Cheap flights from Ottawa to Las Vegas from C$ 216
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 4/10. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — LAS
27 Sep — 4 Oct1
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 March or September, 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 28 August 2026.
Thu 26/115:30 a.m. -
2 stops13h 25m
Thu 3/1211:50 a.m. -
1 stop9h 11m
Deal found 27/8C$ 320
Mon 23/115:30 a.m. -
2 stops13h 25m
Thu 3/1211:50 a.m. -
1 stop9h 11m
Deal found 27/8C$ 334
Mon 19/107:20 a.m. -
1 stop11h 10m
Wed 28/1012:50 p.m. -
1 stop9h 10m
Deal found 25/8C$ 337
Wed 2/125:30 a.m. -
2 stops13h 25m
Sun 6/129:35 a.m. -
2 stops11h 26m
Deal found 25/8C$ 340
Wed 18/114:15 p.m. -
1 stop21h 45m
Sun 22/119:35 a.m. -
2 stops11h 26m
Deal found 27/8C$ 348
Fri 23/107:20 a.m. -
1 stop11h 10m
Sat 31/1012:50 p.m. -
1 stop9h 10m
Deal found 26/8C$ 350
Sun 18/1012:25 p.m. -
2 stops12h 15m
Wed 21/106:10 p.m. -
1 stop8h 25m
Deal found 27/8C$ 361
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 28 August 2026.
Wed 2/122:48 p.m. -
1 stop9h 14m
Sun 6/1211:59 p.m. -
1 stop16h 28m
Deal found 25/8C$ 384
Sat 19/91:20 p.m. -
1 stop11h 20m
Wed 23/91:20 p.m. -
2 stops13h 15m
Deal found 27/8C$ 430
Sun 4/106:25 a.m. -
1 stop15h 18m
Wed 7/1011:25 p.m. -
1 stop6h 54m
Deal found 26/8C$ 433
Fri 4/126:15 a.m. -
2 stops20h 39m
Mon 7/1211:55 p.m. -
1 stop10h 31m
Deal found 26/8C$ 386
Fri 23/103:10 p.m. -
1 stop10h 44m
Mon 26/104:22 p.m. -
2 stops17h 49m
Deal found 25/8C$ 412
Fri 23/101:20 p.m. -
1 stop11h 20m
Thu 29/105:45 p.m. -
1 stop28h 15m
Deal found 24/8C$ 491
Tue 20/105:20 p.m. -
1 stop7h 53m
Tue 27/1011:59 p.m. -
1 stop11h 10m
Deal found 26/8C$ 412
Sat 19/96:25 a.m. -
1 stop8h 44m
Wed 23/911:50 p.m. -
1 stop14h 26m
Deal found 25/8C$ 437
Tue 13/106:25 a.m. -
1 stop17h 03m
Mon 19/1012:59 a.m. -
2 stops13h 17m
Deal found 27/8C$ 437
Sat 10/1010:00 a.m. -
1 stop13h 08m
Sat 17/106:19 p.m. -
2 stops12h 37m
Deal found 26/8C$ 438
Tue 8/96:00 a.m. -
3 stops16h 06m
Wed 9/911:57 p.m. -
1 stop6h 59m
Deal found 23/8C$ 492
Last-minute flights from Ottawa to Las Vegas
Discover last-minute flight deals from Ottawa to Las Vegas. Data last updated 28 August 2026 and is based on user searches.
Sat 12/91:20 p.m. -
1 stop11h 20m
Thu 17/94:30 p.m. -
1 stop10h 05m
Deal found 27/8C$ 390
Mon 14/97:20 a.m. -
1 stop11h 10m
Fri 18/96:10 p.m. -
1 stop8h 25m
Deal found 23/8C$ 366
Sun 20/91:20 p.m. -
1 stop11h 20m
Wed 23/91:20 p.m. -
2 stops13h 15m
Deal found 25/8C$ 368
Sun 20/912:25 p.m. -
2 stops12h 15m
Sat 26/98:30 a.m. -
2 stops12h 50m
Deal found 23/8C$ 398
Fri 25/91:20 p.m. -
1 stop11h 20m
Fri 2/104:30 p.m. -
1 stop10h 05m
Deal found 27/8C$ 363
Sat 26/91:20 p.m. -
1 stop11h 20m
Wed 30/96:10 p.m. -
1 stop8h 25m
Deal found 25/8C$ 365
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 28 August 2026.
Sun 4/107:20 a.m. -
1 stop11h 10m
Deal found 24/8C$ 216
Tue 20/105:50 p.m. -
1 stop7h 33m
Deal found 24/8C$ 227
Fri 2/104:00 p.m. -
1 stop9h 22m
Deal found 27/8C$ 233
Mon 14/97:20 a.m. -
2 stops11h 25m
Deal found 24/8C$ 236
Fri 23/1012:25 p.m. -
2 stops12h 15m
Deal found 23/8C$ 240
Thu 10/91:20 p.m. -
1 stop11h 20m
Deal found 27/8C$ 241
Tue 20/106:50 a.m. -
2 stops13h 25m
Deal found 24/8C$ 243
Sun 13/912:25 p.m. -
2 stops12h 15m
Deal found 25/8C$ 250
Tue 13/106:25 a.m. -
2 stops14h 40m
Deal found 25/8C$ 259
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 August 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 7,457,451 searches. Data last updated 28 August 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 Ottawa - LAS Las Vegas Harry Reid Intl
YOWLAS
Ottawa
Wed 2/12
2:48 p.m.-9:02 p.m.
