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HEK to OSN: distance & flight time
Heihe (Heihe Airport) → Osan (Osan Air Base)
904 mi
1,455 km · 785 nm
2h 26m
estimated nonstop flight time
+1h
time difference · heading south
See live HEK→OSN fares Phone-only fares on this route — call free
Flight time details
904 miles nonstop takes roughly 2h 26m gate to gate, flying south. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time gain when reading arrival times on your ticket.
The two airports
- HEK — Heihe Airport · Heihe, China
- 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 HEK
- BQS · Ignatyevo Airport18 mi away
- DTU · Wudalianchi Dedu Airport131 mi away
- JGD · Jiagedaqi Airport142 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 HEK from OSN?
The flight distance from Heihe (HEK) to Osan (OSN) is 904 miles (1,455 km, 785 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from HEK to OSN?
A nonstop flight takes about 2h 26m 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 Heihe and Osan?
Osan is 1 hour ahead of Heihe.
What is the cheapest way to fly from HEK to OSN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on HEK–OSN that never appear on search engines, with no booking fees.