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GRF to SJY: distance & flight time
Fort Lewis (Gray Army Air Field) → Seinäjoki / Ilmajoki (Seinäjoki Airport)
4,617 mi
7,431 km · 4,012 nm
9h 31m
estimated nonstop flight time
+10h
time difference · heading north
See live GRF→SJY fares Phone-only fares on this route — call free
Flight time details
4,617 miles nonstop takes roughly 9h 31m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 10-hour time gain when reading arrival times on your ticket.
The two airports
- GRF — Gray Army Air Field · Fort Lewis, United States
- SJY — Seinäjoki Airport · Seinäjoki / Ilmajoki, Finland
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 GRF
- SEA · Seattle Tacoma International Airport29 mi away
- TCM · McChord Air Force Base6 mi away
- TIW · Tacoma Narrows Airport13 mi away
- OLM · Olympia Regional Airport17 mi away
Near SJY
- KHJ · Kauhajoki Airport21 mi away
- KAU · Kauhava Airport31 mi away
- VAA · Vaasa Airport42 mi away
- KOK · Kokkola-Pietarsaari Airport72 mi away
Frequently asked questions
How far is GRF from SJY?
The flight distance from Fort Lewis (GRF) to Seinäjoki / Ilmajoki (SJY) is 4,617 miles (7,431 km, 4,012 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GRF to SJY?
A nonstop flight takes about 9h 31m 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 Fort Lewis and Seinäjoki / Ilmajoki?
Seinäjoki / Ilmajoki is 10 hours ahead of Fort Lewis.
What is the cheapest way to fly from GRF to SJY?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GRF–SJY that never appear on search engines, with no booking fees.