1 stop9h 14m
Las Vegas Harry Reid Intl
Sun 6/12
11:59 p.m.-7:27 p.m.
1 stop16h 28m
C$ 384
OttawaLas Vegas
YOW Ottawa - LAS Las Vegas Harry Reid Intl
YOWLAS
Ottawa
Fri 4/12
6:15 a.m.-11:54 p.m.
2 stops20h 39m
Las Vegas Harry Reid Intl
Mon 7/12
11:55 p.m.-1:26 p.m.
1 stop10h 31m
C$ 386
OttawaLas Vegas
YOW Ottawa - LAS Las Vegas Harry Reid Intl
YOWLAS
Ottawa
Fri 23/10
3:10 p.m.-10:54 p.m.
1 stop10h 44m
Las Vegas Harry Reid Intl
Mon 26/10
4:22 p.m.-1:11 p.m.
2 stops17h 49m
C$ 412
Quickest round-trip
OttawaLas Vegas
YOW Ottawa - LAS Las Vegas Harry Reid Intl
YOWLAS
Ottawa
Tue 20/10
5:20 p.m.-10:13 p.m.
1 stop7h 53m
Las Vegas Harry Reid Intl
Tue 27/10
11:59 p.m.-2:09 p.m.
1 stop11h 10m
C$ 412
OttawaLas Vegas
YOW Ottawa - LAS Las Vegas Harry Reid Intl
YOWLAS
Ottawa
Sat 19/9
1:20 p.m.-9:40 p.m.
1 stop11h 20m
Las Vegas Harry Reid Intl
Wed 23/9
1:20 p.m.-5:35 a.m.
2 stops13h 15m
C$ 430
OttawaLas Vegas
YOW Ottawa - LAS Las Vegas Harry Reid Intl
YOWLAS
Ottawa
Sun 4/10
6:25 a.m.-6:43 p.m.
1 stop15h 18m
Las Vegas Harry Reid Intl
Wed 7/10
11:25 p.m.-9:19 a.m.
1 stop6h 54m
C$ 433
OttawaLas Vegas
YOW Ottawa - LAS Las Vegas Harry Reid Intl
YOWLAS
Ottawa
Sat 19/9
6:25 a.m.-12:09 p.m.
1 stop8h 44m
Las Vegas Harry Reid Intl
Wed 23/9
11:50 p.m.-5:16 p.m.
1 stop14h 26m
C$ 437
OttawaLas Vegas
YOW Ottawa - LAS Las Vegas Harry Reid Intl
YOWLAS
Ottawa
Tue 13/10
6:25 a.m.-8:28 p.m.
1 stop17h 03m
Las Vegas Harry Reid Intl
Mon 19/10
12:59 a.m.-5:16 p.m.
2 stops13h 17m
C$ 437
OttawaLas Vegas
YOW Ottawa - LAS Las Vegas Harry Reid Intl
YOWLAS
Ottawa
Sat 10/10
10:00 a.m.-8:08 p.m.
1 stop13h 08m
Las Vegas Harry Reid Intl
Sat 17/10
6:19 p.m.-9:56 a.m.
2 stops12h 37m
C$ 438
OttawaLas Vegas
YOW Ottawa - LAS Las Vegas Harry Reid Intl
YOWLAS
Ottawa
Fri 23/10
1:20 p.m.-9:40 p.m.
1 stop11h 20m
Las Vegas Harry Reid Intl
Thu 29/10
5:45 p.m.-1:00 a.m.
1 stop28h 15m
C$ 491
Flights are sorted by cheapest round-trip flights first.
Deals found on 27/8
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.
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
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, March is the cheapest month in which you can book a flight from Ottawa to Las Vegas (average of C$ 533). Flying from Ottawa to Las Vegas in August is currently the most expensive (average of C$ 705). 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$ 437 and C$ 741 in November.The cheapest round-trip price found within the last 5 days was C$ 320 on WestJet (26 Nov-3 Dec).
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.
Calgary (YYC) – chosen by Cheapflights users on 34% 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.
Newark (EWR) is the most affordable 1-stop option, with an average round-trip price of C$ 424.
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: 8h 02m.
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 Washington, D.C. (IAD) offer the fastest connection on this route, with an average layover time of 1h 34m.
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 August 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.
My first flight with an all female flight crew who were the best ever.
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$ 384, United Airlines can have you in Las Vegas from Ottawa in 9h 14m. 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$ 291), United Airlines (C$ 313), and Air Canada (C$ 349) offers the cheapest pricing from Ottawa to Las Vegas. Users have found that WestJet is 51% 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 Air Canada, with prices starting from C$ 187 and C$ 233, 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$ 565, our data indicates the cheapest price to be C$ 475. The most popular route (Ottawa - Las Vegas Harry Reid Intl), is priced around C$ 373.
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, March is the cheapest month in which you can book a flight from Ottawa to Las Vegas (average of C$ 533). Flying from Ottawa to Las Vegas in August is currently the most expensive (average of C$ 705). 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
Paradise
Kingman
North Las Vegas
Henderson
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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 August 2026.
Explore flights to Las Vegas departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 28 August 2026.
Discover the top 4 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 7,457,451 searches. Data last updated 28 August 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?
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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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