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TGO to OSN: distance & flight time
Tongliao (Tongliao Airport) → Osan (Osan Air Base)
514 mi
827 km · 447 nm
1h 35m
estimated nonstop flight time
+1h
time difference · heading southeast
See live TGO→OSN fares Phone-only fares on this route — call free
Flight time details
514 miles nonstop takes roughly 1h 35m gate to gate, flying southeast. 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
- TGO — Tongliao Airport · Tongliao, 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 TGO
- DBC · Baicheng Chang'an Airport141 mi away
- SHE · Taoxian Airport148 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 TGO from OSN?
The flight distance from Tongliao (TGO) to Osan (OSN) is 514 miles (827 km, 447 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from TGO to OSN?
A nonstop flight takes about 1h 35m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
Are there nonstop flights from TGO to OSN?
Nonstop service on TGO–OSN depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 1h 35m nonstop estimate.
What is the time difference between Tongliao and Osan?
Osan is 1 hour ahead of Tongliao.
What is the cheapest way to fly from TGO to OSN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on TGO–OSN that never appear on search engines, with no booking fees.
Why are some TGO to OSN fares phone-only?
Consolidator contracts let us sell certain TGO–OSN tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.