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KDT to ONT: distance & flight time
Nakhon Pathom (Kamphaeng Saen Airport) → Ontario (Ontario International Airport)
8,295 mi
13,350 km · 7,208 nm
16h 44m
estimated nonstop flight time
-14h
time difference · heading northeast
See live KDT→ONT fares Phone-only fares on this route — call free
Flight time details
8,295 miles nonstop takes roughly 16h 44m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 14-hour time set-back when reading arrival times on your ticket.
The two airports
- KDT — Kamphaeng Saen Airport · Nakhon Pathom, Thailand
- ONT — Ontario International Airport · Ontario, United States
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 KDT
- DMK · Don Mueang International Airport48 mi away
- BKK · Suvarnabhumi Airport63 mi away
- TKH · Takhli Airport85 mi away
- HHQ · Hua Hin Airport101 mi away
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
Frequently asked questions
How far is KDT from ONT?
The flight distance from Nakhon Pathom (KDT) to Ontario (ONT) is 8,295 miles (13,350 km, 7,208 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KDT to ONT?
A nonstop flight takes about 16h 44m 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 Nakhon Pathom and Ontario?
Ontario is 14 hours behind Nakhon Pathom.
What is the cheapest way to fly from KDT to ONT?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KDT–ONT that never appear on search engines, with no booking fees.