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GAI to SSN: distance & flight time
Gaithersburg (Montgomery County Airpark) → Seoul East (Seoul Air Base (K-16))
6,923 mi
11,142 km · 6,016 nm
14h 2m
estimated nonstop flight time
+13h
time difference · heading north
See live GAI→SSN fares Phone-only fares on this route — call free
Flight time details
6,923 miles nonstop takes roughly 14h 2m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 13-hour time gain when reading arrival times on your ticket.
The two airports
- GAI — Montgomery County Airpark · Gaithersburg, United States
- SSN — Seoul Air Base (K-16) · Seoul East, 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 GAI
Near SSN
- ICN · Incheon International Airport36 mi away
- SWU · Suwon Airport15 mi away
- GMP · Gimpo International Airport19 mi away
- OSN · Osan Air Base25 mi away
Frequently asked questions
How far is GAI from SSN?
The flight distance from Gaithersburg (GAI) to Seoul East (SSN) is 6,923 miles (11,142 km, 6,016 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GAI to SSN?
A nonstop flight takes about 14h 2m 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 GAI to SSN?
Nonstop service on GAI–SSN 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 14h 2m nonstop estimate.
What is the time difference between Gaithersburg and Seoul East?
Seoul East is 13 hours ahead of Gaithersburg.
What is the cheapest way to fly from GAI to SSN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GAI–SSN that never appear on search engines, with no booking fees.
Why are some GAI to SSN fares phone-only?
Consolidator contracts let us sell certain GAI–SSN 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.