Cheap flights from Ottawa to Las Vegas from C$ 171

If you’re not able to fly to Las Vegas in May, then June is your next best option. Flight prices from Ottawa to Las Vegas during June average around C$ 387.

The cheapest day to depart from Ottawa to Las Vegas is on a Monday. Travellers who choose to depart for Las Vegas on a Monday will often find tickets for as low as C$ 305. The most expensive day to fly to Las Vegas is Wednesday, with ticket prices averaging around C$ 455.

The cheapest time of day to fly to Las Vegas is in the morning when flights can be purchased for as low as C$ 377. Try not to purchase tickets in the afternoon because they tend to be around C$ 400. Of course, these prices can vary depending on the time of year and what airport you fly to.

Fly from Ottawa to Las Vegas Harry Reid Intl for the best Ottawa - Las Vegas Harry Reid Intl flight prices

You are more likely to see cheaper flights to Las Vegas from Ottawa when booking weeks ahead of your departure date. In general, you can expect to find flights to Las Vegas for around C$ 482 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Las Vegas from Ottawa for as low as C$ 372 on momondo.

There is only 1 cabin class available to choose from on Ottawa to Las Vegas Harry Reid Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 2% on your flight if you consider stops on a Ottawa to Las Vegas flight.

As of March 2026, prices for Ottawa to Las Vegas flights are approximately 47% more expensive when compared to flights at the same time last year.

WestJet, Delta, and Air Canada are the most popular carriers operating from Ottawa to Las Vegas Harry Reid Intl

Air Canada, Porter Airlines and WestJet are the top three most popular airlines that fly to Las Vegas from Ottawa according to our data. Air Canada is the first choice among our users, with 47% of people opting to fly with this airline when travelling to Las Vegas. Keep in mind that there are 8 different airlines that fly to Las Vegas on a routine basis, so you have a few additional options to choose from.

Historically, on average around 27% of flights between Ottawa and Las Vegas have experienced a delay on any given week. The average delay length over the past 12 months has been 162 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the evening have, in the past, seen delays more frequently in comparison.

Friday is statistically the day of the week that experiences the fewest delays on this flight route. Monday has historically seen more delays on average compared to the rest of the week.

According to our data, Porter Airlines has had the least delays on this route over the last 12 months, with about 27% of their flights experiencing any sort of delay.

Toronto (YYZ) was the most common stop: 95% of momondo users choosing one-stop flights on this route connected there.

Flights via Calgary (YYC) offer the lowest average round-trip price of C$ 330.

Flights connecting via Calgary (YYC) have the shortest average one-way travel time: 8h 54m.

Newark (EWR) has the shortest average layover time for this route: 2h 19m.