Cheap Flights from Durham (RDU) to San Juan (SJU)

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      Travellers and cabin class, 1 Adult, Economy
      jetBlue
      Frontier Airlines
      Delta

      Compare Raleigh / Durham to San Juan Luis Munoz Marin flight deals

      Find the cheapest month or even day of the year to fly to San Juan Luis Munoz Marin

      Book the best San Juan Luis Munoz Marin fare with no extra fees

      Flight deals from Raleigh / Durham to San Juan Luis Munoz Marin

      Looking for a cheap last-minute deal or the best return flight from Raleigh / Durham Airport to San Juan Luis Munoz Marin Airport? If you want to travel next month, return fares start from $268. Find the lowest prices on one-way and return tickets right here.
      How did we find these deals? The deals you see here are the lowest prices for flight tickets from Raleigh / Durham to San Juan Luis Munoz Marin found in the last 4 days, and are subject to change and availability.

      Find the cheapest month to fly from Raleigh / Durham to San Juan Luis Munoz Marin

      We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Raleigh / Durham to San Juan Luis Munoz Marin flights are currently cheapest in October.

      Direct flights from Raleigh / Durham to San Juan Luis Munoz Marin

      Delta
      Frontier Airlines
      jetBlue

      Durham to San Juan: Flight information

      The things to know before you go.
      Cheapest flight found$268
      Cheapest month to flyOctober
      Average flight time3 hrs, 26 mins
      Most popular airlinejetBlue
      Average flights per week11

      Finding cheap flights from Raleigh / Durham to San Juan Luis Munoz Marin: Frequently asked questions

      The best price we found for a return flight from Raleigh / Durham to San Juan Luis Munoz Marin is $268. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
      3 hours and 26 minutes is the average flight time from Raleigh / Durham to San Juan Luis Munoz Marin.
      jetBlue, Frontier Airlines and Delta fly direct from Raleigh / Durham to San Juan Luis Munoz Marin.
      As of September 2026, there are 11 flights per week flying from Raleigh / Durham to San Juan Luis Munoz Marin.
      The cheapest month to fly from Raleigh / Durham to San Juan Luis Munoz Marin is usually October.
      After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Raleigh / Durham Airport to San Juan Luis Munoz Marin Airport on Thursday, 29 October 2026.
      Yes – the average flight time is 3 hours and 26 minutes.
      We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Juan Luis Munoz Marin but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

      We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to San Juan is around 40 days in advance, so don’t leave your flight to the last minute.

      Currently, Frontier Airlines offers the cheapest flight tickets to San Juan Luis Munoz Marin.

      Travelling from Raleigh / Durham Airport (RDU) to San Juan Luis Munoz Marin Airport (SJU): what you need to know

      • The average time for a direct flight from Raleigh / Durham Airport to San Juan Luis Munoz Marin Airport is 3 hours 30 minutes.

      • San Juan is one hour ahead of Durham and observes the UTC-4 timezone.

      • Every week, there are nine Raleigh / Durham Airport to San Juan Luis Munoz Marin Airport flights.

      • Your RDU to SJU flight won't wait if you're running late, so don't forget to check in on time. Arrive up to one hour in advance for domestic flights and two hours ahead when you're travelling internationally.

      • Be prepared for longer lines in popular months like July. Arriving up to four hours ahead of international flights and two hours for a domestic departure will give you ample time for security and boarding.

      • You can travel nonstop to San Juan, Puerto Rico. Prepare for takeoff with one of these airlines offering direct flights from Raleigh / Durham Airport to San Juan Luis Munoz Marin Airport:

      • JetBlue is the top choice for travellers on this route.

      • With 72.73% of its services landing on schedule, jetBlue is the most punctual carrier operating RDU to SJU flights.

      • We make it easy to book a flight with a stopover. To see your options for tickets from Raleigh / Durham Airport to San Juan Luis Munoz Marin Airport, uncheck 'Direct flights only.' Then, choose a flight that has a stop long enough to explore the city of your choice. Worthwhile stopovers between RDU and SJU include:

        • Atlanta Hartsfield-Jackson Airport

        • Charlotte Douglas Airport

        • Orlando International Airport

      How to find the cheapest flights from Raleigh / Durham Airport (RDU) to San Juan Luis Munoz Marin Airport (SJU)

      • The cheapest price we've seen for a one-way Raleigh / Durham Airport to San Juan Luis Munoz Marin Airport flight is $118. A return plane ticket is currently $268. Depending on the availability and when you book, these fares may change.

      • Don't leave everything to the last minute. You're more likely to get cheap tickets from RDU to SJU if you book ahead. Airlines often have some great early bird rates.

      • Plan your trip for May. That's the cheapest month for flights from Raleigh / Durham Airport to San Juan Luis Munoz Marin Airport. If your travel dates are flexible, use the 'Whole month' tool to see the cheapest price across every month.

      • Cut down on the time spent looking for cheap flights from RDU to SJU by setting up a Price Alert. You'll receive an email or notification on the app when a lower fare becomes available.

      • Discover the right flight for you with the help of the filters. To see the 'Fastest,' 'Best' or 'Cheapest' flights from Raleigh / Durham Airport to San Juan Luis Munoz Marin Airport, use the 'Sort by' function. You can also filter results by airline, arrival and departure times, and journey duration.

      Handy information about Raleigh / Durham Airport (RDU)

      Arriving at San Juan Luis Munoz Marin Airport (SJU)

      • If you're coming in on a late Raleigh / Durham Airport to San Juan Luis Munoz Marin Airport flight, nothing tops the convenience of being near the terminal. Pick up your bags from the carousel and then be showered and resting soon after at one of these accommodation options near SJU:

      • Go where the road takes you with a San Juan Luis Munoz Marin Airport rental car. Book your wheels from Sixt, Ace Rent a Car or U-Save and experience more of San Juan and beyond.

      • Lock in the lowest price by booking your vehicle from San Juan Luis Munoz Marin Airport around two weeks ahead of your departure.

      When to fly to San Juan Luis Munoz Marin Airport (SJU)

      • July is the busiest month for flights from Raleigh / Durham Airport to San Juan Luis Munoz Marin Airport. To avoid the crowds, go to San Juan in March.

      • When reserving your flight from Raleigh / Durham Airport to San Juan Luis Munoz Marin Airport, think about the kind of weather you enjoy. August is the warmest month in San Juan, with temperatures ranging from 24ºC (75ºF) to 32ºC (90ºF).

      • For cooler conditions, search for a cheap ticket from RDU to SJU in February. Average temperatures are between 21ºC (70ºF) and 28ºC (82ºF) then.

      Explore more of Puerto Rico

      • You've visited San Juan, now it's time to discover more of Puerto Rico. Journey about 10 kilometres west to Bayamon to tick off its leading attractions. From Ron del Barrilito - Hacienda Santa Ana to Parque de las Ciencias and Parque Recreativo Río Bayamón, there's plenty to keep you busy.

      • Carolina is another well-known destination in Puerto Rico and is around 11 kilometres east of San Juan. No journey is complete without dropping by Isla Verde Beach, Carolina Beach and Balneario Isla Verde.

      Prices shown on this page are estimated lowest prices only. Found in the last 12 days.