Cheap flights from Ottawa to Las Vegas from C$ 199
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 24/5. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — LAS
28 Apr — 5 May1
Round-trip
1 adult
Economy
Round-trip
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Ottawa to Las Vegas Harry Reid Intl are usually found in May or June, booked 84 days in advance, depart on a Monday or Thursday and return on a Monday
Cheap flight deals from Ottawa to Las Vegas
Enter your travel dates to find the best prices.
Cheapest
Best
Last-minute
One-way
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 29 March 2026.
Sun 10/56:00 a.m.
YOW
-
LAS
1 stop7h 45m
Air Canada
Sat 16/56:00 p.m.
LAS
-
YOW
1 stop9h 00m
Air Canada
Deal found 25/3C$ 268
Thu 4/65:20 p.m.
YOW
-
LAS
1 stop9h 33m
United Airlines
Mon 8/611:30 p.m.
LAS
-
YOW
1 stop11h 29m
United Airlines
Deal found 24/3C$ 310
Tue 28/410:44 a.m.
YOW
-
LAS
1 stop7h 35m
United Airlines
Tue 28/47:04 p.m.
LAS
-
YOW
2 stops11h 59m
United Airlines
Deal found 24/3C$ 314
Wed 22/43:10 p.m.
YOW
-
LAS
1 stop10h 05m
United Airlines
Tue 28/48:10 a.m.
LAS
-
YOW
1 stop7h 45m
United Airlines
Deal found 24/3C$ 322
Sun 26/41:20 p.m.
YOW
-
LAS
1 stop11h 20m
WestJet
Tue 5/51:20 p.m.
LAS
-
YOW
2 stops13h 15m
WestJet
Deal found 28/3C$ 328
Sun 10/57:20 a.m.
YOW
-
LAS
2 stops11h 25m
WestJet
Sat 16/56:10 p.m.
LAS
-
YOW
1 stop8h 25m
WestJet
Deal found 27/3C$ 329
Fri 5/61:20 p.m.
YOW
-
LAS
1 stop11h 20m
WestJet
Sun 7/66:10 p.m.
LAS
-
YOW
1 stop8h 25m
WestJet
Deal found 29/3C$ 332
Sat 25/45:40 a.m.
YOW
-
LAS
2 stops15h 33m
WestJet
Wed 29/41:20 p.m.
LAS
-
YOW
2 stops13h 15m
WestJet
Deal found 28/3C$ 336
Sat 13/612:25 p.m.
YOW
-
LAS
2 stops12h 15m
WestJet
Mon 15/66:10 p.m.
LAS
-
YOW
1 stop8h 25m
WestJet
Deal found 28/3C$ 338
Best flights from Ottawa to Las Vegas
Discover carefully curated flight deals from Ottawa to Las Vegas that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 29 March 2026.
Sat 13/610:00 a.m.
YOW
-
LAS
1 stop15h 19m
United Airlines
Mon 15/611:30 p.m.
LAS
-
YOW
1 stop11h 29m
United Airlines
Deal found 24/3C$ 322
Fri 24/43:10 p.m.
YOW
-
LAS
1 stop10h 05m
United Airlines
Mon 27/411:45 p.m.
LAS
-
YOW
1 stop7h 18m
United Airlines
Deal found 24/3C$ 322
Mon 1/67:30 p.m.
YOW
-
LAS
2 stops17h 12m
United Airlines
Thu 4/63:33 p.m.
LAS
-
YOW
2 stops19h 26m
United Airlines
Deal found 24/3C$ 322
Mon 13/45:25 p.m.
YOW
-
LAS
1 stop9h 34m
United Airlines
Fri 24/46:41 p.m.
LAS
-
YOW
2 stops16h 18m
United Airlines
Deal found 24/3C$ 322
Thu 4/65:20 p.m.
YOW
-
LAS
1 stop9h 33m
United Airlines
Mon 8/66:10 p.m.
