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GMP to ALS: distance & flight time
Seoul (Gimpo International Airport) → Alamosa (San Luis Valley Regional Bergman Field)
6,263 mi
10,079 km · 5,442 nm
12h 45m
estimated nonstop flight time
-15h
time difference · heading northeast
See live GMP→ALS fares Phone-only fares on this route — call free
Flight time details
6,263 miles nonstop takes roughly 12h 45m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 15-hour time set-back when reading arrival times on your ticket.
The two airports
- GMP — Gimpo International Airport · Seoul, South Korea
- ALS — San Luis Valley Regional Bergman Field · Alamosa, United States
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 ALS
- TSM · Taos Regional Airport68 mi away
- RTN · Raton Municipal-Crews Field89 mi away
- PUB · Pueblo Memorial Airport95 mi away
- GUC · Gunnison Crested Butte Regional Airport96 mi away
Frequently asked questions
How far is GMP from ALS?
The flight distance from Seoul (GMP) to Alamosa (ALS) is 6,263 miles (10,079 km, 5,442 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GMP to ALS?
A nonstop flight takes about 12h 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 Seoul and Alamosa?
Alamosa is 15 hours behind Seoul.
What is the cheapest way to fly from GMP to ALS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GMP–ALS that never appear on search engines, with no booking fees.