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San Juan

$121+ 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 4/26. Fares are subject to change and may not be available on all flights or dates of travel.
RDU — SJU
May 17 — May 241
Sun 5/17
Sun 5/24
1 adult, Economy
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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 Wednesday or Friday 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 April 17, 2026.

This eDestinos deal was found by Cheapflights users on 4/15. 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.
Wed 6/245:30 pm
RDU
-
SJU
1 stop8h 39m
Frontier
Tue 7/78:00 am
SJU
-
RDU
Nonstop3h 43m
Frontier
Deal found 4/15$222
This Kiwi.com deal was found by Cheapflights users on 4/15. 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 4/237:40 pm
RDU
-
SJU
1 stop6h 21m
Frontier
Thu 4/303:03 pm
SJU
-
RDU
1 stop8h 17m
Frontier
Deal found 4/15$223
This Orbitz deal was found by Cheapflights users on 4/15. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/275:37 pm
RDU
-
SJU
1 stop6h 52m
Multiple Airlines
Thu 4/3012:57 pm
SJU
-
RDU
1 stop7h 35m
Multiple Airlines
Deal found 4/15$224
This Super.com deal was found by Cheapflights users on 4/14. 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 4/276:10 am
RDU
-
SJU
1 stop7h 58m
Frontier
Sun 5/106:41 pm
SJU
-
RDU
1 stop12h 43m
Frontier
Deal found 4/14$225
This Frontier deal was found by Cheapflights users on 4/16. 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 5/315:07 pm
RDU
-
SJU
1 stop10h 54m
Frontier
Sat 6/135:15 pm
SJU
-
RDU
1 stop7h 07m
Frontier
Deal found 4/16$226
This Frontier deal was found by Cheapflights users on 4/14. 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.
Mon 4/278:14 pm
RDU
-
SJU
Nonstop3h 29m
Frontier
Wed 4/293:21 am
SJU
-
RDU
1 stop6h 38m
Frontier
Deal found 4/14$227
This Super.com deal was found by Cheapflights users on 4/13. 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.
Sun 6/2812:56 pm
RDU
-
SJU
Nonstop3h 38m
Frontier
Thu 8/68:00 am
SJU
-
RDU
Nonstop3h 43m
Frontier
Deal found 4/13$228
This Frontier deal was found by Cheapflights users on 4/14. 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.
Wed 5/206:15 am
RDU
-
SJU
1 stop7h 52m
Frontier
Wed 5/276:30 am
SJU
-
RDU
1 stop12h 13m
Frontier
Deal found 4/14$229
This Super.com deal was found by Cheapflights users on 4/13. 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.
Fri 5/18:14 pm
RDU
-
SJU
Nonstop3h 29m
Frontier
Fri 5/86:09 pm
SJU
-
RDU
1 stop15h 12m
Frontier
Deal found 4/13$230
This Kiwi.com deal was found by Cheapflights users on 4/14. 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.
Mon 6/15:07 pm
RDU
-
SJU
1 stop6h 52m
Frontier
Fri 6/55:15 pm
SJU
-
RDU
1 stop7h 09m
Frontier
Deal found 4/14$231
This Kiwi.com deal was found by Cheapflights users on 4/16. 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 5/19:37 pm
RDU
-
SJU
2 stops27h 17m
Multiple Airlines
Wed 5/66:00 am
SJU
-
RDU
1 stop13h 04m
Multiple Airlines
Deal found 4/16$232
This Kiwi.com deal was found by Cheapflights users on 4/13. 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 5/18:14 pm
RDU
-
SJU
Nonstop3h 29m
Frontier
Wed 5/136:41 pm
SJU
-
RDU
1 stop12h 43m
Frontier
Deal found 4/13$233

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 April 17, 2026.

Round-trip from

$222
(eDestinos)

One-way from

$121
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$365
From Raleigh-Durham to San Juan
Search Deals
One-way flight from Raleigh-Durham to San Juan
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($19 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

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 April 17, 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

