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GMP to ALO: distance & flight time
Seoul (Gimpo International Airport) → Waterloo (Waterloo Regional Airport)
6,378 mi
10,264 km · 5,542 nm
12h 58m
estimated nonstop flight time
-14h
time difference · heading northeast
See live GMP→ALO fares Phone-only fares on this route — call free
Flight time details
6,378 miles nonstop takes roughly 12h 58m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 14-hour time set-back when reading arrival times on your ticket.
The two airports
- GMP — Gimpo International Airport · Seoul, South Korea
- ALO — Waterloo Regional Airport · Waterloo, 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 ALO
- CCY · Northeast Iowa Regional Airport37 mi away
- CID · The Eastern Iowa Airport58 mi away
- MCW · Mason City Municipal Airport63 mi away
- PCD · Prairie Du Chien Municipal Airport72 mi away
Frequently asked questions
How far is GMP from ALO?
The flight distance from Seoul (GMP) to Waterloo (ALO) is 6,378 miles (10,264 km, 5,542 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GMP to ALO?
A nonstop flight takes about 12h 58m 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 Waterloo?
Waterloo is 14 hours behind Seoul.
What is the cheapest way to fly from GMP to ALO?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GMP–ALO that never appear on search engines, with no booking fees.