Need help booking?
Unpublished phone-only deals available
CEI to SSN: distance & flight time
Chiang Rai (Chiang Rai International Airport) → Seoul East (Seoul Air Base (K-16))
2,033 mi
3,271 km · 1,766 nm
4h 27m
estimated nonstop flight time
+2h
time difference · heading northeast
See live CEI→SSN fares Phone-only fares on this route — call free
Flight time details
2,033 miles nonstop takes roughly 4h 27m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2-hour time gain when reading arrival times on your ticket.
The two airports
- CEI — Chiang Rai International Airport · Chiang Rai, Thailand
- SSN — Seoul Air Base (K-16) · Seoul East, South Korea
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 SSN
- ICN · Incheon International Airport36 mi away
- SWU · Suwon Airport15 mi away
- GMP · Gimpo International Airport19 mi away
- OSN · Osan Air Base25 mi away
Frequently asked questions
How far is CEI from SSN?
The flight distance from Chiang Rai (CEI) to Seoul East (SSN) is 2,033 miles (3,271 km, 1,766 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from CEI to SSN?
A nonstop flight takes about 4h 27m 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 Seoul East?
Seoul East is 2 hours ahead of Chiang Rai.
What is the cheapest way to fly from CEI to SSN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on CEI–SSN that never appear on search engines, with no booking fees.