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$166+ 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 9/18. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — LAS
Aug 22 — Aug 291
Sat 8/22
Sat 8/29
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

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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 July 23, 2026.

This Booking.com deal was found by Cheapflights users on 7/19. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/101:20 pm
YOW
-
LAS
1 stop11h 20m
WestJet
Thu 9/176:10 pm
LAS
-
YOW
1 stop8h 25m
WestJet
Deal found 7/19$250
This Booking.com deal was found by Cheapflights users on 7/18. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/161:20 pm
YOW
-
LAS
1 stop11h 20m
WestJet
Sat 9/196:10 pm
LAS
-
YOW
1 stop8h 25m
WestJet
Deal found 7/18$267
This oojo deal was found by Cheapflights users on 7/20. 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 9/1012:25 pm
YOW
-
LAS
2 stops12h 15m
WestJet
Mon 9/146:10 pm
LAS
-
YOW
1 stop8h 25m
WestJet
Deal found 7/20$272
This Mytrip deal was found by Cheapflights users on 7/19. 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.
Sun 10/256:00 am
YOW
-
LAS
2 stops15h 39m
WestJet
Thu 10/298:00 am
LAS
-
YOW
2 stops13h 42m
WestJet
Deal found 7/19$276
This Booking.com deal was found by Cheapflights users on 7/19. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2812:25 pm
YOW
-
LAS
1 stop9h 05m
WestJet
Fri 10/26:10 pm
LAS
-
YOW
1 stop8h 25m
WestJet
Deal found 7/19$277
This Justfly.com deal was found by Cheapflights users on 7/19. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2612:25 pm
YOW
-
LAS
2 stops12h 15m
WestJet
Wed 9/306:10 pm
LAS
-
YOW
1 stop8h 25m
WestJet
Deal found 7/19$278
This Mytrip deal was found by Cheapflights users on 7/19. 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.
Sat 8/1512:25 pm
YOW
-
LAS
2 stops12h 15m
WestJet
Sat 8/226:10 pm
LAS
-
YOW
1 stop8h 25m
WestJet
Deal found 7/19$282

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 July 23, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$250
(Booking.com)

One-way from

$166
(Kiwi.com)

Popular in

August

Cheapest in

September

Average price

$455
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. 1% potential increase in price ($6 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 July 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 July 23, 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

Mon 8/17

8:15 pm-5:15 pm

1 stop24h 00m

Las Vegas Harry Reid Intl

Fri 8/21

8:30 am-12:20 am

2 stops12h 50m

$336
Quickest round-trip

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Mon 8/17

6:00 am-11:04 am

1 stop8h 04m

Las Vegas Harry Reid Intl

Fri 8/21

10:38 pm-9:11 am

1 stop7h 33m

$349

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Tue 8/25

6:00 am-4:02 pm

3 stops13h 02m

Las Vegas Harry Reid Intl

Thu 8/27

11:51 am-11:54 pm

2 stops9h 03m

$349

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Tue 8/4

7:30 pm-9:42 am

2 stops17h 12m

Las Vegas Harry Reid Intl

Sat 8/8

5:30 am-11:54 pm

2 stops15h 24m

$350

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Thu 8/13

6:00 am-4:02 pm

3 stops13h 02m

Las Vegas Harry Reid Intl

Tue 8/18

3:06 pm-9:11 am

2 stops15h 05m

$350

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Mon 9/7

6:00 am-11:04 am

1 stop8h 04m

Las Vegas Harry Reid Intl

Sat 9/26

9:00 am-9:35 pm

1 stop9h 35m

$397

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Thu 9/10

6:05 am-4:53 pm

1 stop13h 48m

Las Vegas Harry Reid Intl

Sat 9/26

6:00 am-5:16 pm

1 stop8h 16m

$397

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Sat 9/19

6:00 am-5:46 pm

3 stops14h 46m

Las Vegas Harry Reid Intl

Thu 9/24

7:49 pm-9:56 am

2 stops11h 07m

$397

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Wed 9/16

6:00 am-6:54 pm

3 stops15h 54m

Las Vegas Harry Reid Intl

Fri 9/18

12:59 am-4:38 pm

2 stops12h 39m

$397

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Sat 9/12

6:25 am-1:14 pm

1 stop9h 49m

Las Vegas Harry Reid Intl

Wed 9/23

1:23 pm-11:54 pm

1 stop7h 31m

$397

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/20

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

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 July.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust Score*3 stars
oojoPrice Accuracy3 starsTrust Score*2 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?

The best time to book flights from Ottawa to Las Vegas is 83 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, September is the cheapest month in which you can book a flight from Ottawa to Las Vegas (average of $333). Flying from Ottawa to Las Vegas in August is currently the most expensive (average of $463). 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?

Airfare is below average for this route at the moment.

Ottawa to Las Vegas flights typically cost between $370 and $602 in September.
The cheapest round-trip price found within the last 5 days was $250 on WestJet (Sep 10-Sep 17).

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 23, 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
448 reviews

Food

7.5

Crew

8.6

Overall

8.0

Comfort

8.0

Entertainment

6.9

Boarding

8.2

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats
Porter Airlines
8.0
Very good
448 reviews
Porter Airlines
8.0
Very good
448 reviews

Food

7.5

Crew

8.6

Overall

8.0

Comfort

8.0

Entertainment

6.9

Boarding

8.2

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats
United Airlines
7.4
Good
10,026 reviews
Porter Airlines
8.0
Very good
448 reviews

Food

7.5

Crew

8.6

Overall

8.0

Comfort

8.0

Entertainment

6.9

Boarding

8.2

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats
WestJet
7.2
Good
3,411 reviews
Porter Airlines
8.0
Very good
448 reviews

Food

7.5

Crew

8.6

Overall

8.0

Comfort

8.0

Entertainment

6.9

Boarding

8.2

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats
Air Canada
7.1
Good
11,373 reviews
Porter Airlines
8.0
Very good
448 reviews

Food

7.5

Crew

8.6

Overall

8.0

Comfort

8.0

Entertainment

6.9

Boarding

8.2

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats

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 $349, WestJet can have you in Las Vegas from Ottawa in 8h 04m. 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 United Airlines. Our recent data shows that you can find tickets from as low as $216 on this airline. Additional options worth looking into are WestJet and Air Canada, starting at $223 and $242 round-trip. Users have found that United Airlines is 47% 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, September is the cheapest month in which you can book a flight from Ottawa to Las Vegas (average of $333). Flying from Ottawa to Las Vegas in August is currently the most expensive (average of $463). 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 July 23, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$216Average$418FlexibilityNo cancel feeOn-time69%
WestJetCheapest$223Average$314FlexibilityNo cancel feeOn-time60%
Air CanadaCheapest$242Average$448FlexibilityNo cancel feeOn-time67%
Porter AirlinesCheapest$314Average$461FlexibilityNo cancel feeOn-time52%

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