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SEA to GNI: distance & flight time
Seattle (Seattle Tacoma International Airport) → Green Island (Lyudao Airport)
6,186 mi
9,955 km · 5,375 nm
12h 36m
estimated nonstop flight time
+15h
time difference · heading northwest
See live SEA→GNI fares Phone-only fares on this route — call free
Flight time details
6,186 miles nonstop takes roughly 12h 36m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 15-hour time gain when reading arrival times on your ticket.
The two airports
- SEA — Seattle Tacoma International Airport · Seattle, United States
- GNI — Lyudao Airport · Green Island, Taiwan
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 SEA
- RNT · Renton Municipal Airport5 mi away
- BFI · Boeing Field King County International Airport6 mi away
- TIW · Tacoma Narrows Airport18 mi away
- PWT · Bremerton National Airport21 mi away
Near GNI
- TTT · Taitung Airport24 mi away
- KYD · Lanyu Airport45 mi away
- PIF · Pingtung North Airport63 mi away
- HCN · Hengchun Airport64 mi away
Frequently asked questions
How far is SEA from GNI?
The flight distance from Seattle (SEA) to Green Island (GNI) is 6,186 miles (9,955 km, 5,375 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SEA to GNI?
A nonstop flight takes about 12h 36m 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 Seattle and Green Island?
Green Island is 15 hours ahead of Seattle.
What is the cheapest way to fly from SEA to GNI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SEA–GNI that never appear on search engines, with no booking fees.