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Cheap flights from Ottawa to Las Vegas from C$ 183

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 28/5. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — LAS
16 Apr — 23 Apr1
1 adult

Cheapflights Tip: The best prices from Ottawa to Las Vegas Harry Reid Intl are usually found in January or February, booked 21 days in advance, depart on a Sunday or Monday and return on a Wednesday

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 11 April 2025.

Round-trip from

C$ 281

One-way from

C$ 183

Popular in

August

Cheapest in

January

Average price

C$ 455

Good round-trip deal

C$ 296 or less

Good one-way deal

C$ 209 or less
Porter Airlines
  • Porter Airlines
  • 28/4-7/5
  • Nonstop
  • 10h 05m total
  • Ottawa to Las Vegas
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WestJet
  • WestJet
  • 28/5
  • 1 total stop
  • 8h 45m total
  • Ottawa to Las Vegas
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (C$ 90 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease (C$ 17 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Price to beat on a round-trip flight from Ottawa to Las Vegas Harry Reid Intl.
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Price to beat on a one-way flight from Ottawa to Las Vegas Harry Reid Intl.
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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 11 April 2025.

Mon 28/46:10 p.m.YOW - LAS
Nonstop5h 30mPorter Airlines
Wed 7/512:20 p.m.LAS - YOW
Nonstop4h 35mPorter Airlines
Deal found 10/4C$ 281
Mon 12/512:20 p.m.YOW - LAS
1 stop9h 22mWestJet
Sat 17/56:20 p.m.LAS - YOW
1 stop9h 28mWestJet
Deal found 10/4C$ 291
Tue 29/42:45 p.m.YOW - LAS
1 stop9h 43mMultiple Airlines
Fri 2/511:30 a.m.LAS - YOW
1 stop10h 12mMultiple Airlines
Deal found 10/4C$ 319
Mon 28/46:33 a.m.YOW - LAS
1 stop9h 23mAir Canada
Wed 7/511:20 p.m.LAS - YOW
1 stop8h 05mAir Canada
Deal found 10/4C$ 326
Tue 29/410:25 a.m.YOW - LAS
2 stops14h 35mUnited Airlines
Fri 2/54:08 p.m.LAS - YOW
2 stops14h 50mUnited Airlines
Deal found 10/4C$ 348
Sun 11/59:05 a.m.YOW - LAS
Nonstop5h 20mAir Transat
Fri 16/512:20 p.m.LAS - YOW
Nonstop4h 35mAir Transat
Deal found 10/4C$ 379

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 629,999 searches. Data last updated 11 April 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 28/4

6:10 p.m.-8:40 p.m.

Nonstop5h 30m

Las Vegas Harry Reid Intl

Wed 7/5

12:20 p.m.-7:55 p.m.

Nonstop4h 35m

C$ 281

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Mon 12/5

12:20 p.m.-6:42 p.m.

1 stop9h 22m

Las Vegas Harry Reid Intl

Sat 17/5

6:20 p.m.-6:48 a.m.

1 stop9h 28m

C$ 291

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Tue 29/4

2:45 p.m.-9:28 p.m.

1 stop9h 43m

Las Vegas Harry Reid Intl

Fri 2/5

11:30 a.m.-12:42 a.m.

1 stop10h 12m

C$ 319

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Mon 28/4

6:33 a.m.-12:56 p.m.

1 stop9h 23m

Las Vegas Harry Reid Intl

Tue 6/5

12:59 a.m.-2:27 p.m.

2 stops10h 28m

C$ 326

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Tue 29/4

10:25 a.m.-10:00 p.m.

2 stops14h 35m

Las Vegas Harry Reid Intl

Fri 2/5

4:08 p.m.-9:58 a.m.

2 stops14h 50m

C$ 348

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Sun 11/5

9:05 a.m.-11:25 a.m.

Nonstop5h 20m

Las Vegas Harry Reid Intl

Fri 16/5

12:20 p.m.-7:55 p.m.

Nonstop4h 35m

C$ 379

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Mon 28/4

5:55 a.m.-4:06 p.m.

2 stops13h 11m

Las Vegas Harry Reid Intl

Wed 7/5

11:00 a.m.-12:22 a.m.

2 stops10h 22m

C$ 493

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Wed 28/5

3:45 p.m.-9:30 p.m.

1 stop8h 45m

C$ 183

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Sun 27/4

6:10 p.m.-8:40 p.m.

Nonstop5h 30m

C$ 202

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Sun 27/4

7:29 p.m.-10:52 a.m.

1 stop18h 23m

C$ 209

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/4

Showing 1-10 of 11 results
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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 4 April 2025.

