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SEA to ASU: distance & flight time
Seattle (Seattle Tacoma International Airport) → Asuncion (Silvio Pettirossi International Airport)
6,431 mi
10,349 km · 5,588 nm
13h 5m
estimated nonstop flight time
+4h
time difference · heading southeast
See live SEA→ASU fares Phone-only fares on this route — call free
Flight time details
6,431 miles nonstop takes roughly 13h 5m 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
- SEA — Seattle Tacoma International Airport · Seattle, United States
- ASU — Silvio Pettirossi International Airport · Asuncion, Paraguay
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 ASU
- FMA · Formosa Airport80 mi away
- CIO · Teniente Col Carmelo Peralta Airport124 mi away
- PIL · Carlos Miguel Gimenez Airport124 mi away
Frequently asked questions
How far is SEA from ASU?
The flight distance from Seattle (SEA) to Asuncion (ASU) is 6,431 miles (10,349 km, 5,588 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SEA to ASU?
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 Seattle and Asuncion?
Asuncion is 4 hours ahead of Seattle.
What is the cheapest way to fly from SEA to ASU?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SEA–ASU that never appear on search engines, with no booking fees.