Cheap flights from Miami to San Juan from £51

The cheapest month to fly to San Juan from Miami is in April. Flight prices, which tend to average around £166, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of April, then book flights to San Juan from Miami during January instead. Flights to San Juan in January, while not as cheap as those in April, still average around £175.

The cheapest day to depart on your flight to San Juan is on a Sunday when prices can be found for as low as £253. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to San Juan is Monday, with ticket prices averaging around £324.

At midday is the cheapest time of day to fly from Miami to San Juan when you can find flight prices for as low as £236. Flying to San Juan at midday is an ideal time because this is during off-peak travel hours. Flights in the morning are often more expensive, with an average ticket price of £297.

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 £201 when searching weeks before you fly. 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 £160 on momondo.

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

Historically, on average around 22% 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 departing at night have, in the past, seen delays more frequently in comparison.

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

According to our data, American Airlines have had the fewest delays on this route over the last 12 months, with about 18% of their flights experiencing any sort of delay.

As of September 2026, there are 17 flights per day flying from Miami to San Juan. The most common time of day flights depart is 19:00, with 49% of flights taking off at midday.

As of September 2026, there are 122 flights per week flying from Miami to San Juan. The most common day of the week flights depart is Mon, with 18% of flights taking off on this day.