$94 Cheap Flights from Raleigh (RDU) to San Juan (SJU)

View $94 flight on Sun, Jul 20, 2025Opens in a new window

Popular airlines from Raleigh-Durham International Airport (RDU) to Luis Munoz Marin Intl. Airport (SJU)

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Cheap Flights from Raleigh to San Juan (RDU-SJU)

Prices were available within the past 7 days and start at $94 for one-way flights and $189 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Mon, Jul 21 - Thu, Jul 31
RDU
Raleigh
SJU
San Juan
$189 Roundtrip, found 15 hours ago
$189
Roundtrip
found 15 hours ago
Select Spirit Airlines flight, departing Mon, Jul 21 from Raleigh to San Juan, returning Thu, Jul 31, priced at $189 found 15 hours ago
Spirit Airlines
Mon, Jul 21 - Thu, Aug 7
RDU
Raleigh
SJU
San Juan
$200 Roundtrip, found 1 day ago
$200
Roundtrip
found 1 day ago
Select Spirit Airlines flight, departing Mon, Jul 21 from Raleigh to San Juan, returning Thu, Aug 7, priced at $200 found 1 day ago
Spirit Airlines
Mon, Aug 4 - Thu, Aug 7
RDU
Raleigh
SJU
San Juan
$203 Roundtrip, just found
$203
Roundtrip
just found
Select Spirit Airlines flight, departing Mon, Aug 4 from Raleigh to San Juan, returning Thu, Aug 7, priced at $203 just found
Spirit Airlines
Mon, Jul 21 - Wed, Jul 30
RDU
Raleigh
SJU
San Juan
$210 Roundtrip, found 17 hours ago
$210
Roundtrip
found 17 hours ago
Select Spirit Airlines flight, departing Mon, Jul 21 from Raleigh to San Juan, returning Wed, Jul 30, priced at $210 found 17 hours ago
Frontier Airlines
Mon, Aug 4 - Thu, Aug 7
RDU
Raleigh
SJU
San Juan
$212 Roundtrip, just found
$212
Roundtrip
just found
Select Frontier Airlines flight, departing Mon, Aug 4 from Raleigh to San Juan, returning Thu, Aug 7, priced at $212 just found
Spirit Airlines
Sun, Jul 20 - Sat, Jul 26
RDU
Raleigh
SJU
San Juan
$213 Roundtrip, found 1 hour ago
$213
Roundtrip
found 1 hour ago
Select Spirit Airlines flight, departing Sun, Jul 20 from Raleigh to San Juan, returning Sat, Jul 26, priced at $213 found 1 hour ago
Spirit Airlines
Sat, Jul 26 - Thu, Jul 31
RDU
Raleigh
SJU
San Juan
$215 Roundtrip, found 3 hours ago
$215
Roundtrip
found 3 hours ago
Select Spirit Airlines flight, departing Sat, Jul 26 from Raleigh to San Juan, returning Thu, Jul 31, priced at $215 found 3 hours ago
Southwest Airlines
Sat, Jul 26 - Thu, Jul 31
RDU
Raleigh
SJU
San Juan
$236 Roundtrip, found 3 hours ago
$236
Roundtrip
found 3 hours ago
Select Southwest Airlines flight, departing Sat, Jul 26 from Raleigh to San Juan, returning Thu, Jul 31, priced at $236 found 3 hours ago
JetBlue Airways
Mon, Jul 21 - Thu, Jul 31
RDU
Raleigh
SJU
San Juan
$240 Roundtrip, found 15 hours ago
$240
Roundtrip
found 15 hours ago
Select JetBlue Airways flight, departing Mon, Jul 21 from Raleigh to San Juan, returning Thu, Jul 31, priced at $240 found 15 hours ago
United
Thu, Oct 2 - Fri, Oct 3
RDU
Raleigh
SJU
San Juan
$302 Roundtrip, found 12 hours ago
$302
Roundtrip
found 12 hours ago
Select United flight, departing Thu, Oct 2 from Raleigh to San Juan, returning Fri, Oct 3, priced at $302 found 12 hours ago

Find the cheapest month to fly from Raleigh (RDU) to San Juan (SJU)

September is typically the cheapest month to fly

From $112 - $286 per traveler.

