Cheap flights from Harlingen, TX to St. Augustine (HRL - UST)
HRL — UST
ene. 2 — ene. 91
1 adult, Economy
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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
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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 Harlingen to St. Augustine
Discover tips and strategies to find the most affordable flight options for your journey from Harlingen (HRL) 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 diciembre 3, 2025.
Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
- Most accurate provider: When it comes to deals on Harlingen, Texas-St. Augustine flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Harlingen, Texas-St. Augustine flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Harlingen, Texas-St. Augustine flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Harlingen, Texas-St. Augustine flights, Cheapflights users trust eDreams the most. eDreams 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 Harlingen, Texas-St. Augustine 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 Harlingen to St. Augustine
Have a flexible travel schedule? Discover the best time to fly to St. Augustine from Harlingen 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 Harlingen to St. Augustine
What is the cheapest month to book a flight from Harlingen, Texas to St. Augustine?
Currently, May is the cheapest month in which you can book a flight from Harlingen, Texas to St. Augustine (average of $81). Flying from Harlingen, Texas to St. Augustine in October is currently the most expensive (average of $217). 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 HRL to UST?
Find hourly flight availability from Harlingen 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 diciembre 3, 2025.
Unlike in the evening, when flights are generally more expensive, you can save up to 52% on flights from Harlingen, Texas to St. Augustine by exploring options for tickets at noon.