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ONT to ZBY: distance & flight time
Ontario (Ontario International Airport) → Sainyabuli (Sayaboury Airport)
7,937 mi
12,774 km · 6,897 nm
16h 2m
estimated nonstop flight time
—
time difference · heading northwest
See live ONT→ZBY fares Phone-only fares on this route — call free
Flight time details
7,937 miles nonstop takes roughly 16h 2m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- ONT — Ontario International Airport · Ontario, United States
- ZBY — Sayaboury Airport · Sainyabuli, Laos
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 ZBY
- LPQ · Luang Phabang International Airport54 mi away
- NNT · Nan Airport68 mi away
- XKH · Xieng Khouang Airport96 mi away
- ODY · Oudomsay Airport101 mi away
Frequently asked questions
How far is ONT from ZBY?
The flight distance from Ontario (ONT) to Sainyabuli (ZBY) is 7,937 miles (12,774 km, 6,897 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ONT to ZBY?
A nonstop flight takes about 16h 2m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
Are there nonstop flights from ONT to ZBY?
Nonstop service on ONT–ZBY depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 16h 2m nonstop estimate.
What is the cheapest way to fly from ONT to ZBY?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ONT–ZBY that never appear on search engines, with no booking fees.
Why are some ONT to ZBY fares phone-only?
Consolidator contracts let us sell certain ONT–ZBY tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.