Cheap flights from St. Augustine to Charleston (UST - CHS)
UST — CHS
Feb 28 — Mar 71
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from St. Augustine to Charleston 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.Find flight deals from St. Augustine to Charleston
Discover tips and strategies to find the most affordable flight options for your journey from St. Augustine (UST) to Charleston (CHS). 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 January 29, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
- Most accurate provider: When it comes to deals on St. Augustine-Charleston flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Augustine-Charleston flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Augustine-Charleston flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on St. Augustine-Charleston flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Augustine-Charleston flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from St. Augustine to Charleston
Have a flexible travel schedule? Discover the best time to fly to Charleston from St. Augustine 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 St. Augustine to Charleston
What is the cheapest month to book a flight from St. Augustine to Charleston?
Currently, February is the cheapest month in which you can book a flight from St. Augustine to Charleston (average of $41). Flying from St. Augustine to Charleston in December is currently the most expensive (average of $116). 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 UST to CHS?
Find hourly flight availability from St. Augustine to Charleston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 29, 2026.
It’s optimal to fly from St. Augustine to Charleston in the evening. By choosing this option you can save up to 31% on the cost of your flight, compared to a flight at noon.
Related info for your journey
Find useful and relevant information for your journey from St. Augustine to Charleston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Charleston?
Book flights to Charleston if you plan to visit one of these locationsNorth Charleston
Santee
Summerville
Walterboro
Isle of Palms
Mount Pleasant
Edisto Beach