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GTF to PSS: distance & flight time
Great Falls (Great Falls International Airport) → Posadas (Libertador Gral D Jose De San Martin Airport)
6,212 mi
9,997 km · 5,398 nm
12h 39m
estimated nonstop flight time
+3h
time difference · heading southeast
See live GTF→PSS fares Phone-only fares on this route — call free
Flight time details
6,212 miles nonstop takes roughly 12h 39m gate to gate, flying southeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 3-hour time gain when reading arrival times on your ticket.
The two airports
- GTF — Great Falls International Airport · Great Falls, 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 GTF
- HLN · Helena Regional Airport67 mi away
- CTB · Cut Bank International Airport91 mi away
- LWT · Lewistown Municipal Airport94 mi away
- HVR · Havre City County Airport104 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 GTF from PSS?
The flight distance from Great Falls (GTF) to Posadas (PSS) is 6,212 miles (9,997 km, 5,398 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GTF to PSS?
A nonstop flight takes about 12h 39m 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 Great Falls and Posadas?
Posadas is 3 hours ahead of Great Falls.
What is the cheapest way to fly from GTF to PSS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GTF–PSS that never appear on search engines, with no booking fees.