Https://patch.com/california/losaltos/calendar/event/20250207/d20a7a5b-a5f6-43b5-83f1-1830cd40898c/--what-is-the-best-day-of-the-week-to-book-delta-flights https://patch.com/california/losaltos/calendar/event/20250207/d20a7a5b-a5f6-43b5-83f1-1830cd40898c/--what-is-the-best-day-of-the-week-to-book-delta-flights