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SEE to CAT: distance & flight time
El Cajon (Gillespie Field) → Cascais (Cascais Airport)
5,660 mi
9,108 km · 4,918 nm
11h 34m
estimated nonstop flight time
+8h
time difference · heading northeast
See live SEE→CAT fares Phone-only fares on this route — call free
Flight time details
5,660 miles nonstop takes roughly 11h 34m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 8-hour time gain when reading arrival times on your ticket.
The two airports
- SEE — Gillespie Field · El Cajon, 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 SEE
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 SEE from CAT?
The flight distance from El Cajon (SEE) to Cascais (CAT) is 5,660 miles (9,108 km, 4,918 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SEE to CAT?
A nonstop flight takes about 11h 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 El Cajon and Cascais?
Cascais is 8 hours ahead of El Cajon.
What is the cheapest way to fly from SEE to CAT?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SEE–CAT that never appear on search engines, with no booking fees.