Most of the posters who have answered so far interviewed long before I did.
I went on over 20 interviews, many to community programs and the Midwest. Those programs are most likely to pay for hotel or offer significant discounts, although many academic centers did as well.
So a few years back, it was all the rage that programs did this
However, depending on your list make up of course, I would still budget $100 per interview for hotel and that will likely work out as an average when you factor in discounts, who pays, places where you book that are more vs ones that are less.
If you use hotels.com you get a free $100 credit for a night after booking 10 nights through them. I liked their search features for figuring out good prices vs location relative to interview.
Also, compare prices for rental car + case vs using Uber or cab. I preferred rental car as I found the cost ~$30 plus the convenience of having complete control of to/from interview & time, to be a good deal compared to cab.
I probably budgeted about $150 in addition to flights for each interview - usually enough to cover a cheap hotel, rental car, gas, and incidentals like snacks/food. Before people say that's too much it's meant to be an overestimate and there are ways to do it cheaper, but you don't want to run out of money interview season.