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BFI to OSR: distance & flight time
Seattle (Boeing Field King County International Airport) → Ostrava (Ostrava Leos Janáček Airport)
5,316 mi
8,555 km · 4,620 nm
10h 53m
estimated nonstop flight time
+9h
time difference · heading northeast
See live BFI→OSR fares Phone-only fares on this route — call free
Flight time details
5,316 miles nonstop takes roughly 10h 53m 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
- BFI — Boeing Field King County International Airport · Seattle, United States
- OSR — Ostrava Leos Janáček Airport · Ostrava, Czech Republic
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 BFI
- SEA · Seattle Tacoma International Airport6 mi away
- RNT · Renton Municipal Airport5 mi away
- PWT · Bremerton National Airport22 mi away
- TIW · Tacoma Narrows Airport22 mi away
Near OSR
- PRV · Přerov Air Base37 mi away
- ILZ · Žilina Airport39 mi away
- UHE · Kunovice Airport55 mi away
- KTW · Katowice International Airport69 mi away
Frequently asked questions
How far is BFI from OSR?
The flight distance from Seattle (BFI) to Ostrava (OSR) is 5,316 miles (8,555 km, 4,620 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from BFI to OSR?
A nonstop flight takes about 10h 53m 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 Ostrava?
Ostrava is 9 hours ahead of Seattle.
What is the cheapest way to fly from BFI to OSR?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on BFI–OSR that never appear on search engines, with no booking fees.