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CAT to FSD: distance & flight time
Cascais (Cascais Airport) → Sioux Falls (Joe Foss Field Airport)
4,339 mi
6,983 km · 3,771 nm
8h 59m
estimated nonstop flight time
-6h
time difference · heading northwest
See live CAT→FSD fares Phone-only fares on this route — call free
Flight time details
4,339 miles nonstop takes roughly 8h 59m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 6-hour time set-back when reading arrival times on your ticket.
The two airports
- CAT — Cascais Airport · Cascais, Portugal
- FSD — Joe Foss Field Airport · Sioux Falls, United States
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 FSD
- YKN · Chan Gurney Municipal Airport56 mi away
- MHE · Mitchell Municipal Airport66 mi away
- SPW · Spencer Municipal Airport82 mi away
- SUX · Sioux Gateway Col. Bud Day Field83 mi away
Frequently asked questions
How far is CAT from FSD?
The flight distance from Cascais (CAT) to Sioux Falls (FSD) is 4,339 miles (6,983 km, 3,771 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from CAT to FSD?
A nonstop flight takes about 8h 59m 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 Sioux Falls?
Sioux Falls is 6 hours behind Cascais.
What is the cheapest way to fly from CAT to FSD?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on CAT–FSD that never appear on search engines, with no booking fees.