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GMP to CNI: distance & flight time
Seoul (Gimpo International Airport) → Changhai (Changhai Airport)
253 mi
406 km · 219 nm
1h 8m
estimated nonstop flight time
-1h
time difference · heading northwest
See live GMP→CNI fares Phone-only fares on this route — call free
Flight time details
253 miles nonstop takes roughly 1h 8m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time set-back when reading arrival times on your ticket.
The two airports
- GMP — Gimpo International Airport · Seoul, South Korea
- CNI — Changhai Airport · Changhai, China
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 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
Near CNI
- DLC · Zhoushuizi Airport64 mi away
- YKH · Yingkou Lanqi Airport90 mi away
- DDG · Dandong Airport101 mi away
- AOG · Anshan Air Base127 mi away
Frequently asked questions
How far is GMP from CNI?
The flight distance from Seoul (GMP) to Changhai (CNI) is 253 miles (406 km, 219 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GMP to CNI?
A nonstop flight takes about 1h 8m 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 Seoul and Changhai?
Changhai is 1 hour behind Seoul.
What is the cheapest way to fly from GMP to CNI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GMP–CNI that never appear on search engines, with no booking fees.