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LMT to OPO: distance & flight time
Klamath Falls (Crater Lake-Klamath Regional Airport) → Porto (Francisco de Sá Carneiro Airport)
5,323 mi
8,567 km · 4,626 nm
10h 54m
estimated nonstop flight time
+8h
time difference · heading northeast
See live LMT→OPO fares Phone-only fares on this route — call free
Flight time details
5,323 miles nonstop takes roughly 10h 54m 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
- LMT — Crater Lake-Klamath Regional Airport · Klamath Falls, United States
- OPO — Francisco de Sá Carneiro Airport · Porto, 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 LMT
- MFR · Rogue Valley International Medford Airport60 mi away
- LKV · Lake County Airport68 mi away
- RDD · Redding Municipal Airport117 mi away
- CEC · Jack Mc Namara Field Airport131 mi away
Near OPO
- BGZ · Braga Municipal Aerodrome26 mi away
- VRL · Vila Real Airport50 mi away
- VSE · Aerodromo Goncalves Lobato (Viseu Airport)55 mi away
- VGO · Vigo Airport68 mi away
Frequently asked questions
How far is LMT from OPO?
The flight distance from Klamath Falls (LMT) to Porto (OPO) is 5,323 miles (8,567 km, 4,626 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from LMT to OPO?
A nonstop flight takes about 10h 54m 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 Klamath Falls and Porto?
Porto is 8 hours ahead of Klamath Falls.
What is the cheapest way to fly from LMT to OPO?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on LMT–OPO that never appear on search engines, with no booking fees.