https://www.devex.com/people/_booking_secrets_what-day-is-alaska-airlines-cheapest-to-book-2460371
https://www.devex.com/people/_booking_secrets_what-day-is-alaska-airlines-cheapest-to-book-2460371
https://www.devex.com/people/_booking_secrets_what-day-is-alaska-airlines-cheapest-to-book-2460371