Cheap flights from Newark Airport to San Juan from $121

If you aren’t able to travel to San Juan Luis Munoz Marin Intl Airport during the month of October, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $266.

On average, the least expensive day to fly to San Juan Luis Munoz Marin Intl Airport from Newark Airport is on a Monday. momondo users have found tickets for Monday departures for as low as $317. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Thursday is the most expensive day to depart from Newark Airport because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $368.

The cheapest time of day to fly to San Juan Luis Munoz Marin Intl Airport is at noon when flights can be purchased for as low as $300. Flights in the afternoon are often more expensive with an average ticket price of $357.

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

You are more likely to see cheaper flights to San Juan Luis Munoz Marin Intl Airport from Newark Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to San Juan Luis Munoz Marin Intl Airport for around $333 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Juan Luis Munoz Marin Intl Airport from Newark Airport for as low as $290 on momondo.

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

United Airlines, Delta, and JetBlue are the most popular carriers operating from Newark to San Juan Luis Munoz Marin Intl

United Airlines, JetBlue and Frontier are the top three most popular airlines that fly to San Juan Luis Munoz Marin Intl Airport from Newark Airport according to our data. United Airlines is the first choice among our users, with 41% of people opting to fly with this airline when traveling to San Juan Luis Munoz Marin Intl Airport. Keep in mind that there are 5 different airlines that fly to San Juan Luis Munoz Marin Intl Airport on a routine basis, so you have a few additional options to choose from.

Historically, on average around 25% 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 157 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. Monday 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 22% of their flights experiencing any sort of delay.

The number of flights available between Newark Airport and San Juan Luis Munoz Marin Intl Airport is 8 per day as of June 2026. The most frequent departure time is 8:00AM, with 53% of daily flights leaving at noon.

61 flights are operational weekly from Newark Airport to San Juan Luis Munoz Marin Intl Airport as of June 2026. The most popular departure day for this route is Mon, with 18% of flights per week taking off on this day.