Flight Time from Hanoi to Udon Thani
The flight from Hanoi to Udon Thani covers about 319 mi and takes roughly 1 hr 5 min nonstop. Flight duration estimate and fare guide.
Hanoi and Udon Thani are about 319 mi (514 km) apart in a straight line. By road that works out to roughly 389 mi (627 km), a drive of about 6 hr 36 min. A nonstop flight covers the great-circle distance in approximately 1 hr 5 min.
| Straight-line distance | 319 mi / 514 km |
| Road distance (est.) | 389 mi / 627 km |
| Driving time (est.) | 6 hr 36 min |
| Nonstop flight (est.) | 1 hr 5 min |
| Driving fuel (est., 1-way) | $49 |
| Typical flight fare | $80–$250 |
| Geographic midpoint | 19.226, 104.297 |
How these estimates work
Straight-line distance uses the haversine formula on each city's coordinates. Road distance applies a circuity factor (~1.2–1.4×) and driving time a blended average speed. Flight time uses typical jet cruise speed plus ~30 minutes for taxi, climb and descent. Treat all figures as planning estimates.
Frequently asked questions
Hanoi to Udon Thani is about 319 mi (514 km) in a straight line, and roughly 389 mi (627 km) by road.