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ICN to GMP: distance & flight time
Seoul (Incheon International Airport) → Seoul (Gimpo International Airport)
20 mi
32 km · 17 nm
31m
estimated nonstop flight time
Same time
time difference · heading east
See live ICN→GMP fares Phone-only fares on this route — call free
Flight time details
20 miles nonstop takes roughly 31m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- ICN — Incheon International Airport · Seoul, South Korea
- GMP — Gimpo International Airport · Seoul, 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 ICN
- GMP · Gimpo International Airport20 mi away
- SWU · Suwon Airport34 mi away
- SSN · Seoul Air Base (K-16)36 mi away
- OSN · Osan Air Base41 mi away
Near GMP
- ICN · Incheon International Airport20 mi away
- SSN · Seoul Air Base (K-16)19 mi away
- SWU · Suwon Airport25 mi away
- OSN · Osan Air Base35 mi away
Frequently asked questions
How far is ICN from GMP?
The flight distance from Seoul (ICN) to Seoul (GMP) is 20 miles (32 km, 17 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ICN to GMP?
A nonstop flight takes about 31m 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 ICN to GMP?
Nonstop service on ICN–GMP 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 31m nonstop estimate.
What is the cheapest way to fly from ICN to GMP?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ICN–GMP that never appear on search engines, with no booking fees.
Why are some ICN to GMP fares phone-only?
Consolidator contracts let us sell certain ICN–GMP 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.