HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Las Vegas

$123+ Cheap flights from Ottawa (YOW) to Las Vegas (LAS)

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 6/7. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — LAS
May 19 — May 261
Mon 5/19
Mon 5/26
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ottawa to Las Vegas with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Ottawa to Las Vegas Harry Reid Intl are usually found in January or February, booked 21 days in advance, depart on a Monday or Thursday and return on a Friday

Cheap flight deals from Ottawa to Las Vegas

Discover tips and strategies to find the most affordable flight options for your journey from Ottawa (YOW) to Las Vegas (LAS). 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 May 14, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$196
(Trip.com)

One-way from

$123
(Kiwi.com)

Popular in

August

Cheapest in

January

Average price

$294

Good round-trip deal

$180 or less
Provider with most accurate pricing for Ottawa-Las Vegas Harry Reid Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ottawa-Las Vegas Harry Reid Intl flights.
Search Deals
From Ottawa to Las Vegas Harry Reid Intl
Search Deals
One-way flight from Ottawa to Las Vegas Harry Reid Intl
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($40 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2025
Search Deals
Price to beat on a round-trip flight from Ottawa to Las Vegas Harry Reid Intl.
Search Deals

Find flight deals from Ottawa to Las Vegas

Cheapest flights from Ottawa to Las Vegas
Explore the most affordable flight options available from Ottawa to Las Vegas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 14, 2025.

This Trip.com deal was found by Cheapflights users on 5/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/13:45 pmYOW - LAS
1 stop8h 45mWestJet
Wed 6/46:20 pmLAS - YOW
1 stop9h 25mWestJet
Deal found 5/14$196
This Trip.com deal was found by Cheapflights users on 5/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/19:05 amYOW - LAS
Nonstop5h 20mMultiple Airlines
Wed 6/411:30 amLAS - YOW
1 stop10h 11mMultiple Airlines
Deal found 5/14$215
This FlightHub deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/309:05 amYOW - LAS
Nonstop5h 20mPorter Airlines
Fri 6/612:20 pmLAS - YOW
Nonstop4h 35mPorter Airlines
Deal found 5/13$216
This Air Canada deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/15:55 pmYOW - LAS
1 stop7h 35mAir Canada
Thu 6/511:20 pmLAS - YOW
1 stop6h 41mAir Canada
Deal found 5/13$224
This United Airlines deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/2310:25 amYOW - LAS
2 stops13h 37mUnited Airlines
Sat 7/2611:59 pmLAS - YOW
1 stop6h 59mUnited Airlines
Deal found 5/12$229
This Air Transat deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Transat is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/119:05 amYOW - LAS
Nonstop5h 20mAir Transat
Fri 6/1312:20 pmLAS - YOW
Nonstop4h 35mAir Transat
Deal found 5/13$381

Cheapflights Fare Finder

Customize your flight search to find flights from Ottawa to Las Vegas 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 2,558,603 searches. Data last updated May 14, 2025.
Use the filters below to find and compare flights from Ottawa to Las Vegas that are best for you.

Fly from

Ottawa

Fly to

Las Vegas

Route

Depart

Return

Price

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Sun 6/1

3:45 pm-9:30 pm

1 stop8h 45m

Las Vegas Harry Reid Intl

Wed 6/4

6:20 pm-6:45 am

1 stop9h 25m

$196

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Sun 6/1

9:05 am-11:25 am

Nonstop5h 20m

Las Vegas Harry Reid Intl

Wed 6/4

11:30 am-12:41 am

1 stop10h 11m

$215

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Fri 5/30

9:05 am-11:25 am

Nonstop5h 20m

Las Vegas Harry Reid Intl

Fri 6/6

12:20 pm-7:55 pm

Nonstop4h 35m

$216

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Sun 6/1

5:55 pm-10:30 pm

1 stop7h 35m

Las Vegas Harry Reid Intl

Thu 6/5

11:20 pm-9:01 am

1 stop6h 41m

$224

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Wed 7/23

10:25 am-9:02 pm

2 stops13h 37m

Las Vegas Harry Reid Intl

Sat 7/26

11:59 pm-9:58 am

1 stop6h 59m

$229

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Wed 6/11

9:05 am-11:25 am

Nonstop5h 20m

Las Vegas Harry Reid Intl

Fri 6/13

12:20 pm-7:55 pm

Nonstop4h 35m

$381

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Sat 6/7

3:45 pm-9:30 pm

1 stop8h 45m

$123

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Fri 6/6

4:40 pm-9:58 pm

1 stop8h 18m

$127

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Sun 8/24

6:33 am-11:16 am

1 stop7h 43m

$141

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Mon 6/30

5:15 pm-11:35 pm

3 stops33h 20m

$217

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/13

Compare providers for flights from Ottawa to Las Vegas

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ottawa to Las Vegas in May.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*2 stars
ExpediaPrice Accuracy1 starTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
oojoPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Ottawa-Las Vegas flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ottawa-Las Vegas flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ottawa-Las Vegas flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ottawa-Las Vegas flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ottawa-Las Vegas flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Ottawa to Las Vegas

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

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

Use this chart to determine the optimal time to book a round-trip flight from Ottawa to Las Vegas. Price data was last updated on May 9, 2025.

