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BFI to PSS: distance & flight time
Seattle (Boeing Field King County International Airport) → Posadas (Libertador Gral D Jose De San Martin Airport)
6,609 mi
10,637 km · 5,743 nm
13h 26m
estimated nonstop flight time
+4h
time difference · heading southeast
See live BFI→PSS fares Phone-only fares on this route — call free
Flight time details
6,609 miles nonstop takes roughly 13h 26m gate to gate, flying southeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 4-hour time gain when reading arrival times on your ticket.
The two airports
- BFI — Boeing Field King County International Airport · Seattle, United States
- PSS — Libertador Gral D Jose De San Martin Airport · Posadas, Argentina
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 PSS
- ENO · Encarnación Airport14 mi away
- AYO · Juan De Ayolas Airport54 mi away
- SRA · Santa Rosa Airport96 mi away
- ELO · El Dorado Airport110 mi away
Frequently asked questions
How far is BFI from PSS?
The flight distance from Seattle (BFI) to Posadas (PSS) is 6,609 miles (10,637 km, 5,743 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from BFI to PSS?
A nonstop flight takes about 13h 26m 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 Posadas?
Posadas is 4 hours ahead of Seattle.
What is the cheapest way to fly from BFI to PSS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on BFI–PSS that never appear on search engines, with no booking fees.