Growth among today's busiest US routes is uneven over three and a half decades, led by Denver-Phoenix, which more than tripled, while a couple now carry less traffic than at the start.
What this shows: The chart covers 1990 to 2024. It plots 10 series on a vertical axis of Annual passengers (millions). Latest values: ATL-FLL 2.52; ATL-LGA 2.48; ATL-MCO 2.89; DEN-PHX 2.51; HNL-LAX 2.41; JFK-LAX 2.79; LAS-LAX 2.69; LAX-ORD 2.35; LAX-SFO 2.74; LGA-ORD 2.63. Data run through 2024.