Need help booking?
Unpublished phone-only deals available
ART to CAT: distance & flight time
Watertown (Watertown International Airport) → Cascais (Cascais Airport)
3,382 mi
5,442 km · 2,939 nm
7h 6m
estimated nonstop flight time
+5h
time difference · heading east
See live ART→CAT fares Phone-only fares on this route — call free
Flight time details
3,382 miles nonstop takes roughly 7h 6m gate to gate, flying east. 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
- ART — Watertown International Airport · Watertown, 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 ART
- YGK · Kingston Norman Rogers Airport33 mi away
- OGS · Ogdensburg International Airport55 mi away
- RME · Griffiss International Airport61 mi away
- SYR · Syracuse Hancock International Airport61 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 ART from CAT?
The flight distance from Watertown (ART) to Cascais (CAT) is 3,382 miles (5,442 km, 2,939 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ART to CAT?
A nonstop flight takes about 7h 6m 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 Watertown and Cascais?
Cascais is 5 hours ahead of Watertown.
What is the cheapest way to fly from ART to CAT?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ART–CAT that never appear on search engines, with no booking fees.