San Juan

$102+ 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 4/7. Fares are subject to change and may not be available on all flights or dates of travel.
RDU — SJU
Apr 8 — Apr 151
We work with more than 300 partners to bring you better travel deals

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 62 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 Juan
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 March 9, 2026.

This Kiwi.com deal was found by Cheapflights users on 3/4. 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.
Fri 4/178:14 pm
RDU
-
SJU
Nonstop3h 29m
Frontier
Tue 4/2111:30 am
SJU
-
RDU
2 stops27h 34m
Frontier
Deal found 3/4$209
This Super.com deal was found by Cheapflights users on 3/4. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/138:56 pm
RDU
-
SJU
Nonstop3h 29m
Frontier
Fri 4/173:37 pm
SJU
-
RDU
Nonstop3h 52m
Frontier
Deal found 3/4$210
This CheapOair deal was found by Cheapflights users on 3/6. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/259:27 am
RDU
-
SJU
1 stop26h 56m
Frontier
Fri 5/13:08 am
SJU
-
RDU
1 stop7h 50m
Frontier
Deal found 3/6$211
This Frontier deal was found by Cheapflights users on 3/4. 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.
Sun 5/317:52 pm
RDU
-
SJU
Nonstop3h 36m
Frontier
Thu 6/119:15 am
SJU
-
RDU
1 stop12h 06m
Frontier
Deal found 3/4$212
This Frontier deal was found by Cheapflights users on 3/4. 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.
Fri 5/86:50 pm
RDU
-
SJU
1 stop7h 11m
Frontier
Thu 5/143:18 pm
SJU
-
RDU
1 stop8h 57m
Frontier
Deal found 3/4$213
This eDestinos deal was found by Cheapflights users on 3/8. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/227:46 pm
RDU
-
SJU
1 stop16h 03m
Spirit Airlines
Wed 3/2512:55 pm
SJU
-
RDU
1 stop5h 49m
Spirit Airlines
Deal found 3/8$214
This Kiwi.com deal was found by Cheapflights users on 3/4. 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.
Thu 5/78:18 am
RDU
-
SJU
1 stop9h 12m
Frontier
Fri 5/83:08 am
SJU
-
RDU
1 stop7h 50m
Frontier
Deal found 3/4$215
This Priceline deal was found by Cheapflights users on 3/6. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/177:48 pm
RDU
-
SJU
1 stop6h 13m
Frontier
Thu 5/282:50 pm
SJU
-
RDU
Nonstop3h 44m
Frontier
Deal found 3/6$216
This Kiwi.com deal was found by Cheapflights users on 3/8. 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.
Tue 3/313:08 pm
RDU
-
SJU
1 stop10h 55m
Multiple Airlines
Tue 4/712:05 pm
SJU
-
RDU
1 stop26h 57m
Multiple Airlines
Deal found 3/8$217
This Frontier deal was found by Cheapflights users on 3/5. 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.
Fri 3/209:07 pm
RDU
-
SJU
Nonstop3h 21m
Frontier
Sat 3/284:19 pm
SJU
-
RDU
Nonstop3h 53m
Frontier
Deal found 3/5$218
This Super.com deal was found by Cheapflights users on 3/7. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1610:00 pm
RDU
-
SJU
1 stop25h 29m
Frontier
Mon 4/203:08 am
SJU
-
RDU
1 stop9h 46m
Frontier
Deal found 3/7$219
This Kiwi.com deal was found by Cheapflights users on 3/4. 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.
Wed 6/310:48 pm
RDU
-
SJU
1 stop25h 59m
Frontier
Mon 6/89:48 am
SJU
-
RDU
1 stop10h 52m
Frontier
Deal found 3/4$220

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 March 9, 2026.

Round-trip from

$209
(Kiwi.com)

One-way from

$102
(CheapOair)

Popular in

December

Cheapest in

February

Average price

$338
From Raleigh-Durham to San Juan
One-way flight from Raleigh-Durham to San Juan
Highest demand for flights based on searches. 7% potential increase in price ($26 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Average for round-trip flights in March 2026

Cheapflights Fare Finder

 
Customize your flight search to find flights from Raleigh to San Juan that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 9, 2026.
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

