Cheap flights from Denver to Costa Rica from $146

The cheapest month to fly to Costa Rica from Denver is in September. Flight prices, which tend to average around $346, are often lower during this time because this is during the off-season. If you’re not able to fly to Costa Rica in September, then August is your next best option. Flight prices from Denver to Costa Rica during August average around $365.

According to our data, Wednesday is the cheapest day to fly to Costa Rica from Denver. The lowest ticket price found for a Wednesday departure recently was $484. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. If your travel schedule is flexible, try to avoid departing on a Thursday because tickets tend to average around $923. These prices are subject to change though, so be sure to set up a Price Alert for flights to Costa Rica.

At noon is the cheapest time of day to fly from Denver to Costa Rica when you can find flight prices for as low as $512. Flying to Costa Rica at noon is an ideal time because this is during off-peak travel hours. Flights to Costa Rica are more costly in the morning, with an average ticket price of $695. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from Denver Intl to San José Juan Santamaria Intl for the best Denver Intl - Costa Rica flight prices

You are more likely to see cheaper flights to Costa Rica from Denver when booking weeks ahead of your departure date. In general, you can expect to find flights to Costa Rica for around $440 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Costa Rica from Denver for as low as $388 on momondo.

There are 3 cabin classes available to choose from on Denver Intl to Costa Rica flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

United Airlines, Delta, and JetBlue are the most popular carriers operating from Denver Intl to Costa Rica

United Airlines, American Airlines and Southwest are the top three most popular airlines that fly to Costa Rica from Denver according to our data. United Airlines is the first choice among our users, with 55% of people opting to fly with this airline when traveling to Costa Rica. Keep in mind that there are 6 different airlines that fly to Costa Rica on a routine basis, so you have a few additional options to choose from.

Historically, on average around 13% of flights between Denver and Costa Rica have experienced a delay on any given week. The average delay length over the past 12 months has been 103 minutes.

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

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

According to our data, Southwest have had the least number of delays on this route over the last 12 months; with about 13% of their flights experiencing any sort of delay.

1 flights are operational daily from Denver to Costa Rica as of April 2026. The most popular departure time for this route is 10:00AM, with 72% of flights per day taking off at noon.

The number of flights available between Denver and Costa Rica is 11 per week as of April 2026. The most frequent departure day is Sat, with 36% of weekly flights leaving on this day.