Denver (DEN) to Ho Chi Minh City (SGN): 8,401 miles (13,520 km) great-circle, about 17h 20m nonstop by our estimate. Cheapest fare observed: $1163 round-trip on American Airlines, with 2 stops, departing June 8, 2026.
$1163 round-trip, American Airlines AA7640, departing 2026-06-08 at 18:10, returning 2026-06-22. The recorded itinerary left on a Monday, returning on a Monday 14 nights later; the fare was observed 44 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $1163, it ranked 28th of the 30 round-trip fares we recorded from DEN (median $204). That is 13.8 cents per great-circle mile (round-trip price over one-way distance), below the DEN median of 16.1 cents across 30 round-trip routes.
Routes from DEN of similar length: Bangkok (8,393 mi) at $1251 and Moscow (5,452 mi) at $1635.
American Airlines had the cheapest fare on 4 of 30 DEN routes. It is the longest of the 30 routes we track from DEN.
Of 20 departure airports with a fare to Ho Chi Minh City, Denver (DEN) ranked 16th at $1163. 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/Denver, Asia/Ho_Chi_Minh; flight time is our estimate.