Enjoy free snacks and non-alcoholic drinks, plus a free drink on special occasions.
Southwest offers two free checked bags, including oversized items like skis or golf clubs.
Cheap flights from Philadelphia to St. Augustine (PHL - UST)
PHL — UST
Mar 4 — Mar 111
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Philadelphia to St. Augustine 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.Cheap flight deals from Philadelphia to St. Augustine
Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) to St. Augustine (UST). 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 February 27, 2025.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Popular in | March |
Cheapest in | August |
Average price | $231 |
Compare providers for flights from Philadelphia to St. Augustine
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Philadelphia to St. Augustine in February.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Philadelphia-St. Augustine flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Philadelphia-St. Augustine flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Philadelphia-St. Augustine flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Philadelphia-St. Augustine flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Philadelphia-St. Augustine flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
The best insider tips for Philadelphia to St. Augustine flights
Find out what our experts recommend to make the most of your Philadelphia to St. Augustine trip
Airlines
![Southwest]()
Southwest
![Spirit Airlines]()
Spirit Airlines
Spirit's Big Front Seats offer 11 inches more legroom and larger tray tables for laptops.
Spirit's Saver$ Club offers rotating deals and discounts on luggage and seats.
Our travel experts
Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Best time to book a flight from Philadelphia to St. Augustine
Have a flexible travel schedule? Discover the best time to fly to St. Augustine from Philadelphia 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.
Travel insights for flights from Philadelphia to St. Augustine
Get recent, data-driven insights about flights from Philadelphia to St. Augustine including ideal travel times, pricing trends, and more.
What is the cheapest time of day to fly from PHL to UST?
Find hourly flight availability from Philadelphia to St. Augustine. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 27, 2025.
Unlike in the afternoon, when flights are generally more expensive, you can save up to 93% on flights from Philadelphia to St. Augustine by exploring options for tickets at noon.
What is the cheapest day to fly from Philadelphia to St. Augustine?
Use this chart to determine the cheapest time to fly round-trip from Philadelphia to St. Augustine. Price data was last updated on February 23, 2025.
Travelers seeking maximum savings on their Philadelphia to St. Augustine flight should consider departing on Monday at noon 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.
Rainfall in St. Augustine by month
Plan your trip to St. Augustine by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in St. Augustine ranges from 2.0 - 6.7 inches per month. September is typically the wettest month, when rainfall can reach 6.7 in. November is typically the driest time to visit St. Augustine when rainfall is around 2.0 in.
Temperature in St. Augustine by month
Plan your trip to St. Augustine by taking into account the average temperature totals by month.
If weather is an important factor for your trip to St. Augustine, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 57.2 F).
Related info for your journey
Find useful and relevant information for your journey from Philadelphia to St. Augustine. 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 Philadelphia?
Book flights to Philadelphia if you plan to visit one of these locationsVilano Beach
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 Philadelphia to St. Augustine
See prices for flight routes from nearby airports that may be better suited for you.
Top airline flying from Philadelphia to St. Augustine
Discover the top airline that operate flights from Philadelphia to St. Augustine. 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 February 27, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$68 | Average$174 | FlexibilityNo cancel fee | On-time62% |