearson Intl

11:20 p.m. - 8:10 p.m.LAS Las Vegas Harry Reid Intl-YOW Ottawa

17h 50m2 stops Toronto Pearson Intl Kelowna

C$ 402Porter Airlines

Fri, 16 Oct - Mon, 19 Oct

4:00 p.m. - 10:22 p.m.YOW Ottawa-LAS Las Vegas Harry Reid Intl

9h 22m1 stop Toronto Pearson Intl

11:20 p.m. - 2:49 p.m.LAS Las Vegas Harry Reid Intl-YOW Ottawa

12h 29m2 stops Toronto Pearson Intl Halifax Intl

C$ 405Porter Airlines

Fri, 16 Oct - Mon, 19 Oct

Cheap last-minute flights

Enter your travel dates to find the best prices.

8:15 p.m. - 4:40 p.m.YOW Ottawa-SFO San Francisco

23h 25m1 stop Calgary

6:00 a.m. - 7:20 p.m.SFO San Francisco-YOW Ottawa

10h 20m1 stop Calgary

C$ 437WestJet

Tue, 22 Sep - Wed, 30 Sep

6:25 p.m. - 4:40 p.m.YOW Ottawa-SFO San Francisco

25h 15m2 stops Toronto Pearson Intl Calgary

6:00 a.m. - 7:20 p.m.SFO San Francisco-YOW Ottawa

10h 20m1 stop Calgary

C$ 529WestJet

Tue, 22 Sep - Wed, 30 Sep

6:55 a.m. - 7:58 p.m.YOW Ottawa-SFO San Francisco

16h 03m2 stops Toronto Pearson Intl Atlanta Hartsfield-Jackson

8:00 a.m. - 12:20 a.m.SFO San Francisco-YOW Ottawa

13h 20m2 stops Atlanta Hartsfield-Jackson Toronto Pearson Intl

C$ 570Delta

Tue, 22 Sep - Wed, 30 Sep

7:00 a.m. - 1:15 p.m.YOW Ottawa-LAX Los Angeles

9h 15m1 stop Toronto Pearson Intl

2:15 p.m. - 12:25 a.m.LAX Los Angeles-YOW Ottawa

7h 10m1 stop Toronto Pearson Intl

C$ 666Porter Airlines

Sun, 20 Sep - Sun, 27 Sep

6:25 p.m. - 4:40 p.m.YOW Ottawa-SFO San Francisco

25h 15m3 stops Toronto Pearson Intl Winnipeg Calgary

6:05 p.m. - 2:55 p.m.SFO San Francisco-YOW Ottawa

17h 50m2 stops Calgary Toronto Pearson Intl

C$ 775Multiple Airlines

Tue, 22 Sep - Wed, 30 Sep

7:00 a.m. - 12:15 p.m.YOW Ottawa-SFO San Francisco

8h 15m1 stop Toronto Pearson Intl

6:00 a.m. - 12:30 p.m.SFO San Francisco-YOW Ottawa

27h 30m2 stops Calgary Edmonton

C$ 825Multiple Airlines

Sat, 19 Sep - Sun, 27 Sep

7:00 a.m. - 12:15 p.m.YOW Ottawa-SFO San Francisco

8h 15m1 stop Toronto Pearson Intl

1:20 p.m. - 12:25 a.m.SFO San Francisco-YOW Ottawa

8h 05m1 stop Toronto Pearson Intl

C$ 915Porter Airlines

Sun, 20 Sep - Sat, 26 Sep

6:55 a.m. - 7:58 p.m.YOW Ottawa-SFO San Francisco

16h 03m2 stops Toronto Pearson Intl Atlanta Hartsfield-Jackson

12:05 a.m. - 5:35 p.m.SFO San Francisco-YOW Ottawa

14h 30m2 stops Minneapolis St Paul Toronto Pearson Intl

C$ 932Delta

Sun, 20 Sep - Fri, 25 Sep

5:50 p.m. - 10:23 p.m.YOW Ottawa-LAS Las Vegas Harry Reid Intl

7h 33m1 stop Montreal Pierre Elliott Trudeau Intl

11:25 p.m. - 11:30 a.m.LAS Las Vegas Harry Reid Intl-YOW Ottawa

9h 05m1 stop Montreal Pierre Elliott Trudeau Intl

C$ 996Air Canada

Fri, 18 Sep - Sun, 20 Sep

5:50 p.m. - 10:23 p.m.YOW Ottawa-LAS Las Vegas Harry Reid Intl

7h 33m1 stop Montreal Pierre Elliott Trudeau Intl

11:25 p.m. - 9:24 a.m.LAS Las Vegas Harry Reid Intl-YOW Ottawa

6h 59m1 stop Montreal Pierre Elliott Trudeau Intl

C$ 996Air Canada

Fri, 18 Sep - Mon, 21 Sep

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Air Canada flights from Ottawa to California

