Cheap flights from Dallas to San Juan from $119

If you’re not able to fly to San Juan in November, then October is your next best option. Flight prices from Dallas to San Juan during October average around $106.

The cheapest day to depart from Dallas to San Juan is on a Monday when prices can be found for as low as $348. The most expensive day to fly to San Juan is Friday, with ticket prices averaging around $419.

The cheapest time of day to fly to San Juan is at noon when flights can be purchased for as low as $304. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $459 on average. Flights to San Juan from Dallas in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

Fly from Dallas/Fort Worth to San Juan Luis Munoz Marin Intl for the best Dallas - San Juan flight prices

You are more likely to see cheaper flights to San Juan from Dallas when booking weeks ahead of your departure date. In general, you can expect to find flights to San Juan for around $371 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Juan from Dallas for as low as $309 on momondo.

Frontier, Southwest, and Delta are the most popular carriers operating from Dallas to San Juan

Spirit Airlines, American Airlines and Frontier are the top three most popular airlines that fly to San Juan from Dallas according to our data. Spirit Airlines is the first choice among our users, with 53% 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 26% of flights between Dallas and San Juan have experienced a delay on any given week. The average delay length over the past 12 months has been 146 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.

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

According to our data, Spirit Airlines 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 Dallas and San Juan is 7 per day as of May 2026. The most frequent departure time is 5:00PM, with 41% of daily flights leaving in the afternoon.

As of May 2026, there are 52 flights per week flying from Dallas to San Juan. The most common day of the week flights depart is Mon, with 15% of flights taking off on this day.