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MSO to PSS: distance & flight time
Missoula (Missoula International Airport) → Posadas (Libertador Gral D Jose De San Martin Airport)
6,280 mi
10,107 km · 5,457 nm
12h 47m
estimated nonstop flight time
+3h
time difference · heading southeast
See live MSO→PSS fares Phone-only fares on this route — call free
Flight time details
6,280 miles nonstop takes roughly 12h 47m 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
- MSO — Missoula International Airport · Missoula, 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 MSO
- FCA · Glacier Park International Airport97 mi away
- BTM · Bert Mooney Airport101 mi away
- HLN · Helena Regional Airport102 mi away
- SMN · Lemhi County Airport124 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 MSO from PSS?
The flight distance from Missoula (MSO) to Posadas (PSS) is 6,280 miles (10,107 km, 5,457 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from MSO to PSS?
A nonstop flight takes about 12h 47m 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 Missoula and Posadas?
Posadas is 3 hours ahead of Missoula.
What is the cheapest way to fly from MSO to PSS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on MSO–PSS that never appear on search engines, with no booking fees.