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$126+ 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 11/6. Fares are subject to change and may not be available on all flights or dates of travel.
RDU — SJU
Oct 8 — Oct 151
Wed 10/8
Wed 10/15
1 adult, Economy
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Cheapflights Tip: The best prices from Raleigh-Durham to San Juan are usually found in October or September, booked 77 days in advance, depart on a Monday or Friday and return on a Friday

Cheap 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 September 8, 2025.

Round-trip from

$214
(Frontier)

One-way from

$126
(Mytrip)

Popular in

December

Cheapest in

October

Average price

$274
From Raleigh-Durham to San Juan
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One-way flight from Raleigh-Durham to San Juan
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Highest demand for flights based on searches. 3% potential increase in price ($11 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find 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 September 8, 2025.

This Frontier deal was found by Cheapflights users on 9/8. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/231:51 pmRDU - SJU
1 stop6h 05mFrontier
Thu 10/309:00 amSJU - RDU
1 stop10h 18mFrontier
Deal found 9/8$214
This Frontier deal was found by Cheapflights users on 9/8. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/207:03 pmRDU - SJU
1 stop7h 31mFrontier
Thu 9/259:26 pmSJU - RDU
2 stops20h 12mFrontier
Deal found 9/8$216
This Frontier deal was found by Cheapflights users on 9/8. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/241:51 pmRDU - SJU
1 stop6h 05mFrontier
Sat 11/15:51 pmSJU - RDU
2 stops25h 11mFrontier
Deal found 9/8$217
This Frontier deal was found by Cheapflights users on 9/8. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/241:51 pmRDU - SJU
1 stop6h 05mFrontier
Tue 11/49:00 amSJU - RDU
1 stop11h 18mFrontier
Deal found 9/8$222
This Frontier deal was found by Cheapflights users on 9/6. 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.
Wed 10/86:30 amRDU - SJU
1 stop5h 45mFrontier
Fri 10/101:59 amSJU - RDU
2 stops16h 39mFrontier
Deal found 9/6$224
This Trip.com deal was found by Cheapflights users on 9/7. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/244:20 pmRDU - SJU
Nonstop3h 30mJetBlue
Sat 11/19:25 amSJU - RDU
Nonstop3h 40mJetBlue
Deal found 9/7$226
This Trip.com deal was found by Cheapflights users on 9/7. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/312:00 pmRDU - SJU
Nonstop3h 23mJetBlue
Sun 11/210:42 amSJU - RDU
Nonstop3h 40mJetBlue
Deal found 9/7$228
This Kiwi.com deal was found by Cheapflights users on 9/8. 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.
Mon 9/293:40 pmRDU - SJU
1 stop10h 18mMultiple Airlines
Sat 10/44:51 pmSJU - RDU
1 stop15h 23mMultiple Airlines
Deal found 9/8$234
This Kiwi.com deal was found by Cheapflights users on 9/7. 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.
Sun 9/219:23 amRDU - SJU
1 stop25h 41mMultiple Airlines
Mon 9/224:51 pmSJU - RDU
1 stop26h 13mMultiple Airlines
Deal found 9/7$236
This Frontier deal was found by Cheapflights users on 9/7. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/311:52 amRDU - SJU
2 stops11h 31mFrontier
Sat 10/48:00 amSJU - RDU
1 stop9h 11mFrontier
Deal found 9/7$239

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 September 8, 2025.
Use the filters below to find and compare flights from Raleigh to San Juan that are best for you.

