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Summer flights from London, UK to Ontario, California for only £442 roundtrip with United Airlines.
DEPART:
London, UK
ARRIVE:
Ontario, USA
RETURN:
London, UK
DATES:
Availability from June to July 2026
Example dates:
25th Jun – 3rd Jul
25th Jun – 4th Jul
25th Jun – 6th Jul
25th Jun – 7th Jul
26th Jun – 3rd Jul
26th Jun – 4th Jul
26th Jun – 6th Jul
26th Jun – 7th Jul
27th Jun – 4th Jul
27th Jun – 6th Jul
27th Jun – 7th Jul
27th Jun – 9th Jul
29th Jun – 6th Jul
29th Jun – 7th Jul
29th Jun – 9th Jul
29th Jun – 11th Jul
30th Jun – 7th Jul
30th Jun – 9th Jul
30th Jun – 11th Jul
30th Jun – 12th Jul
2nd-9th Jul
2nd-11th Jul
2nd-12th Jul
2nd-13th Jul
2nd-14th Jul
3rd-13th Jul
4th-11th Jul
4th-12th Jul
4th-13th Jul
4th-14th Jul
4th-15th Jul
4th-16th Jul
7th-14th Jul
7th-15th Jul
7th-16th Jul
7th-17th Jul
7th-18th Jul
7th-19th Jul
8th-15th Jul
8th-17th Jul
8th-19th Jul
8th-20th Jul
9th-17th Jul
9th-18th Jul
9th-19th Jul
9th-20th Jul
9th-21st Jul
and more…
STOPS:
Denver
AIRLINES:
United Airlines
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