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San Juan

$137+ 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 5/18. Fares are subject to change and may not be available on all flights or dates of travel.
CHS — SJU
Apr 27 — May 41
Sun 4/27
Sun 5/4
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 24 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 April 22, 2025.

Round-trip from

$240
(Cheapflightsfares)

One-way from

$137
(Cheapflightsfares)

Popular in

December

Cheapest in

September

Average price

$457
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. 16% potential increase in price ($83 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($25 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 22, 2025.

This Priceline deal was found by Cheapflights users on 4/21. 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 5/54:51 pmCHS - SJU
1 stop7h 01mSpirit Airlines
Fri 5/98:12 pmSJU - CHS
1 stop12h 26mSpirit Airlines
Deal found 4/21$230
This Delta deal was found by Cheapflights users on 4/22. 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.
Fri 10/245:30 amCHS - SJU
1 stop6h 17mDelta
Mon 10/272:28 pmSJU - CHS
1 stop7h 36mDelta
Deal found 4/22$241
This Priceline deal was found by Cheapflights users on 4/21. 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 5/309:05 amCHS - SJU
1 stop11h 16mMultiple Airlines
Fri 6/68:12 pmSJU - CHS
1 stop12h 26mMultiple Airlines
Deal found 4/21$275
This American Airlines deal was found by Cheapflights users on 4/21. 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.
Tue 9/27:20 amCHS - SJU
1 stop7h 25mAmerican Airlines
Wed 9/248:30 amSJU - CHS
2 stops10h 35mAmerican Airlines
Deal found 4/21$277
This CheapOair deal was found by Cheapflights users on 4/22. 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.
Fri 5/210:01 amCHS - SJU
1 stop15h 49mFrontier
Sun 5/49:58 pmSJU - CHS
1 stop11h 11mFrontier
Deal found 4/22$299
This JetBlue deal was found by Cheapflights users on 4/22. 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.
Tue 9/29:30 amCHS - SJU
1 stop6h 32mJetBlue
Tue 9/233:15 amSJU - CHS
1 stop7h 25mJetBlue
Deal found 4/22$319
This Southwest deal was found by Cheapflights users on 4/21. 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.
Tue 5/1311:25 amCHS - SJU
1 stop11h 05mSouthwest
Tue 5/206:05 amSJU - CHS
2 stops11h 15mSouthwest
Deal found 4/21$326
This United Airlines deal was found by Cheapflights users on 4/22. 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.
Wed 5/77:00 amCHS - SJU
1 stop8h 40mUnited Airlines
Tue 5/131:05 amSJU - CHS
1 stop7h 46mUnited Airlines
Deal found 4/22$403

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 April 22, 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

Mon 5/5

4:51 pm-11:52 pm

1 stop7h 01m

San Juan Luis Munoz Marin Intl

Fri 5/9

8:12 pm-8:38 am

1 stop12h 26m

$230

CharlestonSan Juan

CHS - SJU

CHSSJU

Charleston

Fri 5/30

9:05 am-8:21 pm

1 stop11h 16m

San Juan Luis Munoz Marin Intl

Fri 6/6

8:12 pm-8:38 am

1 stop12h 26m

$275

CharlestonSan Juan

CHS - SJU

CHSSJU

Charleston

Fri 5/2

10:01 am-1:50 am

1 stop15h 49m

San Juan Luis Munoz Marin Intl

Sun 5/4

9:58 pm-9:09 am

1 stop11h 11m

$299

CharlestonSan Juan

CHS - SJU

CHSSJU

Charleston

Tue 5/13

11:25 am-10:30 pm

1 stop11h 05m

San Juan Luis Munoz Marin Intl

Tue 5/20

6:05 am-5:20 pm

2 stops11h 15m

$326

CharlestonSan Juan

CHS - SJU

CHSSJU

Charleston

Wed 5/7

10:57 am-6:58 pm

1 stop8h 01m

San Juan Luis Munoz Marin Intl

Wed 5/14

7:01 am-6:01 pm

1 stop11h 00m

$328

CharlestonSan Juan

CHS - SJU

CHSSJU

Charleston

Fri 5/30

5:07 am-2:40 pm

2 stops9h 33m

San Juan Luis Munoz Marin Intl

Fri 6/6

6:55 pm-9:46 am

1 stop14h 51m

$344

CharlestonSan Juan

CHS - SJU

CHSSJU

Charleston

Tue 7/1

7:25 am-4:38 pm

1 stop9h 13m

San Juan Luis Munoz Marin Intl

Sat 7/12

7:30 am-3:42 pm

1 stop8h 12m

$377

CharlestonSan Juan

CHS - SJU

CHSSJU

Charleston

Wed 5/7

7:00 am-3:40 pm

1 stop8h 40m

San Juan Luis Munoz Marin Intl

Tue 5/13

1:05 am-8:51 am

1 stop7h 46m

$403

CharlestonSan Juan

CHS - SJU

CHSSJU

Charleston

Sun 5/18

9:43 am-7:07 pm

1 stop9h 24m

$137

CharlestonSan Juan

CHS - SJU

CHSSJU

Charleston

Fri 6/13

6:59 pm-2:21 am

1 stop7h 22m

$157

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/21

Showing 1-10 of 15 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 April 18, 2025.

The best time to book flights from Charleston to San Juan is 24 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 December is currently the most expensive (average of $336). 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 April 22, 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 April 21, 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 April 22, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest and Delta 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.
Alaska Airlines
8.0
Very good
9,906 reviews

Entertainment

7.1

Crew

8.5

Food

7.1

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Alaska Airlines
8.0
Very good
9,906 reviews
Alaska Airlines
8.0
Very good
9,906 reviews

Entertainment

7.1

Crew

8.5

Food

7.1

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Southwest
8.0
Very good
4,287 reviews
Alaska Airlines
8.0
Very good
9,906 reviews

Entertainment

7.1

Crew

8.5

Food

7.1

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Delta
8.0
Very good
7,920 reviews
Alaska Airlines
8.0
Very good
9,906 reviews

Entertainment

7.1

Crew

8.5

Food

7.1

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
United Airlines
7.4
Good
8,683 reviews
Alaska Airlines
8.0
Very good
9,906 reviews

Entertainment

7.1

Crew

8.5

Food

7.1

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
JetBlue
7.3
Good
2,923 reviews
Alaska Airlines
8.0
Very good
9,906 reviews

Entertainment

7.1

Crew

8.5

Food

7.1

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

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 Spirit Airlines is currently your cheapest option to San Juan, with prices starting at $240. Additional round-trip tickets that might be worth considering are offered by Delta and Frontier, with the lowest prices starting at $277 and $299, respectively. Spirit Airlines is currently priced 42% 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 ($137), JetBlue ($157), and Southwest ($187).

  • 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 December is currently the most expensive (average of $336). 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 April 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$145Average$232FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$231Average$421FlexibilityNo cancel feeOn-time69%
JetBlueCheapest$242Average$375FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$279Average$457FlexibilityNo cancel feeOn-time71%
DeltaCheapest$313Average$455FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$342Average$470FlexibilityNo cancel feeOn-time63%

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