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GAI to MCS: distance & flight time
Gaithersburg (Montgomery County Airpark) → Monte Caseros (Monte Caseros Airport)
4,959 mi
7,982 km · 4,310 nm
10h 11m
estimated nonstop flight time
+1h
time difference · heading south
See live GAI→MCS fares Phone-only fares on this route — call free
Flight time details
4,959 miles nonstop takes roughly 10h 11m 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
- GAI — Montgomery County Airpark · Gaithersburg, 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 GAI
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 GAI from MCS?
The flight distance from Gaithersburg (GAI) to Monte Caseros (MCS) is 4,959 miles (7,982 km, 4,310 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GAI to MCS?
A nonstop flight takes about 10h 11m 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 Gaithersburg and Monte Caseros?
Monte Caseros is 1 hour ahead of Gaithersburg.
What is the cheapest way to fly from GAI to MCS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GAI–MCS that never appear on search engines, with no booking fees.