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OSN to UBP: distance & flight time
Osan (Osan Air Base) → Ubon Ratchathani (Ubon Ratchathani Airport)
2,030 mi
3,267 km · 1,764 nm
4h 27m
estimated nonstop flight time
-2h
time difference · heading southwest
See live OSN→UBP fares Phone-only fares on this route — call free
Flight time details
2,030 miles nonstop takes roughly 4h 27m gate to gate, flying southwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2-hour time set-back when reading arrival times on your ticket.
The two airports
- OSN — Osan Air Base · Osan, South Korea
- UBP — Ubon Ratchathani Airport · Ubon Ratchathani, 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 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
Near UBP
- PKZ · Pakse International Airport61 mi away
- ZVK · Savannakhet Airport90 mi away
- ROI · Roi Et Airport94 mi away
- PXR · Surin Airport95 mi away
Frequently asked questions
How far is OSN from UBP?
The flight distance from Osan (OSN) to Ubon Ratchathani (UBP) is 2,030 miles (3,267 km, 1,764 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OSN to UBP?
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 Osan and Ubon Ratchathani?
Ubon Ratchathani is 2 hours behind Osan.
What is the cheapest way to fly from OSN to UBP?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OSN–UBP that never appear on search engines, with no booking fees.