Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Ottawa to Las Vegas from C$ 182

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 9/7. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — LAS
17 Jun — 24 Jun1
1 adult

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

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 12 June 2025.

Round-trip from

C$ 305

One-way from

C$ 182

Popular in

August

Cheapest in

January

Average price

C$ 427

Good round-trip deal

C$ 310 or less
WestJet
  • WestJet
  • 25/6-28/6
  • 4 total stops
  • 28h 31m total
  • Ottawa to Las Vegas
Search Deals
WestJet
  • WestJet
  • 9/7
  • 1 total stop
  • 8h 45m total
  • Ottawa to Las Vegas
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (C$ 70 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2025
Search Deals
Price to beat on a round-trip flight from Ottawa to Las Vegas Harry Reid Intl.
Search Deals

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 12 June 2025.

Wed 25/67:50 a.m.YOW - LAS
2 stops15h 31mWestJet
Sat 28/61:25 p.m.LAS - YOW
2 stops13h 00mWestJet
Deal found 11/6C$ 305
Sat 26/75:05 p.m.YOW - LAS
1 stop7h 50mPorter Airlines
Sat 2/89:55 a.m.LAS - YOW
1 stop8h 16mPorter Airlines
Deal found 11/6C$ 314
Wed 25/67:50 a.m.YOW - LAS
2 stops15h 31mMultiple Airlines
Sat 28/69:55 a.m.LAS - YOW
1 stop8h 06mMultiple Airlines
Deal found 11/6C$ 335
Fri 31/105:14 p.m.YOW - LAS
1 stop7h 35mUnited Airlines
Fri 31/1012:59 a.m.LAS - YOW
2 stops12h 16mUnited Airlines
Deal found 11/6C$ 355

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 12 June 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

Wed 25/6

7:50 a.m.-8:21 p.m.

2 stops15h 31m

Las Vegas Harry Reid Intl

Sat 28/6

1:25 p.m.-5:25 a.m.

2 stops13h 00m

C$ 305

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Sat 26/7

5:05 p.m.-9:55 p.m.

1 stop7h 50m

Las Vegas Harry Reid Intl

Sat 2/8

9:55 a.m.-9:11 p.m.

1 stop8h 16m

C$ 314

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Wed 25/6

7:50 a.m.-8:21 p.m.

2 stops15h 31m

Las Vegas Harry Reid Intl

Sat 28/6

9:55 a.m.-9:01 p.m.

1 stop8h 06m

C$ 335

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Sat 28/6

5:25 p.m.-9:52 p.m.

1 stop7h 27m

Las Vegas Harry Reid Intl

Tue 1/7

11:59 p.m.-9:58 a.m.

1 stop6h 59m

C$ 354

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Thu 6/11

1:15 p.m.-8:34 p.m.

1 stop10h 19m

Las Vegas Harry Reid Intl

Tue 11/11

4:50 p.m.-4:57 a.m.

1 stop9h 07m

C$ 440

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Wed 9/7

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

1 stop8h 45m

C$ 182

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Fri 31/10

6:10 p.m.-8:30 p.m.

Nonstop5h 20m

C$ 185

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Mon 27/10

1:15 p.m.-8:34 p.m.

1 stop10h 19m

C$ 212

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Fri 31/10

6:20 a.m.-5:57 p.m.

2 stops14h 37m

C$ 219

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Fri 26/9

12:20 p.m.-5:52 p.m.

3 stops32h 32m

C$ 254

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/6

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 9 June 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 12 June 2025.

It’s optimal to fly from Ottawa to Las Vegas in the morning. By choosing this option you can save up to 31% 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 8 June 2025.

