Cheap flights from Ottawa to Las Vegas from C$ 243
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 15/10. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — LAS
20 Jul — 27 Jul1
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 September or October, 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.
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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 20 June 2026.
Thu 10/912:25 p.m.
YOW
-
LAS
2 stops12h 15m
WestJet
Wed 16/91:20 p.m.
LAS
-
YOW
2 stops13h 15m
WestJet
Deal found 16/6C$ 413
Mon 12/106:55 a.m.
YOW
-
LAS
2 stops13h 20m
WestJet
Thu 15/101:20 p.m.
LAS
-
YOW
2 stops13h 15m
WestJet
Deal found 16/6C$ 425
Sun 25/106:00 a.m.
YOW
-
LAS
2 stops15h 39m
WestJet
Wed 28/1011:20 a.m.
LAS
-
YOW
1 stop10h 25m
WestJet
Deal found 19/6C$ 426
Fri 23/101:20 p.m.
YOW
-
LAS
1 stop11h 20m
WestJet
Wed 28/1011:20 a.m.
LAS
-
YOW
1 stop10h 25m
WestJet
Deal found 15/6C$ 430
Sun 20/912:25 p.m.
YOW
-
LAS
2 stops12h 15m
WestJet
Fri 25/96:10 p.m.
LAS
-
YOW
1 stop8h 25m
WestJet
Deal found 16/6C$ 435
Fri 23/101:20 p.m.
YOW
-
LAS
1 stop11h 20m
WestJet
Tue 27/108:00 a.m.
LAS
-
YOW
2 stops13h 42m
WestJet
Deal found 15/6C$ 439
Fri 9/107:20 a.m.
YOW
-
LAS
2 stops11h 25m
WestJet
Mon 12/107:20 p.m.
LAS
-
YOW
2 stops26h 00m
WestJet
Deal found 17/6C$ 443
Thu 10/97:20 a.m.
YOW
-
LAS
2 stops11h 25m
WestJet
Mon 14/97:20 p.m.
LAS
-
YOW
2 stops26h 00m
WestJet
Deal found 16/6C$ 446
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 20 June 2026.
Sun 4/107:20 a.m.
YOW
-
LAS
2 stops15h 35m
WestJet
Wed 7/106:10 p.m.
LAS
-
YOW
1 stop8h 25m
WestJet
Deal found 18/6C$ 474
Tue 8/1211:00 a.m.
YOW
-
LAS
2 stops12h 19m
United Airlines
Thu 10/129:50 p.m.
LAS
-
YOW
1 stop15h 25m
United Airlines
Deal found 18/6C$ 508
Mon 2/116:00 p.m.
YOW
-
LAS
1 stop17h 42m
United Airlines
Mon 9/1110:30 p.m.
LAS
-
YOW
1 stop7h 41m
United Airlines
Deal found 17/6C$ 512
Fri 17/76:25 p.m.
YOW
-
LAS
2 stops25h 50m
WestJet
Fri 24/76:10 p.m.
LAS
-
YOW
2 stops20h 25m
WestJet
Deal found 19/6C$ 558
Sat 11/75:20 p.m.
YOW
-
LAS
1 stop7h 34m
United Airlines
Sat 18/79:56 a.m.
LAS
-
YOW
1 stop9h 09m
United Airlines
Deal found 19/6C$ 565
Sat 8/86:25 p.m.
YOW
-
LAS
2 stops25h 50m
WestJet
Tue 11/86:10 p.m.
LAS
-
YOW
2 stops27h 10m
WestJet
Deal found 19/6C$ 594
Wed 22/76:25 a.m.
YOW
-
LAS
1 stop15h 08m
United Airlines
Wed 29/78:48 a.m.
LAS
-
YOW
1 stop12h 06m
United Airlines
Deal found 15/6C$ 570
Last-minute flights from Ottawa to Las Vegas
Discover last-minute flight deals from Ottawa to Las Vegas. Data last updated 20 June 2026 and is based on user searches.
Thu 9/76:25 p.m.
YOW
-
LAS
2 stops30h 15m
WestJet
Sun 12/78:30 a.m.
LAS
-
YOW
2 stops30h 05m
WestJet
Deal found 16/6C$ 569
Sat 11/75:20 p.m.
YOW
-
LAS
1 stop7h 34m
United Airlines
Sat 18/79:56 a.m.
LAS
-
YOW
1 stop9h 09m
United Airlines
Deal found 19/6C$ 565
Mon 13/76:25 p.m.
YOW
-
LAS
2 stops21h 05m
WestJet
Thu 16/78:30 a.m.
LAS
-
YOW
2 stops12h 50m
WestJet
Deal found 18/6C$ 504
Wed 15/76:55 a.m.
YOW
-
LAS
2 stops13h 20m
WestJet
Wed 22/76:10 p.m.
LAS
-
YOW
2 stops20h 25m
WestJet
Deal found 17/6C$ 514
Thu 16/76:55 a.m.
YOW
-
LAS
2 stops17h 45m
WestJet
Tue 21/76:10 p.m.
LAS
-
YOW
2 stops20h 25m
WestJet
Deal found 16/6C$ 548
Fri 17/76:25 p.m.
YOW
-
LAS
2 stops25h 50m
WestJet
Fri 24/76:10 p.m.
LAS
-
YOW
2 stops20h 25m
WestJet
Deal found 19/6C$ 558
Tue 21/76:55 a.m.
YOW
-
LAS
2 stops13h 20m
WestJet
Sat 25/76:10 p.m.
LAS
-
YOW
2 stops20h 25m
WestJet
Deal found 19/6C$ 524
Wed 22/76:25 a.m.
YOW
-
LAS
1 stop15h 08m
United Airlines
Wed 29/78:48 a.m.
