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Cheap flights from Pennsylvania to St. Augustine (UST)

PHL — UST
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Cheap flight deals from Pennsylvania to St. Augustine

Keep the following information in mind while searching for Pennsylvania to St. Augustine flight deals. Data was last updated October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Popular in

November

Cheapest in

January

Average price

$177
Provider with most accurate pricing for Philadelphia-St. Augustine Northeast Florida Regional flight deals.
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Provider most trusted by Cheapflights users for Philadelphia-St. Augustine Northeast Florida Regional flights.
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Highest demand for flights based on searches. 20% potential increase in price ($62 potential increase over avg. RT price).
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Cheapest flight prices on average. 9% potential price decrease ($21 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Cheapflights Insights

Everything you need to know about your flight from Pennsylvania to St. Augustine

What is the cheapest month to book a flight from Pennsylvania to St. Augustine?

Currently, September is the cheapest month in which you can book a flight from Pennsylvania to St. Augustine (average of $47). Flying from Pennsylvania to St. Augustine in December is currently the most expensive (average of $92). 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 PA to UST?

Find hourly flight availability from Pennsylvania 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 October 30, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 47% on flights from Pennsylvania to St. Augustine by exploring options for tickets in the evening.

What is the cheapest day to fly from Pennsylvania to St. Augustine?

Use this chart to determine the cheapest time to fly round-trip from Pennsylvania to St. Augustine. Price data was last updated on March 30, 2025.

Travelers seeking maximum savings on their Pennsylvania to St. Augustine flight should consider departing on Sunday mornings when fares are most often at their lowest. Thursday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Related info for your journey

Find useful and relevant information for your journey from Pennsylvania to St. Augustine. 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 into for flights to St. Augustine from Pennsylvania?

    St. Augustine Northeast Florida Regional (UST) is the airport you will fly into if you book a flight from Pennsylvania to St. Augustine. It is only a 4.7 mi journey from Northeast Florida Regional (UST) to St. Augustine’s city center.

  • Can I find deals for flights from Pennsylvania to St. Augustine that include hotel bookings?

    Yes. In addition to deals on Pennsylvania to St. Augustine flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Pennsylvania to St. Augustine?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Pennsylvania to St. Augustine.

  • Can I find deals for business class flights from Pennsylvania to St. Augustine?

    Yes. Cheapflights offers flight deals from Pennsylvania to St. Augustine 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 Pennsylvania to St. Augustine?

    Currently, September is the cheapest month in which you can book a flight from Pennsylvania to St. Augustine (average of $47). Flying from Pennsylvania to St. Augustine in December is currently the most expensive (average of $92). 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

Traveling to a place near St. Augustine?

Book flights to St. Augustine if you plan to visit one of these locations
Vilano Beach

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Alternative routes for Pennsylvania to St. Augustine

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Top airline flying from Pennsylvania to St. Augustine

Discover the top airline that operate flights from Pennsylvania 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$68Average$158FlexibilityNo cancel feeOn-time62%

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