Cheap flights from New York John F Kennedy Intl Airport to San Juan from £121

The cheapest month to fly to San Juan from New York John F Kennedy Intl Airport is in January. Flight prices, which tend to average around £204, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of January, then book flights to San Juan from New York John F Kennedy Intl Airport during February instead. Flights to San Juan in February, while not as cheap as those in January, still average around £254.

The cheapest day to depart on your flight to San Juan is on a Wednesday when prices can be found for as low as £262. 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 Sunday, with ticket prices averaging around £434.

At midday is the cheapest time of day to fly from New York John F Kennedy Intl Airport to San Juan when you can find flight prices for as low as £219. Flying to San Juan at midday is an ideal time because this is during off-peak travel hours. Flights in the evening are often more expensive, with an average ticket price of £399.

Fly from New York John F Kennedy Intl to San Juan Luis Munoz Marin Intl for the best New York John F Kennedy Intl - San Juan flight prices

You are more likely to see cheaper flights to San Juan from New York John F Kennedy Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to San Juan for around £275 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 New York John F Kennedy Intl Airport for as low as £236 on momondo.

There are 2 cabin classes available to choose from on New York John F Kennedy Intl Airport 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 25% of flights between New York and San Juan have experienced a delay on any given week. The average delay length over the past 12 months has been 167 minutes.

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

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

According to our data, Delta have had the fewest delays on this route over the last 12 months, with about 19% of their flights experiencing any sort of delay.

As of November 2026, 18 flights take off from New York John F Kennedy Intl Airport and land in San Juan each day. The most common flight departure time for this route is 19:00, with 40% of daily flights taking off in the afternoon.

As of November 2026, 131 flights take off from New York John F Kennedy Intl Airport and land in San Juan each week. The most common flight departure day for this route is Sun, with 18% of weekly flights taking off on this day.