Https://kopia.discourse.group/t/1-877-245-9984-what-day-are-delta-flights-cheapest/7089 https://kopia.discourse.group/t/1-877-245-9984-what-day-are-delta-flights-cheapest/7089 https://kopia.discourse.group/t/1-877-245-9984-what-day-are-delta-flights-cheapest/7089 https://kopia.discourse.group/t/1-877-245-9984-what-day-are-delta-flights-cheapest/7089 https://kopia.discourse.group/t... https://kopia.discourse.group/t/1-877-245-9984-what-day-are-delta-flights-cheapest/7089