HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San Juan

$99+ 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 4/8. Fares are subject to change and may not be available on all flights or dates of travel.
CHS — SJU
Apr 5 — Apr 121
Sat 4/5
Sat 4/12
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Charleston to San Juan with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 March 31, 2025.

Round-trip from

$208
(Mytrip)

One-way from

$99
(Cheapflightsfares)

Popular in

December

Cheapest in

September

Average price

$410
From Charleston to San Juan
Search Deals
One-way flight from Charleston to San Juan
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($75 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($24 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2025
Search Deals

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 March 31, 2025.

This Mytrip deal was found by Cheapflights users on 3/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/64:51 pmCHS - SJU
1 stop7h 01mSpirit Airlines
Fri 5/1612:36 pmSJU - CHS
2 stops20h 02mSpirit Airlines
Deal found 3/30$208
This American Airlines deal was found by Cheapflights users on 3/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/66:34 amCHS - SJU
1 stop13h 59mAmerican Airlines
Thu 5/157:15 amSJU - CHS
1 stop17h 00mAmerican Airlines
Deal found 3/30$277
This FlightHub deal was found by Cheapflights users on 3/30. 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.
Fri 5/309:05 amCHS - SJU
1 stop14h 49mMultiple Airlines
Fri 6/68:12 pmSJU - CHS
1 stop12h 26mMultiple Airlines
Deal found 3/30$296
This Frontier deal was found by Cheapflights users on 3/30. 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.
Fri 5/309:05 amCHS - SJU
1 stop11h 16mFrontier
Sun 6/112:59 amSJU - CHS
1 stop7h 01mFrontier
Deal found 3/30$316
This Delta deal was found by Cheapflights users on 3/30. 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.
Sat 5/104:59 pmCHS - SJU
1 stop5h 50mDelta
Mon 5/197:30 amSJU - CHS
1 stop6h 03mDelta
Deal found 3/30$372
This JetBlue deal was found by Cheapflights users on 3/31. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/165:24 pmCHS - SJU
1 stop8h 12mJetBlue
Sat 4/2612:58 amSJU - CHS
1 stop10h 47mJetBlue
Deal found 3/31$410
This United deal was found by Cheapflights users on 3/31. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/76:00 amCHS - SJU
1 stop6h 34mUnited Airlines
Tue 5/131:05 amSJU - CHS
1 stop7h 46mUnited Airlines
Deal found 3/31$416
This Southwest deal was found by Cheapflights users on 3/30. 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.
Wed 6/117:15 amCHS - SJU
2 stops8h 50mSouthwest
Mon 6/166:30 amSJU - CHS
2 stops10h 10mSouthwest
Deal found 3/30$453

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 March 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

Tue 5/6

4:51 pm-11:52 pm

1 stop7h 01m

San Juan Luis Munoz Marin Intl

Fri 5/16

12:36 pm-8:38 am

2 stops20h 02m

$208

CharlestonSan Juan

CHS - SJU

CHSSJU

Charleston

Tue 5/6

6:34 am-8:33 pm

1 stop13h 59m

San Juan Luis Munoz Marin Intl

Thu 5/15

7:15 am-12:15 am

1 stop17h 00m

$277

CharlestonSan Juan

CHS - SJU

CHSSJU

Charleston

Fri 5/30

9:05 am-11:54 pm

1 stop14h 49m

San Juan Luis Munoz Marin Intl

Fri 6/6

8:12 pm-8:38 am

1 stop12h 26m

$296

CharlestonSan Juan

CHS - SJU

CHSSJU

Charleston

Fri 5/30

9:05 am-8:21 pm

1 stop11h 16m

San Juan Luis Munoz Marin Intl

Sun 6/1

12:59 am-8:00 am

1 stop7h 01m

$316

CharlestonSan Juan

CHS - SJU

CHSSJU

Charleston

Sat 5/10

4:59 pm-10:49 pm

1 stop5h 50m

San Juan Luis Munoz Marin Intl

Mon 5/19

7:30 am-1:33 pm

1 stop6h 03m

$372

CharlestonSan Juan

CHS - SJU

CHSSJU

Charleston

Wed 4/16

5:24 pm-1:36 am

1 stop8h 12m

San Juan Luis Munoz Marin Intl

Sat 4/26

12:58 am-11:45 am

1 stop10h 47m

$410

CharlestonSan Juan

CHS - SJU

CHSSJU

Charleston

Wed 5/7

6:00 am-12:34 pm

1 stop6h 34m

San Juan Luis Munoz Marin Intl

Tue 5/13

1:05 am-8:51 am

1 stop7h 46m

$416

CharlestonSan Juan

CHS - SJU

CHSSJU

Charleston

Wed 6/11

7:15 am-4:05 pm

2 stops8h 50m

San Juan Luis Munoz Marin Intl

Mon 6/16

6:30 am-4:40 pm

2 stops10h 10m

$453

CharlestonSan Juan

CHS - SJU

CHSSJU

Charleston

Tue 4/8

11:02 am-4:34 pm

1 stop5h 32m

$99

CharlestonSan Juan

CHS - SJU

CHSSJU

Charleston

Wed 4/23

5:24 pm-1:55 am

1 stop8h 31m

$156

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/30

Showing 1-10 of 13 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 March 28, 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 March 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 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 March 31, 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
9,818 reviews

Boarding

8.2

Overall

8.0

Food

7.1

Crew

8.5

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
9,818 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Boarding

8.2

Overall

8.0

Food

7.1

Crew

8.5

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Southwest
8.0
Very good
4,276 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Boarding

8.2

Overall

8.0

Food

7.1

Crew

8.5

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,899 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Boarding

8.2

Overall

8.0

Food

7.1

Crew

8.5

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,614 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Boarding

8.2

Overall

8.0

Food

7.1

Crew

8.5

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
JetBlue
7.3
Good
2,924 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Boarding

8.2

Overall

8.0

Food

7.1

Crew

8.5

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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 $208. Additional round-trip tickets that might be worth considering are offered by American Airlines and Frontier, with the lowest prices starting at $277 and $316, respectively. Spirit Airlines is currently priced 51% 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 ($99), JetBlue ($156), and American Airlines ($193).

  • 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Charleston to San Juan

See prices for flight routes from nearby airports that may be better suited for you.
Charlotte to Luis Munoz Marin Intl flights
Charleston to Luis Munoz Marin Intl flights
Savannah to Luis Munoz Marin Intl flights
Greenville to Luis Munoz Marin Intl flights
Myrtle Beach to Luis Munoz Marin Intl flights
Columbia to Luis Munoz Marin Intl flights
Charlotte to Ponce flights
Hilton Head Island to Luis Munoz Marin Intl flights
Augusta to Luis Munoz Marin Intl flights
Florence to Luis Munoz Marin Intl flights
Charlotte to Culebra flights
Charlotte to Aguadilla flights
Charlotte to Vieques flights
Charleston to Aguadilla flights
Savannah to Aguadilla flights
Charlotte to Mayagüez flights
Greenville to Aguadilla flights
Charleston to Culebra flights
Myrtle Beach to Aguadilla flights
Myrtle Beach to Mayagüez flights

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 March 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$149Average$233FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$231Average$462FlexibilityNo cancel feeOn-time69%
JetBlueCheapest$242Average$377FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$279Average$457FlexibilityNo cancel feeOn-time71%
DeltaCheapest$314Average$461FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$342Average$464FlexibilityNo cancel feeOn-time63%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.