The best time to book flights from Ottawa to Las Vegas is 21 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, January is the cheapest month in which you can book a flight from Ottawa to Las Vegas (average of C$ 212). Flying from Ottawa to Las Vegas in August is currently the most expensive (average of C$ 311). 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 11 April 2025.

It’s optimal to fly from Ottawa to Las Vegas in the morning. By choosing this option you can save up to 28% on the cost of your flight, compared to a flight at noon.

What is the cheapest day to fly from Ottawa to Las Vegas?

Use this chart to determine the cheapest time to fly round-trip from Ottawa to Las Vegas. Price data was last updated on 30 March 2025.

Travelers seeking maximum savings on their Ottawa to Las Vegas flight should consider departing on Saturday mornings when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Las Vegas by month

Plan your trip to Las Vegas by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Las Vegas ranges from 3.0 - 20.0 mm per month. February is typically the wettest month, when rainfall can reach 20.0 mm. May is typically the driest time to visit Las Vegas when rainfall is around 3.0 mm.

Temperature in Las Vegas by month

Plan your trip to Las Vegas by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Las Vegas, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 34.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 9.0 C).

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 11 April 2025.
To help decide which airline to fly from Ottawa to Las Vegas, see what other customers have to say about Porter Airlines, Delta and Air Transat. 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
280 reviews
Check prices

Boarding

8.2

Overall

8.0

Comfort

8.0

Entertainment

6.9

Food

7.6

Crew

8.7

Reviews

1 / 17
10.0
Excellent

Anonymous,Dec 2024

YYZ - LAS

Everything about the rescheduled (cost me $180) flight great. ***Being denied boarding because I was few minutes under 1.5 hours was not. Stuck at the Kiosk for about 15 minutes before it directed me to the Porter counter was strange. Do not know why checking in online at home was not successful? I think something was up...what can you do?
Porter Airlines
8.0
Very good
280 reviews
Porter Airlines
8.0
Very good
280 reviews
Check prices

Boarding

8.2

Overall

8.0

Comfort

8.0

Entertainment

6.9

Food

7.6

Crew

8.7

Reviews

1 / 17
10.0
Excellent

Anonymous,Dec 2024

YYZ - LAS

Everything about the rescheduled (cost me $180) flight great. ***Being denied boarding because I was few minutes under 1.5 hours was not. Stuck at the Kiosk for about 15 minutes before it directed me to the Porter counter was strange. Do not know why checking in online at home was not successful? I think something was up...what can you do?
Delta
8.0
Very good
7,910 reviews
Porter Airlines
8.0
Very good
280 reviews
Check prices

Boarding

8.2

Overall

8.0

Comfort

8.0

Entertainment

6.9

Food

7.6

Crew

8.7

Reviews

1 / 17
10.0
Excellent

Anonymous,Dec 2024

YYZ - LAS

Everything about the rescheduled (cost me $180) flight great. ***Being denied boarding because I was few minutes under 1.5 hours was not. Stuck at the Kiosk for about 15 minutes before it directed me to the Porter counter was strange. Do not know why checking in online at home was not successful? I think something was up...what can you do?
Air Transat
7.8
Good
385 reviews
Porter Airlines
8.0
Very good
280 reviews
Check prices

Boarding

8.2

Overall

8.0

Comfort

8.0

Entertainment

6.9

Food

7.6

Crew

8.7

Reviews

1 / 17
10.0
Excellent

Anonymous,Dec 2024

YYZ - LAS

Everything about the rescheduled (cost me $180) flight great. ***Being denied boarding because I was few minutes under 1.5 hours was not. Stuck at the Kiosk for about 15 minutes before it directed me to the Porter counter was strange. Do not know why checking in online at home was not successful? I think something was up...what can you do?
United Airlines
7.4
Good
8,636 reviews
Porter Airlines
8.0
Very good
280 reviews
Check prices

Boarding

8.2

Overall

8.0

Comfort

8.0

Entertainment

6.9

Food

7.6

Crew

8.7

Reviews

1 / 17
10.0
Excellent

Anonymous,Dec 2024

YYZ - LAS

Everything about the rescheduled (cost me $180) flight great. ***Being denied boarding because I was few minutes under 1.5 hours was not. Stuck at the Kiosk for about 15 minutes before it directed me to the Porter counter was strange. Do not know why checking in online at home was not successful? I think something was up...what can you do?
WestJet
7.2
Good
2,802 reviews
Porter Airlines
8.0
Very good
280 reviews
Check prices

Boarding

8.2

Overall

8.0

Comfort

8.0

Entertainment

6.9

Food

7.6

Crew

8.7

Reviews

1 / 17
10.0
Excellent

Anonymous,Dec 2024

YYZ - LAS

Everything about the rescheduled (cost me $180) flight great. ***Being denied boarding because I was few minutes under 1.5 hours was not. Stuck at the Kiosk for about 15 minutes before it directed me to the Porter counter was strange. Do not know why checking in online at home was not successful? I think something was up...what can you do?

