Need help booking?
Unpublished phone-only deals available
ONO to TNN: distance & flight time
Ontario (Ontario Municipal Airport) → Tainan (Tainan Airport)
6,565 mi
10,566 km · 5,705 nm
13h 20m
estimated nonstop flight time
+14h
time difference · heading northwest
See live ONO→TNN fares Phone-only fares on this route — call free
Flight time details
6,565 miles nonstop takes roughly 13h 20m 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
- ONO — Ontario Municipal Airport · Ontario, United States
- TNN — Tainan Airport · Tainan, Taiwan
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 ONO
- BOI · Boise Air Terminal/Gowen Field50 mi away
- BKE · Baker City Municipal Airport69 mi away
- MYL · McCall Municipal Airport75 mi away
- MUO · Mountain Home Air Force Base88 mi away
Near TNN
- PIF · Pingtung North Airport25 mi away
- KHH · Kaohsiung International Airport27 mi away
- CYI · Chiayi Airport37 mi away
- WOT · Wang-an Airport53 mi away
Frequently asked questions
How far is ONO from TNN?
The flight distance from Ontario (ONO) to Tainan (TNN) is 6,565 miles (10,566 km, 5,705 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ONO to TNN?
A nonstop flight takes about 13h 20m 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 Tainan?
Tainan is 14 hours ahead of Ontario.
What is the cheapest way to fly from ONO to TNN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ONO–TNN that never appear on search engines, with no booking fees.