Cheap flights from Ontario, California to Kona, Hawaii for only $296 roundtrip with United Airlines.
Also works in reverse.
DEPART:
Ontario, USA
ARRIVE:
Kona, USA
RETURN:
Ontario, USA
DATES:
Availability from April to May 2026
Ontario – Kona
14th-21st Apr
15th-21st Apr
21st-29th Apr
22nd-29th Apr
28th Apr – 5th May
28th Apr – 6th May
29th Apr – 5th May
29th Apr – 6th May
5th-12th May
6th-12th May
Kona – Ontario
21st-28th Apr
21st-29th Apr
29th Apr – 5th May
29th Apr – 6th May
5th-12th May
6th-12th May
and more…
STOPS:
San Francisco
AIRLINES:
United Airlines