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REP to GMP: distance & flight time
Siem-reap (Siem Reap International Airport) → Seoul (Gimpo International Airport)
2,186 mi
3,519 km · 1,900 nm
4h 45m
estimated nonstop flight time
+2h
time difference · heading northeast
See live REP→GMP fares Phone-only fares on this route — call free
Flight time details
2,186 miles nonstop takes roughly 4h 45m 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
- REP — Siem Reap International Airport · Siem-reap, Cambodia
- 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 REP
- BBM · Battambang Airport45 mi away
- KZC · Kampong Chhnang Airport95 mi away
- PXR · Surin Airport103 mi away
- TDX · Trat Airport128 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 REP from GMP?
The flight distance from Siem-reap (REP) to Seoul (GMP) is 2,186 miles (3,519 km, 1,900 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from REP to GMP?
A nonstop flight takes about 4h 45m 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 Siem-reap and Seoul?
Seoul is 2 hours ahead of Siem-reap.
What is the cheapest way to fly from REP to GMP?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on REP–GMP that never appear on search engines, with no booking fees.