Cheap flights from Miami to San Juan from $74

If you’re not able to fly to San Juan in May, then January is your next best option. Flight prices from Miami to San Juan during January average around $254.

The cheapest day to depart from Miami to San Juan is on a Monday when prices can be found for as low as $252. The most expensive day to fly to San Juan is Sunday, with ticket prices averaging around $295.

The cheapest time of day to fly to San Juan is in the evening when flights can be purchased for as low as $239. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $301 on average. Flights to San Juan from Miami in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

Fly from Miami to San Juan Luis Munoz Marin Intl for the best Miami - San Juan flight prices

You are more likely to see cheaper flights to San Juan from Miami when booking weeks ahead of your departure date. In general, you can expect to find flights to San Juan for around $264 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Juan from Miami for as low as $226 on momondo.

Southwest is the most popular carrier operating from Miami to San Juan

JetBlue, Frontier and American Airlines are the top three most popular airlines that fly to San Juan from Miami according to our data. JetBlue is the first choice among our users, with 32% of people opting to fly with this airline when traveling to San Juan. Keep in mind that there are 6 different airlines that fly to San Juan on a routine basis, so you have a few additional options to choose from.

Historically, on average around 24% of flights between Miami and San Juan have experienced a delay on any given week. The average delay length over the past 12 months has been 140 minutes.

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

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

According to our data, Frontier have had the least number of delays on this route over the last 12 months; with about 20% of their flights experiencing any sort of delay.

16 flights are operational daily from Miami to San Juan as of May 2026. The most popular departure time for this route is 8:00AM, with 55% of flights per day taking off at noon.

The number of flights available between Miami and San Juan is 118 per week as of May 2026. The most frequent departure day is Sat, with 16% of weekly flights leaving on this day.