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CAT to YSM: distance & flight time
Cascais (Cascais Airport) → Fort Smith (Fort Smith Airport)
4,340 mi
6,985 km · 3,772 nm
8h 59m
estimated nonstop flight time
-7h
time difference · heading northwest
See live CAT→YSM fares Phone-only fares on this route — call free
Flight time details
4,340 miles nonstop takes roughly 8h 59m 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
- YSM — Fort Smith Airport · Fort Smith, Canada
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 YSM
- YPY · Fort Chipewyan Airport92 mi away
- YFR · Fort Resolution Airport99 mi away
- YBE · Uranium City Airport125 mi away
- YHY · Hay River / Merlyn Carter Airport142 mi away
Frequently asked questions
How far is CAT from YSM?
The flight distance from Cascais (CAT) to Fort Smith (YSM) is 4,340 miles (6,985 km, 3,772 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from CAT to YSM?
A nonstop flight takes about 8h 59m 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 Fort Smith?
Fort Smith is 7 hours behind Cascais.
What is the cheapest way to fly from CAT to YSM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on CAT–YSM that never appear on search engines, with no booking fees.