Need help booking?
Unpublished phone-only deals available
ONT to EFL: distance & flight time
Ontario (Ontario International Airport) → Keffallinia (Kefallinia Airport)
6,772 mi
10,899 km · 5,885 nm
13h 45m
estimated nonstop flight time
+10h
time difference · heading northeast
See live ONT→EFL fares Phone-only fares on this route — call free
Flight time details
6,772 miles nonstop takes roughly 13h 45m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 10-hour time gain when reading arrival times on your ticket.
The two airports
- ONT — Ontario International Airport · Ontario, United States
- EFL — Kefallinia Airport · Keffallinia, Greece
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 ONT
- CCB · Cable Airport6 mi away
- CNO · Chino Airport6 mi away
- LAX · Los Angeles International Airport47 mi away
- RAL · Riverside Municipal Airport11 mi away
Near EFL
- ZTH · Zakynthos International Airport "Dionysios Solomos"33 mi away
- PYR · Andravida Air Base45 mi away
- GPA · Araxos Airport50 mi away
- AGQ · Agrinion Air Base57 mi away
Frequently asked questions
How far is ONT from EFL?
The flight distance from Ontario (ONT) to Keffallinia (EFL) is 6,772 miles (10,899 km, 5,885 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ONT to EFL?
A nonstop flight takes about 13h 45m 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 Ontario and Keffallinia?
Keffallinia is 10 hours ahead of Ontario.
What is the cheapest way to fly from ONT to EFL?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ONT–EFL that never appear on search engines, with no booking fees.