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$107+ 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 8/22. Fares are subject to change and may not be available on all flights or dates of travel.
CHS — SJU
ago. 5 — ago. 121
mar. 8/5
mar. 8/12
1 adult, Economy
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Cheapflights Tip: The best prices from Charleston to San Juan are usually found in October or September, 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 julio 31, 2025.

Round-trip from

$218
(Frontier)

One-way from

$107
(Mytrip)

Popular in

December

Cheapest in

October

Average price

$428
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. 12% potential increase in price ($59 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($22 potential savings vs. average RT price).
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Average for round-trip flights in July 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 julio 31, 2025.

This Frontier deal was found by Cheapflights users on 7/30. 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.
vie. 10/243:31 pmCHS - SJU
1 stop8h 27mFrontier
sáb. 10/251:11 amSJU - CHS
1 stop13h 25mFrontier
Deal found 7/30$218
This American Airlines deal was found by Cheapflights users on 7/31. 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.
vie. 10/2410:37 amCHS - SJU
1 stop10h 37mAmerican Airlines
sáb. 10/257:10 amSJU - CHS
1 stop16h 55mAmerican Airlines
Deal found 7/31$246
This FlightHub deal was found by Cheapflights users on 7/30. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/2410:30 amCHS - SJU
2 stops27h 41mSpirit Airlines
dom. 10/262:48 pmSJU - CHS
1 stop17h 27mSpirit Airlines
Deal found 7/30$260
This Delta deal was found by Cheapflights users on 7/30. 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.
sáb. 10/42:55 pmCHS - SJU
1 stop7h 05mDelta
sáb. 10/117:15 amSJU - CHS
1 stop7h 54mDelta
Deal found 7/30$261
This United Airlines deal was found by Cheapflights users on 7/31. 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.
dom. 11/166:00 amCHS - SJU
1 stop7h 40mUnited Airlines
jue. 11/208:30 amSJU - CHS
1 stop7h 09mUnited Airlines
Deal found 7/31$287
This Southwest deal was found by Cheapflights users on 7/30. 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.
jue. 9/181:05 pmCHS - SJU
1 stop10h 25mSouthwest
mar. 9/237:20 amSJU - CHS
1 stop12h 50mSouthwest
Deal found 7/30$307
This Orbitz deal was found by Cheapflights users on 7/30. 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.
vie. 8/19:05 amCHS - SJU
1 stop11h 34mMultiple Airlines
jue. 8/71:37 amSJU - CHS
1 stop8h 16mMultiple Airlines
Deal found 7/30$327
This Expedia deal was found by Cheapflights users on 7/30. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/189:30 amCHS - SJU
1 stop11h 04mJetBlue
mié. 9/38:00 amSJU - CHS
1 stop11h 25mJetBlue
Deal found 7/30$339

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 julio 31, 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

vie. 10/24

3:31 pm-11:58 pm

1 stop8h 27m

San Juan Luis Munoz Marin Intl

sáb. 10/25

1:11 am-2:36 pm

1 stop13h 25m

$218

CharlestonSan Juan

CHS - SJU

CHSSJU

Charleston

vie. 10/24

10:37 am-9:14 pm

1 stop10h 37m

San Juan Luis Munoz Marin Intl

sáb. 10/25

7:10 am-12:05 am

1 stop16h 55m

$246

CharlestonSan Juan

CHS - SJU

CHSSJU

Charleston

vie. 10/24

10:30 am-2:11 pm

2 stops27h 41m

San Juan Luis Munoz Marin Intl

dom. 10/26

2:48 pm-8:15 am

1 stop17h 27m

$260

CharlestonSan Juan

CHS - SJU

CHSSJU

Charleston

sáb. 10/4

2:55 pm-10:00 pm

1 stop7h 05m

San Juan Luis Munoz Marin Intl

sáb. 10/11

7:15 am-3:09 pm

1 stop7h 54m

$261

CharlestonSan Juan

CHS - SJU

CHSSJU

Charleston

dom. 11/16

6:00 am-2:40 pm

1 stop7h 40m

San Juan Luis Munoz Marin Intl

mié. 11/19

2:05 am-8:56 am

1 stop7h 51m

$287

CharlestonSan Juan

CHS - SJU

CHSSJU

Charleston

jue. 9/18

1:05 pm-11:30 pm

1 stop10h 25m

San Juan Luis Munoz Marin Intl

mar. 9/23

7:20 am-8:10 pm

1 stop12h 50m

$307

CharlestonSan Juan

CHS - SJU

CHSSJU

Charleston

vie. 1/23

6:19 pm-3:55 am

1 stop8h 36m

San Juan Luis Munoz Marin Intl

lun. 1/26

11:40 am-3:56 pm

1 stop5h 16m

$330

CharlestonSan Juan

CHS - SJU

CHSSJU

Charleston

sáb. 9/27

9:05 pm-1:43 pm

2 stops16h 38m

San Juan Luis Munoz Marin Intl

sáb. 10/4

3:19 pm-5:07 pm

3 stops25h 48m

$400

CharlestonSan Juan

CHS - SJU

CHSSJU

Charleston

vie. 8/22

8:17 pm-3:10 pm

2 stops18h 53m

$107

CharlestonSan Juan

CHS - SJU

CHSSJU

Charleston

vie. 8/8

9:05 am-8:39 pm

1 stop11h 34m

$109

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

Showing 1-10 of 16 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 July 25, 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 julio 31, 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.

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 julio 31, 2025.
Read reviews from past customers who have flown Southwest, Delta, and United 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
4,246 reviews

Overall

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Southwest
8.0
Very good
4,246 reviews
Southwest
8.0
Very good
4,246 reviews

Overall

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Delta
8.0
Very good
7,981 reviews
Southwest
8.0
Very good
4,246 reviews

Overall

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
United Airlines
7.4
Good
8,900 reviews
Southwest
8.0
Very good
4,246 reviews

Overall

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
JetBlue
7.3
Good
2,914 reviews
Southwest
8.0
Very good
4,246 reviews

Overall

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,246 reviews

Overall

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

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 $218. Additional round-trip tickets that might be worth considering are offered by American Airlines and Spirit Airlines, with the lowest prices starting at $246 and $260, respectively. Frontier is currently priced 50% 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 Spirit Airlines ($107), Frontier ($109), and American Airlines ($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 julio 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$129Average$247FlexibilityNo cancel feeOn-time65%
JetBlueCheapest$195Average$381FlexibilityNo cancel feeOn-time62%
DeltaCheapest$251Average$456FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$280Average$409FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$282Average$465FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$352Average$463FlexibilityNo cancel feeOn-time63%

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