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IAD to SDU: distance & flight time
Washington (Washington Dulles International Airport) → Rio De Janeiro (Santos Dumont Airport)
4,815 mi
7,749 km · 4,184 nm
9h 54m
estimated nonstop flight time
+1h
time difference · heading southeast
See live IAD→SDU fares Phone-only fares on this route — call free
Flight time details
4,815 miles nonstop takes roughly 9h 54m gate to gate, flying southeast. 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
- 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 IAD
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 IAD from SDU?
The flight distance from Washington (IAD) to Rio De Janeiro (SDU) is 4,815 miles (7,749 km, 4,184 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from IAD to SDU?
A nonstop flight takes about 9h 54m 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 Rio De Janeiro?
Rio De Janeiro is 1 hour ahead of Washington.
What is the cheapest way to fly from IAD to SDU?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on IAD–SDU that never appear on search engines, with no booking fees.