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POA to ISN: distance & flight time
Porto Alegre (Salgado Filho Airport) → Williston (Sloulin Field International Airport)
6,301 mi
10,140 km · 5,475 nm
12h 49m
estimated nonstop flight time
-2h
time difference · heading northwest
See live POA→ISN fares Phone-only fares on this route — call free
Flight time details
6,301 miles nonstop takes roughly 12h 49m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2-hour time set-back when reading arrival times on your ticket.
The two airports
- POA — Salgado Filho Airport · Porto Alegre, Brazil
- ISN — Sloulin Field International Airport · Williston, 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 POA
- CXJ · Hugo Cantergiani Regional Airport55 mi away
- CCM · Diomício Freitas Airport137 mi away
- PET · João Simões Lopes Neto International Airport137 mi away
- PFB · Lauro Kurtz Airport140 mi away
Near ISN
- SDY · Sidney - Richland Regional Airport41 mi away
- YEN · Estevan Airport78 mi away
- OLF · L M Clayton Airport89 mi away
- GDV · Dawson Community Airport90 mi away
Frequently asked questions
How far is POA from ISN?
The flight distance from Porto Alegre (POA) to Williston (ISN) is 6,301 miles (10,140 km, 5,475 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from POA to ISN?
A nonstop flight takes about 12h 49m 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 Porto Alegre and Williston?
Williston is 2 hours behind Porto Alegre.
What is the cheapest way to fly from POA to ISN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on POA–ISN that never appear on search engines, with no booking fees.