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ISM to PSS: distance & flight time
Kissimmee (Kissimmee Gateway Airport) → Posadas (Libertador Gral D Jose De San Martin Airport)
4,201 mi
6,760 km · 3,650 nm
8h 42m
estimated nonstop flight time
+1h
time difference · heading southeast
See live ISM→PSS fares Phone-only fares on this route — call free
Flight time details
4,201 miles nonstop takes roughly 8h 42m gate to gate, flying southeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time gain when reading arrival times on your ticket.
The two airports
- ISM — Kissimmee Gateway Airport · Kissimmee, 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 ISM
- MCO · Orlando International Airport12 mi away
- ORL · Orlando Executive Airport19 mi away
- GIF · Winter Haven Regional Airport - Gilbert Field25 mi away
- TPA · Tampa International Airport70 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 ISM from PSS?
The flight distance from Kissimmee (ISM) to Posadas (PSS) is 4,201 miles (6,760 km, 3,650 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ISM to PSS?
A nonstop flight takes about 8h 42m 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 Kissimmee and Posadas?
Posadas is 1 hour ahead of Kissimmee.
What is the cheapest way to fly from ISM to PSS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ISM–PSS that never appear on search engines, with no booking fees.