San Juan

$118+ 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 5/2. Fares are subject to change and may not be available on all flights or dates of travel.
RDU — SJU
May 10 — May 171
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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 Monday and return on a Sunday

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 10, 2026.

This Kiwi.com deal was found by Cheapflights users on 4/5. 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 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
1 stop21h 45m
Multiple Airlines
Mon 5/43:03 am
SJU
-
RDU
1 stop6h 50m
Multiple Airlines
Deal found 4/5$220
This Super.com deal was found by Cheapflights users on 4/5. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/48:14 pm
RDU
-
SJU
Nonstop3h 29m
Frontier
Thu 5/77:00 am
SJU
-
RDU
Nonstop3h 57m
Frontier
Deal found 4/5$221
This Kiwi.com deal was found by Cheapflights users on 4/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/217:37 pm
RDU
-
SJU
1 stop6h 24m
Frontier
Sat 4/253:43 pm
SJU
-
RDU
1 stop7h 12m
Frontier
Deal found 4/5$222
This Priceline deal was found by Cheapflights users on 4/5. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/208:14 pm
RDU
-
SJU
Nonstop3h 29m
Multiple Airlines
Thu 4/236:30 am
SJU
-
RDU
Nonstop3h 38m
Multiple Airlines
Deal found 4/5$223
This Kiwi.com deal was found by Cheapflights users on 4/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/279:03 am
RDU
-
SJU
1 stop15h 55m
Multiple Airlines
Wed 4/292:00 pm
SJU
-
RDU
2 stops23h 33m
Multiple Airlines
Deal found 4/7$224
This Frontier deal was found by Cheapflights users on 4/6. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2010:51 pm
RDU
-
SJU
1 stop11h 03m
Frontier
Fri 4/243:08 am
SJU
-
RDU
1 stop7h 50m
Frontier
Deal found 4/6$225
This Super.com deal was found by Cheapflights users on 4/5. 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 Super.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
Sat 4/183:21 am
SJU
-
RDU
1 stop28h 35m
Frontier
Deal found 4/5$226
This Kiwi.com deal was found by Cheapflights users on 4/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/3010:38 pm
RDU
-
SJU
1 stop27h 23m
Frontier
Tue 5/56:41 pm
SJU
-
RDU
2 stops29h 52m
Frontier
Deal found 4/6$227
This CheapOair deal was found by Cheapflights users on 4/6. 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.
Mon 4/208:14 pm
RDU
-
SJU
Nonstop3h 29m
Multiple Airlines
Sat 4/256:30 am
SJU
-
RDU
Nonstop3h 38m
Multiple Airlines
Deal found 4/6$228
This Frontier deal was found by Cheapflights users on 4/6. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/213:07 pm
RDU
-
SJU
1 stop12h 54m
Frontier
Sat 5/309:45 pm
SJU
-
RDU
1 stop9h 39m
Frontier
Deal found 4/6$229
This Frontier deal was found by Cheapflights users on 4/6. 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 Frontier 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
Thu 4/233:03 pm
SJU
-
RDU
1 stop8h 40m
Frontier
Deal found 4/6$230
This Mytrip deal was found by Cheapflights users on 4/8. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/98:17 am
RDU
-
SJU
1 stop16h 12m
Multiple Airlines
Thu 4/1612:57 pm
SJU
-
RDU
1 stop7h 35m
Multiple Airlines
Deal found 4/8$231

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 10, 2026.

Round-trip from

$220
(Kiwi.com)

One-way from

$118
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$366
From Raleigh-Durham to San Juan
One-way flight from Raleigh-Durham to San Juan
Highest demand for flights based on searches. 5% potential increase in price ($18 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
Average for round-trip flights in April 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 April 10, 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

