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$129+ 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 3/9. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — LAS
Feb 26 — Mar 51
Thu 2/26
Thu 3/5
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

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 May or June, booked 28 days in advance, depart on a Tuesday or Monday 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 January 27, 2026.

This Trip.com deal was found by Cheapflights users on 1/26. 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.
Mon 2/165:40 am
YOW
-
LAS
1 stop19h 32m
WestJet
Mon 3/28:05 am
LAS
-
YOW
2 stops13h 34m
WestJet
Deal found 1/26$238
This Air Canada deal was found by Cheapflights users on 1/26. 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.
Sat 5/306:00 am
YOW
-
LAS
1 stop7h 35m
Air Canada
Fri 6/56:45 am
LAS
-
YOW
1 stop11h 00m
Air Canada
Deal found 1/26$240
This Trip.com deal was found by Cheapflights users on 1/26. 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.
Mon 2/233:05 pm
YOW
-
LAS
1 stop9h 57m
Multiple Airlines
Mon 3/28:05 am
LAS
-
YOW
2 stops13h 34m
Multiple Airlines
Deal found 1/26$243
This FlightHub deal was found by Cheapflights users on 1/26. 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.
Thu 3/265:40 am
YOW
-
LAS
1 stop19h 32m
WestJet
Sun 3/2911:25 pm
LAS
-
YOW
1 stop22h 14m
WestJet
Deal found 1/26$244
This Trip.com deal was found by Cheapflights users on 1/26. 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.
Mon 2/163:05 pm
YOW
-
LAS
1 stop9h 57m
Multiple Airlines
Mon 3/28:05 am
LAS
-
YOW
2 stops13h 34m
Multiple Airlines
Deal found 1/26$249
This Air Canada deal was found by Cheapflights users on 1/26. 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.
Fri 2/205:45 am
YOW
-
LAS
1 stop8h 33m
Air Canada
Fri 2/279:00 am
LAS
-
YOW
1 stop8h 26m
Air Canada
Deal found 1/26$253
This FlightHub deal was found by Cheapflights users on 1/26. 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 5/36:25 pm
YOW
-
LAS
1 stop20h 15m
WestJet
Fri 5/88:30 am
LAS
-
YOW
2 stops12h 50m
WestJet
Deal found 1/26$259
This United Airlines deal was found by Cheapflights users on 1/26. 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.
Sun 5/32:40 pm
YOW
-
LAS
1 stop10h 33m
United Airlines
Fri 5/810:40 pm
LAS
-
YOW
1 stop7h 31m
United Airlines
Deal found 1/26$261
This Trip.com deal was found by Cheapflights users on 1/25. 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.
Fri 2/203:05 pm
YOW
-
LAS
1 stop9h 57m
Multiple Airlines
Fri 2/2711:25 pm
LAS
-
YOW
1 stop22h 14m
Multiple Airlines
Deal found 1/25$262
This Air Canada deal was found by Cheapflights users on 1/26. 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.
Tue 4/147:45 am
YOW
-
LAS
1 stop11h 13m
Air Canada
Thu 4/164:45 pm
LAS
-
YOW
1 stop11h 00m
Air Canada
Deal found 1/26$263
This oojo deal was found by Cheapflights users on 1/25. 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 4/15:40 am
YOW
-
LAS
2 stops41h 36m
WestJet
Wed 4/88:05 am
LAS
-
YOW
2 stops13h 34m
WestJet
Deal found 1/25$264

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 January 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$238
(Trip.com)

One-way from

$129
(oojo)

Popular in

December

Cheapest in

May

Average price

$282
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. 9% potential increase in price ($34 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 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 January 27, 2026.
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