LAS
-
YOW
2 stops12h 01m
United Airlines
Deal found 24/3C$ 324
Mon 29/63:10 p.m.
YOW
-
LAS
1 stop10h 28m
United Airlines
Wed 8/710:25 a.m.
LAS
-
YOW
1 stop8h 10m
United Airlines
Deal found 28/3C$ 386
Wed 19/86:00 p.m.
YOW
-
LAS
1 stop7h 53m
United Airlines
Sat 22/810:40 a.m.
LAS
-
YOW
1 stop7h 55m
United Airlines
Deal found 27/3C$ 389
Wed 24/610:44 a.m.
YOW
-
LAS
1 stop16h 09m
United Airlines
Wed 1/79:37 a.m.
LAS
-
YOW
2 stops11h 17m
United Airlines
Deal found 28/3C$ 389
Wed 15/410:44 a.m.
YOW
-
LAS
1 stop10h 43m
United Airlines
Mon 20/411:59 p.m.
LAS
-
YOW
1 stop14h 08m
United Airlines
Deal found 28/3C$ 390
Last-minute flights from Ottawa to Las Vegas
Discover last-minute flight deals from Ottawa to Las Vegas. Data last updated 29 March 2026 and is based on user searches.
Wed 22/46:00 a.m.
YOW
-
LAS
1 stop8h 21m
United Airlines
Thu 30/411:40 p.m.
LAS
-
YOW
1 stop7h 23m
United Airlines
Deal found 24/3C$ 322
Wed 22/410:55 a.m.
YOW
-
LAS
1 stop12h 40m
Air Canada
Wed 29/44:50 p.m.
LAS
-
YOW
1 stop10h 55m
Air Canada
Deal found 25/3C$ 367
Thu 23/45:45 p.m.
YOW
-
LAS
2 stops29h 31m
WestJet
Tue 28/41:20 p.m.
LAS
-
YOW
2 stops13h 15m
WestJet
Deal found 29/3C$ 351
Sat 25/45:40 a.m.
YOW
-
LAS
2 stops15h 33m
WestJet
Wed 29/41:20 p.m.
LAS
-
YOW
2 stops13h 15m
WestJet
Deal found 28/3C$ 336
Sun 26/41:20 p.m.
YOW
-
LAS
1 stop11h 20m
WestJet
Tue 5/51:20 p.m.
LAS
-
YOW
2 stops13h 15m
WestJet
Deal found 28/3C$ 328
Sun 26/41:20 p.m.
YOW
-
LAS
1 stop11h 20m
WestJet
Fri 1/56:10 p.m.
LAS
-
YOW
1 stop8h 25m
WestJet
Deal found 29/3C$ 340
Tue 28/410:44 a.m.
YOW
-
LAS
1 stop7h 35m
United Airlines
Tue 28/47:04 p.m.
LAS
-
YOW
2 stops11h 59m
United Airlines
Deal found 24/3C$ 314
Tue 28/46:55 a.m.
YOW
-
LAS
1 stop7h 45m
WestJet
Wed 29/46:10 p.m.
LAS
-
YOW
1 stop8h 25m
WestJet
Deal found 28/3C$ 353
One-way flights from Ottawa to Las Vegas
Search for one-way flight options from Ottawa to Las Vegas. Find affordable one-way fares based on user searches. Data last updated 29 March 2026.
Sun 24/56:00 a.m.
YOW
-
LAS
1 stop7h 45m
Air Canada
Deal found 25/3C$ 199
Sat 13/63:10 p.m.
YOW
-
LAS
2 stops11h 47m
United Airlines
Deal found 24/3C$ 201
Sun 24/57:20 a.m.
YOW
-
LAS
2 stops12h 15m
WestJet
Deal found 28/3C$ 208
Mon 18/56:55 a.m.
YOW
-
LAS
2 stops13h 20m
WestJet
Deal found 29/3C$ 214
Fri 24/45:25 p.m.