Mon 5/4

6:10 pm-11:55 pm

1 stop5h 45m

San Juan Luis Munoz Marin Intl

Tue 5/5

5:35 am-4:30 pm

2 stops10h 55m

$357

RaleighSan Juan

RDU - SJU

RDUSJU

Raleigh-Durham

Wed 4/29

6:00 am-12:34 pm

1 stop6h 34m

San Juan Luis Munoz Marin Intl

Wed 4/29

3:56 pm-12:50 am

1 stop8h 54m

$401
Quickest round-trip

RaleighSan Juan

RDU - SJU

RDUSJU

Raleigh-Durham

Thu 5/7

10:28 am-1:56 pm

Nonstop3h 28m

San Juan Luis Munoz Marin Intl

Mon 5/11

6:30 am-10:08 am

Nonstop3h 38m

$430

RaleighSan Juan

RDU - SJU

RDUSJU

Raleigh-Durham

Fri 5/1

6:20 am-2:44 pm

1 stop8h 24m

San Juan Luis Munoz Marin Intl

Wed 5/6

7:40 am-5:23 pm

1 stop9h 43m

$514

RaleighSan Juan

RDU - SJU

RDUSJU

Raleigh-Durham

Fri 5/1

11:00 am-2:28 pm

Nonstop3h 28m

San Juan Luis Munoz Marin Intl

Thu 5/7

6:00 am-9:38 am

Nonstop3h 38m

$554

RaleighSan Juan

RDU - SJU

RDUSJU

Raleigh-Durham

Fri 6/19

4:05 pm-1:20 am

2 stops9h 15m

San Juan Luis Munoz Marin Intl

Mon 6/22

5:00 am-12:45 pm

2 stops7h 45m

$591

RaleighSan Juan

RDU - SJU

RDUSJU

Raleigh-Durham

Wed 6/24

4:25 pm-12:15 am

2 stops7h 50m

San Juan Luis Munoz Marin Intl

Mon 6/29

5:00 am-12:45 pm

2 stops7h 45m

$636

RaleighSan Juan

RDU - SJU

RDUSJU

Raleigh-Durham

Thu 7/2

10:40 am-7:25 pm

2 stops8h 45m

San Juan Luis Munoz Marin Intl

Tue 7/7

12:20 pm-10:50 pm

2 stops10h 30m

$636

RaleighSan Juan

RDU - SJU

RDUSJU

Raleigh-Durham

Wed 7/8

4:25 pm-12:15 am

2 stops7h 50m

San Juan Luis Munoz Marin Intl

Sat 7/18

6:00 am-3:45 pm

2 stops9h 45m

$646

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

Mon 5/11

6:50 am-5:30 pm

2 stops10h 40m

$666

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/12

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 April 10, 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, July is the cheapest month in which you can book a flight from Raleigh to San Juan (average of $56). Flying from Raleigh to San Juan in April is currently the most expensive (average of $774). 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 April 17, 2026.

It’s optimal to fly from Raleigh to San Juan in the evening. By choosing this option you can save up to 16% 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 April 11, 2026.

Travelers seeking maximum savings on their Raleigh to San Juan flight should consider departing on Sunday afternoons 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.

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 April 17, 2026.

The most flights from RDU to PR1 are scheduled on a Monday (1 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (1 on average).

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 150 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 Sunday 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 April 17, 2026.
See what other customers who have flown with Southwest,Delta, andJetBlue 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.
Southwest
8.0
Very good
4,329 reviews

Crew

8.6

Entertainment

7.5

Boarding

8.1

Overall

8.0

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Southwest
8.0
Very good
4,329 reviews
Southwest
8.0
Very good
4,329 reviews

Crew

8.6

Entertainment

7.5

Boarding

8.1

Overall

8.0

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Delta
7.9
Good
8,409 reviews
Southwest
8.0
Very good
4,329 reviews

Crew

8.6

Entertainment

7.5

Boarding

8.1

Overall

8.0

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
JetBlue
7.2
Good
2,939 reviews
Southwest
8.0
Very good
4,329 reviews

Crew

8.6

Entertainment

7.5

Boarding

8.1

Overall

8.0

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
American Airlines
7.1
Good
11,590 reviews
Southwest
8.0
Very good
4,329 reviews

Crew

8.6

Entertainment

7.5

Boarding

8.1

Overall

8.0

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Frontier
5.7
Fair
2,987 reviews
Southwest
8.0
Very good
4,329 reviews

Crew

8.6

Entertainment

7.5

Boarding

8.1

Overall

8.0

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

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 1 outbound flight 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, United Airlines, and JetBlue fly from Raleigh to San Juan in about 3h 28m. The time it takes to get you to your destination can typically vary by up to 3h 06m. Raleigh and San Juan are separated by a distance of 1435 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    According to our current data, Spirit Airlines ($78), Frontier ($123), and Delta ($151) offers the cheapest pricing from Raleigh to San Juan. Spirit Airlines is priced at 76% 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 Frontier. According to our data, you can fly for as low as $77. Users have also found prices from $130 and $130 on JetBlue 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%), Frontier (50%), Delta (44%).

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

    Looking at all options, your cheapest flight can be booked for $149. While the most popular route (Raleigh-Durham - San Juan Luis Munoz Marin Intl) can be booked for $170 on average, our data indicates $294 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, July is the cheapest month in which you can book a flight from Raleigh to San Juan (average of $56). Flying from Raleigh to San Juan in April is currently the most expensive (average of $774). 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 April 17, 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$78Average$139FlexibilityNo cancel feeOn-time65%
FrontierCheapest$123Average$284FlexibilityNo cancel feeOn-time62%
DeltaCheapest$151Average$293FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$195Average$371FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$253Average$338FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$281Average$415FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$289Average$431FlexibilityNo cancel feeOn-time71%

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