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LOU to CAT: distance & flight time
Louisville (Bowman Field) → Cascais (Cascais Airport)
3,997 mi
6,432 km · 3,473 nm
8h 18m
estimated nonstop flight time
+5h
time difference · heading northeast
See live LOU→CAT fares Phone-only fares on this route — call free
Flight time details
3,997 miles nonstop takes roughly 8h 18m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 5-hour time gain when reading arrival times on your ticket.
The two airports
- LOU — Bowman Field · Louisville, United States
- CAT — Cascais Airport · Cascais, Portugal
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 LOU
- SDF · Louisville International Standiford Field5 mi away
- FTK · Godman Army Air Field28 mi away
- FFT · Capital City Airport41 mi away
- LEX · Blue Grass Airport59 mi away
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
Frequently asked questions
How far is LOU from CAT?
The flight distance from Louisville (LOU) to Cascais (CAT) is 3,997 miles (6,432 km, 3,473 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from LOU to CAT?
A nonstop flight takes about 8h 18m 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 Louisville and Cascais?
Cascais is 5 hours ahead of Louisville.
What is the cheapest way to fly from LOU to CAT?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on LOU–CAT that never appear on search engines, with no booking fees.