YOW
-
LAS
1 stop9h 34m
United Airlines
Deal found 29/3C$ 242
Sat 11/46:25 a.m.
YOW
-
LAS
1 stop9h 44m
Air Canada
Deal found 25/3C$ 254
Sun 10/56:00 a.m.
YOW
-
LAS
1 stop7h 45m
Air Canada
Deal found 26/3C$ 279
Mon 11/53:10 p.m.
YOW
-
LAS
2 stops12h 09m
United Airlines
Deal found 27/3C$ 281
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 29 March 2026.
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 29 March 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
Sat 13/6
10:00 a.m.-10:19 p.m.
1 stop15h 19m
Las Vegas Harry Reid Intl
Mon 15/6
11:30 p.m.-1:59 p.m.
1 stop11h 29m
C$ 322
OttawaLas Vegas
YOW - LAS
YOWLAS
Ottawa
Fri 24/4
3:10 p.m.-10:15 p.m.
1 stop10h 05m
Las Vegas Harry Reid Intl
Mon 27/4
11:45 p.m.-10:03 a.m.
1 stop7h 18m
C$ 322
OttawaLas Vegas
YOW - LAS
YOWLAS
Ottawa
Mon 1/6
7:30 p.m.-9:42 a.m.
2 stops17h 12m
Las Vegas Harry Reid Intl
Thu 4/6
3:33 p.m.-1:59 p.m.
2 stops19h 26m
C$ 322
OttawaLas Vegas
YOW - LAS
YOWLAS
Ottawa
Mon 13/4
5:25 p.m.-11:59 p.m.
1 stop9h 34m
Las Vegas Harry Reid Intl
Fri 24/4
6:41 p.m.-1:59 p.m.
2 stops16h 18m
C$ 322
OttawaLas Vegas
YOW - LAS
YOWLAS
Ottawa
Thu 4/6
5:20 p.m.-11:53 p.m.
1 stop9h 33m
Las Vegas Harry Reid Intl
Mon 8/6
6:10 p.m.-9:11 a.m.
2 stops12h 01m
C$ 324
OttawaLas Vegas
YOW - LAS
YOWLAS
Ottawa
Mon 29/6
3:10 p.m.-10:38 p.m.
1 stop10h 28m
Las Vegas Harry Reid Intl
Wed 8/7
10:25 a.m.-9:35 p.m.
1 stop8h 10m
C$ 386
Quickest round-trip
OttawaLas Vegas
YOW - LAS
YOWLAS
Ottawa
Wed 19/8
6:00 p.m.-10:53 p.m.
1 stop7h 53m
Las Vegas Harry Reid Intl
Sat 22/8
10:40 a.m.-9:35 p.m.
1 stop7h 55m
C$ 389
OttawaLas Vegas
YOW - LAS
YOWLAS
Ottawa
Wed 24/6
10:44 a.m.-11:53 p.m.
1 stop16h 09m
Las Vegas Harry Reid Intl
Wed 1/7
9:37 a.m.-11:54 p.m.
2 stops11h 17m
C$ 389
OttawaLas Vegas
YOW - LAS
YOWLAS
Ottawa
Wed 15/4
10:44 a.m.-6:27 p.m.
1 stop10h 43m
Las Vegas Harry Reid Intl
Mon 20/4
11:59 p.m.-5:07 p.m.
1 stop14h 08m
C$ 390
Cheapest one-way
OttawaLas Vegas
YOW - LAS
YOWLAS
Ottawa
Sun 24/5
6:00 a.m.-10:45 a.m.
1 stop7h 45m
C$ 200
Flights are sorted by cheapest round-trip flights first.
Deals found on 24/3
Showing 1-10 of 17 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.
YOW-LAS
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
Prices
Delays
More
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 13 March 2026.
