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

WestJet, United Airlines, and Air Canada 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 60% 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$ 255 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.

7:20 a.m. - 3:45 p.m.YOW Ottawa-LAS Las Vegas Harry Reid Intl

11h 25m2 stops Calgary Edmonton

1:20 p.m. - 5:35 a.m.LAS Las Vegas Harry Reid Intl-YOW Ottawa

13h 15m2 stops Vancouver Intl Calgary

C$ 427WestJet

Mon, 5 Oct - Tue, 20 Oct

6:10 a.m. - 8:45 p.m.YOW Ottawa-LAS Las Vegas Harry Reid Intl

17h 35m1 stop Calgary

9:35 a.m. - 12:01 a.m.LAS Las Vegas Harry Reid Intl-YOW Ottawa

11h 26m2 stops Edmonton Calgary

C$ 433WestJet

Mon, 16 Nov - Thu, 19 Nov

5:40 p.m. - 10:37 p.m.YOW Ottawa-LAS Las Vegas Harry Reid Intl

7h 57m1 stop Toronto Pearson Intl

2:35 p.m. - 12:50 a.m.LAS Las Vegas Harry Reid Intl-YOW Ottawa

7h 15m1 stop Toronto Pearson Intl

C$ 440Porter Airlines

Sun, 15 Nov - Wed, 18 Nov

5:40 p.m. - 10:37 p.m.YOW Ottawa-LAS Las Vegas Harry Reid Intl

7h 57m1 stop Toronto Pearson Intl

9:40 a.m. - 12:50 a.m.LAS Las Vegas Harry Reid Intl-YOW Ottawa

12h 10m2 stops Edmonton Toronto Pearson Intl

C$ 447Porter Airlines

Sun, 15 Nov - Wed, 18 Nov

6:00 a.m. - 8:08 p.m.YOW Ottawa-LAS Las Vegas Harry Reid Intl

17h 08m1 stop Washington, D.C. Dulles Intl

7:50 p.m. - 2:09 p.m.LAS Las Vegas Harry Reid Intl-YOW Ottawa

15h 19m2 stops San Francisco Chicago O'Hare Intl

C$ 468United Airlines

Fri, 23 Oct - Mon, 26 Oct

6:00 a.m. - 8:08 p.m.YOW Ottawa-LAS Las Vegas Harry Reid Intl

17h 08m1 stop Washington, D.C. Dulles Intl

11:45 p.m. - 7:27 p.m.LAS Las Vegas Harry Reid Intl-YOW Ottawa

16h 42m1 stop Washington, D.C. Dulles Intl

C$ 468United Airlines

Fri, 23 Oct - Mon, 26 Oct

5:40 p.m. - 10:37 p.m.YOW Ottawa-LAS Las Vegas Harry Reid Intl

7h 57m1 stop Toronto Pearson Intl

9:35 a.m. - 12:01 a.m.LAS Las Vegas Harry Reid Intl-YOW Ottawa

11h 26m2 stops Edmonton Calgary

C$ 498Multiple Airlines

Thu, 5 Nov - Thu, 12 Nov

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$ 512Air Canada

Sat, 3 Oct - Mon, 19 Oct

7:45 a.m. - 4:25 p.m.YOW Ottawa-SAN San Diego

11h 40m1 stop Vancouver Intl

12:55 p.m. - 11:55 p.m.SAN San Diego-YOW Ottawa

8h 00m1 stop Toronto Pearson Intl

C$ 513Air Canada

Wed, 18 Nov - Fri, 27 Nov

5:40 p.m. - 10:37 p.m.YOW Ottawa-LAS Las Vegas Harry Reid Intl

7h 57m1 stop Toronto Pearson Intl

9:35 a.m. - 12:01 a.m.LAS Las Vegas Harry Reid Intl-YOW Ottawa

11h 26m2 stops Edmonton Calgary

C$ 517Multiple Airlines

Thu, 5 Nov - Thu, 12 Nov

Cheap last-minute 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

4:30 p.m. - 5:35 a.m.LAS Las Vegas Harry Reid Intl-YOW Ottawa

10h 05m1 stop Calgary

C$ 761WestJet

Thu, 24 Sep - Thu, 1 Oct

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

12h 15m2 stops Winnipeg Calgary

8:30 a.m. - 12:20 a.m.LAS Las Vegas Harry Reid Intl-YOW Ottawa

12h 50m2 stops Calgary Toronto Pearson Intl

C$ 772WestJet

Thu, 24 Sep - Thu, 1 Oct

