I found seats for nonstop travel, departing Boston BOS on Thursday, August 29, returning from Austin AUS on Tuesday, September 3.
This fare includes a carry-on bag plus one small personal item. A checked bag costs $30 each way.
You may choose your own assignments from standard economy class seats that are still available at no extra charge.
JetBlue's Blue Plus Fare is $58 more roundtrip, which comes to $275. This will include one piece of checked luggage, which is cheaper than paying for baggage at the airport.
Looking for a place to stay in Austin? Here's what's available for the Labor Day Weekend dates on Hotelwatchdog.