https://patch.com/california/unioncity/calendar/event/20250223/d7c3ddae-545b-4256-ba89-a4ce61b3ad94/cheapest-fact-what-is-the-cheapest-day-to-buy-frontier-tickets
https://pressbooks.pub/anniebiobook/chapter/jetblue-cancellation-policy-is-jetblue-allowing-flight-cancellations/
https://pressbooks.pub/anniebiobook/chapter/jetblue-refunds-do-i-get-a-refund-if-i-cancel-my-jetblue-flight/