6:00 a.m. - 11:04 a.m.YOW Ottawa-LAS Las Vegas Harry Reid Intl

8h 04m1 stop Washington, D.C. Dulles Intl

1:50 p.m. - 9:11 a.m.LAS Las Vegas Harry Reid Intl-YOW Ottawa

16h 21m1 stop Newark

C$ 838United Airlines

Sat, 26 Sep - Wed, 30 Sep

2:52 p.m. - 8:08 p.m.YOW Ottawa-LAS Las Vegas Harry Reid Intl

8h 16m1 stop Washington, D.C. Dulles Intl

3:26 p.m. - 9:11 a.m.LAS Las Vegas Harry Reid Intl-YOW Ottawa

14h 45m1 stop Newark

C$ 838United Airlines

Sat, 26 Sep - Wed, 30 Sep

11:10 a.m. - 10:23 p.m.YOW Ottawa-LAS Las Vegas Harry Reid Intl

14h 13m1 stop Montreal Pierre Elliott Trudeau Intl

11:25 p.m. - 10:18 a.m.LAS Las Vegas Harry Reid Intl-YOW Ottawa

7h 53m1 stop Montreal Pierre Elliott Trudeau Intl

C$ 884Air Canada

Fri, 25 Sep - Mon, 28 Sep

9:05 a.m. - 10:23 p.m.YOW Ottawa-LAS Las Vegas Harry Reid Intl

16h 18m1 stop Montreal Pierre Elliott Trudeau Intl

5:45 a.m. - 10:10 p.m.LAS Las Vegas Harry Reid Intl-YOW Ottawa

13h 25m2 stops San Francisco Montreal Pierre Elliott Trudeau Intl

C$ 884Air Canada

Fri, 25 Sep - Mon, 28 Sep

1:20 p.m. - 10:05 p.m.YOW Ottawa-LAX Los Angeles

11h 45m1 stop Calgary

11:30 a.m. - 3:20 p.m.LAX Los Angeles-YOW Ottawa

24h 50m2 stops Vancouver Intl Calgary

C$ 928Multiple Airlines

Fri, 25 Sep - Mon, 28 Sep

4:15 p.m. - 12:30 p.m.YOW Ottawa-LAS Las Vegas Harry Reid Intl

23h 15m3 stops Calgary Victoria Intl Vancouver Intl

12:59 a.m. - 4:15 p.m.LAS Las Vegas Harry Reid Intl-YOW Ottawa

12h 16m2 stops Dallas/Fort Worth Newark

C$ 1,030Multiple Airlines

Sat, 26 Sep - Tue, 29 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$ 1,271Porter Airlines

Thu, 24 Sep - Mon, 28 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$ 1,274Porter Airlines

Thu, 24 Sep - Mon, 28 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

17 Nov

YOW7:45 a.m.Ottawa

11h 40m

1 stop

SAN4:25 p.m.San Diego

27 Nov

SAN12:55 p.m.San Diego

8h 00m

1 stop

YOW11:55 p.m.Ottawa

C$ 463

Air Canada

17 Nov

YOW7:45 a.m.Ottawa

11h 40m

1 stop

SAN4:25 p.m.San Diego

27 Nov

SAN12:55 p.m.San Diego

8h 00m

1 stop

YOW11:55 p.m.Ottawa

C$ 513

Air Canada

5 Oct

YOW5:00 a.m.Ottawa

11h 35m

1 stop

LAX1:35 p.m.Los Angeles

11 Oct

LAX12:20 p.m.Los Angeles

9h 33m

1 stop

YOW12:53 a.m.Ottawa

C$ 565

United Airlines flights from Ottawa to California

Our best United Airlines deals on Ottawa to California flight tickets

United Airlines

17 Nov

YOW6:15 a.m.Ottawa

8h 12m

1 stop

SAN11:27 a.m.San Diego

26 Nov

SAN10:30 p.m.San Diego

12h 39m

1 stop

YOW2:09 p.m.Ottawa

C$ 460

United Airlines

23 Oct

YOW6:00 a.m.Ottawa

17h 08m

1 stop

LAS8:08 p.m.Las Vegas Harry Reid Intl

26 Oct

LAS11:45 p.m.Las Vegas Harry Reid Intl

16h 42m

1 stop

YOW7:27 p.m.Ottawa

C$ 468

United Airlines

17 Oct

YOW6:00 a.m.Ottawa

12h 54m

2 stops

SAN3:54 p.m.San Diego

21 Oct

SAN9:45 p.m.San Diego

9h 11m

1 stop

YOW9:56 a.m.Ottawa

C$ 499

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OttawaLas Vegas

YOW Ottawa - LAS Las Vegas Harry Reid Intl

YOWLAS

Ottawa

Mon 5/10

7:20 a.m.-3:45 p.m.

