Need help booking?
Unpublished phone-only deals available
SEA to JSI: distance & flight time
Seattle (Seattle Tacoma International Airport) → Skiathos (Skiathos Island National Airport)
6,093 mi
9,805 km · 5,294 nm
12h 25m
estimated nonstop flight time
+10h
time difference · heading northeast
See live SEA→JSI fares Phone-only fares on this route — call free
Flight time details
6,093 miles nonstop takes roughly 12h 25m gate to gate, flying northeast. 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
- SEA — Seattle Tacoma International Airport · Seattle, United States
- JSI — Skiathos Island National Airport · Skiathos, Greece
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 JSI
- VOL · Nea Anchialos Airport38 mi away
- SKU · Skiros Airport55 mi away
- LRA · Larisa Airport64 mi away
- ATH · Eleftherios Venizelos International Airport89 mi away
Frequently asked questions
How far is SEA from JSI?
The flight distance from Seattle (SEA) to Skiathos (JSI) is 6,093 miles (9,805 km, 5,294 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SEA to JSI?
A nonstop flight takes about 12h 25m 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 Skiathos?
Skiathos is 10 hours ahead of Seattle.
What is the cheapest way to fly from SEA to JSI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SEA–JSI that never appear on search engines, with no booking fees.