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San Juan

$114+ Cheap flights from Charleston (CHS) 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 7/28. Fares are subject to change and may not be available on all flights or dates of travel.
CHS — SJU
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from Charleston to San Juan are usually found in September or October, booked 76 days in advance, depart on a Tuesday or Friday and return on a Monday

Cheap flight deals from Charleston to San Juan

Discover tips and strategies to find the most affordable flight options for your journey from Charleston (CHS) 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 June 12, 2025.

Round-trip from

$165
(Priceline)

One-way from

$114
(CheapOair)

Popular in

December

Cheapest in

September

Average price

$504
From Charleston to San Juan
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One-way flight from Charleston to San Juan
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Highest demand for flights based on searches. 14% potential increase in price ($74 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($24 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Charleston to San Juan

Cheapest flights from Charleston to San Juan
Explore the most affordable flight options available from Charleston to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This Priceline deal was found by Cheapflights users on 6/10. 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.
Thu 9/113:41 pmCHS - SJU
1 stop8h 17mFrontier
Sat 9/131:11 amSJU - CHS
1 stop13h 25mFrontier
Deal found 6/10$165
This Cheapflightsfares deal was found by Cheapflights users on 6/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/219:38 amCHS - SJU
1 stop11h 31mSpirit Airlines
Sun 7/2711:59 pmSJU - CHS
1 stop13h 28mSpirit Airlines
Deal found 6/11$205
This Priceline deal was found by Cheapflights users on 6/11. 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 7/289:05 amCHS - SJU
1 stop14h 54mMultiple Airlines
Sun 8/31:37 amSJU - CHS
1 stop8h 16mMultiple Airlines
Deal found 6/11$239
This American Airlines deal was found by Cheapflights users on 6/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/247:08 amCHS - SJU
1 stop5h 38mAmerican Airlines
Wed 10/13:55 pmSJU - CHS
2 stops16h 20mAmerican Airlines
Deal found 6/12$251
This United Airlines deal was found by Cheapflights users on 6/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/256:00 amCHS - SJU
1 stop7h 45mUnited Airlines
Sat 11/12:05 amSJU - CHS
1 stop7h 51mUnited Airlines
Deal found 6/10$280
This Southwest deal was found by Cheapflights users on 6/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/242:40 pmCHS - SJU
1 stop10h 05mSouthwest
Sun 10/265:45 amSJU - CHS
1 stop9h 50mSouthwest
Deal found 6/11$308
This Delta deal was found by Cheapflights users on 6/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/94:30 pmCHS - SJU
1 stop5h 47mDelta
Sat 12/206:20 pmSJU - CHS
1 stop6h 38mDelta
Deal found 6/11$353
This JetBlue deal was found by Cheapflights users on 6/10. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/1611:00 amCHS - SJU
1 stop8h 35mJetBlue
Mon 7/213:05 amSJU - CHS
1 stop7h 10mJetBlue
Deal found 6/10$365

Cheapflights Fare Finder

Customize your flight search to find flights from Charleston 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 June 12, 2025.
Use the filters below to find and compare flights from Charleston to San Juan that are best for you.

