My ski trips originate in MN and end somewhere in CO. Typically this is a 1x per year type of trip for me and various family members over the last several years. I'm going to include rough averages. We drive from MN to CO, particularly with multiple family members this makes it much more affordable and really doesn't add that much travel time, based on our location being 2-3 hours from airports and then avoids the rental car issue completely. Gas costs $300. Typically we'll spend one night in a hotel, usually somewhere in Nebraska on the way, cost $100.
Our trips usually involve us leaving on a Saturday and returning home the following Sunday, for 8 days total vacation. 2-3 days of travel, 4-5 days skiing, and a day or so of downtime, snowshoeing, shopping, etc. In the past, we've usually opted for a four-pack ticket somewhere and then sometimes added a single day at a different place. This year, we bought Winter Park midweek passes as a mostly comparably priced option, since four-packs aren't being sold. We'll ski at least five days. Cost $350-$500.
We'll rent a condo for our stay, sometimes slopeside, sometimes in the village, sometimes a little further out. Depends on the dates of the trip vs. cost. Typically, we're in the condo 6-7 nights and costs are around $1,000. Certainly, someone can spend less and they can also spend much more.
Food is a mix of condo cooking and dining out (other than this year). Cost varies as we've sometimes dropped $150-$200 on a celebratory or occasion meal, and we've also all dines on a $15 Stoufer's frozen lasagna.
All-in-all, I'd say our average trip is around $2,500 for 2-5 people. Sometimes (mostly recent) it's just my son and I, other times, it's my wife, daughter, and a niece as well. This year's trip, just after New Years trip is shaping up to look like right around that $2,500 mark.
Condo in Winter Park $1,050
WP midweek passes $900 (one adult, one young adult)
gasoline ~$300
hotel on drive out ~$100
food ~$300?