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$152+ 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 5/24. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — LAS
Apr 9 — Apr 161
Thu 4/9
Thu 4/16
1 adult, Economy
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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

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Cheapflights Tip: The best prices from Ottawa to Las Vegas Harry Reid Intl are usually found in May or June, booked 84 days in advance, depart on a Tuesday or Wednesday and return on a Monday

Cheap 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 March 10, 2026.

This oojo deal was found by Cheapflights users on 3/5. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/165:40 am
YOW
-
LAS
2 stops11h 18m
WestJet
Wed 4/228:05 am
LAS
-
YOW
2 stops13h 34m
WestJet
Deal found 3/5$218
This Trip.com deal was found by Cheapflights users on 3/5. 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 5/91:20 pm
YOW
-
LAS
1 stop11h 20m
WestJet
Fri 5/1512:35 pm
LAS
-
YOW
1 stop8h 45m
WestJet
Deal found 3/5$233
This FlightHub deal was found by Cheapflights users on 3/5. 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.
Sun 5/36:55 am
YOW
-
LAS
2 stops12h 40m
WestJet
Fri 5/86:10 pm
LAS
-
YOW
1 stop8h 25m
WestJet
Deal found 3/5$236
This oojo deal was found by Cheapflights users on 3/5. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/245:40 am
YOW
-
LAS
2 stops18h 53m
WestJet
Fri 5/18:30 am
LAS
-
YOW
2 stops12h 50m
WestJet
Deal found 3/5$244
This oojo deal was found by Cheapflights users on 3/5. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/2912:25 pm
YOW
-
LAS
2 stops12h 15m
WestJet
Mon 6/14:35 pm
LAS
-
YOW
2 stops22h 00m
WestJet
Deal found 3/5$252
This oojo deal was found by Cheapflights users on 3/5. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/126:00 am
YOW
-
LAS
2 stops12h 45m
WestJet
Thu 8/201:20 pm
LAS
-
YOW
2 stops13h 15m
WestJet
Deal found 3/5$255
This United Airlines deal was found by Cheapflights users on 3/5. 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 5/293:10 pm
YOW
-
LAS
1 stop10h 28m
United Airlines
Mon 6/111:30 pm
LAS
-
YOW
1 stop11h 29m
United Airlines
Deal found 3/5$258

Find 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 March 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$218
(oojo)

One-way from

$152
(Trip.com)

Popular in

December

Cheapest in

May

Average price

$339
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. 12% potential increase in price ($52 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

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 March 10, 2026.
Use the filters below to find and compare flights from Ottawa to Las Vegas that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Sun 5/24

10:44 am-9:54 pm

1 stop14h 10m

Las Vegas Harry Reid Intl

Sun 5/31

7:03 pm-1:59 pm

1 stop15h 56m

$265

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Wed 4/8

6:25 am-3:49 pm

2 stops12h 24m

Las Vegas Harry Reid Intl

Mon 4/13

7:04 pm-1:59 pm

2 stops15h 55m

$288

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Sat 4/4

6:25 am-6:27 pm

1 stop15h 02m

Las Vegas Harry Reid Intl

Wed 4/8

11:59 pm-5:07 pm

1 stop14h 08m

$288

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Thu 4/9

5:25 pm-8:22 am

2 stops17h 57m

Las Vegas Harry Reid Intl

Mon 4/13

7:04 pm-1:59 pm

2 stops15h 55m

$288

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Tue 4/14

3:10 pm-10:15 pm

1 stop10h 05m

Las Vegas Harry Reid Intl

Thu 4/16

4:57 pm-1:59 pm

2 stops18h 02m

$288

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Sat 5/30

10:44 am-7:57 pm

2 stops12h 13m

Las Vegas Harry Reid Intl

Thu 6/4

3:33 pm-1:59 pm

2 stops19h 26m

$320

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Thu 4/2

2:40 pm-10:13 pm

1 stop10h 33m

Las Vegas Harry Reid Intl

Tue 4/7

7:04 pm-5:07 pm

2 stops19h 03m

$372

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Wed 4/1

10:44 am-9:59 pm

2 stops14h 15m

Las Vegas Harry Reid Intl

Mon 4/6

11:22 pm-1:59 pm

1 stop11h 37m

$396

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Sun 5/31

3:10 pm-10:38 pm

1 stop10h 28m

Las Vegas Harry Reid Intl

Thu 6/4

7:03 pm-1:59 pm

1 stop15h 56m

$399
Quickest round-trip

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Wed 4/1

10:00 am-5:23 pm

2 stops10h 23m

Las Vegas Harry Reid Intl

Mon 4/20

7:04 pm-10:03 am

2 stops11h 59m

$399

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/5

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice 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 FlightHub the most. FlightHub 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 March 6, 2026.

The best time to book flights from Ottawa to Las Vegas is 84 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, May is the cheapest month in which you can book a flight from Ottawa to Las Vegas (average of $138). Flying from Ottawa to Las Vegas in February is currently the most expensive (average of $262). 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.

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 March 10, 2026.
Read reviews from past customers who have flown Porter Airlines,United Airlines, andWestJet 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.
Porter Airlines
8.0
Very good
423 reviews

Crew

8.6

Overall

8.0

Entertainment

7.0

Comfort

8.0

Boarding

8.2

Food

7.6

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
Porter Airlines
8.0
Very good
423 reviews
Porter Airlines
8.0
Very good
423 reviews

Crew

8.6

Overall

8.0

Entertainment

7.0

Comfort

8.0

Boarding

8.2

Food

7.6

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
United Airlines
7.4
Good
9,409 reviews
Porter Airlines
8.0
Very good
423 reviews

Crew

8.6

Overall

8.0

Entertainment

7.0

Comfort

8.0

Boarding

8.2

Food

7.6

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
WestJet
7.2
Good
3,288 reviews
Porter Airlines
8.0
Very good
423 reviews

Crew

8.6

Overall

8.0

Entertainment

7.0

Comfort

8.0

Boarding

8.2

Food

7.6

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
Air Canada
7.1
Good
10,800 reviews
Porter Airlines
8.0
Very good
423 reviews

Crew

8.6

Overall

8.0

Entertainment

7.0

Comfort

8.0

Boarding

8.2

Food

7.6

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.

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 2 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 Ottawa to Las Vegas?

    For as low as $265, United Airlines can have you in Las Vegas from Ottawa in 14h 10m. Ottawa and Las Vegas are separated by a distance of 2139 mi.

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

    Our cheapest airline available from Ottawa to Las Vegas is Air Canada. Our recent data shows that you can find tickets from as low as $140 on this airline. Additional options worth looking into are Porter Airlines and WestJet, starting at $189 and $207 round-trip. Users have found that Air Canada is 59% cheaper than the other options available to this destination.

  • 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, May is the cheapest month in which you can book a flight from Ottawa to Las Vegas (average of $138). Flying from Ottawa to Las Vegas in February is currently the most expensive (average of $262). 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
Paradise
Henderson
Mesquite
North Las Vegas
Kingman
Winchester
Boulder City
Needles
Sunrise Manor

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Ottawa to Las Vegas

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

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 March 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$140Average$448FlexibilityNo cancel feeOn-time67%
Porter AirlinesCheapest$189Average$315FlexibilityNo cancel feeOn-time52%
WestJetCheapest$207Average$313FlexibilityNo cancel feeOn-time60%
United AirlinesCheapest$216Average$418FlexibilityNo cancel feeOn-time69%

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