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RLK to USM: distance & flight time
Bayannur (Bayannur Tianjitai Airport) → Ko Samui (Samui Airport)
2,218 mi
3,570 km · 1,928 nm
4h 49m
estimated nonstop flight time
-1h
time difference · heading south
See live RLK→USM fares Phone-only fares on this route — call free
Flight time details
2,218 miles nonstop takes roughly 4h 49m gate to gate, flying south. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time set-back when reading arrival times on your ticket.
The two airports
- RLK — Bayannur Tianjitai Airport · Bayannur, China
- USM — Samui Airport · Ko Samui, 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 RLK
- WUA · Wuhai Airport93 mi away
- BAV · Baotou Airport121 mi away
- DSN · Ordos Ejin Horo Airport149 mi away
Near USM
- URT · Surat Thani Airport69 mi away
- NST · Nakhon Si Thammarat Airport70 mi away
- CJM · Chumphon Airport93 mi away
- UNN · Ranong Airport102 mi away
Frequently asked questions
How far is RLK from USM?
The flight distance from Bayannur (RLK) to Ko Samui (USM) is 2,218 miles (3,570 km, 1,928 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from RLK to USM?
A nonstop flight takes about 4h 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 Bayannur and Ko Samui?
Ko Samui is 1 hour behind Bayannur.
What is the cheapest way to fly from RLK to USM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on RLK–USM that never appear on search engines, with no booking fees.