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CAT to BOI: distance & flight time
Cascais (Cascais Airport) → Boise (Boise Air Terminal/Gowen Field)
5,148 mi
8,285 km · 4,474 nm
10h 34m
estimated nonstop flight time
-7h
time difference · heading northwest
See live CAT→BOI fares Phone-only fares on this route — call free
Flight time details
5,148 miles nonstop takes roughly 10h 34m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 7-hour time set-back when reading arrival times on your ticket.
The two airports
- CAT — Cascais Airport · Cascais, Portugal
- BOI — Boise Air Terminal/Gowen Field · Boise, 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 BOI
- MUO · Mountain Home Air Force Base40 mi away
- ONO · Ontario Municipal Airport50 mi away
- MYL · McCall Municipal Airport92 mi away
- SUN · Friedman Memorial Airport97 mi away
Frequently asked questions
How far is CAT from BOI?
The flight distance from Cascais (CAT) to Boise (BOI) is 5,148 miles (8,285 km, 4,474 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from CAT to BOI?
A nonstop flight takes about 10h 34m 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 Boise?
Boise is 7 hours behind Cascais.
What is the cheapest way to fly from CAT to BOI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on CAT–BOI that never appear on search engines, with no booking fees.