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Cheap flights from Ottawa to Las Vegas from C$ 231

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 16/10. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — LAS
27 Aug — 3 Sep1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Ottawa to Las Vegas Harry Reid Intl are usually found in September or November, booked 84 days in advance, depart on a Monday or Tuesday and return on a Monday

Cheap flight deals from Ottawa to Las Vegas

Enter your travel dates to find the best prices.

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 28 July 2026.

Fri 11/912:25 p.m.
YOW
-
LAS
2 stops12h 15m
WestJet
Fri 18/94:30 p.m.
LAS
-
YOW
1 stop10h 05m
WestJet
Deal found 27/7C$ 401
Sun 9/81:20 p.m.
YOW
-
LAS
1 stop11h 20m
WestJet
Thu 13/86:10 p.m.
LAS
-
YOW
1 stop8h 25m
WestJet
Deal found 24/7C$ 405
Sat 5/912:25 p.m.
YOW
-
LAS
2 stops12h 15m
WestJet
Sat 12/98:30 a.m.
LAS
-
YOW
2 stops24h 05m
WestJet
Deal found 27/7C$ 408
Tue 25/86:00 a.m.
YOW
-
LAS
1 stop9h 55m
WestJet
Tue 1/91:45 p.m.
LAS
-
YOW
1 stop7h 55m
WestJet
Deal found 26/7C$ 413
Thu 8/1012:25 p.m.
YOW
-
LAS
2 stops12h 15m
WestJet
Thu 15/104:30 p.m.
LAS
-
YOW
1 stop10h 05m
WestJet
Deal found 27/7C$ 415
Thu 13/81:20 p.m.
YOW
-
LAS
1 stop11h 20m
WestJet
Tue 18/81:45 p.m.
LAS
-
YOW
1 stop7h 55m
WestJet
Deal found 24/7C$ 416
Sun 16/81:20 p.m.
YOW
-
LAS
1 stop11h 20m
WestJet
Thu 20/81:45 p.m.
LAS
-
YOW
1 stop7h 55m
WestJet
Deal found 26/7C$ 417
Sat 15/81:20 p.m.
YOW
-
LAS
1 stop11h 20m
WestJet
Wed 19/86:10 p.m.
LAS
-
YOW
1 stop8h 25m
WestJet
Deal found 27/7C$ 419

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 28 July 2026.

Round-trip from

C$ 405

One-way from

C$ 231

Popular in

August

Cheapest in

September

Average price

C$ 650

Good round-trip deal

C$ 513 or less
WestJet
  • WestJet
  • 9/8-13/8
  • 2 total stops
  • 19h 45m total
  • Ottawa to Las Vegas
Search Deals
WestJet
  • WestJet
  • 16/10
  • 2 total stops
  • 12h 15m total
  • Ottawa to Las Vegas
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (C$ 44 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 20 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a round-trip flight from Ottawa to Las Vegas Harry Reid Intl.
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 629,999 searches. Data last updated 28 July 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

Thu 15/10

12:25 p.m.-9:40 p.m.

2 stops12h 15m

Las Vegas Harry Reid Intl

Mon 19/10

6:10 p.m.-5:35 a.m.

1 stop8h 25m

C$ 450

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Sun 18/10

7:20 a.m.-3:30 p.m.

1 stop11h 10m

Las Vegas Harry Reid Intl

Fri 23/10

4:30 p.m.-5:35 a.m.

1 stop10h 05m

C$ 463

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Thu 17/9

1:20 p.m.-9:40 p.m.

1 stop11h 20m

Las Vegas Harry Reid Intl

Tue 22/9

6:10 p.m.-5:35 a.m.

1 stop8h 25m

C$ 489

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Fri 28/8

5:20 p.m.-10:52 p.m.

1 stop8h 32m

Las Vegas Harry Reid Intl

Mon 31/8

11:57 p.m.-2:17 p.m.

1 stop11h 20m

C$ 491

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Tue 11/8

6:00 a.m.-6:12 p.m.

3 stops15h 12m

Las Vegas Harry Reid Intl

Fri 14/8

6:05 p.m.-9:56 a.m.

