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FSM to CEI: distance & flight time
Fort Smith (Fort Smith Regional Airport) → Chiang Rai (Chiang Rai International Airport)
8,504 mi
13,686 km · 7,390 nm
17h 8m
estimated nonstop flight time
+12h
time difference · heading north
See live FSM→CEI fares Phone-only fares on this route — call free
Flight time details
8,504 miles nonstop takes roughly 17h 8m 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
- CEI — Chiang Rai International Airport · Chiang Rai, 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 CEI
- THL · Tachileik Airport37 mi away
- HOE · Ban Huoeisay Airport42 mi away
- MOG · Mong Hsat Airport56 mi away
- KET · Kengtung Airport95 mi away
Frequently asked questions
How far is FSM from CEI?
The flight distance from Fort Smith (FSM) to Chiang Rai (CEI) is 8,504 miles (13,686 km, 7,390 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from FSM to CEI?
A nonstop flight takes about 17h 8m 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 Fort Smith and Chiang Rai?
Chiang Rai is 12 hours ahead of Fort Smith.
What is the cheapest way to fly from FSM to CEI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on FSM–CEI that never appear on search engines, with no booking fees.