American Airlines and United have round-trip flights from San Antonio (SAT) to Belize City or Costa Rica (BZE, LIR/SJO) for $300-$349 with a connection. Flights August to December. Very few extended weekends available. Origin/Destination reversible. No Christmas dates available.
Category: <span>Airfare Deals</span>
Southwest has round-trip flights from Austin (AUS) to New Orleans, Nashville, Panama City FL, Phoenix, Raleigh, Salt Lake City, San Diego, San Francisco, or Minneapolis (MSY, BNA, ECP, PHX, RDU, SLC, SFO, MSP) for $74-$173, NONSTOP. Flight dates vary depending on destination, with most being between August to September.
Other destinations to smaller airports are also on sale.

Cheap Flights: San Antonio to Vail or Aspen, Colorado $229-$269 r/t [Jun, Aug-Jan, Mar-Apr] – United
United has round-trip flights from San Antonio (SAT) to Vail or Aspen, Colorado (EGE, ASE) for $229-$269 with a connection. Flights in June, August, September, October, November, December, January, March, and April. Very few weekends available. Holiday blackouts.
United and American Airlines have round-trip flights from Austin or San Antonio (AUS, SAT) to Tokyo or Osaka (HND/NRT, KIX) for $822-$885 with a connection. Flights August to April.
A Carry-on bag and also a personal item is allowed for free on American. You can avoid paying for seat selection by accepting the randomly assigned seat at the gate.
American Airlines has round-trip flights from Austin (AUS) to Philadelphia or Chicago (PHL, ORD) for $151-$167, NONSTOP. Flights July to October. Cheapest departures on Tuesday, Wednesday, and Saturday.
United has round-trip flights from Austin (AUS) to New Delhi (DEL) for $649 with a connection. Flights September, October, January, February, and March. No Friday departures. Very few extended weekends available.
Southwest has round-trip flights from Austin (AUS) to Las Vegas (LAS) for $117-$137, NONSTOP. Flights June to August. No Thursday departures. Very few weekends available. Origin/Destination reversible.
British Airways, Finnair, and Iberia have round-trip flights from Austin (AUS) to Mykonos, Greece (JMK) for $685-$717 with a connection. Flights August to September. Departures on Monday, Tuesday, and Sunday. 7-day minimum stay required.
This requires an overnight in London, but I know some of you know how to make good use of that. The Tuesdays and Wednesday returns have the longest layovers.
Delta has round-trip flights from Austin (AUS) to Nashville (BNA) for $137, NONSTOP. Flights June to December. Weekends available. Origin/Destination reversible. Dates over Christmas and Thanksgiving are available.
British Airways, Iberia, Finnair, American Airlines and various other airlines have round-trip flights from Austin or San Antonio (AUS, SAT) to Madrid (MAD) for $437-$450 with a connection. Flights September to February. 7-day minimum stay required.
United has round-trip flights from Austin (AUS) to Rio de Janeiro (GIG) for $500 with a connection. Flights September to October.
United has round-trip flights from Austin (AUS) to Providenciales, Turks & Caicos Islands (PLS) for $373-$378 with a connection. Flights June to September. Departures on Monday, Tuesday, Wednesday, Thursday, and Sunday. No Fridays or Saturdays. Extended weekends available. Origin/Destination reversible.