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OSN to YST: distance & flight time
Osan (Osan Air Base) → St. Theresa Point (St. Theresa Point Airport)
5,676 mi
9,135 km · 4,932 nm
11h 36m
estimated nonstop flight time
-14h
time difference · heading northeast
See live OSN→YST fares Phone-only fares on this route — call free
Flight time details
5,676 miles nonstop takes roughly 11h 36m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 14-hour time set-back when reading arrival times on your ticket.
The two airports
- OSN — Osan Air Base · Osan, South Korea
- YST — St. Theresa Point Airport · St. Theresa Point, Canada
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 YST
- YIV · Island Lake Airport8 mi away
- YGO · Gods Lake Narrows Airport51 mi away
- YRS · Red Sucker Lake Airport57 mi away
- ZGI · Gods River Airport75 mi away
Frequently asked questions
How far is OSN from YST?
The flight distance from Osan (OSN) to St. Theresa Point (YST) is 5,676 miles (9,135 km, 4,932 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OSN to YST?
A nonstop flight takes about 11h 36m 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 St. Theresa Point?
St. Theresa Point is 14 hours behind Osan.
What is the cheapest way to fly from OSN to YST?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OSN–YST that never appear on search engines, with no booking fees.