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SDF to CAT: distance & flight time

Louisville (Louisville International Standiford Field) → Cascais (Cascais Airport)

4,002 mi
6,441 km · 3,478 nm
8h 19m
estimated nonstop flight time
+5h
time difference · heading northeast
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Flight time details

4,002 miles nonstop takes roughly 8h 19m 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.

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The two airports

Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.

Alternate airports can cut this fare

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Frequently asked questions

How far is SDF from CAT?

The flight distance from Louisville (SDF) to Cascais (CAT) is 4,002 miles (6,441 km, 3,478 nautical miles), measured along the great-circle route airlines actually fly.

How long is the flight from SDF to CAT?

A nonstop flight takes about 8h 19m 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 SDF to CAT?

Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SDF–CAT that never appear on search engines, with no booking fees.
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