Our best Air Canada deals on Ottawa to California flight tickets

Air Canada

3 Oct

YOW5:50 p.m.Ottawa

7h 33m

1 stop

LAS10:23 p.m.Las Vegas Harry Reid Intl

19 Oct

LAS11:25 p.m.Las Vegas Harry Reid Intl

7h 56m

1 stop

YOW10:21 a.m.Ottawa

C$ 376

Air Canada

15 Oct

YOW6:55 a.m.Ottawa

12h 05m

1 stop

SAN4:00 p.m.San Diego

21 Oct

SAN9:45 a.m.San Diego

21h 11m

2 stops

YOW9:56 a.m.Ottawa

C$ 431

Air Canada

24 Oct

YOW10:05 p.m.Ottawa

16h 27m

1 stop

PSP11:32 a.m.Palm Springs

30 Oct

PSP12:40 p.m.Palm Springs

9h 16m

1 stop

YOW12:56 a.m.Ottawa

C$ 498

Porter Airlines flights from Ottawa to California

Our best Porter Airlines deals on Ottawa to California flight tickets

Porter Airlines

16 Oct

YOW4:00 p.m.Ottawa

9h 22m

1 stop

LAS10:22 p.m.Las Vegas Harry Reid Intl

19 Oct

LAS11:20 p.m.Las Vegas Harry Reid Intl

12h 29m

2 stops

YOW2:49 p.m.Ottawa

C$ 405

Porter Airlines

29 Oct

YOW7:00 a.m.Ottawa

8h 45m

1 stop

SFO12:45 p.m.San Francisco

3 Nov

SFO1:45 p.m.San Francisco

8h 05m

1 stop

YOW12:50 a.m.Ottawa

C$ 429

Porter Airlines

16 Oct

YOW7:00 a.m.Ottawa

8h 20m

1 stop

SFO12:20 p.m.San Francisco

27 Oct

SFO1:45 p.m.San Francisco

8h 05m

1 stop

YOW12:50 a.m.Ottawa

C$ 470

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OttawaLas Vegas

YOW Ottawa - LAS Las Vegas Harry Reid Intl

YOWLAS

Ottawa

Thu 22/10

12:25 p.m.-9:40 p.m.

2 stops12h 15m

Las Vegas Harry Reid Intl

Wed 28/10

12:50 p.m.-1:00 a.m.

1 stop9h 10m

C$ 310

OttawaLas Vegas

YOW Ottawa - LAS Las Vegas Harry Reid Intl

YOWLAS

Ottawa

Thu 22/10

12:25 p.m.-6:30 p.m.

1 stop9h 05m

Las Vegas Harry Reid Intl

Wed 28/10

12:50 p.m.-1:00 a.m.

1 stop9h 10m

C$ 312

OttawaLas Vegas

YOW Ottawa - LAS Las Vegas Harry Reid Intl

YOWLAS

Ottawa

Sat 10/10

3:10 p.m.-10:54 p.m.

1 stop10h 44m

Las Vegas Harry Reid Intl

Fri 16/10

11:43 p.m.-2:09 p.m.

1 stop11h 26m

C$ 327

OttawaLas Vegas

YOW Ottawa - LAS Las Vegas Harry Reid Intl

YOWLAS

Ottawa

Tue 8/12

5:45 a.m.-11:15 a.m.

1 stop8h 30m

Las Vegas Harry Reid Intl

Mon 14/12

11:50 p.m.-11:20 a.m.

1 stop8h 30m

C$ 338

Quickest round-trip

OttawaLas Vegas

YOW Ottawa - LAS Las Vegas Harry Reid Intl

YOWLAS

Ottawa

Wed 14/10

5:20 p.m.-10:13 p.m.

1 stop7h 53m

Las Vegas Harry Reid Intl

Mon 19/10

11:25 p.m.-9:19 a.m.

1 stop6h 54m

C$ 344

OttawaLas Vegas

YOW Ottawa - LAS Las Vegas Harry Reid Intl

YOWLAS

Ottawa

Thu 12/11

3:10 p.m.-11:15 p.m.

