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
Cheap flights from London, UK to Californian cities from only £344 roundtrip with Swiss International Air Lines and United Airlines.
Fly to:
San Francisco: £344-£346
Los Angeles: £346
Burbank: £373-£386
Ontario: £377-£386
Santa Ana: £377-£386
DEPART:
London, UK
ARRIVE:
San Francisco/Los Angeles/Burbank/Ontario/Santa Ana, USA
RETURN:
London, UK
DATES:
Availability from March to April 2026
London – San Francisco: £344-£346
4th-11th Mar
7th-15th Mar
8th-16th Mar
9th-16th Mar
9th-17th Mar
10th-17th Mar
10th-18th Mar
11th-18th Mar
17th-24th Mar
17th-25th Mar
18th-25th Mar
London – Los Angeles: £346
4th-11th Mar
7th-15th Mar
8th-15th Mar
8th-16th Mar
9th-16th Mar
9th-17th Mar
10th-17th Mar
10th-18th Mar
11th-18th Mar
15th-23rd Mar
16th-23rd Mar
16th-24th Mar
17th-24th Mar
London – Burbank: £373-£386
4th-11th Mar
7th-15th Mar
8th-15th Mar
8th-16th Mar
16th-24th Mar
18th-25th Mar
24th-31st Mar
18th-25th Apr
18th-26th Apr
London – Ontario: £377-£386
8th-15th Mar
8th-16th Mar
9th-16th Mar
9th-17th Mar
10th-17th Mar
10th-18th Mar
15th-23rd Mar
16th-23rd Mar
16th-24th Mar
17th-24th Mar
17th-25th Mar
18th-25th Mar
London – Santa Ana: £377-£386
4th-11th Mar
6th-14th Mar
7th-14th Mar
8th-16th Mar
9th-16th Mar
10th-17th Mar
10th-18th Mar
15th-23rd Mar
16th-23rd Mar
16th-24th Mar
23rd-30th Mar
23rd-31st Mar
24th-31st Mar
and more…
STOPS:
Zurich (outgoing only)
AIRLINES:
Swiss International Air Lines
United Airlines
Cheap flights from Seoul, South Korea to Californian cities for only $490 USD roundtrip with United Airlines.
Fly to:
Burbank: $490 USD
Ontario: $490 USD
Santa Barbara: $490 USD
DEPART:
Seoul, South Korea
ARRIVE:
Burbank/Ontario/Santa Barbara, USA
RETURN:
Seoul, South Korea
DATES:
Availability from February to March 2026
Seoul – Burbank: $490 USD
25th Feb – 4th Mar
25th Feb – 5th Mar
26th Feb – 5th Mar
26th Feb – 7th Mar
27th Feb – 7th Mar
27th Feb – 8th Mar
28th Feb – 7th Mar
28th Feb – 8th Mar
28th Feb – 9th Mar
1st-8th Mar
1st-9th Mar
1st-10th Mar
2nd-9th Mar
2nd-10th Mar
2nd-11th Mar
3rd-10th Mar
3rd-11th Mar
4th-11th Mar
5th-13th Mar
7th-16th Mar
8th-16th Mar
8th-17th Mar
9th-16th Mar
Seoul – Ontario: $490 USD
25th Feb – 4th Mar
25th Feb – 5th Mar
26th Feb – 5th Mar
27th Feb – 8th Mar
28th Feb – 8th Mar
28th Feb – 9th Mar
1st-8th Mar
1st-9th Mar
1st-10th Mar
2nd-9th Mar
2nd-10th Mar
2nd-11th Mar
3rd-10th Mar
3rd-11th Mar
4th-11th Mar
5th-13th Mar
7th-15th Mar
7th-16th Mar
8th-16th Mar
8th-17th Mar
9th-16th Mar
9th-17th Mar
Seoul – Santa Barbara: $490 USD
25th Feb – 4th Mar
25th Feb – 5th Mar
26th Feb – 5th Mar
27th Feb – 8th Mar
28th Feb – 8th Mar
28th Feb – 9th Mar
1st-8th Mar
1st-9th Mar
1st-10th Mar
2nd-9th Mar
2nd-10th Mar
2nd-11th Mar
3rd-10th Mar
3rd-11th Mar
4th-11th Mar
7th-16th Mar
8th-16th Mar
8th-17th Mar
9th-16th Mar
9th-17th Mar
10th-17th Mar
and more…
STOPS:
San Francisco
AIRLINES:
United Airlines