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RIV to CAT: distance & flight time
Riverside (March ARB Airport) → Cascais (Cascais Airport)
5,624 mi
9,051 km · 4,887 nm
11h 30m
estimated nonstop flight time
+8h
time difference · heading northeast
See live RIV→CAT fares Phone-only fares on this route — call free
Flight time details
5,624 miles nonstop takes roughly 11h 30m 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
- RIV — March ARB Airport · Riverside, 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 RIV
- RAL · Riverside Municipal Airport12 mi away
- SBD · San Bernardino International Airport15 mi away
- RBK · French Valley Airport22 mi away
- ONT · Ontario International Airport23 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 RIV from CAT?
The flight distance from Riverside (RIV) to Cascais (CAT) is 5,624 miles (9,051 km, 4,887 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from RIV to CAT?
A nonstop flight takes about 11h 30m 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 Riverside and Cascais?
Cascais is 8 hours ahead of Riverside.
What is the cheapest way to fly from RIV to CAT?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on RIV–CAT that never appear on search engines, with no booking fees.