Sat 4/18

7:45 am-3:53 pm

1 stop11h 08m

Las Vegas Harry Reid Intl

Sat 4/25

4:50 pm-6:45 am

1 stop10h 55m

$263

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Tue 4/14

7:45 am-3:58 pm

1 stop11h 13m

Las Vegas Harry Reid Intl

Thu 4/16

4:45 pm-6:45 am

1 stop11h 00m

$263

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Fri 3/27

5:40 am-10:12 pm

1 stop19h 32m

Las Vegas Harry Reid Intl

Sun 3/29

11:25 pm-12:39 am

1 stop22h 14m

$268

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Tue 4/14

10:44 am-3:19 pm

1 stop7h 35m

Las Vegas Harry Reid Intl

Thu 4/16

4:35 pm-10:03 am

2 stops14h 28m

$269

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Sat 4/18

3:10 pm-10:45 pm

1 stop10h 35m

Las Vegas Harry Reid Intl

Sat 4/25

7:10 pm-1:59 pm

2 stops15h 49m

$269

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Sat 2/14

7:30 pm-8:56 am

2 stops16h 26m

Las Vegas Harry Reid Intl

Tue 2/17

11:59 pm-5:07 pm

1 stop14h 08m

$284

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Fri 2/20

5:40 am-8:16 pm

2 stops17h 36m

Las Vegas Harry Reid Intl

Fri 2/27

11:25 pm-12:39 am

1 stop22h 14m

$329

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Thu 3/26

5:40 am-10:12 pm

1 stop19h 32m

Las Vegas Harry Reid Intl

Wed 4/1

12:40 pm-12:39 am

1 stop8h 59m

$340

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Tue 4/7

6:45 am-11:42 am

1 stop7h 57m

Las Vegas Harry Reid Intl

Sat 4/11

12:40 pm-12:41 am

1 stop9h 01m

$341

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Mon 3/9

5:40 am-6:13 pm

2 stops15h 33m

$129

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

Showing 1-10 of 15 results
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 January.
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 January 23, 2026.

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, February is the cheapest month in which you can book a flight from Ottawa to Las Vegas (average of $130). Flying from Ottawa to Las Vegas in August is currently the most expensive (average of $243). 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.

How much does it cost to fly round-trip from Ottawa to Las Vegas?

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 January 27, 2026.
Read reviews from past customers who have flown Porter Airlines, 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.
Porter Airlines
7.9
Good
412 reviews

Crew

8.6

Food

7.5

Entertainment

6.9

Overall

7.9

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
Porter Airlines
7.9
Good
412 reviews
Porter Airlines
7.9
Good
412 reviews

Crew

8.6

Food

7.5

Entertainment

6.9

Overall

7.9

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
United Airlines
7.4
Good
9,205 reviews
Porter Airlines
7.9
Good
412 reviews

Crew

8.6

Food

7.5

Entertainment

6.9

Overall

7.9

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
WestJet
7.2
Good
3,251 reviews
Porter Airlines
7.9
Good
412 reviews

Crew

8.6

Food

7.5

Entertainment

6.9

Overall

7.9

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
Air Canada
7.1
Good
10,660 reviews
Porter Airlines
7.9
Good
412 reviews

Crew

8.6

Food

7.5

Entertainment

6.9

Overall

7.9

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands 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 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 $269, Air Canada can have you in Las Vegas from Ottawa in 7h 35m. Ottawa and Las Vegas are separated by a distance of 2139 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Our cheapest airline available from Ottawa to Las Vegas is Porter Airlines. Our recent data shows that you can find tickets from as low as $180 on this airline. Additional options worth looking into are United Airlines and WestJet, starting at $216 and $216 round-trip. Users have found that Porter Airlines is 43% 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, February is the cheapest month in which you can book a flight from Ottawa to Las Vegas (average of $130). Flying from Ottawa to Las Vegas in August is currently the most expensive (average of $243). 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
North Las Vegas
Kingman
Winchester
Primm
Mesquite
Boulder City
Needles
Sunrise Manor

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 January 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapest$180Average$290FlexibilityNo cancel feeOn-time52%
United AirlinesCheapest$216Average$418FlexibilityNo cancel feeOn-time69%
WestJetCheapest$216Average$313FlexibilityNo cancel feeOn-time60%
Air CanadaCheapest$238Average$448FlexibilityNo cancel feeOn-time67%

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