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OSN to SQL: distance & flight time
Osan (Osan Air Base) → San Carlos (San Carlos Airport)
5,649 mi
9,091 km · 4,909 nm
11h 33m
estimated nonstop flight time
-16h
time difference · heading northeast
See live OSN→SQL fares Phone-only fares on this route — call free
Flight time details
5,649 miles nonstop takes roughly 11h 33m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 16-hour time set-back when reading arrival times on your ticket.
The two airports
- OSN — Osan Air Base · Osan, South Korea
- SQL — San Carlos Airport · San Carlos, 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 SQL
- SFO · San Francisco International Airport10 mi away
- PAO · Palo Alto Airport of Santa Clara County8 mi away
- HWD · Hayward Executive Airport12 mi away
- NUQ · Moffett Federal Airfield13 mi away
Frequently asked questions
How far is OSN from SQL?
The flight distance from Osan (OSN) to San Carlos (SQL) is 5,649 miles (9,091 km, 4,909 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OSN to SQL?
A nonstop flight takes about 11h 33m 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 San Carlos?
San Carlos is 16 hours behind Osan.
What is the cheapest way to fly from OSN to SQL?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OSN–SQL that never appear on search engines, with no booking fees.