2 stops11h 25m

Las Vegas Harry Reid Intl

Tue 20/10

1:20 p.m.-5:35 a.m.

2 stops13h 15m

C$ 427

OttawaLas Vegas

YOW Ottawa - LAS Las Vegas Harry Reid Intl

YOWLAS

Ottawa

Mon 16/11

6:10 a.m.-8:45 p.m.

1 stop17h 35m

Las Vegas Harry Reid Intl

Thu 19/11

9:35 a.m.-12:01 a.m.

2 stops11h 26m

C$ 433

Quickest round-trip

OttawaLas Vegas

YOW Ottawa - LAS Las Vegas Harry Reid Intl

YOWLAS

Ottawa

Sun 15/11

5:40 p.m.-10:37 p.m.

1 stop7h 57m

Las Vegas Harry Reid Intl

Wed 18/11

2:35 p.m.-12:50 a.m.

1 stop7h 15m

C$ 440

OttawaLas Vegas

YOW Ottawa - LAS Las Vegas Harry Reid Intl

YOWLAS

Ottawa

Sun 15/11

5:40 p.m.-10:37 p.m.

1 stop7h 57m

Las Vegas Harry Reid Intl

Wed 18/11

9:40 a.m.-12:50 a.m.

2 stops12h 10m

C$ 447

OttawaLas Vegas

YOW Ottawa - LAS Las Vegas Harry Reid Intl

YOWLAS

Ottawa

Fri 23/10

6:00 a.m.-8:08 p.m.

1 stop17h 08m

Las Vegas Harry Reid Intl

Mon 26/10

7:50 p.m.-2:09 p.m.

2 stops15h 19m

C$ 468

OttawaLas Vegas

YOW Ottawa - LAS Las Vegas Harry Reid Intl

YOWLAS

Ottawa

Fri 23/10

6:00 a.m.-8:08 p.m.

1 stop17h 08m

Las Vegas Harry Reid Intl

Mon 26/10

11:45 p.m.-7:27 p.m.

1 stop16h 42m

C$ 468

OttawaLas Vegas

YOW Ottawa - LAS Las Vegas Harry Reid Intl

YOWLAS

Ottawa

Thu 5/11

5:40 p.m.-10:37 p.m.

1 stop7h 57m

Las Vegas Harry Reid Intl

Thu 12/11

9:35 a.m.-12:01 a.m.

2 stops11h 26m

C$ 498

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$ 512

OttawaSan Diego

YOW Ottawa - SAN San Diego

YOWSAN

Ottawa

Wed 18/11

7:45 a.m.-4:25 p.m.

1 stop11h 40m

San Diego

Fri 27/11

12:55 p.m.-11:55 p.m.

1 stop8h 00m

C$ 513

OttawaLas Vegas

YOW Ottawa - LAS Las Vegas Harry Reid Intl

YOWLAS

Ottawa

Thu 5/11

5:40 p.m.-10:37 p.m.

1 stop7h 57m

Las Vegas Harry Reid Intl

Thu 12/11

9:35 a.m.-12:01 a.m.

2 stops11h 26m

C$ 517

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$ 577, 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$ 598.

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$ 619 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$ 503 on momondo.

Can stopping save me money on Ottawa to California flights?

You could potentially save up to 1% 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$ 255
Fastest flight time	7h 57m
Direct flights	None

The best one-way flight to California from Ottawa in the past 72 hours is C$ 255. The best round-trip flight deal from Ottawa to California found on momondo in the last 72 hours is C$ 427.

The fastest flight from Ottawa to California takes 7h 57m

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$ 183	Free Cancellation	Rating 7.1 11,667 reviews	Search Air Canada flights
United Airlines	PriceFrom C$ 317	Free Cancellation	Rating 7.4 10,229 reviews	Search United Airlines flights
WestJet	PriceFrom C$ 354	Free Cancellation	Rating 7.2 3,446 reviews	Search WestJet flights
Porter Airlines	PriceFrom C$ 398	Free Cancellation	Rating 8.0 462 reviews	Search Porter Airlines flights
Air Transat	PriceFrom C$ 662	Free Cancellation	Rating 7.7 581 reviews	Search Air Transat flights
Delta	PriceFrom C$ 769	Free Cancellation	Rating 7.8 8,595 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.