Fiji Airways has round-trip flights from Austin (AUS) to Nadi (NAN) for $746-$760 with a connection. Flights April, May, June, August, September, October, December, January, and February. Departures on Tuesday, Thursday, and Saturday. Extended weekends available. Origin/Destination reversible. No Christmas dates available.
Some small OTAs on Skyscanner have this for as low as $700; which is cheaper than the airline. If you plan on booking there, beware of any site that charges a fee to cancel a ticket within the 24-hour “free” period. Use unknown booking sites at your own risk.
A Carry-on bag and also a personal item is allowed for free. You can avoid paying for seat selection by accepting the randomly assigned seat at the gate.
Click for more details and booking links Cheap Flights: Austin to/from Nadi, Fiji $700-$760 r/t [Apr-Jun, Aug-Oct, Dec-Feb] (No Christmas) – Fiji Airways