2 stops12h 51m

C$ 491

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Tue 25/8

6:00 a.m.-4:02 p.m.

3 stops13h 02m

Las Vegas Harry Reid Intl

Thu 27/8

11:51 a.m.-11:54 p.m.

2 stops9h 03m

C$ 492

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Sun 16/8

6:25 a.m.-2:44 p.m.

1 stop11h 19m

Las Vegas Harry Reid Intl

Mon 17/8

11:55 p.m.-1:59 p.m.

1 stop11h 04m

C$ 492
Quickest round-trip

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Mon 17/8

6:00 a.m.-11:04 a.m.

1 stop8h 04m

Las Vegas Harry Reid Intl

Fri 21/8

10:38 p.m.-9:11 a.m.

1 stop7h 33m

C$ 492

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Tue 18/8

6:00 a.m.-4:02 p.m.

3 stops13h 02m

Las Vegas Harry Reid Intl

Thu 20/8

11:57 p.m.-9:56 a.m.

1 stop6h 59m

C$ 492

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Thu 20/8

6:25 a.m.-4:02 p.m.

1 stop12h 37m

Las Vegas Harry Reid Intl

Mon 31/8

11:57 p.m.-9:56 a.m.

1 stop6h 59m

C$ 492

Flights are sorted by cheapest round-trip flights first.

Deals found on 24/7

Showing 1-10 of 18 resultsSorted by cheapest first
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?

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 C$ 471). Flying from Ottawa to Las Vegas in August is currently the most expensive (average of C$ 735). 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 C$ 557 and C$ 912 in August.
The cheapest round-trip price found within the last 5 days was C$ 405 on WestJet (9 Aug-13 Aug).

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 28 July 2026.
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.
Porter Airlines
8.0
Very good
449 reviews
Check prices

Crew

8.6

Boarding

8.2

Comfort

8.0

Overall

8.0

Food

7.5

Entertainment

6.9

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
449 reviews
Porter Airlines
8.0
Very good
449 reviews
Check prices

Crew

8.6

Boarding

8.2

Comfort

8.0

Overall

8.0

Food

7.5

Entertainment

6.9

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
10,048 reviews
Porter Airlines
8.0
Very good
449 reviews
Check prices

Crew

8.6

Boarding

8.2

Comfort

8.0

Overall

8.0

Food

7.5

Entertainment

6.9

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
3,415 reviews
Porter Airlines
8.0
Very good
449 reviews
Check prices

Crew

8.6

Boarding

8.2

Comfort

8.0

Overall

8.0

Food

7.5

Entertainment

6.9

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
11,401 reviews
Porter Airlines
8.0
Very good
449 reviews
Check prices

Crew

8.6

Boarding

8.2

Comfort

8.0

Overall

8.0

Food

7.5

Entertainment

6.9

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?

    This flight path from Ottawa to Las Vegas Harry Reid Intl was viewed by 5 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 C$ 491, WestJet can have you in Las Vegas from Ottawa in 8h 32m. Airlines will cover a distance of 3442 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    According to our current data, WestJet (C$ 308), United Airlines (C$ 343), and Air Canada (C$ 369) offers the cheapest pricing from Ottawa to Las Vegas. Users have found that WestJet is 47% cheaper than the other options available to this destination.

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

    C$ 159 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$ 191 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$ 574, our data indicates the cheapest price to be C$ 483. The most popular route (Ottawa - Las Vegas Harry Reid Intl), is priced around C$ 489.

  • 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 C$ 471). Flying from Ottawa to Las Vegas in August is currently the most expensive (average of C$ 735). 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 Las Vegas?

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

Browse thousands of different options on Cheapflights for your next trip

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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 28 July 2026.
WestJet flights from Ottawa to Las Vegas Harry Reid Intl
Air Canada 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 28 July 2026.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 308AverageC$ 479FlexibilityNo cancel feeOn-time60%
Search WestJet flights
United AirlinesCheapestC$ 343AverageC$ 569FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 369AverageC$ 659FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Porter AirlinesCheapestC$ 401AverageC$ 592FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
APG AirlinesCheapestC$ 564AverageC$ 767FlexibilityNo cancel feeOn-timeN/A
Search APG Airlines 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.

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