https://www.devex.com/people/travel-deals-what-is-the-cheapest-day-to-book-allegiant-flights-2127228
https://www.devex.com/people/travel-deals-what-is-the-cheapest-day-to-book-allegiant-flights-2127228
https://www.devex.com/people/travel-deals-what-is-the-cheapest-day-to-book-allegiant-flights-2127228