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CUN to SDU: distance & flight time
Cancun (Cancún International Airport) → Rio De Janeiro (Santos Dumont Airport)
4,229 mi
6,806 km · 3,675 nm
8h 46m
estimated nonstop flight time
+2h
time difference · heading southeast
See live CUN→SDU fares Phone-only fares on this route — call free
Flight time details
4,229 miles nonstop takes roughly 8h 46m 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
- CUN — Cancún International Airport · Cancun, Mexico
- 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 CUN
- ISJ · Isla Mujeres Airport17 mi away
- CZM · Cozumel International Airport36 mi away
- CZA · Chichen Itza International Airport105 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 CUN from SDU?
The flight distance from Cancun (CUN) to Rio De Janeiro (SDU) is 4,229 miles (6,806 km, 3,675 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from CUN to SDU?
A nonstop flight takes about 8h 46m 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 Cancun and Rio De Janeiro?
Rio De Janeiro is 2 hours ahead of Cancun.
What is the cheapest way to fly from CUN to SDU?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on CUN–SDU that never appear on search engines, with no booking fees.