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ONT to HAN: distance & flight time
Ontario (Ontario International Airport) → Hanoi (Noi Bai International Airport)
7,669 mi
12,343 km · 6,664 nm
15h 30m
estimated nonstop flight time
+14h
time difference · heading northwest
See live ONT→HAN fares Phone-only fares on this route — call free
Flight time details
7,669 miles nonstop takes roughly 15h 30m 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
- HAN — Noi Bai International Airport · Hanoi, 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 HAN
- HPH · Cat Bi International Airport65 mi away
- SQH · Na-San Airport114 mi away
- NEU · Sam Neua Airport125 mi away
Frequently asked questions
How far is ONT from HAN?
The flight distance from Ontario (ONT) to Hanoi (HAN) is 7,669 miles (12,343 km, 6,664 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ONT to HAN?
A nonstop flight takes about 15h 30m 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 Hanoi?
Hanoi is 14 hours ahead of Ontario.
What is the cheapest way to fly from ONT to HAN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ONT–HAN that never appear on search engines, with no booking fees.