Delta and LATAM have round-trip flights from Austin (AUS) to Santiago (SCL) for $490 with a connection. Flights in September. Very few extended weekends available.
A Carry-on bag and also a personal item is allowed for free on Delta. You can avoid paying for seat selection by accepting the randomly assigned seat at the gate.
COPA has round-trip flights from Austin (AUS) to Santiago (SCL) for $450 with a connection. If you apply the Hopper -$50 off coupon, the cost of the round-trip can get as low as $400. Flights August to October.
COPA is a budget carrier, but they do allow for a free carry-on bag.
Alternatively, if you prefer a full service carrier. American Airlines has round-trip flights from Austin (AUS) to Santiago (SCL) for $560 with a connection. If you apply the Hopper -$50 off coupon, the cost of the round-trip can get as low as $510. Flights September, October, November, March, April, and May. No Weekends. Departures on Monday, Tuesday, Wednesday, and Thursday. No Thanksgiving dates.
COPA has round-trip flights from Austin (AUS) to Santiago (SCL) for $498-$508 with a connection. Flights August to October.
American Airlines has round-trip flights from Austin (AUS) to Santiago (SCL) for $536 with a connection. Flights August to November. No Weekends. Departures on Monday, Tuesday, Wednesday, and Thursday. No Thanksgiving dates.
American Airlines has round-trip flights from Austin (AUS) to Santiago (SCL) for $609-$635 with a connection. Flights June to November. 7-day minimum stay required. No Thanksgiving dates.
[03/19/2015 @ 3:08 PM] Fare gone. 🙁 Removed from Bookable deals list.
Aeromexico has round-trip flights from San Antonio (SAT) to Santiago, Chile (SCL) starting at $478. NOTE: You will probably want to pay a bit more to avoid long connection times in Mexico. Flights April-May.