Wed 6/17

2:36 pm-2:09 am

1 stop11h 33m

San Juan Luis Munoz Marin Intl

Sun 6/21

5:15 pm-12:10 am

1 stop6h 55m

$321
Quickest round-trip

RaleighSan Juan

RDU - SJU

RDUSJU

Raleigh-Durham

Sat 4/18

3:10 pm-12:07 am

1 stop8h 57m

San Juan Luis Munoz Marin Intl

Tue 4/21

6:30 am-10:08 am

Nonstop3h 38m

$416

RaleighSan Juan

RDU - SJU

RDUSJU

Raleigh-Durham

Mon 4/13

6:15 am-8:38 pm

2 stops14h 23m

San Juan Luis Munoz Marin Intl

Mon 4/20

7:20 am-2:06 pm

1 stop6h 46m

$446

RaleighSan Juan

RDU - SJU

RDUSJU

Raleigh-Durham

Tue 4/14

11:25 am-9:05 pm

2 stops9h 40m

San Juan Luis Munoz Marin Intl

Sun 4/19

5:35 am-3:50 pm

2 stops10h 15m

$461

RaleighSan Juan

RDU - SJU

RDUSJU

Raleigh-Durham

Mon 6/8

4:05 pm-1:20 am

2 stops9h 15m

San Juan Luis Munoz Marin Intl

Wed 8/5

8:20 am-6:10 pm

2 stops9h 50m

$471

RaleighSan Juan

RDU - SJU

RDUSJU

Raleigh-Durham

Wed 4/29

11:25 am-9:05 pm

2 stops9h 40m

San Juan Luis Munoz Marin Intl

Mon 5/4

6:50 am-5:30 pm

2 stops10h 40m

$511

RaleighSan Juan

RDU - SJU

RDUSJU

Raleigh-Durham

Wed 5/13

6:20 am-8:38 pm

2 stops14h 18m

San Juan Luis Munoz Marin Intl

Thu 5/21

3:56 pm-12:50 am

1 stop8h 54m

$522

RaleighSan Juan

RDU - SJU

RDUSJU

Raleigh-Durham

Sun 6/7

10:20 am-6:15 pm

2 stops7h 55m

San Juan Luis Munoz Marin Intl

Thu 6/11

5:00 am-12:45 pm

2 stops7h 45m

$529

RaleighSan Juan

RDU - SJU

RDUSJU

Raleigh-Durham

Tue 6/16

4:25 pm-12:15 am

2 stops7h 50m

San Juan Luis Munoz Marin Intl

Mon 6/22

5:00 am-12:45 pm

2 stops7h 45m

$546

RaleighSan Juan

RDU - SJU

RDUSJU

Raleigh-Durham

Fri 4/17

10:10 am-8:00 pm

2 stops9h 50m

San Juan Luis Munoz Marin Intl

Sun 4/19

5:00 am-3:10 pm

2 stops10h 10m

$569

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/9

Showing 1-10 of 22 resultsSorted by cheapest first
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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 3, 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, March 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 $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 April 10, 2026.

It’s optimal to fly from Raleigh to San Juan in the evening. By choosing this option you can save up to 17% 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 4, 2026.

Travelers seeking maximum savings on their Raleigh to San Juan flight should consider departing on Saturday 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 148 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 16% 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 10, 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.

Boarding

8.1

Comfort

8.0

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

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.

Boarding

8.1

Comfort

8.0

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

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.

Boarding

8.1

Comfort

8.0

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

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.

Boarding

8.1

Comfort

8.0

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

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.

Boarding

8.1

Comfort

8.0

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

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.

Boarding

8.1

Comfort

8.0

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

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 Frontier, JetBlue, and United Airlines fly from Raleigh to San Juan in about 8h 57m. The time it takes to get you to your destination can typically vary by up to 5h 26m. 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 (74%), Delta (56%), Frontier (55%).

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

    Looking at all options, your cheapest flight can be booked for $64. While the most popular route (Raleigh-Durham - San Juan Luis Munoz Marin Intl) can be booked for $168 on average, our data indicates $287 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, March 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 $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

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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 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$78Average$164FlexibilityNo cancel feeOn-time65%
FrontierCheapest$123Average$283FlexibilityNo cancel feeOn-time62%
DeltaCheapest$151Average$294FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$196Average$371FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$261Average$339FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$281Average$418FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$291Average$434FlexibilityNo cancel feeOn-time71%

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