Are there nonstop flights from Ontario (ONT) to West Palm Beach (DJT)?

No. The fastest connection is via Houston, about 5h 19m of total flying time.

What is the fastest connection from Ontario (ONT) to West Palm Beach (DJT)?

via Houston ≈ 5h 19m, via Dallas-Fort Worth ≈ 5h 20m, via Atlanta ≈ 5h 37m (estimated flying time, excluding layovers).

from 15,000 ANA miles, from 23,000 JAL miles (economy, one way, based on the published award charts).

Ontario International Airport (ONT) to President Donald J. Trump International Airport (DJT)・3,669 km

No nonstop flights. The fastest connection is via Houston (IAH), about 5h 19m of flying time (layover not included).

With milesANA 15,000 miles+ (via IAH)JAL 23,000 miles+ (via DFW)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

8 one-stop options, sorted by estimated flying time. Tap one to see the airlines on each leg and booking links.

Times are estimated from distance. Check schedules, frequency and availability with the airline or a booking site.