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ONT to DIN: distance & flight time
Ontario (Ontario International Airport) → Dienbienphu (Dien Bien Phu Airport)
7,767 mi
12,500 km · 6,749 nm
15h 42m
estimated nonstop flight time
+14h
time difference · heading northwest
See live ONT→DIN fares Phone-only fares on this route — call free
Flight time details
7,767 miles nonstop takes roughly 15h 42m 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
- DIN — Dien Bien Phu Airport · Dienbienphu, Vietnam
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 DIN
- SQH · Na-San Airport67 mi away
- PCQ · Boun Neau Airport73 mi away
- ODY · Oudomsay Airport82 mi away
- NEU · Sam Neua Airport96 mi away
Frequently asked questions
How far is ONT from DIN?
The flight distance from Ontario (ONT) to Dienbienphu (DIN) is 7,767 miles (12,500 km, 6,749 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ONT to DIN?
A nonstop flight takes about 15h 42m 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 Dienbienphu?
Dienbienphu is 14 hours ahead of Ontario.
What is the cheapest way to fly from ONT to DIN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ONT–DIN that never appear on search engines, with no booking fees.