COPA has round-trip flights from Austin (AUS) to Buenos Aires, Sao Paulo or Santiago (EZE, GRU, SCL) for $406-$472 with a connection. Flights between February and April.
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Delta and Virgin Atlantic have round-trip flights from Austin (AUS) to Manchester (MAN) for $565 with a connection. Flights January to April. Departures on Monday, Tuesday, Wednesday, and Sunday. 7-day minimum stay required.
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.

Cheap Flights: Austin to Madrid or Barcelona $455-$493 r/t [Jan-Feb, Apr, May] – United / Air Canada
United and Air Canada have round-trip flights from Austin (AUS) to Madrid or Barcelona (MAD, BCN) for $455-$493 with a connection. Madrid flights January, February, and April. Barcelona flights January, February, April, and May. 7-day minimum stay required.
United has round-trip flights from Austin or San Antonio (AUS, SAT) to Sydney, or Melbourne, Australia (SYD, BNE) for $906-$917 with a connection. Flights February to March. Departures on Monday, Tuesday, Wednesday, and Sunday.
San Antonio flights into Melbourne require long connection times or multiple stops, so it will probably make more sense to fly out of AUS for those.
American Airlines, Iberia, and Finnair have round-trip flights from Austin (AUS) to Inverness, Scotland (INV) for $495 with a connection. Flights March, April, May, August, September, and October. Departures on Monday, Tuesday, and Sunday. 7-day minimum stay required.
American Airlines, Iberia, and Finnair have round-trip flights from Austin (AUS) to London (LHR) for $587-$601, NONSTOP. Flights January, February, March, April, May, August, September, October, and November. Departures on Monday, Tuesday, Wednesday, and Sunday. 7-day minimum stay required. No Thanksgiving dates.
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.
Southwest has round-trip flights from Austin (AUS) to Nashville (BNA) for $105-$123, NONSTOP. Flights February to May. Weekends available. Origin/Destination reversible.
Note: This is part of the wider “WOW” coupon-code sale. Note that you don’t need to enter the coupon code to see the discount. Use the fare calendar.
Note: Delta is matching on some dates.
Carry-on and checked bag are allowed for free. Southwest doesn’t charge change fees.
American Airlines and United have round-trip flights from Austin (AUS) to Providenciales, Turks & Caicos Islands (PLS) for $387-$411 with a connection. Flights January to May. Weekends available. Origin/Destination reversible.
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 and Southwest has round-trip flights from Austin (AUS) to San Diego or San Jose, California (SAN, SJC) for $131-$152, NONSTOP. Flights January to May. Extended weekends available. Origin/Destination reversible.
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.
A carry-on bag and two checked bags are allowed for free on Southwest.
American Airlines has round-trip flights from Austin (AUS) to Cabo or Nassau, Bahamas (SJD, NAS) for $282-$339 NONSTOP, or with a connection. Flights January, February, March, and May. Weekends available. Origin/Destination reversible.
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.
Hawaiian has round-trip flights from Austin (AUS) to Honolulu (HNL) for $341, NONSTOP. Flights January to May. Departures on Monday, Wednesday, and Friday. Weekends available. Origin/Destination reversible.
Priceline has “Express Deals” on some dates between January and February for about $250. With “Express Deals” the airline and exact flight are hidden until after purchase and those purchases are final. There is no 24-hour free cancellation for “Express Deals”. The flight is guaranteed to be on a major airline. Be sure to select the deal with 0 to 1 stops and a layover less than 3-hours.
The Priceline Express deal will likely have a connection.
American Airlines has round-trip flights from Austin or San Antonio (AUS, SAT) to Belize City (BZE) for $310-$324 with a connection. Flights January to May. Very few weekends available. Origin/Destination reversible.
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.