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ADT to CEI: distance & flight time
Ada (Ada Regional Airport) → Chiang Rai (Chiang Rai International Airport)
8,500 mi
13,680 km · 7,387 nm
17h 8m
estimated nonstop flight time
+12h
time difference · heading north
See live ADT→CEI fares Phone-only fares on this route — call free
Flight time details
8,500 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
- ADT — Ada Regional Airport · Ada, 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 ADT
- ADM · Ardmore Municipal Airport40 mi away
- MLC · Mc Alester Regional Airport51 mi away
- TIK · Tinker Air Force Base58 mi away
- OKC · Will Rogers World Airport66 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 ADT from CEI?
The flight distance from Ada (ADT) to Chiang Rai (CEI) is 8,500 miles (13,680 km, 7,387 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ADT 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 Ada and Chiang Rai?
Chiang Rai is 12 hours ahead of Ada.
What is the cheapest way to fly from ADT to CEI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ADT–CEI that never appear on search engines, with no booking fees.