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TCM to GMP: distance & flight time
Tacoma (McChord Air Force Base) → Seoul (Gimpo International Airport)
5,194 mi
8,359 km · 4,513 nm
10h 39m
estimated nonstop flight time
+16h
time difference · heading northwest
See live TCM→GMP fares Phone-only fares on this route — call free
Flight time details
5,194 miles nonstop takes roughly 10h 39m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 16-hour time gain when reading arrival times on your ticket.
The two airports
- TCM — McChord Air Force Base · Tacoma, 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 TCM
- SEA · Seattle Tacoma International Airport23 mi away
- GRF · Gray Army Air Field6 mi away
- TIW · Tacoma Narrows Airport10 mi away
- OLM · Olympia Regional Airport23 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 TCM from GMP?
The flight distance from Tacoma (TCM) to Seoul (GMP) is 5,194 miles (8,359 km, 4,513 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from TCM to GMP?
A nonstop flight takes about 10h 39m 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 Tacoma and Seoul?
Seoul is 16 hours ahead of Tacoma.
What is the cheapest way to fly from TCM to GMP?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on TCM–GMP that never appear on search engines, with no booking fees.