Cheap Flights from Charleston (CHS) to Posadas (PSS)

Popular airlines from Charleston Intl. Airport (CHS) to Posadas (PSS-Libertador General Jose de San Martin)

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 30% on select hotels after you book a flight*
  • one key icon

    Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Frequently asked questions

How much does a flight from Charleston Intl. Airport (CHS) to Libertador General Jose de San Martin Airport (PSS) cost?
Secure a cheap one-way flight or cheap return flight from Charleston Intl. Airport (CHS) to Libertador General Jose de San Martin Airport (PSS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Charleston Intl. Airport (CHS) to Libertador General Jose de San Martin Airport (PSS)?
The cheapest month to fly from CHS to PSS is , when there's less demand. Off-peak months are usually when airlines offer better prices between these airports.
What is the cheapest airline that flies from Charleston Intl. Airport (CHS) to Libertador General Jose de San Martin Airport (PSS)?
Use the filters on Expedia to compare airlines and find the most affordable carrier that'll fly you from CHS to PSS. Then, sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Charleston Intl. Airport (CHS) to Libertador General Jose de San Martin Airport (PSS)?
There aren't any daily nonstop flights available from Charleston Intl. Airport (CHS) to Libertador General Jose de San Martin Airport (PSS). But you can opt for flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be cruising above the clouds before you know it.
What day of the week has the most flights from CHS to PSS?
Friday is generally the busiest day for flights, while Tuesday tends to be the quietest.* Just remember that flight schedules can change based on a range of factors, such as the time of year and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Charleston Intl. Airport (CHS) to Libertador General Jose de San Martin Airport (PSS)?
To avoid possible delays on the Charleston Intl. Airport (CHS) to Libertador General Jose de San Martin Airport (PSS) route, aim to travel before 3 PM. Later flights are 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Charleston Intl. Airport (CHS) to Libertador General Jose de San Martin Airport (PSS) last-minute?
Booking your ticket from CHS to PSS shortly before your getaway is generally more expensive. However, if you're flexible with your itinerary, you could grab a cheap last-minute fare.
Is it cheaper to book a CHS to PSS flight and hotel package?
Opting for a CHS to PSS flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of hotels and then add activities, flights and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Charleston Intl. Airport (CHS) to Libertador General Jose de San Martin Airport (PSS)?
In most instances, you can reschedule or cancel your CHS to PSS flight. However, additional charges may apply, especially if you booked over 24 hours ago. Check your itinerary for the airline's policies and fees on flight changes, or if you'd like further information, go to our Customer Service portal.

Travel information

Travel information

Origin airport
Charleston Intl.
Destination airport
Libertador General Jose de San Martin
Distance
4454 mi

Book with confidence

Book with confidence

Charleston to Posadas Flights

The cheapest times to fly from Charleston to Posadas

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Charleston to Posadas are during the month of . You can find some of the cheapest flights from Charleston to Posadas with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Charleston to Posadas

Sunday is one of the best days to book for cheap flights from Charleston to Posadas: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Charleston to Posadas

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Charleston to Posadas in 2025. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Charleston to Posadas flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Charleston to Posadas airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Charleston to Posadas Flights

Explore a world of travel with Expedia

Explore a world of travel with Expedia

*Available to One Key members.