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OSN to DLS: distance & flight time
Osan (Osan Air Base) → The Dalles (Columbia Gorge Regional the Dalles Municipal Airport)
5,325 mi
8,570 km · 4,627 nm
10h 54m
estimated nonstop flight time
-17h
time difference · heading northeast
See live OSN→DLS fares Phone-only fares on this route — call free
Flight time details
5,325 miles nonstop takes roughly 10h 54m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 17-hour time set-back when reading arrival times on your ticket.
The two airports
- OSN — Osan Air Base · Osan, South Korea
- DLS — Columbia Gorge Regional the Dalles Municipal Airport · The Dalles, United States
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 DLS
- TTD · Portland Troutdale Airport60 mi away
- PDX · Portland International Airport69 mi away
- YKM · Yakima Air Terminal McAllister Field72 mi away
- HIO · Portland Hillsboro Airport86 mi away
Frequently asked questions
How far is OSN from DLS?
The flight distance from Osan (OSN) to The Dalles (DLS) is 5,325 miles (8,570 km, 4,627 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OSN to DLS?
A nonstop flight takes about 10h 54m 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 OSN to DLS?
Nonstop service on OSN–DLS 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 10h 54m nonstop estimate.
What is the time difference between Osan and The Dalles?
The Dalles is 17 hours behind Osan.
What is the cheapest way to fly from OSN to DLS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OSN–DLS that never appear on search engines, with no booking fees.
Why are some OSN to DLS fares phone-only?
Consolidator contracts let us sell certain OSN–DLS 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.