The best time to book flights from Ottawa to Las Vegas is 21 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, August is the cheapest month in which you can book a flight from Ottawa to Las Vegas (average of $198). Flying from Ottawa to Las Vegas in March is currently the most expensive (average of $269). 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 YOW to LAS?

Find hourly flight availability from Ottawa to Las Vegas. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 14, 2025.

It’s optimal to fly from Ottawa to Las Vegas in the morning. By choosing this option you can save up to 36% on the cost of your flight, compared to a flight at noon.

Rainfall in Las Vegas by month

Plan your trip to Las Vegas by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Las Vegas ranges from 0.1 - 0.8 inches per month. February is typically the wettest month, when rainfall can reach 0.8 in. May is typically the driest time to visit Las Vegas when rainfall is around 0.1 in.

Temperature in Las Vegas by month

Plan your trip to Las Vegas by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Las Vegas, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 93.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).

Reviews of airlines servicing Las Vegas

Get insights into the airlines that provide service to Las Vegas. 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 Las Vegas. Reviews last updated May 14, 2025.
To help decide which airline to fly from Ottawa to Las Vegas, see what other customers have to say about Porter Airlines, Air Transat and United Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
286 reviews

Boarding

8.2

Overall

8.0

Food

7.6

Comfort

8.1

Crew

8.7

Entertainment

7.0

Reviews

1 / 18
10.0
Excellent

Anonymous,Apr 2025

MCO - YHZ

A good flight and the crew was very nice. Thank you
Porter Airlines
8.0
Very good
286 reviews
Porter Airlines
8.0
Very good
286 reviews

Boarding

8.2

Overall

8.0

Food

7.6

Comfort

8.1

Crew

8.7

Entertainment

7.0

Reviews

1 / 18
10.0
Excellent

Anonymous,Apr 2025

MCO - YHZ

A good flight and the crew was very nice. Thank you
Air Transat
7.8
Good
387 reviews
Porter Airlines
8.0
Very good
286 reviews

Boarding

8.2

Overall

8.0

Food

7.6

Comfort

8.1

Crew

8.7

Entertainment

7.0

Reviews

1 / 18
10.0
Excellent

Anonymous,Apr 2025

MCO - YHZ

A good flight and the crew was very nice. Thank you
United Airlines
7.4
Good
8,730 reviews
Porter Airlines
8.0
Very good
286 reviews

Boarding

8.2

Overall

8.0

Food

7.6

Comfort

8.1

Crew

8.7

Entertainment

7.0

Reviews

1 / 18
10.0
Excellent

Anonymous,Apr 2025

MCO - YHZ

A good flight and the crew was very nice. Thank you
WestJet
7.2
Good
2,841 reviews
Porter Airlines
8.0
Very good
286 reviews

Boarding

8.2

Overall

8.0

Food

7.6

Comfort

8.1

Crew

8.7

Entertainment

7.0

Reviews

1 / 18
10.0
Excellent

Anonymous,Apr 2025

MCO - YHZ

A good flight and the crew was very nice. Thank you
Air Canada
7.0
Good
9,333 reviews
Porter Airlines
8.0
Very good
286 reviews

Boarding

8.2

Overall

8.0

Food

7.6

Comfort

8.1

Crew

8.7

Entertainment

7.0

Reviews

1 / 18
10.0
Excellent

Anonymous,Apr 2025

MCO - YHZ

A good flight and the crew was very nice. Thank you

Related info for your journey

Find useful and relevant information for your journey from Ottawa to Las Vegas. 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 Ottawa to Las Vegas flight route?

    The Ottawa to Las Vegas Harry Reid Intl flight path was viewed by 9 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • What are the cheapest airlines flying from Ottawa to Las Vegas round-trip?

    Our cheapest airline available from Ottawa to Las Vegas is WestJet. Our recent data shows that you can find tickets from as low as $196 on this airline. Additional options worth looking into are Porter Airlines and Air Canada, starting at $202 and $224 round-trip. Users have found that WestJet is 43% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Ottawa to Las Vegas one-way?

    The cheapest airline one-way is WestJet, with whom users have recently found tickets for as low as $123. However, be on the lookout for offers from Porter Airlines and United Airlines, as they are both options that can get you from Ottawa to Las Vegas for a low price.

  • What are the cheapest flights from Ottawa to Las Vegas?

    The cheapest flight price from Ottawa to Las Vegas is $180. On average you can expect to pay $220. The most popular route, (Ottawa - Las Vegas Harry Reid Intl), can usually be booked for $198.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Ottawa to Las Vegas (average of $198). Flying from Ottawa to Las Vegas in March is currently the most expensive (average of $269). 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

Traveling to a place near Ottawa?

Book flights to Ottawa if you plan to visit one of these locations
Henderson
Paradise
North Las Vegas
Sunrise Manor
Winchester
Primm
Mount Charleston
Kingman
Mesquite
Needles
Boulder City

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 4 airlines flying from Ottawa to Las Vegas

Discover the top 4 airlines that operate flights from Ottawa to Las Vegas. 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 2,558,603 searches. Data last updated May 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapest$194Average$315FlexibilityNo cancel feeOn-time52%
WestJetCheapest$216Average$348FlexibilityNo cancel feeOn-time60%
United AirlinesCheapest$234Average$434FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$237Average$386FlexibilityNo cancel feeOn-time67%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.