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OKM to CAT: distance & flight time
Okmulgee (Okmulgee Regional Airport) → Cascais (Cascais Airport)
4,579 mi
7,369 km · 3,979 nm
9h 27m
estimated nonstop flight time
+6h
time difference · heading northeast
See live OKM→CAT fares Phone-only fares on this route — call free
Flight time details
4,579 miles nonstop takes roughly 9h 27m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 6-hour time gain when reading arrival times on your ticket.
The two airports
- OKM — Okmulgee Regional Airport · Okmulgee, 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 OKM
- RVS · Richard Lloyd Jones Jr Airport26 mi away
- TUL · Tulsa International Airport37 mi away
- CUH · Cushing Municipal Airport50 mi away
- MLC · Mc Alester Regional Airport55 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 OKM from CAT?
The flight distance from Okmulgee (OKM) to Cascais (CAT) is 4,579 miles (7,369 km, 3,979 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OKM to CAT?
A nonstop flight takes about 9h 27m 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 Okmulgee and Cascais?
Cascais is 6 hours ahead of Okmulgee.
What is the cheapest way to fly from OKM to CAT?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OKM–CAT that never appear on search engines, with no booking fees.