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PSM to MCS: distance & flight time
Portsmouth (Portsmouth International at Pease Airport) → Monte Caseros (Monte Caseros Airport)
5,137 mi
8,266 km · 4,464 nm
10h 32m
estimated nonstop flight time
+1h
time difference · heading south
See live PSM→MCS fares Phone-only fares on this route — call free
Flight time details
5,137 miles nonstop takes roughly 10h 32m gate to gate, flying south. 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
- PSM — Portsmouth International at Pease Airport · Portsmouth, United States
- MCS — Monte Caseros Airport · Monte Caseros, 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 PSM
- BOS · General Edward Lawrence Logan International Airport50 mi away
- LWM · Lawrence Municipal Airport29 mi away
- MHT · Manchester-Boston Regional Airport33 mi away
- BVY · Beverly Municipal Airport34 mi away
Near MCS
- UZU · Curuzu Cuatia Airport40 mi away
- URG · Rubem Berta Airport49 mi away
- AOL · Paso De Los Libres Airport50 mi away
- ATI · Artigas International Airport68 mi away
Frequently asked questions
How far is PSM from MCS?
The flight distance from Portsmouth (PSM) to Monte Caseros (MCS) is 5,137 miles (8,266 km, 4,464 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from PSM to MCS?
A nonstop flight takes about 10h 32m 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 Portsmouth and Monte Caseros?
Monte Caseros is 1 hour ahead of Portsmouth.
What is the cheapest way to fly from PSM to MCS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on PSM–MCS that never appear on search engines, with no booking fees.