$99+ Cheap flights from Raleigh (RDU) to San Juan
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/5. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Raleigh to San Juan with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Raleigh-Durham to San Juan are usually found in February or October, booked 77 days in advance, depart on a Monday or Wednesday and return on a Monday
Cheap flight deals from Raleigh to San Juan
Cheapest flights from Raleigh to San JuanExplore the most affordable flight options available from Raleigh to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 4, 2025.
Explore the most affordable flight options available from Raleigh to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 4, 2025.
This Frontier deal was found by Cheapflights users on 12/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Frontier deal was found by Cheapflights users on 12/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Booking.com deal was found by Cheapflights users on 12/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Trip.com deal was found by Cheapflights users on 12/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Kiwi.com deal was found by Cheapflights users on 12/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Kiwi.com deal was found by Cheapflights users on 12/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Find flight deals from Raleigh to San Juan
Discover tips and strategies to find the most affordable flight options for your journey from Raleigh (RDU) to San Juan (PR1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 4, 2025.
Round-trip from | $173 (Super.com) |
|---|---|
One-way from | $99 (Frontier) |
Popular in | December |
Cheapest in | February |
Average price | $391 |
Cheapflights Fare Finder
Use the filters below to find and compare flights from Raleigh to San Juan that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
RaleighSan Juan
RDU - SJU
RDUSJU
Raleigh-Durham
Sat 1/24
3:50 pm-11:00 pm
1 stop6h 10m
San Juan Luis Munoz Marin Intl
Wed 2/4
12:10 pm-10:00 pm
2 stops10h 50m
RaleighSan Juan
RDU - SJU
RDUSJU
Raleigh-Durham
Tue 1/20
12:03 pm-4:30 pm
Nonstop3h 27m
San Juan Luis Munoz Marin Intl
Fri 2/13
7:56 am-10:40 am
Nonstop3h 44m
RaleighSan Juan
RDU - SJU
RDUSJU
Raleigh-Durham
Wed 1/21
12:03 pm-4:30 pm
Nonstop3h 27m
San Juan Luis Munoz Marin Intl
Thu 1/29
6:05 am-1:50 pm
1 stop8h 45m
RaleighSan Juan
RDU - SJU
RDUSJU
Raleigh-Durham
Thu 2/5
6:05 pm-12:40 am
1 stop5h 35m
San Juan Luis Munoz Marin Intl
Sun 2/8
5:40 am-10:35 am
1 stop5h 55m
RaleighSan Juan
RDU - SJU
RDUSJU
Raleigh-Durham
Wed 1/21
11:20 am-8:55 pm
2 stops8h 35m
San Juan Luis Munoz Marin Intl
Tue 1/27
6:00 am-4:15 pm
2 stops11h 15m
RaleighSan Juan
RDU - SJU
RDUSJU
Raleigh-Durham
Sat 2/21
12:28 pm-11:58 pm
1 stop10h 30m
San Juan Luis Munoz Marin Intl
Sat 2/28
4:12 pm-6:55 pm
Nonstop3h 43m
RaleighSan Juan
RDU - SJU
RDUSJU
Raleigh-Durham
Sat 2/14
10:40 am-2:58 pm
Nonstop3h 18m
San Juan Luis Munoz Marin Intl
Thu 2/19
6:15 am-11:23 am
1 stop6h 08m
RaleighSan Juan
RDU - SJU
RDUSJU
Raleigh-Durham
Tue 1/13
12:03 pm-4:30 pm
Nonstop3h 27m
San Juan Luis Munoz Marin Intl
Thu 1/15
8:03 am-10:47 am
Nonstop3h 44m
RaleighSan Juan
RDU - SJU
RDUSJU
Raleigh-Durham
Mon 1/12
11:38 am-4:05 pm
Nonstop3h 27m
San Juan Luis Munoz Marin Intl
Wed 1/21
8:20 am-11:04 am
Nonstop3h 44m
RaleighSan Juan
RDU - SJU
RDUSJU
Raleigh-Durham
Sat 1/24
10:00 am-6:30 pm
2 stops7h 30m
San Juan Luis Munoz Marin Intl
Tue 2/3
5:40 am-4:15 pm
2 stops11h 35m
Best time to book a flight from Raleigh to San Juan
Have a flexible travel schedule? Discover the best time to fly to San Juan from Raleigh with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Raleigh to San Juan
How far ahead should I book a flight from Raleigh to San Juan?
Use this chart to determine the optimal time to book a round-trip flight from Raleigh to San Juan. Price data was last updated on November 28, 2025.
The price you pay for your flight from Raleigh to San Juan may vary depending on when you book. For the best chance of a lower fare, look to book 77 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from Raleigh to San Juan?
Currently, February is the cheapest month in which you can book a flight from Raleigh to San Juan (average of $99). Flying from Raleigh to San Juan in October is currently the most expensive (average of $214). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from RDU to SJU?
Find hourly flight availability from Raleigh to San Juan. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 4, 2025.
It’s optimal to fly from Raleigh to San Juan in the evening. By choosing this option you can save up to 45% on the cost of your flight, compared to a flight in the morning.
What is the cheapest day to fly from Raleigh to San Juan?
Use this chart to determine the cheapest time to fly round-trip from Raleigh to San Juan. Price data was last updated on December 16, 2024.
Travelers seeking maximum savings on their Raleigh to San Juan flight should consider departing on Friday evenings when fares are most often at their lowest. Thursday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from Raleigh to San Juan
Explore weekly flight availability from Raleigh to San Juan. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated December 4, 2025.
The most flights from RDU to PR1 are scheduled on a Thursday (2 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (1 on average).
How often are flights from Raleigh to San Juan delayed?
About 21% of weekly flights between Raleigh and San Juan have experienced delays in the past year, with the average delay time being 143 minutes.
What is the most punctual flight time for Raleigh to San Juan flights?
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving at night tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Wednesday tends to have the lowest number of delays on this route, whereas Monday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Raleigh to San Juan flights?
Over the last year, JetBlue have had the lowest number of delays on this route, with just 18% of flights being delayed.
Reviews of airlines servicing San Juan
Get insights into the airlines that provide service to San Juan. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Juan. Reviews last updated December 4, 2025.
See what other customers who have flown with Southwest, Delta, and American Airlines from Raleigh to San Juan have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
Entertainment
Food
Comfort
Crew
Overall
Reviews
Thomas,Dec 2025
SEA - DEN
Boarding
Entertainment
Food
Comfort
Crew
Overall
Reviews
Thomas,Dec 2025
SEA - DEN
Boarding
Entertainment
Food
Comfort
Crew
Overall
Reviews
Thomas,Dec 2025
SEA - DEN
Boarding
Entertainment
Food
Comfort
Crew
Overall
Reviews
Thomas,Dec 2025
SEA - DEN
Boarding
Entertainment
Food
Comfort
Crew
Overall
Reviews
Thomas,Dec 2025
SEA - DEN
Boarding
Entertainment
Food
Comfort
Crew
Overall
Reviews
Thomas,Dec 2025
SEA - DEN
Related info for your journey
Find useful and relevant information for your journey from Raleigh to San Juan. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes for Raleigh to San Juan
See prices for flight routes from nearby airports that may be better suited for you.
Top 7 airlines flying from Raleigh to San Juan
Discover the top 7 airlines that operate flights from Raleigh to San Juan. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 4, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$78 | Average$236 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$110 | Average$262 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$156 | Average$332 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$216 | Average$578 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$247 | Average$349 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$272 | Average$417 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$281 | Average$433 | FlexibilityNo cancel fee | On-time63% |