Need help booking?
Unpublished phone-only deals available
HDH to GMP: distance & flight time
Dillingham (Dillingham Airfield) → Seoul (Gimpo International Airport)
4,525 mi
7,282 km · 3,932 nm
9h 20m
estimated nonstop flight time
+19h
time difference · heading northwest
See live HDH→GMP fares Phone-only fares on this route — call free
Flight time details
4,525 miles nonstop takes roughly 9h 20m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 19-hour time gain when reading arrival times on your ticket.
The two airports
- HDH — Dillingham Airfield · Dillingham, United States
- 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 HDH
- HNL · Daniel K Inouye International Airport25 mi away
- HHI · Wheeler Army Airfield12 mi away
- JRF · Kalaeloa Airport20 mi away
- NGF · Kaneohe Bay MCAS (Marion E. Carl Field) Airport29 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 HDH from GMP?
The flight distance from Dillingham (HDH) to Seoul (GMP) is 4,525 miles (7,282 km, 3,932 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from HDH to GMP?
A nonstop flight takes about 9h 20m 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 Dillingham and Seoul?
Seoul is 19 hours ahead of Dillingham.
What is the cheapest way to fly from HDH to GMP?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on HDH–GMP that never appear on search engines, with no booking fees.