Cheap flights from Denver to Puerto Rico from $101

If you don’t want to visit Puerto Rico in April, then you should wait until January to fly from Denver, when ticket prices are also cheap, with an average price of $484.

On average, the least expensive day to fly to Puerto Rico from Denver is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $635. However, this price may fluctuate depending on the airline, the season, and holidays. The most expensive day to fly to Puerto Rico is Saturday, with ticket prices averaging around $771.

Our most recent data shows that the best time of day to fly to Puerto Rico is in the morning. Flights from Denver to Puerto Rico during this time can be as low as $714. In contrast, the most expensive time of day to depart to Puerto Rico is in the evening when prices are around $1,312.

Fly from Denver Intl to San Juan Luis Munoz Marin Intl for the best Denver Intl - Puerto Rico flight prices

You are more likely to see cheaper flights to Puerto Rico from Denver when booking weeks ahead of your departure date. In general, you can expect to find flights to Puerto Rico for around $548 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Puerto Rico from Denver for as low as $466 on momondo.

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

Frontier and United Airlines are the most popular carriers operating from Denver Intl to Puerto Rico

Frontier, United Airlines and Southwest are the top three most popular airlines that fly to Puerto Rico from Denver according to our data. Frontier is the first choice among our users, with 39% of people opting to fly with this airline when traveling to Puerto Rico. Keep in mind that there are 6 different airlines that fly to Puerto Rico on a routine basis, so you have a few additional options to choose from.

As of October 2026, there are 1 flights per day flying from Denver to Puerto Rico. The most common time of day flights depart is 9:00AM, with 100% of flights taking off at noon.

As of October 2026, there are 7 flights per week flying from Denver to Puerto Rico. The most common day of the week flights depart is Mon, with 14% of flights taking off on this day.