Drive from PHX or TUS to LAS for $1

There are restrictions--good thru end of May. Thrifty Car Rental.
See:
https://www.thrifty.com/Deals/Featured/ROUD5.aspx?SearchType=&SearchParam=

Excellent tip, thank you.

These seasonal one-ways can be great, I did a spring Hertz one from Miami to San Antonio not too long ago. Just $10 a day for a 2014 top of the line Chevy Impala LTZ, from central or southern Florida to anywhere of the other connected 47 states. Watch for specials going the reverse direction next fall.