LAS
-
YOW
1 stop12h 06m
United Airlines
Deal found 15/6C$ 570
Thu 23/76:55 a.m.
YOW
-
LAS
2 stops17h 45m
WestJet
Tue 28/76:10 p.m.
LAS
-
YOW
2 stops20h 25m
WestJet
Deal found 19/6C$ 559
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 20 June 2026.
Thu 15/101:20 p.m.
YOW
-
LAS
1 stop11h 20m
WestJet
Deal found 16/6C$ 243
Thu 17/912:25 p.m.
YOW
-
LAS
2 stops12h 15m
WestJet
Deal found 19/6C$ 245
Wed 16/93:10 p.m.
YOW
-
LAS
1 stop10h 41m
United Airlines
Deal found 19/6C$ 283
Wed 4/115:45 p.m.
YOW
-
LAS
2 stops20h 30m
WestJet
Deal found 18/6C$ 286
Mon 20/76:55 a.m.
YOW
-
LAS
2 stops13h 20m
WestJet
Deal found 18/6C$ 289
Fri 10/76:25 p.m.
YOW
-
LAS
2 stops30h 15m
WestJet
Deal found 17/6C$ 323
Sat 11/76:05 a.m.
YOW
-
LAS
2 stops14h 46m
United Airlines
Deal found 15/6C$ 327
Wed 15/76:55 a.m.
YOW
-
LAS
2 stops13h 20m
WestJet
Deal found 15/6C$ 335
Fri 10/76:55 a.m.
YOW
-
LAS
1 stop18h 27m
Multiple Airlines
Deal found 17/6C$ 343
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 20 June 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 20 June 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
Sun 4/10
7:20 a.m.-7:55 p.m.
2 stops15h 35m
Las Vegas Harry Reid Intl
Wed 7/10
6:10 p.m.-5:35 a.m.
1 stop8h 25m
C$ 474
OttawaLas Vegas
YOW - LAS
YOWLAS
Ottawa
Tue 8/12
11:00 a.m.-8:19 p.m.
2 stops12h 19m
Las Vegas Harry Reid Intl
Thu 10/12
9:50 p.m.-4:15 p.m.
1 stop15h 25m
C$ 508
OttawaLas Vegas
YOW - LAS
YOWLAS
Ottawa
Mon 2/11
6:00 p.m.-8:42 a.m.
1 stop17h 42m
Las Vegas Harry Reid Intl
Mon 9/11
10:30 p.m.-9:11 a.m.
1 stop7h 41m
C$ 512
OttawaLas Vegas
YOW - LAS
YOWLAS
Ottawa
Fri 17/7
6:25 p.m.-5:15 p.m.
2 stops25h 50m
Las Vegas Harry Reid Intl
Fri 24/7
6:10 p.m.-5:35 p.m.
2 stops20h 25m
C$ 558
Quickest round-trip
OttawaLas Vegas
YOW - LAS
YOWLAS
Ottawa
Sat 11/7
5:20 p.m.-9:54 p.m.
1 stop7h 34m
Las Vegas Harry Reid Intl
Sat 18/7
9:56 a.m.-10:05 p.m.
1 stop9h 09m
C$ 565
OttawaLas Vegas
YOW - LAS
YOWLAS
Ottawa
Wed 22/7
6:25 a.m.-6:33 p.m.
1 stop15h 08m
Las Vegas Harry Reid Intl
Wed 29/7
8:48 a.m.-11:54 p.m.
1 stop12h 06m
C$ 570
OttawaLas Vegas
YOW - LAS
YOWLAS
Ottawa
Sat 8/8
6:25 p.m.-5:15 p.m.
2 stops25h 50m
Las Vegas Harry Reid Intl
Tue 11/8
6:10 p.m.-12:20 a.m.
2 stops27h 10m
C$ 594
Cheapest one-way
OttawaLas Vegas
YOW - LAS
YOWLAS
Ottawa
Thu 15/10
1:20 p.m.-9:40 p.m.
1 stop11h 20m
C$ 243
OttawaLas Vegas
YOW - LAS
YOWLAS
Ottawa
Wed 16/9
6:25 a.m.-8:04 p.m.
2 stops16h 39m
C$ 283
OttawaLas Vegas
YOW - LAS
YOWLAS
Ottawa
Wed 4/11
5:45 p.m.-11:15 a.m.
2 stops20h 30m
C$ 286
Flights are sorted by cheapest round-trip flights first.
Deals found on 16/6
Showing 1-10 of 14 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?
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 May is currently the most expensive (average of C$ 631). 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 5% of weekly flights between Ottawa and Las Vegas have experienced delays in the past year, with the average delay time being 107 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 morning tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Wednesday tends to have the lowest number of delays on this route, whereas Sunday 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 5% 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 57% 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.
Washington, D.C. (IAD) is the most affordable 1-stop option, with an average round-trip price of C$ 393.
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 31m.
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 14m.
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 20 June 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.
Staff very nice. Seats were uncomfortable. Complimentary snacks leave much to be desired.
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 13 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$ 508, WestJet can have you in Las Vegas from Ottawa in 12h 19m. 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$ 311), United Airlines (C$ 313), and Air Canada (C$ 368) offers the cheapest pricing from Ottawa to Las Vegas. Users have found that WestJet 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$ 194 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$ 201 and C$ 244, 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$ 576, our data indicates the cheapest price to be C$ 485. The most popular route (Ottawa - Las Vegas Harry Reid Intl), is priced around C$ 473.
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 May is currently the most expensive (average of C$ 631). 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
North Las Vegas
Henderson
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 20 June 2026.
Explore flights to Las Vegas departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 20 June 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 20 June 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.
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