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San Juan

$119+ 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 9/21. Fares are subject to change and may not be available on all flights or dates of travel.
CHS — SJU
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheapflights Tip: The best prices from Charleston to San Juan are usually found in October or January, 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 September 15, 2025.

Round-trip from

$238
(Priceline)

One-way from

$119
(Priceline)

Popular in

December

Cheapest in

October

Average price

$394
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. 3% potential increase in price ($15 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($15 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 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 September 15, 2025.

This Priceline deal was found by Cheapflights users on 9/14. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/253:26 pmCHS - SJU
1 stop7h 57mFrontier
Sat 9/2712:28 amSJU - CHS
1 stop14h 03mFrontier
Deal found 9/14$238
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 12/45:40 pmCHS - SJU
1 stop17h 49mMultiple Airlines
Mon 12/83:00 pmSJU - CHS
1 stop26h 45mMultiple Airlines
Deal found 9/15$250
This Priceline deal was found by Cheapflights users on 9/15. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/248:53 amCHS - SJU
1 stop15h 36mFrontier
Sat 10/251:59 amSJU - CHS
1 stop12h 31mFrontier
Deal found 9/15$251
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Mon 11/37:15 pmCHS - SJU
1 stop7h 18mMultiple Airlines
Tue 11/1112:10 pmSJU - CHS
2 stops23h 37mMultiple Airlines
Deal found 9/15$265
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Wed 11/55:20 pmCHS - SJU
2 stops15h 32mMultiple Airlines
Fri 11/146:17 pmSJU - CHS
1 stop23h 28mMultiple Airlines
Deal found 9/14$267
This American Airlines deal was found by Cheapflights users on 9/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/87:54 pmCHS - SJU
1 stop15h 05mAmerican Airlines
Wed 12/172:50 pmSJU - CHS
2 stops9h 23mAmerican Airlines
Deal found 9/14$271
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Fri 11/1411:40 amCHS - SJU
1 stop14h 53mMultiple Airlines
Mon 11/172:22 pmSJU - CHS
1 stop20h 06mMultiple Airlines
Deal found 9/14$278
This CheapOair deal was found by Cheapflights users on 9/14. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/15:20 pmCHS - SJU
1 stop18h 15mJetBlue
Thu 11/65:05 amSJU - CHS
1 stop12h 17mJetBlue
Deal found 9/14$283
This Priceline deal was found by Cheapflights users on 9/14. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/147:37 pmCHS - SJU
1 stop15h 39mFrontier
Sun 11/162:11 amSJU - CHS
1 stop17h 41mFrontier
Deal found 9/14$291
This Kiwi.com deal was found by Cheapflights users on 9/13. 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 10/36:08 pmCHS - SJU
1 stop7h 50mMultiple Airlines
Mon 10/63:22 pmSJU - CHS
2 stops27h 19mMultiple Airlines
Deal found 9/13$294
This CheapOair deal was found by Cheapflights users on 9/13. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/49:40 amCHS - SJU
1 stop24h 28mJetBlue
Mon 10/63:03 amSJU - CHS
1 stop7h 22mJetBlue
Deal found 9/13$298

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 September 15, 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

