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MGM to SDU: distance & flight time
MONTGOMERY (Montgomery Regional (Dannelly Field) Airport) → Rio De Janeiro (Santos Dumont Airport)
4,764 mi
7,666 km · 4,140 nm
9h 48m
estimated nonstop flight time
+2h
time difference · heading southeast
See live MGM→SDU fares Phone-only fares on this route — call free
Flight time details
4,764 miles nonstop takes roughly 9h 48m gate to gate, flying southeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2-hour time gain when reading arrival times on your ticket.
The two airports
- MGM — Montgomery Regional (Dannelly Field) Airport · MONTGOMERY, United States
- SDU — Santos Dumont Airport · Rio De Janeiro, Brazil
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 MGM
- MXF · Maxwell Air Force Base6 mi away
- SEM · Craig Field35 mi away
- TOI · Troy Municipal Airport at N Kenneth Campbell Field38 mi away
- ALX · Thomas C Russell Field49 mi away
Near SDU
- GIG · Rio Galeão – Tom Jobim International Airport9 mi away
- QNV · Aeroclube Airport22 mi away
- SNZ · Santa Cruz Air Force Base35 mi away
- CFB · Cabo Frio Airport69 mi away
Frequently asked questions
How far is MGM from SDU?
The flight distance from MONTGOMERY (MGM) to Rio De Janeiro (SDU) is 4,764 miles (7,666 km, 4,140 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from MGM to SDU?
A nonstop flight takes about 9h 48m 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 MONTGOMERY and Rio De Janeiro?
Rio De Janeiro is 2 hours ahead of MONTGOMERY.
What is the cheapest way to fly from MGM to SDU?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on MGM–SDU that never appear on search engines, with no booking fees.