Travelers seeking maximum savings on their Ottawa to Las Vegas flight should consider departing on Wednesday evenings 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 12 June 2025.
To help decide which airline to fly from Ottawa to Las Vegas, see what other customers have to say about Porter Airlines, United Airlines and WestJet. 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
288 reviews
Check prices

Food

7.6

Boarding

8.2

Comfort

8.1

Overall

8.0

Entertainment

7.0

Crew

8.7

Reviews

1 / 20
4.0
Okay

Mary,Jun 2025

FLL - YYZ

Fort Lauderdale staff was not helpful at all to try to accommodate my husband and myself to sit together. Also very surprised to get charged USD53 for each of our checked luggage, as when we booked the tickets online, the website indicated that our first checked luggage will be charged CAD50!! Very misleading!!!
Porter Airlines
8.0
Very good
288 reviews
Porter Airlines
8.0
Very good
288 reviews
Check prices

Food

7.6

Boarding

8.2

Comfort

8.1

Overall

8.0

Entertainment

7.0

Crew

8.7

Reviews

1 / 20
4.0
Okay

Mary,Jun 2025

FLL - YYZ

Fort Lauderdale staff was not helpful at all to try to accommodate my husband and myself to sit together. Also very surprised to get charged USD53 for each of our checked luggage, as when we booked the tickets online, the website indicated that our first checked luggage will be charged CAD50!! Very misleading!!!
United Airlines
7.4
Good
8,790 reviews
Porter Airlines
8.0
Very good
288 reviews
Check prices

Food

7.6

Boarding

8.2

Comfort

8.1

Overall

8.0

Entertainment

7.0

Crew

8.7

Reviews

1 / 20
4.0
Okay

Mary,Jun 2025

FLL - YYZ

Fort Lauderdale staff was not helpful at all to try to accommodate my husband and myself to sit together. Also very surprised to get charged USD53 for each of our checked luggage, as when we booked the tickets online, the website indicated that our first checked luggage will be charged CAD50!! Very misleading!!!
WestJet
7.2
Good
2,868 reviews
Porter Airlines
8.0
Very good
288 reviews
Check prices

Food

7.6

Boarding

8.2

Comfort

8.1

Overall

8.0

Entertainment

7.0

Crew

8.7

Reviews

1 / 20
4.0
Okay

Mary,Jun 2025

FLL - YYZ

Fort Lauderdale staff was not helpful at all to try to accommodate my husband and myself to sit together. Also very surprised to get charged USD53 for each of our checked luggage, as when we booked the tickets online, the website indicated that our first checked luggage will be charged CAD50!! Very misleading!!!
Air Canada
7.1
Good
9,531 reviews
Porter Airlines
8.0
Very good
288 reviews
Check prices

Food

7.6

Boarding

8.2

Comfort

8.1

Overall

8.0

Entertainment

7.0

Crew

8.7

Reviews

1 / 20
4.0
Okay

Mary,Jun 2025

FLL - YYZ

Fort Lauderdale staff was not helpful at all to try to accommodate my husband and myself to sit together. Also very surprised to get charged USD53 for each of our checked luggage, as when we booked the tickets online, the website indicated that our first checked luggage will be charged CAD50!! Very misleading!!!

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?

    This flight path from Ottawa to Las Vegas Harry Reid Intl was viewed by 555 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, WestJet (C$ 305), Porter Airlines (C$ 314), and United Airlines (C$ 354) offers the cheapest pricing from Ottawa to Las Vegas. Users have found that WestJet is 33% cheaper than the other options available to this destination.

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

    C$ 182 is the cheapest one-way deal found within the past few days, from WestJet. You may also be able to find cheap deals on Porter Airlines and Air Canada, with prices starting from C$ 185 and C$ 212, 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$ 377, our data indicates the cheapest price to be C$ 272. The most popular route (Ottawa - Las Vegas Harry Reid Intl), is priced around C$ 306.

  • 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

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.

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 12 June 2025.
Air Canada flights from Ottawa to Las Vegas Harry Reid Intl
WestJet flights from Ottawa to Las Vegas Harry Reid Intl

Top 5 airlines flying from Ottawa to Las Vegas

Discover the top 5 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 12 June 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapestC$ 279AverageC$ 435FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air TransatCheapestC$ 280AverageC$ 437FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
WestJetCheapestC$ 285AverageC$ 434FlexibilityNo cancel feeOn-time60%
Search WestJet flights
United AirlinesCheapestC$ 309AverageC$ 482FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 324AverageC$ 581FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

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

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Las Vegas from Ottawa today with Cheapflights!

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.