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$113+ 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 10/24. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — LAS
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
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 68 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 September 11, 2025.

Round-trip from

$270
(Kiwi.com)

One-way from

$113
(oojo)

Popular in

August

Cheapest in

January

Average price

$334
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. 7% potential increase in price ($26 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in September 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 September 11, 2025.

This FlightHub deal was found by Cheapflights users on 9/11. 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.
Thu 12/46:00 amYOW - LAS
2 stops17h 15mWestJet
Thu 12/119:15 pmLAS - YOW
2 stops16h 38mWestJet
Deal found 9/11$270
This Kiwi.com deal was found by Cheapflights users on 9/9. 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.
Sat 9/277:15 pmYOW - LAS
1 stop18h 25mWestJet
Sat 10/48:00 amLAS - YOW
1 stop19h 45mWestJet
Deal found 9/9$271
This WestJet deal was found by Cheapflights users on 9/9. 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/277:15 pmYOW - LAS
2 stops16h 53mWestJet
Fri 10/312:35 pmLAS - YOW
1 stop8h 47mWestJet
Deal found 9/9$272
This WestJet deal was found by Cheapflights users on 9/9. 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/215:15 pmYOW - LAS
2 stops20h 25mWestJet
Thu 10/21:25 pmLAS - YOW
2 stops14h 20mWestJet
Deal found 9/9$273
This Air Canada deal was found by Cheapflights users on 9/11. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/37:45 amYOW - LAS
1 stop11h 14mAir Canada
Tue 12/94:45 pmLAS - YOW
1 stop10h 58mAir Canada
Deal found 9/11$274
This FlightHub deal was found by Cheapflights users on 9/9. 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.
Mon 9/2912:20 pmYOW - LAS
2 stops12h 09mWestJet
Sun 10/59:10 pmLAS - YOW
2 stops16h 09mWestJet
Deal found 9/9$275
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 9/223:35 pmYOW - LAS
1 stop8h 54mMultiple Airlines
Mon 9/299:10 pmLAS - YOW
1 stop14h 34mMultiple Airlines
Deal found 9/9$276
This FlightHub deal was found by Cheapflights users on 9/11. 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.
Fri 12/125:40 amYOW - LAS
1 stop9h 18mWestJet
Sun 12/1411:25 pmLAS - YOW
1 stop22h 17mWestJet
Deal found 9/11$277
This FlightHub deal was found by Cheapflights users on 9/9. 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.
Fri 12/55:40 amYOW - LAS
2 stops17h 35mWestJet
Tue 12/97:05 pmLAS - YOW
1 stop26h 35mWestJet
Deal found 9/9$278
This FlightHub deal was found by Cheapflights users on 9/9. 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.
Sat 12/136:00 amYOW - LAS
1 stop15h 11mWestJet
Sun 12/149:15 pmLAS - YOW
2 stops24h 27mWestJet
Deal found 9/9$279
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Wed 12/33:10 pmYOW - LAS
1 stop11h 15mUnited Airlines
Mon 12/811:59 pmLAS - YOW
1 stop7h 27mUnited Airlines
Deal found 9/11$280
This FlightHub deal was found by Cheapflights users on 9/10. 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.
Sat 11/296:00 amYOW - LAS
2 stops17h 15mWestJet
Sat 12/69:15 pmLAS - YOW
2 stops16h 38mWestJet
Deal found 9/10$281

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 September 11, 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

Mon 9/29

6:00 am-9:29 pm

1 stop18h 29m

Las Vegas Harry Reid Intl

Fri 10/3

12:35 pm-12:22 am

1 stop8h 47m

$272

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Sun 9/21

5:15 pm-9:08 am

1 stop18h 53m

Las Vegas Harry Reid Intl

Sat 10/4

1:25 pm-6:45 am

2 stops14h 20m

$273

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Mon 11/3

11:10 am-11:52 pm

2 stops15h 42m

Las Vegas Harry Reid Intl

Mon 11/10

5:20 am-11:54 pm

2 stops15h 34m

$280

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Fri 12/12

5:55 pm-11:25 pm

1 stop8h 30m

Las Vegas Harry Reid Intl

Tue 12/16

9:52 am-9:56 pm

1 stop9h 04m

$280

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Wed 12/3

11:10 am-11:59 pm

2 stops15h 49m

Las Vegas Harry Reid Intl

Tue 12/9

12:59 am-5:12 pm

2 stops13h 13m

$280

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Wed 12/3

3:10 pm-11:25 pm

1 stop11h 15m

Las Vegas Harry Reid Intl

Mon 12/8

11:59 pm-10:26 am

1 stop7h 27m

$280

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Thu 11/6

11:10 am-11:52 pm

2 stops15h 42m

Las Vegas Harry Reid Intl

Sat 11/15

5:20 am-9:56 pm

2 stops13h 36m

$287

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Fri 11/14

2:15 pm-12:45 am

2 stops13h 30m

Las Vegas Harry Reid Intl

Mon 11/17

7:04 pm-10:26 am

2 stops12h 22m

$288

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Sat 11/29

6:20 am-11:28 am

1 stop8h 08m

Las Vegas Harry Reid Intl

Sat 12/6

2:10 pm-10:26 am

1 stop17h 16m

$288

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Sat 10/4

5:55 am-8:21 pm

2 stops17h 26m

Las Vegas Harry Reid Intl

Tue 10/7

8:00 am-12:22 am

2 stops13h 22m

$291

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 19 results
1
2

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 August 29, 2025.

The best time to book flights from Ottawa to Las Vegas is 68 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 September 11, 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.

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 September 11, 2025.
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
363 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.0

Overall

7.9

Comfort

7.9

Food

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Porter Airlines
7.9
Good
363 reviews
Porter Airlines
7.9
Good
363 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.0

Overall

7.9

Comfort

7.9

Food

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
United Airlines
7.4
Good
8,937 reviews
Porter Airlines
7.9
Good
363 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.0

Overall

7.9

Comfort

7.9

Food

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
WestJet
7.2
Good
3,091 reviews
Porter Airlines
7.9
Good
363 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.0

Overall

7.9

Comfort

7.9

Food

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Air Canada
7.1
Good
10,000 reviews
Porter Airlines
7.9
Good
363 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.0

Overall

7.9

Comfort

7.9

Food

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.

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.

  • How long is the flight from Ottawa to Las Vegas?

    For as low as $280, WestJet can have you in Las Vegas from Ottawa in 15h 42m. 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 $194 on this airline. Additional options worth looking into are WestJet and Air Canada, starting at $216 and $231 round-trip. Users have found that Porter Airlines is 40% 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, 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
Paradise
Henderson
North Las Vegas
Sunrise Manor
Winchester
Kingman
Primm
Mount Charleston
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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapest$194Average$312FlexibilityNo cancel feeOn-time52%
WestJetCheapest$216Average$313FlexibilityNo cancel feeOn-time60%
Air CanadaCheapest$231Average$358FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$244Average$444FlexibilityNo cancel feeOn-time69%

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