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FSM to UTH: distance & flight time
Fort Smith (Fort Smith Regional Airport) → Udon Thani (Udon Thani Airport)
8,624 mi
13,880 km · 7,494 nm
17h 23m
estimated nonstop flight time
+12h
time difference · heading north
See live FSM→UTH fares Phone-only fares on this route — call free
Flight time details
8,624 miles nonstop takes roughly 17h 23m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 12-hour time gain when reading arrival times on your ticket.
The two airports
- FSM — Fort Smith Regional Airport · Fort Smith, 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 FSM
- FYV · Drake Field47 mi away
- XNA · Northwest Arkansas Regional Airport65 mi away
- MLC · Mc Alester Regional Airport86 mi away
- OKM · Okmulgee Regional Airport92 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 FSM from UTH?
The flight distance from Fort Smith (FSM) to Udon Thani (UTH) is 8,624 miles (13,880 km, 7,494 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from FSM to UTH?
A nonstop flight takes about 17h 23m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
Are there nonstop flights from FSM to UTH?
Nonstop service on FSM–UTH depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 17h 23m nonstop estimate.
What is the time difference between Fort Smith and Udon Thani?
Udon Thani is 12 hours ahead of Fort Smith.
What is the cheapest way to fly from FSM to UTH?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on FSM–UTH that never appear on search engines, with no booking fees.
Why are some FSM to UTH fares phone-only?
Consolidator contracts let us sell certain FSM–UTH tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.