Cheap flights from Costa Rica to Los Angeles from $256

In general, May is the cheapest month to fly from Costa Rica to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $383. If you aren’t able to travel during the month of May, then book flights to Ontario from Costa Rica during February instead. Flights to Ontario in February, while not as cheap as those in May, still average around $416.

You are more likely to see cheaper flights to Ontario from Costa Rica when booking weeks ahead of your departure date. In general, you can expect to find flights to Ontario for around $578 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ontario from Costa Rica for as low as $405 on momondo.

United Airlines is the most popular carrier operating from Costa Rica to Ontario

Alaska Airlines, Avianca and United Airlines are the top three most popular airlines that fly to Ontario from Costa Rica according to our data. Alaska Airlines is the first choice among our users, with 47% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 9 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.