The best time to book flights from Ottawa to Las Vegas is 84 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, May is the cheapest month in which you can book a flight from Ottawa to Las Vegas (average of C$ 192). Flying from Ottawa to Las Vegas in February is currently the most expensive (average of C$ 364). 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?
How often are flights from Ottawa to Las Vegas delayed?
About 27% of weekly flights between Ottawa and Las Vegas have experienced delays in the past year, with the average delay time being 162 minutes.
What is the most punctual flight time for Ottawa to Las Vegas flights?
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Friday tends to have the lowest number of delays on this route, whereas Monday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Ottawa to Las Vegas flights?
Over the past year, Porter Airlines has had the lowest number of delays on this route, with just 27% of flights being delayed.
What’s the top layover airport for flights from Ottawa to Las Vegas?
Share of one-stop round-trip flights from Ottawa to Las Vegas chosen by Cheapflights users in the past 12 months, using the same layover each way.
Toronto (YYZ) – chosen by Cheapflights users on 61% of one-stop itineraries from Ottawa to Las Vegas on Cheapflights.
What’s the cheapest layover airport for flights from Ottawa to Las Vegas?
Average round-trip fare for 1-stop flights from Ottawa to Las Vegas, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Vancouver (YVR) is the most affordable 1-stop option, with an average round-trip price of C$ 364.
What’s the fastest layover option from Ottawa to Las Vegas?
Shortest average travel time for 1-stop one-way flights from Ottawa to Las Vegas, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Montreal (YUL) have the shortest average one-way travel time for 1-stop routes: 7h 29m.
Which airport typically offers the quickest layover for flights from Ottawa to Las Vegas?
Average layover duration for 1-stop one-way flights from Ottawa to Las Vegas, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Montreal (YUL) offer the fastest connection on this route, with an average layover time of 1h 21m.
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 29 March 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.
I'm 6ft 4in. The seats don't have enough room. But was a good flight.
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 61 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$ 322, United Airlines can have you in Las Vegas from Ottawa in 15h 19m. Airlines will cover a distance of 3442 km.
What are the cheapest airlines flying from Ottawa to Las Vegas round-trip?
According to our current data, Air Canada (C$ 192), WestJet (C$ 286), and Porter Airlines (C$ 296) offers the cheapest pricing from Ottawa to Las Vegas. Users have found that Air Canada is 60% cheaper than the other options available to this destination.
What are the cheapest airlines to fly from Ottawa to Las Vegas one-way?
C$ 157 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$ 195 and C$ 236, 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$ 566, our data indicates the cheapest price to be C$ 476. The most popular route (Ottawa - Las Vegas Harry Reid Intl), is priced around C$ 375.
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, May is the cheapest month in which you can book a flight from Ottawa to Las Vegas (average of C$ 192). Flying from Ottawa to Las Vegas in February is currently the most expensive (average of C$ 364). 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.
Book flights to Las Vegas if you plan to visit one of these locations
Kingman
Boulder City
Henderson
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.
Airlines
Alternative routes
Complete your trip
Direct flights to Nevada
Flights by cabin class
Las Vegas flight routes
Other flight options
Other flights from Ottawa
Popular flights
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 29 March 2026.
Explore flights to Las Vegas departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 29 March 2026.
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 29 March 2026.
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.
We value your privacy
Cheapflights and its partners wish to use cookies or similar technologies to store and/or access information on and about your device and process personal data such as your IP address, device identifiers etc., in order to improve your experience on the site, to analyze navigation, to offer and measure personalized advertising, and to facilitate sharing on social networks. We also allow the use of third-party cookies (including those from our advertising partners) on our sites.
By clicking 'Accept', you consent to your data being processed by 0 vendors on this web site for the purposes described in this notice. You can review the vendors and their individual processing purposes on the .
To review individual processing purposes and cookie categories, please click ’Select individual purposes’. You can review and update your choices anytime by clicking the ’Privacy Preferences’ link in the page side navigation.