Need help booking?
Unpublished phone-only deals available
GTF to CNX: distance & flight time
Great Falls (Great Falls International Airport) → Chiang Mai (Chiang Mai International Airport)
7,488 mi
12,050 km · 6,507 nm
15h 9m
estimated nonstop flight time
+13h
time difference · heading northwest
See live GTF→CNX fares Phone-only fares on this route — call free
Flight time details
7,488 miles nonstop takes roughly 15h 9m 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
- GTF — Great Falls International Airport · Great Falls, United States
- CNX — Chiang Mai International Airport · Chiang Mai, 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 GTF
- HLN · Helena Regional Airport67 mi away
- CTB · Cut Bank International Airport91 mi away
- LWT · Lewistown Municipal Airport94 mi away
- HVR · Havre City County Airport104 mi away
Near CNX
- LPT · Lampang Airport49 mi away
- PYY · Mae Hong Son Airport54 mi away
- HGN · Mae Hong Son Airport74 mi away
- PRH · Phrae Airport90 mi away
Frequently asked questions
How far is GTF from CNX?
The flight distance from Great Falls (GTF) to Chiang Mai (CNX) is 7,488 miles (12,050 km, 6,507 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GTF to CNX?
A nonstop flight takes about 15h 9m 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 Great Falls and Chiang Mai?
Chiang Mai is 13 hours ahead of Great Falls.
What is the cheapest way to fly from GTF to CNX?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GTF–CNX that never appear on search engines, with no booking fees.