There are 31 direct nonstop flight destinations from Ontario Ontario International Airport (ONT), served by 11 airlines. 25 are domestic routes and 6 are international non-stop flights. The longest direct flight goes to Taipei (TPE), with a non-stop flight time of 14h 40m.
Route data last updated: May 27, 2026
Most Popular from Ontario
Busiest routes by number of airlines
🍃 Lowest-carbon direct flights from Ontario
Shortest nonstop routes from ONT — direct flights cut takeoff/climb fuel burn vs. taking a layover
Airlines from Ontario
About Ontario International Airport (ONT)
Frequently Asked Questions
How many direct flights are there from Ontario (ONT)?
31 nonstop destinations from Ontario (ONT), across 11 airlines. 25 domestic, 6 international.
Which airlines fly from Ontario (ONT)?
11 airlines fly nonstop from Ontario (ONT). Full list is in the airline section above.
What is the longest nonstop flight from Ontario (ONT)?
Taipei (TPE) — 6,830 miles, about 14h 40m.
Can I fly internationally from Ontario (ONT)?
Yes — 6 international nonstop destinations from ONT.
How early should I arrive at Ontario International Airport?
2 hours for domestic, 3 hours for international. Standard advice for check-in, security, and immigration.
What timezone is Ontario (ONT) in?
America/Los_Angeles.