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Cheap flights from Las Vegas to Ottawa from C$ 151

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 8/10. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — YOW
11 Oct — 18 Oct1
1 adult
1 adult, Economy

Cheap flight deals from Las Vegas to Ottawa

Discover tips and strategies to find the most affordable flight options for your journey from Las Vegas (LAS) to Ottawa (YOW). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 11 September 2025.

Round-trip from

C$ 299

One-way from

C$ 151

Popular in

August

Cheapest in

February

Average price

C$ 525
WestJet
  • WestJet
  • 10/10-12/10
  • 4 total stops
  • 32h 57m total
  • Las Vegas to Ottawa
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WestJet
  • WestJet
  • 8/10
  • 1 total stop
  • 8h 47m total
  • Las Vegas to Ottawa
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (C$ 146 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (C$ 39 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
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Find flight deals from Las Vegas to Ottawa

Cheapest flights from Las Vegas to Ottawa
Explore the most affordable flight options available from Las Vegas to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 September 2025.

Fri 10/109:10 p.m.LAS - YOW
2 stops18h 10mWestJet
Sun 12/107:50 a.m.YOW - LAS
2 stops14h 47mWestJet
Deal found 9/9C$ 299
Wed 8/108:00 a.m.LAS - YOW
2 stops13h 22mWestJet
Sun 12/103:45 p.m.YOW - LAS
1 stop8h 44mWestJet
Deal found 10/9C$ 346
Fri 10/106:20 p.m.LAS - YOW
1 stop27h 20mWestJet
Fri 17/105:15 p.m.YOW - LAS
1 stop29h 22mWestJet
Deal found 10/9C$ 384
Wed 24/98:00 a.m.LAS - YOW
1 stop27h 56mWestJet
Tue 30/95:55 a.m.YOW - LAS
2 stops14h 39mWestJet
Deal found 10/9C$ 395

Cheapflights Fare Finder

 
Customize your flight search to find flights from Las Vegas to Ottawa 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 11 September 2025.
Use the filters below to find and compare flights from Las Vegas to Ottawa that are best for you.

Fly from

Las Vegas

Fly to

Ottawa

Route

Depart

Return

Price

Las VegasOttawa

LAS - YOW

LASYOW

Las Vegas Harry Reid Intl

Fri 10/10

9:10 p.m.-6:20 p.m.

2 stops18h 10m

Ottawa

Sun 12/10

7:50 a.m.-7:37 p.m.

2 stops14h 47m

C$ 299

Las VegasOttawa

LAS - YOW

LASYOW

Las Vegas Harry Reid Intl

Wed 8/10

8:00 a.m.-12:22 a.m.

2 stops13h 22m

Ottawa

Sun 12/10

6:00 a.m.-3:01 p.m.

2 stops12h 01m

C$ 370

Las VegasOttawa

LAS - YOW

LASYOW

Las Vegas Harry Reid Intl

Fri 10/10

9:10 p.m.-6:20 p.m.

2 stops18h 10m

Ottawa

Fri 17/10

5:15 p.m.-7:37 p.m.

1 stop29h 22m

C$ 403

Las VegasOttawa

LAS - YOW

LASYOW

Las Vegas Harry Reid Intl

Thu 9/10

8:30 p.m.-12:22 a.m.

2 stops24h 52m

Ottawa

Thu 16/10

5:55 a.m.-9:29 p.m.

2 stops18h 34m

C$ 405

Las VegasOttawa

LAS - YOW

LASYOW

Las Vegas Harry Reid Intl

Thu 19/2

4:45 p.m.-6:43 a.m.

1 stop10h 58m

Ottawa

Sun 22/2

2:50 p.m.-8:49 p.m.

1 stop8h 59m

C$ 407

Las VegasOttawa

LAS - YOW

LASYOW

Las Vegas Harry Reid Intl

Wed 24/9

8:00 a.m.-12:22 a.m.

2 stops13h 22m

Ottawa

Tue 30/9

5:55 a.m.-5:34 p.m.

2 stops14h 39m

C$ 414

Las VegasOttawa

LAS - YOW

LASYOW

Las Vegas Harry Reid Intl

Wed 8/10

12:35 p.m.-12:22 a.m.

