Cheap flights from Las Vegas to Ontario from C$ 159

In general, January is the cheapest month to fly from Las Vegas to Region of Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 399. If you are unable to visit Region of Ontario during the month of January, then departing from Las Vegas during the month April is also very affordable. Most momondo users find prices during this month for around C$ 409.

The cheapest day to depart from Las Vegas to Region of Ontario is on a Saturday. Travellers who choose to depart for Region of Ontario on a Saturday will often find tickets for as low as C$ 174. The most expensive day to fly to Region of Ontario is Thursday, with ticket prices averaging around C$ 389.

Our most recent data shows that the best time of day to fly to Region of Ontario is in the evening. Flights from Las Vegas to Region of Ontario during this time can be as low as C$ 216. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are C$ 351 on average. Flights to Region of Ontario from Las Vegas in the morning are generally more expensive because this time of day is more convenient for travellers’ schedules.

Fly from Las Vegas Harry Reid Intl to Toronto Pearson Intl for the best Las Vegas Harry Reid Intl - Ontario flight prices

You are more likely to see cheaper flights to Region of Ontario from Las Vegas when booking weeks ahead of your departure date. In general, you can expect to find flights to Region of Ontario for around C$ 532 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Region of Ontario from Las Vegas for as low as C$ 430 on momondo.

There are 2 cabin classes available to choose from on Las Vegas to Region of Ontario flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

WestJet, United Airlines, and Delta are the most popular carriers operating from Las Vegas Harry Reid Intl to Ontario

Porter Airlines, WestJet and Air Canada are the top three most popular airlines that fly to Region of Ontario from Las Vegas according to our data. Porter Airlines is the first choice among our users, with 49% of people opting to fly with this airline when travelling to Region of Ontario. Keep in mind that there are 3 different airlines that fly to Region of Ontario on a routine basis, so you have a few additional options to choose from.

The number of flights available between Las Vegas and Region of Ontario is 5 per day as of September 2026. The most frequent departure time is 11:00p.m., with 37% of daily flights leaving in the evening.

As of September 2026, 36 flights take off from Las Vegas and land in Region of Ontario each week. The most common flight departure day for this route is Thu, with 17% of weekly flights taking off on this day.