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IAD to SJY: distance & flight time
Washington (Washington Dulles International Airport) → Seinäjoki / Ilmajoki (Seinäjoki Airport)
4,169 mi
6,710 km · 3,623 nm
8h 39m
estimated nonstop flight time
+7h
time difference · heading northeast
See live IAD→SJY fares Phone-only fares on this route — call free
Flight time details
4,169 miles nonstop takes roughly 8h 39m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 7-hour time gain when reading arrival times on your ticket.
The two airports
- IAD — Washington Dulles International Airport · Washington, 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 IAD
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 IAD from SJY?
The flight distance from Washington (IAD) to Seinäjoki / Ilmajoki (SJY) is 4,169 miles (6,710 km, 3,623 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from IAD to SJY?
A nonstop flight takes about 8h 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 Washington and Seinäjoki / Ilmajoki?
Seinäjoki / Ilmajoki is 7 hours ahead of Washington.
What is the cheapest way to fly from IAD to SJY?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on IAD–SJY that never appear on search engines, with no booking fees.