https://connecticut.forums.rivals.com/threads/frontier-cheap-booking-what-is-the-cheapest-day-to-fly-on-frontier-airlines-booking-avlaible.12251/

https://connecticut.forums.rivals.com/threads/frontier-cheap-booking-what-is-the-cheapest-day-to-fly-on-frontier-airlines-booking-avlaible.12251/
https://connecticut.forums.rivals.com/threads/frontier-cheap-booking-what-is-the-cheapest-day-to-fly-on-frontier-airlines-booking-avlaible.12251/
https://connecticut.forums.rivals.com/threads/frontier-cheap-booking-what-is-the-cheapest-day-to-fly-on-frontier-airlines-booking-avlaible.12251/