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ONT to KOP: distance & flight time
Ontario (Ontario International Airport) → Nakhon Phanom (Nakhon Phanom Airport)
7,926 mi
12,755 km · 6,887 nm
16h
estimated nonstop flight time
+14h
time difference · heading northwest
See live ONT→KOP fares Phone-only fares on this route — call free
Flight time details
7,926 miles nonstop takes roughly 16h gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 14-hour time gain when reading arrival times on your ticket.
The two airports
- ONT — Ontario International Airport · Ontario, United States
- KOP — Nakhon Phanom Airport · Nakhon Phanom, Thailand
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 KOP
- SNO · Sakon Nakhon Airport37 mi away
- ZVK · Savannakhet Airport58 mi away
- ROI · Roi Et Airport105 mi away
- VII · Vinh Airport115 mi away
Frequently asked questions
How far is ONT from KOP?
The flight distance from Ontario (ONT) to Nakhon Phanom (KOP) is 7,926 miles (12,755 km, 6,887 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ONT to KOP?
A nonstop flight takes about 16h 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 Nakhon Phanom?
Nakhon Phanom is 14 hours ahead of Ontario.
What is the cheapest way to fly from ONT to KOP?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ONT–KOP that never appear on search engines, with no booking fees.