$122 Cheap Flights from San Antonio (SAT) to Trenton (TTN)

View $122 flight on Sat, Nov 1, 2025Opens in a new window

Popular airlines from San Antonio International Airport (SAT) to Trenton–Mercer Airport (TTN)

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Cheap Flights from San Antonio to Trenton (SAT-TTN)

Prices were available within the past 7 days and start at $122 for one-way flights and $180 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Thu, Dec 4 - Sat, Dec 6
SAT
San Antonio
TTN
Trenton
$180 Roundtrip, found 2 hours ago
$180
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Thu, Dec 4 from San Antonio to Trenton, returning Sat, Dec 6, priced at $180 found 2 hours ago
Frontier Airlines
Thu, Nov 20 - Sun, Nov 23
SAT
San Antonio
TTN
Trenton
$322 Roundtrip, found 2 days ago
$322
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Thu, Nov 20 from San Antonio to Trenton, returning Sun, Nov 23, priced at $322 found 2 days ago
Frontier Airlines
Fri, Oct 24 - Mon, Oct 27
SAT
San Antonio
TTN
Trenton
$329 Roundtrip, found 5 days ago
$329
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Fri, Oct 24 from San Antonio to Trenton, returning Mon, Oct 27, priced at $329 found 5 days ago
American Airlines
Tue, Oct 28 - Sat, Nov 1
SAT
San Antonio
TTN
Trenton
$335 Roundtrip, found 3 days ago
$335
Roundtrip
found 3 days ago
Select American Airlines flight, departing Tue, Oct 28 from San Antonio to Trenton, returning Sat, Nov 1, priced at $335 found 3 days ago
Frontier Airlines
Thu, Nov 20 - Sat, Nov 22
SAT
San Antonio
TTN
Trenton
$352 Roundtrip, found 2 days ago
$352
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Thu, Nov 20 from San Antonio to Trenton, returning Sat, Nov 22, priced at $352 found 2 days ago
Frontier Airlines
Fri, Oct 24 - Sat, Nov 8
SAT
San Antonio
TTN
Trenton
$359 Roundtrip, found 5 days ago
$359
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Fri, Oct 24 from San Antonio to Trenton, returning Sat, Nov 8, priced at $359 found 5 days ago
American Airlines
Wed, Dec 3 - Sat, Dec 6
SAT
San Antonio
TTN
Trenton
$360 Roundtrip, found 2 hours ago
$360
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Wed, Dec 3 from San Antonio to Trenton, returning Sat, Dec 6, priced at $360 found 2 hours ago
American Airlines
Wed, Dec 3 - Sat, Dec 6
SAT
San Antonio
TTN
Trenton
$366 Roundtrip, found 2 hours ago
$366
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Wed, Dec 3 from San Antonio to Trenton, returning Sat, Dec 6, priced at $366 found 2 hours ago
Frontier Airlines
Fri, Oct 24 - Sun, Oct 26
SAT
San Antonio
TTN
Trenton
$366 Roundtrip, found 5 days ago
$366
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Fri, Oct 24 from San Antonio to Trenton, returning Sun, Oct 26, priced at $366 found 5 days ago
Frontier Airlines
Sat, Nov 1 - Sat, Nov 8
SAT
San Antonio
TTN
Trenton
$372 Roundtrip, found 6 days ago
$372
Roundtrip
found 6 days ago
Select Frontier Airlines flight, departing Sat, Nov 1 from San Antonio to Trenton, returning Sat, Nov 8, priced at $372 found 6 days ago

Frequently asked questions

How much does a flight from San Antonio Intl. Airport (SAT) to Mercer Airport (TTN) cost?
Lock in a cheap one-way flight from $122 or cheap return flight from $180 from San Antonio Intl. Airport (SAT) to Mercer Airport (TTN) 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 San Antonio Intl. Airport (SAT) to Mercer Airport (TTN)?
December is the most affordable month to fly from SAT to TTN. Traveling during quieter months is often the key to finding better deals on flights.
What is the cheapest airline that flies from San Antonio Intl. Airport (SAT) to Mercer Airport (TTN)?
Expedia's filter tool lets you easily compare travel time, airlines and fares all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest SAT to TTN flight.
How many flights per day from San Antonio Intl. Airport (SAT) to Mercer Airport (TTN)?
Nonstop flights from San Antonio Intl. Airport (SAT) to Mercer Airport (TTN) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel dates and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from SAT to TTN?
You'll generally find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from San Antonio Intl. Airport (SAT) to Mercer Airport (TTN)?
To land at Mercer Airport (TTN) without delays, opt for a flight that leaves San Antonio Intl. Airport (SAT) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**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.
What airports do you fly into for Trenton from San Antonio Intl. Airport (SAT)?
If you're flying on a direct flight from San Antonio Intl. Airport (SAT) to Trenton, Liberty Intl. Airport (EWR) is the only airport you can land at.
Is it cheaper to buy a plane ticket from San Antonio Intl. Airport (SAT) to Mercer Airport (TTN) last-minute?
Waiting until right before your break to book a ticket from SAT to TTN often results in higher prices. While you may find some last-minute deals, they aren't always guaranteed. Be flexible with your itinerary to maximize your chances of snagging a bargain.
Is it cheaper to book a SAT to TTN flight and hotel package?
Compared with arranging hotels and flights separately, booking a SAT to TTN flight and hotel package with Expedia could lead to significant savings. What's more, having it all in one place takes the hassle out of travel planning. Simply secure your flights and select from our wide range of stays, then customize your trip with extras like tours, activities and car rentals.
Can I cancel or change the date of my flight from San Antonio Intl. Airport (SAT) to Mercer Airport (TTN)?
It's usually possible to reschedule or cancel your SAT to TTN flight. However, if the booking was made more than 24 hours ago, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find more details on our Customer Service portal.

Travel information

Origin airport
San Antonio Intl.
Destination airport
Mercer
Airlines serving
American Airlines
Roundtrip price
$180
Distance
1525 mi

Book with confidence

San Antonio to Trenton Flights

The cheapest times to fly from San Antonio to Trenton

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 San Antonio to Trenton are during the month of December. You can find some of the cheapest flights from San Antonio to Trenton with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from San Antonio to Trenton

Sunday is one of the best days to book for cheap flights from San Antonio to Trenton: 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 San Antonio to Trenton

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 San Antonio to Trenton in 2025. You can also book with separate airlines for your outbound and return journeys, from $122 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 San Antonio to Trenton 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 San Antonio to Trenton 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.

 

San Antonio to Trenton Flights

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*Available to One Key members.