https://community.virginmedia.com/discussions/Virgin_TV_360/whats-the-cheapest-day-to-book-flights-on-southwest/5614055 https://community.virginmedia.com/discussions/Virgin_TV_360/whats-the-cheapest-day-to-book-flights-on-southwest/5614055 https://community.virginmedia.com/discussions/Virgin_TV_360/whats-the-cheapest-day-to-book-flights-on-southwest/5614055