Need help booking?
Unpublished phone-only deals available
SJT to CEI: distance & flight time
San Angelo (San Angelo Regional Mathis Field) → Chiang Rai (Chiang Rai International Airport)
8,643 mi
13,909 km · 7,510 nm
17h 25m
estimated nonstop flight time
+12h
time difference · heading northwest
See live SJT→CEI fares Phone-only fares on this route — call free
Flight time details
8,643 miles nonstop takes roughly 17h 25m gate to gate, flying northwest. 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
- SJT — San Angelo Regional Mathis Field · San Angelo, 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 SJT
- OZA · Ozona Municipal Airport60 mi away
- BBD · Curtis Field70 mi away
- JCT · Kimble County Airport73 mi away
- DYS · Dyess Air Force Base83 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 SJT from CEI?
The flight distance from San Angelo (SJT) to Chiang Rai (CEI) is 8,643 miles (13,909 km, 7,510 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SJT to CEI?
A nonstop flight takes about 17h 25m 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 San Angelo and Chiang Rai?
Chiang Rai is 12 hours ahead of San Angelo.
What is the cheapest way to fly from SJT to CEI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SJT–CEI that never appear on search engines, with no booking fees.