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ATY to CEI: distance & flight time
Watertown (Watertown Regional Airport) → Chiang Rai (Chiang Rai International Airport)
7,828 mi
12,598 km · 6,802 nm
15h 49m
estimated nonstop flight time
+12h
time difference · heading north
See live ATY→CEI fares Phone-only fares on this route — call free
Flight time details
7,828 miles nonstop takes roughly 15h 49m 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
- ATY — Watertown Regional Airport · Watertown, 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 ATY
- HON · Huron Regional Airport64 mi away
- ABR · Aberdeen Regional Airport72 mi away
- MHE · Mitchell Municipal Airport90 mi away
- FSD · Joe Foss Field Airport94 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 ATY from CEI?
The flight distance from Watertown (ATY) to Chiang Rai (CEI) is 7,828 miles (12,598 km, 6,802 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ATY to CEI?
A nonstop flight takes about 15h 49m 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 Watertown and Chiang Rai?
Chiang Rai is 12 hours ahead of Watertown.
What is the cheapest way to fly from ATY to CEI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ATY–CEI that never appear on search engines, with no booking fees.