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$133+ 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 7/9. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — LAS
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from Ottawa to Las Vegas Harry Reid Intl are usually found in January or May, 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 June 12, 2025.

Round-trip from

$223
(FlightHub)

One-way from

$133
(Kiwi.com)

Popular in

August

Cheapest in

January

Average price

$312
From Ottawa to Las Vegas Harry Reid Intl
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One-way flight from Ottawa to Las Vegas Harry Reid Intl
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Highest demand for flights based on searches. 10% potential increase in price ($38 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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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 June 12, 2025.

This FlightHub deal was found by Cheapflights users on 6/11. 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.
Wed 6/257:50 amYOW - LAS
2 stops15h 31mWestJet
Sat 6/281:25 pmLAS - YOW
2 stops13h 00mWestJet
Deal found 6/11$223
This Trip.com deal was found by Cheapflights users on 6/11. 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.
Sat 7/265:05 pmYOW - LAS
1 stop7h 50mPorter Airlines
Sat 8/29:55 amLAS - YOW
1 stop8h 16mPorter Airlines
Deal found 6/11$230
This Kiwi.com deal was found by Cheapflights users on 6/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/257:50 amYOW - LAS
2 stops15h 31mMultiple Airlines
Sat 6/289:55 amLAS - YOW
1 stop8h 06mMultiple Airlines
Deal found 6/11$245
This United Airlines deal was found by Cheapflights users on 6/11. 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.
Fri 10/315:14 pmYOW - LAS
1 stop7h 35mUnited Airlines
Fri 10/3112:59 amLAS - YOW
2 stops12h 16mUnited Airlines
Deal found 6/11$260

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 June 12, 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

Wed 6/25

7:50 am-8:21 pm

2 stops15h 31m

Las Vegas Harry Reid Intl

Sat 6/28

1:25 pm-5:25 am

2 stops13h 00m

$223

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Sat 7/26

5:05 pm-9:55 pm

1 stop7h 50m

Las Vegas Harry Reid Intl

Sat 8/2

9:55 am-9:11 pm

1 stop8h 16m

$230

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Wed 6/25

7:50 am-8:21 pm

2 stops15h 31m

Las Vegas Harry Reid Intl

Sat 6/28

9:55 am-9:01 pm

1 stop8h 06m

$245

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Fri 10/31

5:14 pm-9:49 pm

1 stop7h 35m

Las Vegas Harry Reid Intl

Fri 10/31

12:59 am-4:15 pm

2 stops12h 16m

$260

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Wed 7/9

3:45 pm-9:30 pm

1 stop8h 45m

$133

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Fri 10/31

6:10 pm-8:30 pm

Nonstop5h 20m

$135

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Mon 10/27

1:15 pm-8:34 pm

1 stop10h 19m

$155

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Fri 10/31

6:20 am-5:57 pm

2 stops14h 37m

$160

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Fri 9/26

12:20 pm-5:52 pm

3 stops32h 32m

$186

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

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 June 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 June 12, 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 June 12, 2025.
To help decide which airline to fly from Ottawa to Las Vegas, see what other customers have to say about Porter Airlines, United Airlines and WestJet. 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
288 reviews

Crew

8.7

Overall

8.0

Food

7.6

Comfort

8.1

Entertainment

7.0

Boarding

8.2

Reviews

1 / 20
4.0
Okay

Mary,Jun 2025

FLL - YYZ

Fort Lauderdale staff was not helpful at all to try to accommodate my husband and myself to sit together. Also very surprised to get charged USD53 for each of our checked luggage, as when we booked the tickets online, the website indicated that our first checked luggage will be charged CAD50!! Very misleading!!!
Porter Airlines
8.0
Very good
288 reviews
Porter Airlines
8.0
Very good
288 reviews

Crew

8.7

Overall

8.0

Food

7.6

Comfort

8.1

Entertainment

7.0

Boarding

8.2

Reviews

1 / 20
4.0
Okay

Mary,Jun 2025

FLL - YYZ

Fort Lauderdale staff was not helpful at all to try to accommodate my husband and myself to sit together. Also very surprised to get charged USD53 for each of our checked luggage, as when we booked the tickets online, the website indicated that our first checked luggage will be charged CAD50!! Very misleading!!!
United Airlines
7.4
Good
8,790 reviews
Porter Airlines
8.0
Very good
288 reviews

Crew

8.7

Overall

8.0

Food

7.6

Comfort

8.1

Entertainment

7.0

Boarding

8.2

Reviews

1 / 20
4.0
Okay

Mary,Jun 2025

FLL - YYZ

Fort Lauderdale staff was not helpful at all to try to accommodate my husband and myself to sit together. Also very surprised to get charged USD53 for each of our checked luggage, as when we booked the tickets online, the website indicated that our first checked luggage will be charged CAD50!! Very misleading!!!
WestJet
7.2
Good
2,868 reviews
Porter Airlines
8.0
Very good
288 reviews

Crew

8.7

Overall

8.0

Food

7.6

Comfort

8.1

Entertainment

7.0

Boarding

8.2

Reviews

1 / 20
4.0
Okay

Mary,Jun 2025

FLL - YYZ

Fort Lauderdale staff was not helpful at all to try to accommodate my husband and myself to sit together. Also very surprised to get charged USD53 for each of our checked luggage, as when we booked the tickets online, the website indicated that our first checked luggage will be charged CAD50!! Very misleading!!!
Air Canada
7.1
Good
9,537 reviews
Porter Airlines
8.0
Very good
288 reviews

Crew

8.7

Overall

8.0

Food

7.6

Comfort

8.1

Entertainment

7.0

Boarding

8.2

Reviews

1 / 20
4.0
Okay

Mary,Jun 2025

FLL - YYZ

Fort Lauderdale staff was not helpful at all to try to accommodate my husband and myself to sit together. Also very surprised to get charged USD53 for each of our checked luggage, as when we booked the tickets online, the website indicated that our first checked luggage will be charged CAD50!! Very misleading!!!

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 11 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 $223 on this airline. Additional options worth looking into are Porter Airlines and United Airlines, starting at $230 and $260 round-trip. Users have found that WestJet is 33% 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 $133. However, be on the lookout for offers from Porter Airlines and Air Canada, as they are both options that can get you from Ottawa to Las Vegas for a low price.

  • 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

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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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapest$195Average$316FlexibilityNo cancel feeOn-time52%
WestJetCheapest$216Average$340FlexibilityNo cancel feeOn-time60%
Air CanadaCheapest$231Average$346FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$244Average$429FlexibilityNo cancel feeOn-time69%

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