1 stop11h 05m

Las Vegas Harry Reid Intl

Mon 16/11

11:45 p.m.-1:11 p.m.

1 stop10h 26m

C$ 353

OttawaLas Vegas

YOW Ottawa - LAS Las Vegas Harry Reid Intl

YOWLAS

Ottawa

Mon 19/10

6:01 p.m.-8:43 a.m.

1 stop17h 42m

Las Vegas Harry Reid Intl

Wed 21/10

7:49 p.m.-9:56 a.m.

2 stops11h 07m

C$ 353

OttawaLas Vegas

YOW Ottawa - LAS Las Vegas Harry Reid Intl

YOWLAS

Ottawa

Sat 3/10

5:50 p.m.-10:23 p.m.

1 stop7h 33m

Las Vegas Harry Reid Intl

Mon 19/10

11:25 p.m.-10:21 a.m.

1 stop7h 56m

C$ 376

OttawaLas Vegas

YOW Ottawa - LAS Las Vegas Harry Reid Intl

YOWLAS

Ottawa

Fri 16/10

4:00 p.m.-10:22 p.m.

1 stop9h 22m

Las Vegas Harry Reid Intl

Mon 19/10

11:20 p.m.-8:10 p.m.

2 stops17h 50m

C$ 402

OttawaLas Vegas

YOW Ottawa - LAS Las Vegas Harry Reid Intl

YOWLAS

Ottawa

Fri 16/10

4:00 p.m.-10:22 p.m.

1 stop9h 22m

Las Vegas Harry Reid Intl

Mon 19/10

11:20 p.m.-2:49 p.m.

2 stops12h 29m

C$ 405

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Ottawa to California

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to California?

The cheapest month to fly to California from Ottawa is in January. Flight prices, which tend to average around C$ 583, are often lower during this time because this is during the off-season. If you’re not able to fly to California in January, then September is your next best option. Flight prices from Ottawa to California during September average around C$ 593.

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

You are more likely to see cheaper flights to California from Ottawa when booking weeks ahead of your departure date. In general, you can expect to find flights to California for around C$ 605 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to California from Ottawa for as low as C$ 498 on momondo.

Can stopping save me money on Ottawa to California flights?

You could potentially save up to 15% on your flight if you consider stops on a Ottawa to California flight.

Cheap Ottawa to California flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ottawa to California

Best price found	C$ 191
Fastest flight time	7h 53m
Direct flights	None

The best one-way flight to California from Ottawa in the past 72 hours is C$ 191. The best round-trip flight deal from Ottawa to California found on momondo in the last 72 hours is C$ 310.

The fastest flight from Ottawa to California takes 7h 53m

There are no direct flights from Ottawa to California. There are no popular flight routes from Ottawa to California.

Search flight deals

Frequently asked questions about flying from Ottawa to California

When did momondo last update prices for flights from Ottawa Airport to California?
Prices for flights from Ottawa Airport to California are updated daily.
How many operators does momondo search for flights from Ottawa Airport to California?
As of September 2026, there are 6 operators available to choose from for flights from Ottawa Airport to California.
How old do you have to be to fly from Ottawa Airport to California?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ottawa Airport to California.
What documentation or ID do you need to fly to California?
The travel and health documents you'll need for your trip to California may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at California. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Ottawa to California

Compare and see reviews for airlines that fly from Ottawa to California with momondo

Airline	Rating	Free Cancellation	Price
Air Canada	PriceFrom C$ 182	Free Cancellation	Rating 7.1 11,639 reviews	Search Air Canada flights
United Airlines	PriceFrom C$ 314	Free Cancellation	Rating 7.4 10,214 reviews	Search United Airlines flights
WestJet	PriceFrom C$ 330	Free Cancellation	Rating 7.2 3,446 reviews	Search WestJet flights
Porter Airlines	PriceFrom C$ 395	Free Cancellation	Rating 8.0 462 reviews	Search Porter Airlines flights
Air Transat	PriceFrom C$ 657	Free Cancellation	Rating 7.7 579 reviews	Search Air Transat flights
Delta	PriceFrom C$ 764	Free Cancellation	Rating 7.8 8,576 reviews	Search Delta flights

Why use momondo?

Why should I use momondo to find a flight deal from Ottawa to California?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Ottawa to California. momondo saves you time and could save you money on your trip.

Can I find flights from Ottawa to California with flexible booking policies on momondo?

Yes. All flights to California from Ottawa on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Ottawa to California?

Once all potential Ottawa to California flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Ottawa to California right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Ottawa to California now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to California and let you know when they change.