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NST to UTH: distance & flight time
Nakhon Si Thammarat (Nakhon Si Thammarat Airport) → Udon Thani (Udon Thani Airport)
640 mi
1,031 km · 557 nm
1h 52m
estimated nonstop flight time
Same time
time difference · heading north
See live NST→UTH fares Phone-only fares on this route — call free
Flight time details
640 miles nonstop takes roughly 1h 52m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- NST — Nakhon Si Thammarat Airport · Nakhon Si Thammarat, Thailand
- UTH — Udon Thani Airport · Udon Thani, Thailand
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near NST
- URT · Surat Thani Airport69 mi away
- USM · Samui Airport70 mi away
- KBV · Krabi Airport72 mi away
- TST · Trang Airport75 mi away
Near UTH
- VTE · Wattay International Airport44 mi away
- KKC · Khon Kaen Airport64 mi away
- LOE · Loei Airport70 mi away
- SNO · Sakon Nakhon Airport89 mi away
Frequently asked questions
How far is NST from UTH?
The flight distance from Nakhon Si Thammarat (NST) to Udon Thani (UTH) is 640 miles (1,031 km, 557 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from NST to UTH?
A nonstop flight takes about 1h 52m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the cheapest way to fly from NST to UTH?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on NST–UTH that never appear on search engines, with no booking fees.