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SEA to OSP: distance & flight time
Seattle (Seattle Tacoma International Airport) → Slupsk (Redzikowo Air Base)
5,007 mi
8,058 km · 4,351 nm
10h 17m
estimated nonstop flight time
+9h
time difference · heading northeast
See live SEA→OSP fares Phone-only fares on this route — call free
Flight time details
5,007 miles nonstop takes roughly 10h 17m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 9-hour time gain when reading arrival times on your ticket.
The two airports
- SEA — Seattle Tacoma International Airport · Seattle, United States
- OSP — Redzikowo Air Base · Slupsk, Poland
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 OSP
- GDN · Gdańsk Lech Wałęsa Airport55 mi away
- QYD · Oksywie Military Air Base57 mi away
- RNN · Bornholm Airport102 mi away
- BZG · Bydgoszcz Ignacy Jan Paderewski Airport102 mi away
Frequently asked questions
How far is SEA from OSP?
The flight distance from Seattle (SEA) to Slupsk (OSP) is 5,007 miles (8,058 km, 4,351 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SEA to OSP?
A nonstop flight takes about 10h 17m 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 Slupsk?
Slupsk is 9 hours ahead of Seattle.
What is the cheapest way to fly from SEA to OSP?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SEA–OSP that never appear on search engines, with no booking fees.