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SMN to UTH: distance & flight time
Salmon (Lemhi County Airport) → Udon Thani (Udon Thani Airport)
7,543 mi
12,139 km · 6,554 nm
15h 15m
estimated nonstop flight time
+13h
time difference · heading northwest
See live SMN→UTH fares Phone-only fares on this route — call free
Flight time details
7,543 miles nonstop takes roughly 15h 15m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 13-hour time gain when reading arrival times on your ticket.
The two airports
- SMN — Lemhi County Airport · Salmon, United States
- 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 SMN
- BTM · Bert Mooney Airport88 mi away
- MYL · McCall Municipal Airport110 mi away
- SUN · Friedman Memorial Airport114 mi away
- MSO · Missoula International Airport124 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 SMN from UTH?
The flight distance from Salmon (SMN) to Udon Thani (UTH) is 7,543 miles (12,139 km, 6,554 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SMN to UTH?
A nonstop flight takes about 15h 15m 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 time difference between Salmon and Udon Thani?
Udon Thani is 13 hours ahead of Salmon.
What is the cheapest way to fly from SMN to UTH?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SMN–UTH that never appear on search engines, with no booking fees.