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KDT to OSN: distance & flight time
Nakhon Pathom (Kamphaeng Saen Airport) → Osan (Osan Air Base)
2,303 mi
3,706 km · 2,001 nm
4h 59m
estimated nonstop flight time
+2h
time difference · heading northeast
See live KDT→OSN fares Phone-only fares on this route — call free
Flight time details
2,303 miles nonstop takes roughly 4h 59m 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
- KDT — Kamphaeng Saen Airport · Nakhon Pathom, Thailand
- OSN — Osan Air Base · Osan, 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 KDT
- DMK · Don Mueang International Airport48 mi away
- BKK · Suvarnabhumi Airport63 mi away
- TKH · Takhli Airport85 mi away
- HHQ · Hua Hin Airport101 mi away
Near OSN
- ICN · Incheon International Airport41 mi away
- SWU · Suwon Airport10 mi away
- SSN · Seoul Air Base (K-16)25 mi away
- GMP · Gimpo International Airport35 mi away
Frequently asked questions
How far is KDT from OSN?
The flight distance from Nakhon Pathom (KDT) to Osan (OSN) is 2,303 miles (3,706 km, 2,001 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KDT to OSN?
A nonstop flight takes about 4h 59m 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 Nakhon Pathom and Osan?
Osan is 2 hours ahead of Nakhon Pathom.
What is the cheapest way to fly from KDT to OSN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KDT–OSN that never appear on search engines, with no booking fees.