$87 Cheap Flights from Trenton (TTN) to Austin (AUS)

View $87 flight on Thu, Oct 2, 2025Opens in a new window

Popular airlines from Trenton–Mercer Airport (TTN) to Austin-Bergstrom Intl. Airport (AUS)

Cheap Flights from Trenton to Austin (TTN-AUS)

Prices were available within the past 7 days and start at $87 for one-way flights and $164 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Sat, Oct 25 - Sun, Nov 2
TTN
Trenton
AUS
Austin
$164 Roundtrip, found 3 days ago
$164
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Sat, Oct 25 from Trenton to Austin, returning Sun, Nov 2, priced at $164 found 3 days ago
American Airlines
Wed, Oct 29 - Tue, Nov 4
TTN
Trenton
AUS
Austin
$169 Roundtrip, found 4 hours ago
$169
Roundtrip
found 4 hours ago
Select American Airlines flight, departing Wed, Oct 29 from Trenton to Austin, returning Tue, Nov 4, priced at $169 found 4 hours ago
American Airlines
Sat, Oct 11 - Tue, Oct 14
TTN
Trenton
AUS
Austin
$179 Roundtrip, just found
$179
Roundtrip
just found
Select American Airlines flight, departing Sat, Oct 11 from Trenton to Austin, returning Tue, Oct 14, priced at $179 just found
Frontier Airlines
Fri, Oct 24 - Sun, Nov 2
TTN
Trenton
AUS
Austin
$179 Roundtrip, found 3 days ago
$179
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Fri, Oct 24 from Trenton to Austin, returning Sun, Nov 2, priced at $179 found 3 days ago
American Airlines
Wed, Oct 1 - Sat, Oct 4
TTN
Trenton
AUS
Austin
$189 Roundtrip, found 1 day ago
$189
Roundtrip
found 1 day ago
Select American Airlines flight, departing Wed, Oct 1 from Trenton to Austin, returning Sat, Oct 4, priced at $189 found 1 day ago
American Airlines
Wed, Oct 22 - Tue, Oct 28
TTN
Trenton
AUS
Austin
$190 Roundtrip, found 1 hour ago
$190
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Wed, Oct 22 from Trenton to Austin, returning Tue, Oct 28, priced at $190 found 1 hour ago
Frontier Airlines
Mon, Nov 3 - Sun, Nov 16
TTN
Trenton
AUS
Austin
$194 Roundtrip, found 6 days ago
$194
Roundtrip
found 6 days ago
Select Frontier Airlines flight, departing Mon, Nov 3 from Trenton to Austin, returning Sun, Nov 16, priced at $194 found 6 days ago
American Airlines
Sat, Oct 11 - Tue, Oct 14
TTN
Trenton
AUS
Austin
$200 Roundtrip, just found
$200
Roundtrip
just found
Select American Airlines flight, departing Sat, Oct 11 from Trenton to Austin, returning Tue, Oct 14, priced at $200 just found
Frontier Airlines
Sat, Oct 25 - Mon, Oct 27
TTN
Trenton
AUS
Austin
$200 Roundtrip, found 3 days ago
$200
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Sat, Oct 25 from Trenton to Austin, returning Mon, Oct 27, priced at $200 found 3 days ago
Frontier Airlines
Thu, Oct 2 - Thu, Oct 16
TTN
Trenton
AUS
Austin
$202 Roundtrip, found 20 hours ago
$202
Roundtrip
found 20 hours ago
Select Frontier Airlines flight, departing Thu, Oct 2 from Trenton to Austin, returning Thu, Oct 16, priced at $202 found 20 hours ago

Alternative airports near Austin

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Austin-Bergstrom Intl. AUS. Cheapest and Closest option available. Average driving time to city center is 11 minutes. Flights from $284
AUS
Austin-Bergstrom Intl.
CheapestClosest
Average driving time to city center11 min
Flights from $284
Flights from Trenton (TTN) to Austin (AUS)
Origin airport
Mercer
Destination airport
Austin-Bergstrom Intl.
Airlines serving
American Airlines, Frontier Airlines
Roundtrip price
$164
Distance
1459 mi

Trenton to Austin Flights

The cheapest times to fly from Trenton to Austin

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

 

The best time to book a flight from Trenton to Austin

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

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 Austin in 2025. You can also book with separate airlines for your outbound and return journeys, from $87 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 Austin 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 Austin 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 Austin-Bergstrom Intl. Airport (AUS) cost?
Snag a cheap one-way flight from $87 or cheap return flight from $164 from Mercer Airport (TTN) to Austin-Bergstrom Intl. Airport (AUS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Mercer Airport (TTN) to Austin-Bergstrom Intl. Airport (AUS)?
Planning your trip for October can help you save, as it's the cheapest month for flights between TTN and AUS. You'll usually find the lowest fares during off-peak months.
Which airlines fly direct from Mercer Airport (TTN) to Austin-Bergstrom Intl. Airport (AUS)?
Although Trenton, NJ (TTN-Mercer) doesn't offer any direct flights to Austin-Bergstrom Intl. Airport (AUS), other airports have nonstop routes. Departing from Liberty Intl. Airport (EWR) will get you to Austin without any detours.
What is the cheapest airline that flies from Mercer Airport (TTN) to Austin-Bergstrom Intl. Airport (AUS)?
Use the filter tool on Expedia to compare different airlines and find the most affordable carrier that'll fly you from TTN to AUS. Then, sort your results by "Price (lowest to highest)" to snag a great deal.
How many flights per day from Mercer Airport (TTN) to Austin-Bergstrom Intl. Airport (AUS)?
There aren't any daily nonstop flights departing from Mercer Airport (TTN) to Austin-Bergstrom Intl. Airport (AUS). But you can choose flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be on your way in no time.
What day of the week has the most flights from TTN to AUS?
Typically you'll find the widest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* But this can change depending on the airline, time of year and other factors.*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 Austin-Bergstrom Intl. Airport (AUS)?
To arrive at Austin-Bergstrom Intl. Airport (AUS) on schedule, book a flight that takes off from 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 Austin-Bergstrom Intl. Airport (AUS) last-minute?
Last-minute bookings from TTN to AUS are generally more expensive. To lock in the lowest prices, start looking for flights as early as possible. That said, if you're flexible with your travel dates, it's possible to land a cheap ticket right before your trip.
Is it cheaper to book a TTN to AUS flight and hotel package?
Compared with arranging flights and hotels separately, booking a TTN to AUS flight and hotel package with Expedia could lead to significant savings. Better yet, having it all in one place will take the stress out of planning your trip. Just secure your flights and select from our extensive range of stays, then tailor your trip with extras like car rentals and activities.
Can I cancel or change the date of my flight from Mercer Airport (TTN) to Austin-Bergstrom Intl. Airport (AUS)?
In most cases, you can cancel or modify your TTN to AUS flight. However, there may be additional charges, especially if you made your booking more than 24 hours ago. Double-check your itinerary for the airline's policies and fees on flight changes, or if you want further information, go to our Customer Service portal.

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*Available to One Key members.