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St. Augustine

Cheap flights from Boston to St. Augustine (BOS - UST)

BOS — UST
Dec 3 — Dec 101
Wed 12/3
Wed 12/10
1 adult, Economy
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Cheap flight deals from Boston to St. Augustine

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) 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 November 3, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Popular in

July

Cheapest in

December

Average price

$297
Provider with most accurate pricing for Boston Logan Intl-St. Augustine Northeast Florida Regional flight deals.
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Provider most trusted by Cheapflights users for Boston Logan Intl-St. Augustine Northeast Florida Regional flights.
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Highest demand for flights based on searches. 20% potential increase in price ($82 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($21 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Compare providers for flights from Boston 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 Boston to St. Augustine in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Boston-St. Augustine flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Boston-St. Augustine flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Boston-St. Augustine flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boston-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 Boston-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 Boston to St. Augustine

Have a flexible travel schedule? Discover the best time to fly to St. Augustine from Boston 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 Boston to St. Augustine

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

Currently, March is the cheapest month in which you can book a flight from Boston to St. Augustine (average of $55). Flying from Boston to St. Augustine in June is currently the most expensive (average of $102). 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 BOS to UST?

Find hourly flight availability from Boston 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 November 3, 2025.

A simple way to save on the total cost of your ticket is to fly from Boston to St. Augustine in the afternoon. If you’re flexible enough to do this you can expect to save up to 44% on your trip compared to booking a flight at noon.

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

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

Travelers seeking maximum savings on their Boston to St. Augustine flight should consider departing on Tuesday afternoons 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.

Reviews of airlines servicing St. Augustine

Get insights into the airlines that provide service to St. Augustine. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Augustine. Reviews last updated November 3, 2025.
Peruse reviews from past customers who have flown with JetBlue from Boston to St. Augustine to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
JetBlue
7.2
Good
2,907 reviews

Overall

7.2

Boarding

7.4

Entertainment

7.3

Crew

8.0

Food

6.7

Comfort

7.6

Reviews

1 / 20
2.0
Mediocre

Jason,Aug 2025

JFK - PBI

Horrible horrible they didn't delay flight time for refueling and pilot who timed out on tarmac. Horrible horrible operations
JetBlue
7.2
Good
2,907 reviews
JetBlue
7.2
Good
2,907 reviews

Overall

7.2

Boarding

7.4

Entertainment

7.3

Crew

8.0

Food

6.7

Comfort

7.6

Reviews

1 / 20
2.0
Mediocre

Jason,Aug 2025

JFK - PBI

Horrible horrible they didn't delay flight time for refueling and pilot who timed out on tarmac. Horrible horrible operations

Related info for your journey

Find useful and relevant information for your journey from Boston 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 is the cheapest airline to fly from Boston to St. Augustine round-trip?

    According to our current data, JetBlue ($157), offers the cheapest pricing from Boston to St. Augustine. Users have found that JetBlue is 49% cheaper than the other options available to this destination.

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

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

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

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

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

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

    Currently, March is the cheapest month in which you can book a flight from Boston to St. Augustine (average of $55). Flying from Boston to St. Augustine in June is currently the most expensive (average of $102). 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.

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Top airline flying from Boston to St. Augustine

Discover the top airline that operate flights from Boston 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 November 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$157Average$247FlexibilityNo cancel feeOn-time62%

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