Cheap flights from Salt Lake City to Los Angeles from $66

In general, April is the cheapest month to fly from Salt Lake City to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $244. If you aren’t able to travel during the month of April, then book flights to Ontario from Salt Lake City during January instead. Flights to Ontario in January, while not as cheap as those in April, still average around $246.

The cheapest day to depart on your flight to Ontario is on a Saturday when prices can be found for as low as $299. This is often the case because there is less demand to fly during this day of the week. When flying out on a Wednesday, the most expensive travel day of the week, you can expect to see flight prices from Salt Lake City to Ontario for around $419.

Fly from Salt Lake City to Ontario for the best Salt Lake City - Ontario flight prices

You are more likely to see cheaper flights to Ontario from Salt Lake City when booking weeks ahead of your departure date. In general, you can expect to find flights to Ontario for around $301 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ontario from Salt Lake City for as low as $239 on momondo.

There are 4 cabin classes available to choose from on Salt Lake City to Ontario 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 39% on your flight if you consider stops on a Salt Lake City to Ontario flight.

Southwest and Delta are the most popular carriers operating from Salt Lake City to Ontario

Frontier, Delta and Allegiant Air are the top three most popular airlines that fly to Ontario from Salt Lake City according to our data. Frontier is the first choice among our users, with 49% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 8 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.

As of July 2026, 7 flights take off from Salt Lake City and land in Ontario each day. The most common flight departure time for this route is 3:00PM, with 44% of daily flights taking off in the afternoon.

As of July 2026, 52 flights take off from Salt Lake City and land in Ontario each week. The most common flight departure day for this route is Fri, with 17% of weekly flights taking off on this day.