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.

  • What airports do I use to fly from Ottawa to Las Vegas?

    Las Vegas Harry Reid Intl is the airport most travellers will use when flying to Las Vegas from Ottawa. Booking flights from Ottawa (YOW) to Harry Reid Intl (LAS) should be relatively easy as there is 1 daily flight to Las Vegas from 6 different airlines. 5h 20m is how long a flight from Ottawa to Las Vegas Harry Reid Intl will take if you book a nonstop flight.

  • How popular is this Ottawa to Las Vegas flight route?

    This flight path from Ottawa to Las Vegas Harry Reid Intl was viewed by 530 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?

    According to our current data, Porter Airlines (C$ 281), WestJet (C$ 291), and Air Canada (C$ 326) offers the cheapest pricing from Ottawa to Las Vegas. Users have found that Porter Airlines is 44% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Ottawa to Las Vegas one-way?

    C$ 183 is the cheapest one-way deal found within the past few days, from WestJet. You may also be able to find cheap deals on Air Transat and United Airlines, with prices starting from C$ 202 and C$ 209, respectively.

  • What are the cheapest flights from Ottawa to Las Vegas?

    Looking for the cheapest flight from Ottawa to Las Vegas? While on average our users pay C$ 306, our data indicates the cheapest price to be C$ 144. The most popular route (Ottawa - Las Vegas Harry Reid Intl), is priced around C$ 286.

  • Where are the most common layover locations when flying from Ottawa to Las Vegas?

    Flights departing from Ottawa and landing in Las Vegas layover in Toronto most frequently.

  • What are some popular things to do or see while on a layover in Toronto?

    The majority of Toronto visitors spend their time at Union Station, CN Tower, and Ripley's Aquarium of Canada. Union Station, CN Tower, and Ripley's Aquarium of Canada can be visited by travelling about 19.5 km, 19.1 km, and 19.2 km respectively from Toronto Pearson Intl. Those looking to explore during their layover in Toronto can rent a car from Toronto Pearson Intl for about C$ 38 per day.

  • Where are the least popular layover locations for Ottawa to Las Vegas flights?

    Ottawa to Las Vegas flights have a layover in Calgary the least frequently.

  • 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, January is the cheapest month in which you can book a flight from Ottawa to Las Vegas (average of C$ 212). Flying from Ottawa to Las Vegas in August is currently the most expensive (average of C$ 311). 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

Travelling to a place near Ottawa?

Book flights to Ottawa if you plan to visit one of these locations
Henderson
Boulder City
North Las Vegas
Paradise

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Fly from Ottawa to Las Vegas on these airlines

Choose from the following airlines for your flight from Ottawa to Las Vegas. Flights are based on user searches made on Cheapflights and were last updated on 11 April 2025.
Air Canada flights from Ottawa to Las Vegas Harry Reid Intl
WestJet flights from Ottawa to Las Vegas Harry Reid Intl
Flair Airlines flights from Ottawa to Las Vegas Harry Reid Intl

Top 6 airlines flying from Ottawa to Las Vegas

Discover the top 6 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 629,999 searches. Data last updated 11 April 2025.
AirlineCheapestAverageFlexibilityOn-time
Air TransatCheapestC$ 288AverageC$ 467FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Porter AirlinesCheapestC$ 290AverageC$ 460FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
WestJetCheapestC$ 311AverageC$ 510FlexibilityNo cancel feeOn-time60%
Search WestJet flights
United AirlinesCheapestC$ 327AverageC$ 539FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 348AverageC$ 644FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Flair AirlinesCheapestC$ 394AverageC$ 452FlexibilityNo cancel feeOn-timeN/A
Search Flair Airlines flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Ottawa to Las Vegas?

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Why should you use Cheapflights to find cheap flight tickets from Ottawa to Las Vegas?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Las Vegas from Ottawa.

Can Cheapflights find flights from Ottawa to Las Vegas with no change fees?

Need flexible booking options for your flight to Las Vegas from Ottawa? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Ottawa to Las Vegas become cheaper?

Yes! Start tracking prices for Ottawa to Las Vegas flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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