Agree with multiple other posters that with summer season rates you are likely better off paying cash.
I've stayed at HP Scottsdale before a PHX flight departure and it worked out fine, easy and short drive to the airport. The hotel was above average for HPs and with the adjacent nightclub closed it's an even better option now. Lots of restaurants within walking distance.
One note of caution if you stay in Tempe (airport HP or Mission Palms etc.), there is a local spike in COVID cases happening now thanks to the ASU crowd.