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$146+ 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 10/9. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — LAS
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
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 28 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 July 29, 2025.

Round-trip from

$253
(Mytrip)

One-way from

$146
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$346
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. 1% potential increase in price ($5 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 29, 2025.

This Mytrip deal was found by Cheapflights users on 7/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/113:45 pmYOW - LAS
1 stop8h 44mWestJet
Thu 9/186:20 pmLAS - YOW
1 stop9h 25mWestJet
Deal found 7/27$253
This Trip.com deal was found by Cheapflights users on 7/27. 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 8/305:50 pmYOW - LAS
1 stop18h 11mUnited Airlines
Mon 9/110:45 pmLAS - YOW
1 stop8h 13mUnited Airlines
Deal found 7/27$300
This Kiwi.com deal was found by Cheapflights users on 7/28. 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.
Mon 9/295:55 amYOW - LAS
1 stop8h 44mMultiple Airlines
Mon 10/67:30 pmLAS - YOW
1 stop16h 14mMultiple Airlines
Deal found 7/28$302

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 July 29, 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

Thu 9/11

3:45 pm-9:29 pm

1 stop8h 44m

Las Vegas Harry Reid Intl

Thu 9/18

6:20 pm-6:45 am

1 stop9h 25m

$253

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Sat 8/30

5:50 pm-9:01 am

1 stop18h 11m

Las Vegas Harry Reid Intl

Mon 9/1

10:45 pm-9:58 am

1 stop8h 13m

$300

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Mon 9/29

5:55 am-11:39 am

1 stop8h 44m

Las Vegas Harry Reid Intl

Mon 10/6

7:30 pm-2:44 pm

1 stop16h 14m

$302

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Thu 10/9

7:50 am-8:21 pm

2 stops15h 31m

$146

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Mon 12/15

2:50 pm-8:39 pm

1 stop8h 49m

$193

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Wed 9/24

5:55 am-9:09 pm

3 stops18h 14m

$194

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Mon 12/15

9:45 am-5:03 pm

2 stops10h 18m

$199

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Thu 8/7

5:55 am-5:36 pm

2 stops14h 41m

$416

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

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 July 25, 2025.

The best time to book flights from Ottawa to Las Vegas is 28 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 July 29, 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.

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 July 29, 2025.
Read reviews from past customers who have flown Delta, United Airlines, and WestJet from Ottawa to Las Vegas. 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.
Delta
8.0
Very good
7,977 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Delta
8.0
Very good
7,977 reviews
Delta
8.0
Very good
7,977 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
United Airlines
7.4
Good
8,899 reviews
Delta
8.0
Very good
7,977 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
WestJet
7.2
Good
2,973 reviews
Delta
8.0
Very good
7,977 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Air Canada
7.1
Good
9,822 reviews
Delta
8.0
Very good
7,977 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.

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 $253 on this airline. An additional option worth looking into is United Airlines, starting at $300. Users have found that WestJet is 21% 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 $146. However, be on the lookout for offers from Air Canada and United Airlines, 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 Las Vegas?

Book flights to Las Vegas if you plan to visit one of these locations
Henderson
Paradise
Sunrise Manor
North Las Vegas
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 July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapest$195Average$314FlexibilityNo cancel feeOn-time52%
WestJetCheapest$216Average$313FlexibilityNo cancel feeOn-time60%
Air CanadaCheapest$231Average$358FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$244Average$448FlexibilityNo cancel feeOn-time69%

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