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OSN to DBQ: distance & flight time
Osan (Osan Air Base) → Dubuque IA (Dubuque Regional Airport)
6,453 mi
10,385 km · 5,607 nm
13h 7m
estimated nonstop flight time
-14h
time difference · heading northeast
See live OSN→DBQ fares Phone-only fares on this route — call free
Flight time details
6,453 miles nonstop takes roughly 13h 7m 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
- DBQ — Dubuque Regional Airport · Dubuque IA, 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 DBQ
- CWI · Clinton Municipal Airport44 mi away
- PCD · Prairie Du Chien Municipal Airport48 mi away
- LNR · Tri-County Regional Airport62 mi away
- CID · The Eastern Iowa Airport63 mi away
Frequently asked questions
How far is OSN from DBQ?
The flight distance from Osan (OSN) to Dubuque IA (DBQ) is 6,453 miles (10,385 km, 5,607 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OSN to DBQ?
A nonstop flight takes about 13h 7m 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 Dubuque IA?
Dubuque IA is 14 hours behind Osan.
What is the cheapest way to fly from OSN to DBQ?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OSN–DBQ that never appear on search engines, with no booking fees.