Cheap Flights from Trenton (TTN) to St. Augustine (UST)

Popular airlines from Trenton–Mercer Airport (TTN) to St. Augustine, FL (UST-Northeast Florida Regional)

Black Friday Sale

Limited-time deals: Save up to 50% on select hotels.
Book now
Flights from Trenton (TTN) to St. Augustine (UST)
Origin airport
Mercer
Destination airport
Northeast Florida Regional
Distance
801 mi

Trenton to St. Augustine Flights

The cheapest times to fly from Trenton to St. Augustine

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Trenton to St. Augustine are during the month of . You can find some of the cheapest flights from Trenton to St. Augustine with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Trenton to St. Augustine

Sunday is one of the best days to book for cheap flights from Trenton to St. Augustine: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Trenton to St. Augustine

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Trenton to St. Augustine in 2025. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Trenton to St. Augustine flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Trenton to St. Augustine airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Mercer Airport (TTN) to Northeast Florida Regional Airport (UST) cost?
Snag a cheap one-way flight or cheap return flight from Mercer Airport (TTN) to Northeast Florida Regional Airport (UST) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Mercer Airport (TTN) to Northeast Florida Regional Airport (UST)?
Traveling in can help you save, as it's the cheapest month for flights between TTN and UST. You'll often find the lowest fares during off-peak months.
What is the cheapest airline that flies from Mercer Airport (TTN) to Northeast Florida Regional Airport (UST)?
To find the cheapest airline that'll fly you from TTN to UST, use Expedia's filter tool. Customize your search based on your travel needs, such as preferred carriers and ideal departure window. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Mercer Airport (TTN) to Northeast Florida Regional Airport (UST)?
There aren't any daily nonstop flights departing from Mercer Airport (TTN) to Northeast Florida Regional Airport (UST). But you can choose flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be cruising above the clouds in no time.
What day of the week has the most flights from TTN to UST?
You'll typically find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Mercer Airport (TTN) to Northeast Florida Regional Airport (UST)?
To arrive at Northeast Florida Regional Airport (UST) without delays, opt for a flight that leaves Mercer Airport (TTN) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Mercer Airport (TTN) to Northeast Florida Regional Airport (UST) last-minute?
Last-minute bookings from TTN to UST are generally more expensive. For the lowest prices, start searching for flights as early as possible. That said, if you're flexible with your travel plans, it's possible to find a cheap ticket just before your departure.
Is it cheaper to book a TTN to UST flight and hotel package?
Compared with arranging flights and hotels separately, booking a TTN to UST flight and hotel package with Expedia could lead to significant savings. Better yet, managing everything in one place takes the hassle out of travel planning. Just pick your flights and select from our wide range of stays, then tailor your trip with other add-ons like tours, activities and car rentals.
Can I cancel or change the date of my flight from Mercer Airport (TTN) to Northeast Florida Regional Airport (UST)?
If you booked your TTN to UST flight in the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the ticket type you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal for more details.

Explore a world of travel with Expedia

*Available to One Key members.