Cheap flights from Hawaii to Los Angeles from $136

In general, February is the cheapest month to fly from Hawaii to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $370. If you aren’t able to travel during the month of February, then book flights to Ontario from Hawaii during March instead. Flights to Ontario in March, while not as cheap as those in February, still average around $388.

The cheapest day to depart on your flight to Ontario is on a Tuesday when prices can be found for as low as $406. This is often the case because there is less demand to fly during this day of the week. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Hawaii to Ontario for around $587.

At noon is the cheapest time of day to fly from Hawaii to Ontario when you can find flight prices for as low as $404. Flying to Ontario at noon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $531 on average. Flights to Ontario from Hawaii in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

Fly from Honolulu to Ontario for the best Hawaii - Ontario flight prices

You are more likely to see cheaper flights to Ontario from Hawaii when booking weeks ahead of your departure date. In general, you can expect to find flights to Ontario for around $477 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ontario from Hawaii for as low as $358 on momondo.

There are 4 cabin classes available to choose from on Hawaii to Ontario flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Southwest, Delta, and United Airlines are the most popular carriers operating from Hawaii to Ontario

United Airlines, Alaska Airlines and Delta are the top three most popular airlines that fly to Ontario from Hawaii according to our data. United Airlines is the first choice among our users, with 39% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 7 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.

As of April 2026, 1 flights take off from Hawaii and land in Ontario each day. The most common flight departure time for this route is 2:00PM, with 100% of daily flights taking off in the afternoon.

As of April 2026, 12 flights take off from Hawaii and land in Ontario each week. The most common flight departure day for this route is Mon, with 17% of weekly flights taking off on this day.