1 stop8h 47m

C$ 151

Las VegasOttawa

LAS - YOW

LASYOW

Las Vegas Harry Reid Intl

Fri 10/10

9:10 p.m.-12:40 a.m.

2 stops24h 30m

C$ 184

Las VegasOttawa

LAS - YOW

LASYOW

Las Vegas Harry Reid Intl

Wed 24/12

4:45 p.m.-6:43 a.m.

1 stop10h 58m

C$ 187

Las VegasOttawa

LAS - YOW

LASYOW

Las Vegas Harry Reid Intl

Fri 9/1

8:00 a.m.-12:40 a.m.

1 stop13h 40m

C$ 202

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/9

Showing 1-10 of 14 results
1
2

Best time to book a flight from Las Vegas to Ottawa

Have a flexible travel schedule? Discover the best time to fly to Ottawa from Las Vegas 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 Las Vegas to Ottawa

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

Currently, October is the cheapest month in which you can book a flight from Las Vegas to Ottawa (average of C$ 224). Flying from Las Vegas to Ottawa in December is currently the most expensive (average of C$ 326). 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 LAS to YOW?

Find hourly flight availability from Las Vegas to Ottawa. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 11 September 2025.

When flying from Las Vegas to Ottawa, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 74% versus a flight in the afternoon.

Reviews of airlines servicing Ottawa

Get insights into the airlines that provide service to Ottawa. 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 Ottawa. Reviews last updated 11 September 2025.
Get a feel of what it's like to fly with Porter Airlines from Las Vegas to Ottawa by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
7.9
Good
363 reviews
Check prices

Entertainment

7.0

Food

7.6

Boarding

8.1

Comfort

7.9

Overall

7.9

Crew

8.6

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
7.9
Good
363 reviews
Porter Airlines
7.9
Good
363 reviews
Check prices

Entertainment

7.0

Food

7.6

Boarding

8.1

Comfort

7.9

Overall

7.9

Crew

8.6

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

  • How popular is this Las Vegas to Ottawa flight route?

    This flight path from Las Vegas Harry Reid Intl to Ottawa was viewed by 7 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Las Vegas to Ottawa?

    A quick flight from Las Vegas to Ottawa can take about 18h 10m. WestJet provides one of the quickest options available for as low as C$ 299. The distance from Las Vegas to Ottawa is about 3442 km.

  • What is the cheapest airline to fly from Las Vegas to Ottawa round-trip?

    Porter Airlines, at C$ 357, was found to be the cheapest airline from Las Vegas to Ottawa.. Porter Airlines is priced at 23% lower than the current average price of a flight leaving 3 months from now.

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

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

  • How can I find direct flights from Las Vegas to Ottawa?

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

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

    Yes. Cheapflights offers flight deals from Las Vegas to Ottawa 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 Las Vegas to Ottawa?

    Currently, October is the cheapest month in which you can book a flight from Las Vegas to Ottawa (average of C$ 224). Flying from Las Vegas to Ottawa in December is currently the most expensive (average of C$ 326). 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

Travelling to a place near Ottawa?

Book flights to Ottawa if you plan to visit one of these locations
Gatineau
Brockville
Smiths Falls
Perth
Prescott
Pembroke
Wakefield

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Las Vegas to Ottawa

See prices for flight routes from nearby airports that may be better suited for you.
Las Vegas to Pearson Intl flights
Las Vegas to Pierre Elliott Trudeau Intl flights
Reno to Pearson Intl flights
Las Vegas to Hamilton flights
Las Vegas to Region of Waterloo Intl flights

Top airline flying from Las Vegas to Ottawa

Discover the top airline that operate flights from Las Vegas to Ottawa. 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 11 September 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapestC$ 357AverageC$ 758FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Las Vegas to Ottawa?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Ottawa from Las Vegas today with Cheapflights!

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Las Vegas to Ottawa.

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Las Vegas to Ottawa, users can toggle the no change fees filter when performing a flight search.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Ottawa from Las Vegas today and book when prices fit your budget.

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