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LWS to PSS: distance & flight time
Lewiston (Lewiston Nez Perce County Airport) → Posadas (Libertador Gral D Jose De San Martin Airport)
6,362 mi
10,239 km · 5,529 nm
12h 57m
estimated nonstop flight time
+4h
time difference · heading southeast
See live LWS→PSS fares Phone-only fares on this route — call free
Flight time details
6,362 miles nonstop takes roughly 12h 57m 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
- LWS — Lewiston Nez Perce County Airport · Lewiston, 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 LWS
- PUW · Pullman Moscow Regional Airport26 mi away
- ALW · Walla Walla Regional Airport64 mi away
- GEG · Spokane International Airport89 mi away
- LGD · La Grande/Union County Airport89 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 LWS from PSS?
The flight distance from Lewiston (LWS) to Posadas (PSS) is 6,362 miles (10,239 km, 5,529 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from LWS to PSS?
A nonstop flight takes about 12h 57m 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 Lewiston and Posadas?
Posadas is 4 hours ahead of Lewiston.
What is the cheapest way to fly from LWS to PSS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on LWS–PSS that never appear on search engines, with no booking fees.