It’s generally more expensive to depart on a Friday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.
Users have found that booking a flight from Billings to Oakland at least 61 days early can save you up to 99% on average compared to booking a flight this week. If booking 61 days before your flight isn’t an option for you, users have found flights from Billings to Oakland for as little as $416 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $638 for flights departing within the next 3 days.
It’s typically best to fly out from Billings to Oakland in the evening. Doing so could potentially save you 16% on the flight price compared to flying in the morning, which is usually more expensive.