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IAD to MCS: distance & flight time
Washington (Washington Dulles International Airport) → Monte Caseros (Monte Caseros Airport)
4,950 mi
7,965 km · 4,301 nm
10h 10m
estimated nonstop flight time
+1h
time difference · heading south
See live IAD→MCS fares Phone-only fares on this route — call free
Flight time details
4,950 miles nonstop takes roughly 10h 10m 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
- IAD — Washington Dulles International Airport · Washington, 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 IAD
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 IAD from MCS?
The flight distance from Washington (IAD) to Monte Caseros (MCS) is 4,950 miles (7,965 km, 4,301 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from IAD to MCS?
A nonstop flight takes about 10h 10m 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 Washington and Monte Caseros?
Monte Caseros is 1 hour ahead of Washington.
What is the cheapest way to fly from IAD to MCS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on IAD–MCS that never appear on search engines, with no booking fees.