Fri 10/24

8:53 am-12:29 am

1 stop15h 36m

San Juan Luis Munoz Marin Intl

Sat 10/25

1:59 am-2:30 pm

1 stop12h 31m

$251

CharlestonSan Juan

CHS - SJU

CHSSJU

Charleston

Mon 12/8

7:54 pm-11:59 am

1 stop15h 05m

San Juan Luis Munoz Marin Intl

Wed 12/17

2:50 pm-11:13 pm

2 stops9h 23m

$271

CharlestonSan Juan

CHS - SJU

CHSSJU

Charleston

Sat 10/4

9:40 am-10:08 am

1 stop24h 28m

San Juan Luis Munoz Marin Intl

Mon 10/6

3:03 am-10:25 am

1 stop7h 22m

$298

CharlestonSan Juan

CHS - SJU

CHSSJU

Charleston

Fri 2/20

4:43 pm-1:12 am

1 stop7h 29m

San Juan Luis Munoz Marin Intl

Fri 2/27

1:59 am-11:19 am

1 stop10h 20m

$316

CharlestonSan Juan

CHS - SJU

CHSSJU

Charleston

Tue 3/10

4:43 pm-12:12 am

1 stop7h 29m

San Juan Luis Munoz Marin Intl

Wed 3/11

7:40 am-3:48 pm

1 stop8h 08m

$321

CharlestonSan Juan

CHS - SJU

CHSSJU

Charleston

Wed 10/15

3:31 pm-10:10 pm

1 stop6h 39m

San Juan Luis Munoz Marin Intl

Mon 10/20

7:10 am-7:01 pm

1 stop11h 51m

$332

CharlestonSan Juan

CHS - SJU

CHSSJU

Charleston

Mon 2/23

4:43 pm-1:12 am

1 stop7h 29m

San Juan Luis Munoz Marin Intl

Thu 2/26

1:59 am-11:19 am

1 stop10h 20m

$335

CharlestonSan Juan

CHS - SJU

CHSSJU

Charleston

Thu 10/2

11:10 am-12:57 am

1 stop13h 47m

San Juan Luis Munoz Marin Intl

Mon 10/6

6:00 am-6:05 pm

1 stop12h 05m

$337

CharlestonSan Juan

CHS - SJU

CHSSJU

Charleston

Sun 3/1

12:05 pm-11:47 pm

1 stop10h 42m

San Juan Luis Munoz Marin Intl

Sat 3/7

8:40 am-3:48 pm

1 stop8h 08m

$358

CharlestonSan Juan

CHS - SJU

CHSSJU

Charleston

Sat 1/3

8:07 pm-9:36 am

1 stop12h 29m

San Juan Luis Munoz Marin Intl

Thu 1/8

6:50 pm-10:17 am

1 stop16h 27m

$368

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 18 results
1
2

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 September 12, 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 September 15, 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.

How much does it cost to fly round-trip from Charleston 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 15, 2025.
Read reviews from past customers who have flown Southwest, Delta, and American Airlines from Charleston to San Juan. 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
4,242 reviews

Crew

8.6

Comfort

8.0

Overall

8.0

Entertainment

7.5

Boarding

8.1

Food

7.0

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
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Crew

8.6

Comfort

8.0

Overall

8.0

Entertainment

7.5

Boarding

8.1

Food

7.0

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
7,954 reviews
Southwest
8.0
Very good
4,242 reviews

Crew

8.6

Comfort

8.0

Overall

8.0

Entertainment

7.5

Boarding

8.1

Food

7.0

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
4,242 reviews

Crew

8.6

Comfort

8.0

Overall

8.0

Entertainment

7.5

Boarding

8.1

Food

7.0

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
2,912 reviews
Southwest
8.0
Very good
4,242 reviews

Crew

8.6

Comfort

8.0

Overall

8.0

Entertainment

7.5

Boarding

8.1

Food

7.0

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
Spirit Airlines
6.3
Okay
8,015 reviews
Southwest
8.0
Very good
4,242 reviews

Crew

8.6

Comfort

8.0

Overall

8.0

Entertainment

7.5

Boarding

8.1

Food

7.0

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 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.

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

    American Airlines and JetBlue can get you from Charleston to San Juan in just under 15h 05m. Your travel time can differ by up to 9h 23m. There are 1323 mi between Charleston and San Juan. This flight may include one or multiple stops.

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

    Flying on Spirit Airlines is currently your cheapest option to San Juan, with prices starting at $129. Additional round-trip tickets that might be worth considering are offered by JetBlue and Delta, with the lowest prices starting at $195 and $241, respectively. Spirit Airlines is currently priced 71% 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 ($119), American Airlines ($139), and Spirit Airlines ($162).

  • 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.

See more FAQs

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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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$129Average$247FlexibilityNo cancel feeOn-time65%
JetBlueCheapest$195Average$404FlexibilityNo cancel feeOn-time62%
DeltaCheapest$241Average$452FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$280Average$421FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$282Average$472FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$371Average$534FlexibilityNo cancel feeOn-time63%

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