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ASU to BFI: distance & flight time
Asuncion (Silvio Pettirossi International Airport) → Seattle (Boeing Field King County International Airport)
6,434 mi
10,354 km · 5,591 nm
13h 5m
estimated nonstop flight time
-4h
time difference · heading northwest
See live ASU→BFI fares Phone-only fares on this route — call free
Flight time details
6,434 miles nonstop takes roughly 13h 5m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 4-hour time set-back when reading arrival times on your ticket.
The two airports
- ASU — Silvio Pettirossi International Airport · Asuncion, Paraguay
- BFI — Boeing Field King County 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 ASU
- FMA · Formosa Airport80 mi away
- CIO · Teniente Col Carmelo Peralta Airport124 mi away
- PIL · Carlos Miguel Gimenez Airport124 mi away
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
Frequently asked questions
How far is ASU from BFI?
The flight distance from Asuncion (ASU) to Seattle (BFI) is 6,434 miles (10,354 km, 5,591 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ASU to BFI?
A nonstop flight takes about 13h 5m 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 Asuncion and Seattle?
Seattle is 4 hours behind Asuncion.
What is the cheapest way to fly from ASU to BFI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ASU–BFI that never appear on search engines, with no booking fees.