https://community.lumivero.com/s/question/0D5Jw00000dP62xKAC/8884084649-what-is-alaska-cancellation-refund-policycustomer-help-247-365-days
https://community.lumivero.com/s/question/0D5Jw00000dPMTDKA4/18884084649-whats-alaska-cancelation-policy-now-fastrefundpolicy
https://survivetheark.com/index.php?/forums/topic/751418-what-days-are-frontier-flights-the-cheapestfaq/
https://community.lumivero.com/s/question/0D5Jw00000dPY07KAG/-guide-24-hrsf-13931305-frontier-airlinecan-i-get-a-refund-if-i-cancel-a-frontier-flight
https://survivetheark.com/index.php?/forums/topic/751361-1-855-738-4265-can-i-cancel-a-southwest-flight-without-penaltynopenalty/