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CAT to SDU: distance & flight time
Cascais (Cascais Airport) → Rio De Janeiro (Santos Dumont Airport)
4,788 mi
7,705 km · 4,160 nm
9h 51m
estimated nonstop flight time
-4h
time difference · heading southwest
See live CAT→SDU fares Phone-only fares on this route — call free
Flight time details
4,788 miles nonstop takes roughly 9h 51m gate to gate, flying southwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 4-hour time set-back when reading arrival times on your ticket.
The two airports
- CAT — Cascais Airport · Cascais, Portugal
- 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 CAT
- LIS · Humberto Delgado Airport (Lisbon Portela Airport)12 mi away
- AVR · Alverca Air Base21 mi away
- QLR · Monte Real Air Base80 mi away
- BYJ · Beja Airport / Airbase89 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 CAT from SDU?
The flight distance from Cascais (CAT) to Rio De Janeiro (SDU) is 4,788 miles (7,705 km, 4,160 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from CAT to SDU?
A nonstop flight takes about 9h 51m 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 Cascais and Rio De Janeiro?
Rio De Janeiro is 4 hours behind Cascais.
What is the cheapest way to fly from CAT to SDU?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on CAT–SDU that never appear on search engines, with no booking fees.