Cheapest round-trip

RaleighSan Juan

RDU - SJU

RDUSJU

Raleigh-Durham

Tue 4/28

11:25 am-9:05 pm

2 stops9h 40m

San Juan Luis Munoz Marin Intl

Sun 5/3

5:00 am-3:10 pm

2 stops10h 10m

$375

RaleighSan Juan

RDU - SJU

RDUSJU

Raleigh-Durham

Mon 4/20

2:00 pm-11:25 pm

2 stops9h 25m

San Juan Luis Munoz Marin Intl

Fri 4/24

2:00 pm-11:10 pm

2 stops9h 10m

$376

RaleighSan Juan

RDU - SJU

RDUSJU

Raleigh-Durham

Mon 6/29

8:40 am-5:40 pm

2 stops9h 00m

San Juan Luis Munoz Marin Intl

Fri 7/3

5:30 am-5:30 pm

1 stop12h 00m

$376

RaleighSan Juan

RDU - SJU

RDUSJU

Raleigh-Durham

Tue 7/7

4:25 pm-12:15 am

2 stops7h 50m

San Juan Luis Munoz Marin Intl

Wed 7/15

5:00 am-5:30 pm

1 stop12h 30m

$376

RaleighSan Juan

RDU - SJU

RDUSJU

Raleigh-Durham

Mon 6/22

10:40 am-11:35 pm

2 stops12h 55m

San Juan Luis Munoz Marin Intl

Fri 6/26

5:30 am-5:30 pm

1 stop12h 00m

$422

RaleighSan Juan

RDU - SJU

RDUSJU

Raleigh-Durham

Tue 7/14

10:25 am-6:25 pm

2 stops8h 00m

San Juan Luis Munoz Marin Intl

Thu 7/23

1:15 pm-10:20 pm

2 stops9h 05m

$426

RaleighSan Juan

RDU - SJU

RDUSJU

Raleigh-Durham

Mon 6/1

10:10 am-8:00 pm

2 stops9h 50m

San Juan Luis Munoz Marin Intl

Fri 6/12

5:00 am-12:45 pm

2 stops7h 45m

$436

RaleighSan Juan

RDU - SJU

RDUSJU

Raleigh-Durham

Sat 5/2

11:00 am-9:25 pm

2 stops10h 25m

San Juan Luis Munoz Marin Intl

Sun 5/3

5:00 am-3:10 pm

2 stops10h 10m

$437
Quickest round-trip

RaleighSan Juan

RDU - SJU

RDUSJU

Raleigh-Durham

Thu 6/18

5:40 pm-12:15 am

1 stop6h 35m

San Juan Luis Munoz Marin Intl

Mon 6/29

5:00 am-12:45 pm

2 stops7h 45m

$439

RaleighSan Juan

RDU - SJU

RDUSJU

Raleigh-Durham

Fri 5/8

2:00 pm-11:25 pm

2 stops9h 25m

San Juan Luis Munoz Marin Intl

Tue 5/12

11:25 am-9:35 pm

2 stops10h 10m

$455

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/8

Showing 1-10 of 23 resultsSorted by cheapest first
1
2
3

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.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

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 March 6, 2026.

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 62 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, August is the cheapest month in which you can book a flight from Raleigh to San Juan (average of $124). Flying from Raleigh to San Juan in October is currently the most expensive (average of $215). 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 March 9, 2026.

It’s optimal to fly from Raleigh to San Juan in the evening. By choosing this option you can save up to 19% 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 February 21, 2026.

Travelers seeking maximum savings on their Raleigh to San Juan flight should consider departing on Monday evenings when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Raleigh to San Juan?

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 153 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 17% 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 March 9, 2026.
See what other customers who have flown with Southwest, Delta, and JetBlue 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.

Food

7.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

KOA - HNL

pretty smooth and fast service ever, that flight is very helpful each and everyone for price and also fright for free..

Food

7.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

KOA - HNL

pretty smooth and fast service ever, that flight is very helpful each and everyone for price and also fright for free..

Food

7.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

KOA - HNL

pretty smooth and fast service ever, that flight is very helpful each and everyone for price and also fright for free..

Food

7.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

KOA - HNL

pretty smooth and fast service ever, that flight is very helpful each and everyone for price and also fright for free..

Food

7.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

KOA - HNL

pretty smooth and fast service ever, that flight is very helpful each and everyone for price and also fright for free..

Food

7.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

KOA - HNL

pretty smooth and fast service ever, that flight is very helpful each and everyone for price and also fright for free..

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.
  • What airport do you fly from for flights from Raleigh to San Juan?

    For a flight from Raleigh to San Juan, you will be flying from Raleigh-Durham. Raleigh-Durham (RDU) is just 11.1 mi from the center of the city. Raleigh-Durham is the only Raleigh airport and it handles 0 outbound flights to San Juan per day. 7 airlines have flights to San Juan from Raleigh-Durham on a regular basis.

  • How long is the flight from Raleigh to San Juan?

    Airlines like Southwest fly from Raleigh to San Juan in about 9h 40m. The time it takes to get you to your destination can typically vary by up to . Raleigh and San Juan are separated by a distance of 1435 mi.

  • What are the cheapest airlines flying from Raleigh to San Juan round-trip?

    According to our current data, Spirit Airlines ($95), Frontier ($120), and Delta ($151) offers the cheapest pricing from Raleigh to San Juan. Spirit Airlines is priced at 71% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Raleigh to San Juan one-way?

    For one-way options, check prices for Spirit Airlines. According to our data, you can fly for as low as $41. Users have also found prices from $82 and $122 on Frontier and United Airlines, respectively.

  • What are the most reliable airlines from Raleigh to San Juan?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Raleigh to San Juan on time: JetBlue (77%), Delta (67%), Frontier (57%).

  • What are the cheapest flights from Raleigh to San Juan?

    Looking at all options, your cheapest flight can be booked for $99. While the most popular route (Raleigh-Durham - San Juan Luis Munoz Marin Intl) can be booked for $210 on average, our data indicates $254 when flying from Raleigh to San Juan.

  • Can I find deals for flights from Raleigh to San Juan that include hotel bookings?

    Yes. In addition to deals on Raleigh to San Juan flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Raleigh to San Juan?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Raleigh to San Juan.

  • Can I find deals for business class flights from Raleigh to San Juan?

    Yes. Cheapflights offers flight deals from Raleigh to San Juan by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Raleigh to San Juan?

    Currently, August is the cheapest month in which you can book a flight from Raleigh to San Juan (average of $124). Flying from Raleigh to San Juan in October is currently the most expensive (average of $215). 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.

See more FAQs

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.

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 March 9, 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$95Average$184FlexibilityNo cancel feeOn-time65%
FrontierCheapest$120Average$274FlexibilityNo cancel feeOn-time62%
DeltaCheapest$151Average$292FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$189Average$366FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$217Average$339FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$281Average$408FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$289Average$432FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.