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HGN to GMP: distance & flight time
Mae Hong Son (Mae Hong Son Airport) → Seoul (Gimpo International Airport)
2,143 mi
3,449 km · 1,862 nm
4h 40m
estimated nonstop flight time
+2h
time difference · heading northeast
See live HGN→GMP fares Phone-only fares on this route — call free
Flight time details
2,143 miles nonstop takes roughly 4h 40m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2-hour time gain when reading arrival times on your ticket.
The two airports
- HGN — Mae Hong Son Airport · Mae Hong Son, Thailand
- 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 HGN
- PYY · Mae Hong Son Airport30 mi away
- LIW · Loikaw Airport56 mi away
- CNX · Chiang Mai International Airport74 mi away
- NMS · Namsang Airport111 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 HGN from GMP?
The flight distance from Mae Hong Son (HGN) to Seoul (GMP) is 2,143 miles (3,449 km, 1,862 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from HGN to GMP?
A nonstop flight takes about 4h 40m 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 Mae Hong Son and Seoul?
Seoul is 2 hours ahead of Mae Hong Son.
What is the cheapest way to fly from HGN to GMP?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on HGN–GMP that never appear on search engines, with no booking fees.