Graph displaying average flight prices per month

Flights from Raleigh (RDU) to San Juan (SJU)
Origin airport
Raleigh - Durham Intl.
Destination airport
Luis Munoz Marin Intl.
Airlines serving
American Airlines, Delta, Frontier Airlines, JetBlue Airways, Southwest Airlines, Spirit Airlines, United
Roundtrip price
$189
Distance
1435 mi
Average flight time
3 hours 33 mins

Raleigh to San Juan Flights

The cheapest times to fly from Raleigh to San Juan

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Raleigh to San Juan are during the month of July. You can find some of the cheapest flights from Raleigh to San Juan with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Raleigh to San Juan

Sunday is one of the best days to book for cheap flights from Raleigh to San Juan: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Raleigh to San Juan

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Raleigh to San Juan in 2025. You can also book with separate airlines for your outbound and return journeys, from $94 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Raleigh to San Juan flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Raleigh to San Juan airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Raleigh - Durham Intl. Airport (RDU) to Luis Munoz Marin Intl. Airport (SJU) cost?
Grab cheap return flights starting at $268 from Raleigh - Durham Intl. Airport (RDU) to Luis Munoz Marin Intl. Airport (SJU). This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Frontier Airlines flight leaving RDU on July 12 2025 and touching down at SJU. The price was last updated on June 30 2025 and has not changed since.
What is the cheapest month to fly from RDU to SJU?
To lock in a cheap fare, look for nonstop flights from RDU to SJU taking off in August. You can find a one-way Frontier Airlines flight for $114 leaving on August 18 2025. This price is based on the cheapest direct flight found on Expedia for this route in the next 330 days. The price was last updated on June 30 2025 and remains unchanged.
Which airlines fly direct from Raleigh - Durham Intl. Airport (RDU) to Luis Munoz Marin Intl. Airport (SJU)?
When flying out of Raleigh - Durham Intl. Airport (RDU), you can get on a nonstop flight to Luis Munoz Marin Intl. Airport (SJU) with JetBlue Airways.
What is the cheapest airline that flies from RDU to SJU?
With fares starting at $114 for a one-way flight from RDU to SJU, Frontier Airlines is currently the cheapest carrier on this route. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from RDU on August 18 2025. Prices were last updated on June 30 2025 and have not changed since.
How many flights per day from Raleigh - Durham Intl. Airport (RDU) to Luis Munoz Marin Intl. Airport (SJU)?
On average, there's only 1 direct flight taking off from Raleigh - Durham Intl. Airport (RDU) to Luis Munoz Marin Intl. Airport (SJU) each day. If this doesn't work with your itinerary, think about flights with layovers. Just customize your search results on Expedia to include one stop or more to discover the next best option.
What are the most popular departure times for flights from Raleigh - Durham Intl. Airport (RDU) to Luis Munoz Marin Intl. Airport (SJU)?
Flights between RDU and SJU are busiest at 11 AM. If you want a quieter trip and potentially cheaper tickets, look for a time outside the usual busy windows.
What day of the week has the most flights from RDU to SJU?
Jet off on a Wednesday if you're after the best selection of flights from Raleigh - Durham Intl. Airport (RDU) to Luis Munoz Marin Intl. Airport (SJU).
What is the earliest flight from Raleigh - Durham Intl. Airport (RDU) to Luis Munoz Marin Intl. Airport (SJU)?
Catch the earliest flight at around 11:38AM UTC-5, leaving from Raleigh - Durham Intl. Airport (RDU). You'll be in the air for around 3h 27m, touching down at Luis Munoz Marin Intl. Airport (SJU) at approximately 4:05PM UTC-4.
How long does it take to fly from Raleigh - Durham Intl. Airport (RDU) to Luis Munoz Marin Intl. Airport (SJU)?
The average flight time from RDU to SJU is 3 hours and 27 minutes, covering a total distance of 1,450 mi.
What is the best time to fly from Raleigh - Durham Intl. Airport (RDU) to Luis Munoz Marin Intl. Airport (SJU)?
To arrive at Luis Munoz Marin Intl. Airport (SJU) on time, opt for a flight that leaves from Raleigh - Durham Intl. Airport (RDU) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for San Juan from Raleigh - Durham Intl. Airport (RDU)?
If you've booked a direct flight from Raleigh - Durham Intl. Airport (RDU) to San Juan, Luis Munoz Marin Intl. Airport (SJU) is the only airport you can touch down at.
Is it cheaper to buy a plane ticket from Raleigh - Durham Intl. Airport (RDU) to Luis Munoz Marin Intl. Airport (SJU) last-minute?
Booking your ticket from RDU to SJU right before your getaway is typically more expensive. But if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Can I cancel or change the date of my flight from Raleigh - Durham Intl. Airport (RDU) to Luis Munoz Marin Intl. Airport (SJU)?
Typically, you're able to reschedule or cancel your RDU to SJU flight. However, additional fees may apply, especially if you made your booking more than 24 hours ago. Check your itinerary for the airline's fees and rules on flight changes, or if you need more information, go to our Customer Service portal.

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