Drive or Fly for the Holidays: At 1,200 Miles, Driving Wins From 2 Travelers at a $400 Fare, From 3 at $200
We priced the round trip at EIA's $4.28 gas and AAA's 2026 per-mile costs, then found the group size where driving becomes cheaper at four fares and three distances. The fare decides it; a $1.77 swing in gas prices moves a 500-mile drive by $64.