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CAT to OSH: distance & flight time
Cascais (Cascais Airport) → Oshkosh (Wittman Regional Airport)
3,962 mi
6,376 km · 3,443 nm
8h 14m
estimated nonstop flight time
-6h
time difference · heading northwest
See live CAT→OSH fares Phone-only fares on this route — call free
Flight time details
3,962 miles nonstop takes roughly 8h 14m 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
- OSH — Wittman Regional Airport · Oshkosh, 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 OSH
- FLD · Fond du Lac County Airport15 mi away
- ATW · Appleton International Airport19 mi away
- SBM · Sheboygan County Memorial Airport38 mi away
- GRB · Austin Straubel International Airport41 mi away
Frequently asked questions
How far is CAT from OSH?
The flight distance from Cascais (CAT) to Oshkosh (OSH) is 3,962 miles (6,376 km, 3,443 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from CAT to OSH?
A nonstop flight takes about 8h 14m 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 Oshkosh?
Oshkosh is 6 hours behind Cascais.
What is the cheapest way to fly from CAT to OSH?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on CAT–OSH that never appear on search engines, with no booking fees.