Austin (AUS) to Ho Chi Minh City (SGN): 9,175 miles (14,765 km) great-circle, about 18h 50m nonstop by our estimate. Cheapest fare observed: $964 round-trip on American Airlines, with 2 stops, departing May 12, 2026.
$964 round-trip, American Airlines AA1291, departing 2026-05-12 at 19:37, returning 2026-06-23. The recorded itinerary left on a Tuesday, returning on a Tuesday 42 nights later; the fare was observed 17 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $964, it ranked 27th of the 30 round-trip fares we recorded from AUS (median $292). That is 10.5 cents per great-circle mile (round-trip price over one-way distance), below the AUS median of 22.5 cents across 30 round-trip routes.
Routes from AUS of similar length: Lagos (6,639 mi) at $1746 and Dubrovnik (5,973 mi) at $1141.
American Airlines had the cheapest fare on 5 of 30 AUS routes. It is the longest of the 30 routes we track from AUS.
Of 20 departure airports with a fare to Ho Chi Minh City, Austin (AUS) ranked 15th at $964. Lowest: $183 from Bangkok (BKK); highest: $1566 from Salt Lake City (SLC); 8 nonstop. Cheapest-fare airlines (routes): VietJet Air (3), Air India (2), American Airlines (2), Qatar (2), AirAsia (1) and Cathay Pacific (1), plus 9 more.
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones America/Chicago, Asia/Ho_Chi_Minh; flight time is our estimate.