Fly from

Charleston

Fly to

San Juan

Route

Depart

Return

Price

CharlestonSan Juan

CHS - SJU

CHSSJU

Charleston

Thu 9/11

3:41 pm-11:58 pm

1 stop8h 17m

San Juan Luis Munoz Marin Intl

Sat 9/13

1:11 am-2:36 pm

1 stop13h 25m

$165

CharlestonSan Juan

CHS - SJU

CHSSJU

Charleston

Mon 7/21

9:38 am-9:09 pm

1 stop11h 31m

San Juan Luis Munoz Marin Intl

Sun 7/27

11:59 pm-1:27 pm

1 stop13h 28m

$205

CharlestonSan Juan

CHS - SJU

CHSSJU

Charleston

Mon 7/28

9:05 am-11:59 pm

1 stop14h 54m

San Juan Luis Munoz Marin Intl

Sun 8/3

1:37 am-9:53 am

1 stop8h 16m

$239

CharlestonSan Juan

CHS - SJU

CHSSJU

Charleston

Wed 9/24

7:08 am-12:46 pm

1 stop5h 38m

San Juan Luis Munoz Marin Intl

Wed 10/1

3:55 pm-8:15 am

2 stops16h 20m

$251

CharlestonSan Juan

CHS - SJU

CHSSJU

Charleston

Sat 10/25

6:00 am-1:45 pm

1 stop7h 45m

San Juan Luis Munoz Marin Intl

Sun 11/2

8:30 am-2:39 pm

1 stop7h 09m

$280

CharlestonSan Juan

CHS - SJU

CHSSJU

Charleston

Fri 10/24

2:40 pm-12:45 am

1 stop10h 05m

San Juan Luis Munoz Marin Intl

Sun 10/26

5:45 am-3:35 pm

1 stop9h 50m

$308

CharlestonSan Juan

CHS - SJU

CHSSJU

Charleston

Tue 12/9

4:30 pm-11:17 pm

1 stop5h 47m

San Juan Luis Munoz Marin Intl

Sat 12/20

6:20 pm-11:58 pm

1 stop6h 38m

$353

CharlestonSan Juan

CHS - SJU

CHSSJU

Charleston

Wed 7/2

9:30 am-2:59 pm

1 stop5h 29m

San Juan Luis Munoz Marin Intl

Mon 7/7

3:05 am-10:15 am

1 stop7h 10m

$362

CharlestonSan Juan

CHS - SJU

CHSSJU

Charleston

Mon 7/28

9:05 am-8:39 pm

1 stop11h 34m

$114

CharlestonSan Juan

CHS - SJU

CHSSJU

Charleston

Sat 6/21

9:42 am-7:19 pm

1 stop9h 37m

$124

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 15 results
1
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Best time to book a flight from Charleston to San Juan

Have a flexible travel schedule? Discover the best time to fly to San Juan from Charleston 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 Charleston to San Juan

How far ahead should I book a flight from Charleston to San Juan?

Use this chart to determine the optimal time to book a round-trip flight from Charleston to San Juan. Price data was last updated on June 9, 2025.

The best time to book flights from Charleston to San Juan is 76 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, September is the cheapest month in which you can book a flight from Charleston to San Juan (average of $254). Flying from Charleston 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 CHS to SJU?

Find hourly flight availability from Charleston 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 June 12, 2025.

A simple way to save on the total cost of your ticket is to fly from Charleston to San Juan in the evening. If you’re flexible enough to do this you can expect to save up to 30% on your trip compared to booking a flight in the afternoon.

What is the cheapest day to fly from Charleston to San Juan?

Use this chart to determine the cheapest time to fly round-trip from Charleston to San Juan. Price data was last updated on December 16, 2024.

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

Rainfall in San Juan by month

Plan your trip to San Juan by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Juan ranges from 2.2 - 6.1 inches per month. November is typically the wettest month, when rainfall can reach 6.1 in. February is typically the driest time to visit San Juan when rainfall is around 2.2 in.

Temperature in San Juan by month

Plan your trip to San Juan by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Juan, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 77.0 F).

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 June 12, 2025.
Peruse reviews from past customers who have flown with Southwest, Delta and United Airlines from Charleston to San Juan to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,287 reviews

Food

7.1

Overall

8.0

Comfort

8.0

Entertainment

7.6

Boarding

8.2

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Southwest
8.0
Very good
4,287 reviews
Southwest
8.0
Very good
4,287 reviews

Food

7.1

Overall

8.0

Comfort

8.0

Entertainment

7.6

Boarding

8.2

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Delta
8.0
Very good
7,950 reviews
Southwest
8.0
Very good
4,287 reviews

Food

7.1

Overall

8.0

Comfort

8.0

Entertainment

7.6

Boarding

8.2

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
United Airlines
7.4
Good
8,790 reviews
Southwest
8.0
Very good
4,287 reviews

Food

7.1

Overall

8.0

Comfort

8.0

Entertainment

7.6

Boarding

8.2

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
JetBlue
7.3
Good
2,925 reviews
Southwest
8.0
Very good
4,287 reviews

Food

7.1

Overall

8.0

Comfort

8.0

Entertainment

7.6

Boarding

8.2

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,287 reviews

Food

7.1

Overall

8.0

Comfort

8.0

Entertainment

7.6

Boarding

8.2

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Related info for your journey

Find useful and relevant information for your journey from Charleston 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 Charleston to San Juan?

    Charleston (CHS), located 10.2 mi from the city center, is the airport you fly out of when you book flights from Charleston to San Juan. 6 airlines have flights from Charleston to San Juan on a regular basis. Booking flights from Charleston to San Juan should not be difficult; the airport handles an average of 0 outbound flights to San Juan per day.

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

    Flying on Frontier is currently your cheapest option to San Juan, with prices starting at $165. Additional round-trip tickets that might be worth considering are offered by Spirit Airlines and American Airlines, with the lowest prices starting at $205 and $251, respectively. Frontier is currently priced 61% below the average price you’ll pay for this route.

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

    The cheapest airlines for a one-way flight from Charleston to San Juan are Frontier ($114), Spirit Airlines ($124), and Southwest ($126).

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Charleston 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 Charleston to San Juan?

    Currently, September is the cheapest month in which you can book a flight from Charleston to San Juan (average of $254). Flying from Charleston 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.

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Top 6 airlines flying from Charleston to San Juan

Discover the top 6 airlines that operate flights from Charleston 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$137Average$225FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$231Average$409FlexibilityNo cancel feeOn-time69%
JetBlueCheapest$233Average$369FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$280Average$469FlexibilityNo cancel feeOn-time71%
DeltaCheapest$303Average$457FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$352Average$463FlexibilityNo cancel feeOn-time63%

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