Fly from

Raleigh

Fly to

San Juan

Route

Depart

Return

Price

RaleighSan Juan

RDU - SJU

RDUSJU

Raleigh-Durham

Sat 10/11

5:50 pm-11:25 pm

1 stop5h 35m

San Juan Luis Munoz Marin Intl

Sat 10/18

5:45 am-5:10 pm

1 stop11h 25m

$261

RaleighSan Juan

RDU - SJU

RDUSJU

Raleigh-Durham

Sat 9/27

4:22 pm-11:57 pm

1 stop7h 35m

San Juan Luis Munoz Marin Intl

Fri 10/3

1:05 am-8:34 am

1 stop7h 29m

$261

RaleighSan Juan

RDU - SJU

RDUSJU

Raleigh-Durham

Thu 10/2

6:15 pm-12:45 am

1 stop6h 30m

San Juan Luis Munoz Marin Intl

Thu 10/9

5:50 am-1:35 pm

1 stop7h 45m

$261

RaleighSan Juan

RDU - SJU

RDUSJU

Raleigh-Durham

Fri 10/10

3:50 pm-12:45 am

1 stop8h 55m

San Juan Luis Munoz Marin Intl

Sat 10/18

5:45 am-3:20 pm

1 stop9h 35m

$261

RaleighSan Juan

RDU - SJU

RDUSJU

Raleigh-Durham

Mon 9/29

3:30 pm-6:57 pm

Nonstop3h 27m

San Juan Luis Munoz Marin Intl

Fri 10/3

4:32 pm-10:12 pm

1 stop5h 40m

$273

RaleighSan Juan

RDU - SJU

RDUSJU

Raleigh-Durham

Tue 10/21

7:15 am-1:52 pm

1 stop6h 37m

San Juan Luis Munoz Marin Intl

Sat 11/1

9:25 am-1:05 pm

Nonstop3h 40m

$279

RaleighSan Juan

RDU - SJU

RDUSJU

Raleigh-Durham

Wed 10/1

11:11 am-8:54 pm

1 stop9h 43m

San Juan Luis Munoz Marin Intl

Thu 10/2

11:45 am-3:24 pm

Nonstop3h 39m

$279

RaleighSan Juan

RDU - SJU

RDUSJU

Raleigh-Durham

Thu 12/18

10:20 am-2:40 pm

Nonstop3h 20m

San Juan Luis Munoz Marin Intl

Tue 12/23

6:50 am-9:34 am

Nonstop3h 44m

$282

RaleighSan Juan

RDU - SJU

RDUSJU

Raleigh-Durham

Wed 11/5

5:55 pm-12:35 am

1 stop5h 40m

San Juan Luis Munoz Marin Intl

Wed 11/12

6:40 am-3:55 pm

1 stop10h 15m

$291

RaleighSan Juan

RDU - SJU

RDUSJU

Raleigh-Durham

Wed 11/12

1:05 pm-11:20 pm

1 stop9h 15m

San Juan Luis Munoz Marin Intl

Sun 11/16

6:40 am-5:40 pm

1 stop12h 00m

$291

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/8

Showing 1-10 of 21 results
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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 August 29, 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, September is the cheapest month in which you can book a flight from Raleigh to San Juan (average of $254). Flying from Raleigh to San Juan in June is currently the most expensive (average of $339). 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 September 8, 2025.

It’s optimal to fly from Raleigh to San Juan in the evening. By choosing this option you can save up to 31% 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 Monday evenings when fares are most often at their lowest. Thursday 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?

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 September 8, 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.
Southwest
8.0
Very good
4,244 reviews

Food

7.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

8.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,244 reviews
Southwest
8.0
Very good
4,244 reviews

Food

7.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

8.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
8.0
Very good
7,966 reviews
Southwest
8.0
Very good
4,244 reviews

Food

7.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

8.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,244 reviews

Food

7.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

8.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
JetBlue
7.2
Good
2,914 reviews
Southwest
8.0
Very good
4,244 reviews

Food

7.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

8.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Frontier
5.8
Fair
3,187 reviews
Southwest
8.0
Very good
4,244 reviews

Food

7.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

8.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

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, United Airlines, and JetBlue fly from Raleigh to San Juan in about 3h 27m. The time it takes to get you to your destination can typically vary by up to 4h 08m. 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 ($100), and Delta ($184) offers the cheapest pricing from Raleigh to San Juan. Spirit Airlines is priced at 75% lower than the current average price of a flight leaving 3 months from now.

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

    Looking at all options, your cheapest flight can be booked for $128. While the most popular route (Raleigh-Durham - San Juan Luis Munoz Marin Intl) can be booked for $211 on average, our data indicates $248 when flying from Raleigh to San Juan.

  • Where are the most common layover locations when flying from Raleigh to San Juan?

    Most of the time, Raleigh to San Juan flights that have layovers will stop in Orlando.

  • What are some popular things to do or see while on a layover in Orlando?

    Orlando travelers tend to visit Walt Disney World Resort, Universal Orlando Resort, and International Drive more than anywhere else. Walt Disney World Resort, Universal Orlando Resort, and International Drive can be accessed by traveling approximately 16.2 mi, 10.2 mi, and 9.9 mi, respectively from Orlando. Travelers can rent a car at Orlando for an average daily rate of $32 to make sightseeing during their layover a little easier.

  • Where are the least popular layover locations for Raleigh to San Juan flights?

    Flights departing from Raleigh and landing in San Juan layover in Charlotte least frequently.

  • 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, September is the cheapest month in which you can book a flight from Raleigh to San Juan (average of $254). Flying from Raleigh to San Juan in June is currently the most expensive (average of $339). 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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Alternative routes for Raleigh to San Juan

See prices for flight routes from nearby airports that may be better suited for you.
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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 September 8, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$78Average$246FlexibilityNo cancel feeOn-time65%
FrontierCheapest$100Average$252FlexibilityNo cancel feeOn-time62%
DeltaCheapest$184Average$354FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$197Average$387FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$220Average$430FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$272Average$417FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$281Average$443FlexibilityNo cancel feeOn-time63%

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