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Cheap flights from Ottawa to Las Vegas from C$ 207

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 29/7. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — LAS
7 Jul — 14 Jul1
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 2 July 2025.

Round-trip from

C$ 333

One-way from

C$ 207

Popular in

December

Cheapest in

January

Average price

C$ 499

Good round-trip deal

C$ 310 or less
WestJet
  • WestJet
  • 9/9-12/9
  • 4 total stops
  • 23h 59m total
  • Ottawa to Las Vegas
WestJet
  • WestJet
  • 29/7
  • 1 total stop
  • 8h 55m total
  • Ottawa to Las Vegas
Highest demand for flights based on searches. 0% potential increase in price (C$ 2 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease (C$ 12 potential savings vs. average RT price).
Average for round-trip flights in July 2025
Price to beat on a round-trip flight from Ottawa to Las Vegas Harry Reid Intl.

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 2 July 2025.

Tue 9/912:20 p.m.YOW - LAS
2 stops11h 01mWestJet
Fri 12/91:25 p.m.LAS - YOW
2 stops12h 58mWestJet
Deal found 30/6C$ 333
Thu 14/85:05 p.m.YOW - LAS
1 stop7h 50mPorter Airlines
Thu 21/810:55 p.m.LAS - YOW
1 stop8h 26mPorter Airlines
Deal found 30/6C$ 365
Tue 15/76:05 a.m.YOW - LAS
1 stop7h 54mUnited Airlines
Tue 23/912:59 a.m.LAS - YOW
2 stops17h 36mUnited Airlines
Deal found 1/7C$ 403
Sat 1/116:15 a.m.YOW - LAS
1 stop9h 04mMultiple Airlines
Sat 8/1110:35 p.m.LAS - YOW
1 stop7h 17mMultiple Airlines
Deal found 30/6C$ 407

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 2 July 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

Tue 9/9

12:20 p.m.-8:21 p.m.

2 stops11h 01m

Las Vegas Harry Reid Intl

Fri 12/9

1:25 p.m.-5:23 a.m.

2 stops12h 58m

C$ 333

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Thu 14/8

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

1 stop7h 50m

Las Vegas Harry Reid Intl

Thu 21/8

10:55 p.m.-10:21 a.m.

1 stop8h 26m

C$ 365

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Fri 8/8

6:33 a.m.-5:41 p.m.

1 stop14h 08m

Las Vegas Harry Reid Intl

Sat 9/8

12:10 a.m.-4:43 p.m.

1 stop13h 33m

C$ 402

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Sat 2/8

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

1 stop7h 50m

Las Vegas Harry Reid Intl

Mon 4/8

6:31 p.m.-12:48 a.m.

2 stops27h 17m

C$ 412

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Tue 29/7

3:35 p.m.-9:30 p.m.

1 stop8h 55m

C$ 207

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Fri 15/8

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

1 stop7h 50m

C$ 211

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Fri 15/8

7:00 a.m.-5:12 p.m.

2 stops13h 12m

C$ 230

Flights are sorted by cheapest round-trip flights first.

Deals found on 30/6

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 27 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 2 July 2025.

It’s optimal to fly from Ottawa to Las Vegas in the morning. By choosing this option you can save up to 30% 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 29 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.

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 2 July 2025.
Read through reviews of airlines operating flights from Ottawa to Las Vegas, such as Porter Airlines,United Airlines, andWestJet. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Boarding

8.2

Food

7.7

Overall

8.0

Crew

8.7

Entertainment

7.0

Comfort

8.1

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!!!

Boarding

8.2

Food

7.7

Overall

8.0

Crew

8.7

Entertainment

7.0

Comfort

8.1

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!!!

Boarding

8.2

Food

7.7

Overall

8.0

Crew

8.7

Entertainment

7.0

Comfort

8.1

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!!!

Boarding

8.2

Food

7.7

Overall

8.0

Crew

8.7

Entertainment

7.0

Comfort

8.1

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!!!

Boarding

8.2

Food

7.7

Overall

8.0

Crew

8.7

Entertainment

7.0

Comfort

8.1

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?

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

    According to our current data, WestJet (C$ 333), Porter Airlines (C$ 365), and United Airlines (C$ 402) offers the cheapest pricing from Ottawa to Las Vegas. Users have found that WestJet is 26% cheaper than the other options available to this destination.

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

    C$ 207 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 United Airlines, with prices starting from C$ 211 and C$ 237, 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$ 415, our data indicates the cheapest price to be C$ 292. The most popular route (Ottawa - Las Vegas Harry Reid Intl), is priced around C$ 352.

  • 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 2 July 2025.

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 2 July 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapestC$ 278AverageC$ 432FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air TransatCheapestC$ 279AverageC$ 436FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
WestJetCheapestC$ 285AverageC$ 421FlexibilityNo cancel feeOn-time60%
Search WestJet flights
United AirlinesCheapestC$ 308AverageC$ 458FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 321AverageC$ 559FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

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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.

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