Found 2 flights to ONT
Operated by United Airlines
10:05
LHR
20:36
One stop
22:41
ONT
Date: 2025-12-29
Via: SFO,ONT
Lowest Price
40,000 Miles
+ $228.25 USD Taxes
Operated by United Airlines
15:10
LHR
28:08
Multiple-stop
11:18
ONT
Date: 2026-01-08
Via: EWR,IAH,ONT
Lowest Price
40,000 Miles
+ $58.00 USD Taxes