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OSP to SEA: distance & flight time
Slupsk (Redzikowo Air Base) → Seattle (Seattle Tacoma International Airport)
5,007 mi
8,058 km · 4,351 nm
10h 17m
estimated nonstop flight time
-9h
time difference · heading northwest
See live OSP→SEA fares Phone-only fares on this route — call free
Flight time details
5,007 miles nonstop takes roughly 10h 17m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 9-hour time set-back when reading arrival times on your ticket.
The two airports
- OSP — Redzikowo Air Base · Slupsk, Poland
- SEA — Seattle Tacoma International Airport · Seattle, United States
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 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
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
Frequently asked questions
How far is OSP from SEA?
The flight distance from Slupsk (OSP) to Seattle (SEA) 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 OSP to SEA?
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 Slupsk and Seattle?
Seattle is 9 hours behind Slupsk.
What is the cheapest way to fly from OSP to SEA?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OSP–SEA that never appear on search engines, with no booking fees.