Cheap flights from Newark Airport to San Juan from $87

If you’re not able to fly to San Juan in October, then September is your next best option. Flight prices from Newark Airport to San Juan during September average around $256.

The cheapest day to depart from Newark Airport to San Juan is on a Monday when prices can be found for as low as $295. The most expensive day to fly to San Juan is Thursday, with ticket prices averaging around $337.

The cheapest time of day to fly to San Juan is at noon when flights can be purchased for as low as $289. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $341 on average. Flights to San Juan from Newark Airport in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

You are more likely to see cheaper flights to San Juan from Newark Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to San Juan for around $307 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Juan from Newark Airport for as low as $255 on momondo.

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

United Airlines and Delta are the most popular carriers operating from Newark to San Juan

United Airlines, JetBlue and Frontier are the top three most popular airlines that fly to San Juan from Newark Airport according to our data. United Airlines is the first choice among our users, with 33% 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 27% of flights between Newark and San Juan have experienced a delay on any given week. The average delay length over the past 12 months has been 158 minutes.

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

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

According to our data, JetBlue have had the least number of delays on this route over the last 12 months; with about 24% of their flights experiencing any sort of delay.

4 flights are operational daily from Newark Airport to San Juan as of March 2026. The most popular departure time for this route is 7:00PM, with 62% of flights per day taking off at noon.

As of March 2026, 30 flights take off from Newark Airport and land in San Juan each week. The most common flight departure day for this route is Sat, with 37% of weekly flights taking off on this day.