$102+ 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 1/1. Fares are subject to change and may not be available on all flights or dates of travel.
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 January 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
Cheapest flights from Charleston to San JuanExplore 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 December 18, 2025.
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 December 18, 2025.
This Kiwi.com deal was found by Cheapflights users on 12/15. 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.
This Kiwi.com deal was found by Cheapflights users on 12/16. 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.
This Kiwi.com deal was found by Cheapflights users on 12/16. 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.
This Expedia deal was found by Cheapflights users on 12/16. 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.
This Kiwi.com deal was found by Cheapflights users on 12/16. 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.
This JetBlue deal was found by Cheapflights users on 12/16. 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.
This Kiwi.com deal was found by Cheapflights users on 12/16. 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.
This JetBlue deal was found by Cheapflights users on 12/16. 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.
This American Airlines deal was found by Cheapflights users on 12/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Kiwi.com deal was found by Cheapflights users on 12/16. 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.
Find 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 December 18, 2025.
Round-trip from | $283 (United Airlines) |
|---|---|
One-way from | $102 (Frontier) |
Popular in | August |
Cheapest in | January |
Average price | $554 |
Cheapflights Fare Finder
Use the filters below to find and compare flights from Charleston to San Juan that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
CharlestonSan Juan
CHS - SJU
CHSSJU
Charleston
Mon 1/5
10:18 pm-11:44 pm
1 stop24h 26m
San Juan Luis Munoz Marin Intl
Sun 1/11
9:00 am-5:36 pm
2 stops33h 36m
CharlestonSan Juan
CHS - SJU
CHSSJU
Charleston
Fri 1/30
10:10 am-7:26 pm
1 stop8h 16m
San Juan Luis Munoz Marin Intl
Sat 1/31
6:01 am-12:40 pm
1 stop7h 39m
CharlestonSan Juan
CHS - SJU
CHSSJU
Charleston
Fri 2/13
9:20 am-9:31 pm
1 stop11h 11m
San Juan Luis Munoz Marin Intl
Tue 2/17
6:00 am-8:30 am
1 stop27h 30m
CharlestonSan Juan
CHS - SJU
CHSSJU
Charleston
Wed 1/28
6:30 am-4:36 pm
1 stop9h 06m
San Juan Luis Munoz Marin Intl
Fri 1/30
2:05 am-11:40 am
1 stop10h 35m
CharlestonSan Juan
CHS - SJU
CHSSJU
Charleston
Fri 2/20
11:47 am-2:28 am
1 stop13h 41m
San Juan Luis Munoz Marin Intl
Sat 2/28
6:00 am-1:01 pm
1 stop8h 01m
CharlestonSan Juan
CHS - SJU
CHSSJU
Charleston
Tue 12/30
7:03 pm-12:56 am
1 stop4h 53m
San Juan Luis Munoz Marin Intl
Fri 1/30
6:01 am-12:40 pm
1 stop7h 39m
CharlestonSan Juan
CHS - SJU
CHSSJU
Charleston
Wed 1/28
5:25 am-1:06 pm
1 stop6h 41m
San Juan Luis Munoz Marin Intl
Mon 2/2
6:27 pm-11:55 pm
1 stop6h 28m
CharlestonSan Juan
CHS - SJU
CHSSJU
Charleston
Sun 1/11
5:18 pm-11:45 pm
1 stop5h 27m
San Juan Luis Munoz Marin Intl
Tue 1/13
6:27 pm-11:55 pm
1 stop6h 28m
CharlestonSan Juan
CHS - SJU
CHSSJU
Charleston
Thu 2/5
1:35 pm-8:02 pm
1 stop5h 27m
San Juan Luis Munoz Marin Intl
Sun 2/8
6:00 am-10:45 am
1 stop5h 45m
CharlestonSan Juan
CHS - SJU
CHSSJU
Charleston
Wed 12/31
7:03 pm-12:56 am
1 stop4h 53m
San Juan Luis Munoz Marin Intl
Sat 1/31
6:01 am-12:40 pm
1 stop7h 39m
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.
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 December 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, June is the cheapest month in which you can book a flight from Charleston to San Juan (average of $152). Flying from Charleston to San Juan in December is currently the most expensive (average of $323). 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 December 18, 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 45% 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 Tuesday evenings when fares are most often at their lowest. Sunday 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 December 18, 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.
Crew
Boarding
Food
Overall
Entertainment
Comfort
Reviews
Thomas,Dec 2025
SEA - DEN
Crew
Boarding
Food
Overall
Entertainment
Comfort
Reviews
Thomas,Dec 2025
SEA - DEN
Crew
Boarding
Food
Overall
Entertainment
Comfort
Reviews
Thomas,Dec 2025
SEA - DEN
Crew
Boarding
Food
Overall
Entertainment
Comfort
Reviews
Thomas,Dec 2025
SEA - DEN
Crew
Boarding
Food
Overall
Entertainment
Comfort
Reviews
Thomas,Dec 2025
SEA - DEN
Crew
Boarding
Food
Overall
Entertainment
Comfort
Reviews
Thomas,Dec 2025
SEA - DEN
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.
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Alternative routes for Charleston to San Juan
See prices for flight routes from nearby airports that may be better suited for you.
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 December 18, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$129 | Average$248 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$192 | Average$373 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$241 | Average$440 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$271 | Average$409 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$290 | Average$483 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$371 | Average$518 | FlexibilityNo cancel fee | On-time63% |