Need help booking?
Unpublished phone-only deals available
APA to CAT: distance & flight time
Denver (Centennial Airport) → Cascais (Cascais Airport)
4,841 mi
7,791 km · 4,207 nm
9h 58m
estimated nonstop flight time
+7h
time difference · heading northeast
See live APA→CAT fares Phone-only fares on this route — call free
Flight time details
4,841 miles nonstop takes roughly 9h 58m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 7-hour time gain when reading arrival times on your ticket.
The two airports
- APA — Centennial Airport · Denver, 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 APA
- DEN · Denver International Airport22 mi away
- BFK · Buckley Air Force Base10 mi away
- BJC · Rocky Mountain Metropolitan Airport27 mi away
- WBU · Boulder Municipal Airport38 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 APA from CAT?
The flight distance from Denver (APA) to Cascais (CAT) is 4,841 miles (7,791 km, 4,207 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from APA to CAT?
A nonstop flight takes about 9h 58m 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 Denver and Cascais?
Cascais is 7 hours ahead of Denver.
What is the cheapest way to fly from APA to CAT?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on APA–CAT that never appear on search engines, with no booking fees.