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CEI to ATY: distance & flight time
Chiang Rai (Chiang Rai International Airport) → Watertown (Watertown Regional Airport)
7,828 mi
12,598 km · 6,802 nm
15h 49m
estimated nonstop flight time
-12h
time difference · heading north
See live CEI→ATY 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 set-back when reading arrival times on your ticket.
The two airports
- CEI — Chiang Rai International Airport · Chiang Rai, Thailand
- ATY — Watertown Regional Airport · Watertown, United States
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 CEI
- THL · Tachileik Airport37 mi away
- HOE · Ban Huoeisay Airport42 mi away
- MOG · Mong Hsat Airport56 mi away
- KET · Kengtung Airport95 mi away
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
Frequently asked questions
How far is CEI from ATY?
The flight distance from Chiang Rai (CEI) to Watertown (ATY) 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 CEI to ATY?
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 Chiang Rai and Watertown?
Watertown is 12 hours behind Chiang Rai.
What is the cheapest way to fly from CEI to ATY?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on CEI–ATY that never appear on search engines, with no booking fees.