✈️ JSX Capacity Stabilizes After Bottoming Out in Late July, Trough Down by Half from Peak
JSX capacity over the past eight weeks (June 19 to August 13, 2026) experienced notable fluctuations. Avi-Go data shows that the first four weeks held at a high plateau of 164 to 179 flights, peaking at 179 flights during the week of July 10 to 16; capacity then declined markedly starting the week of July 17, reaching a trough of 88 flights during the week of July 24 to 30, down about 51% from the peak; over the past two weeks it has stabilized modestly at 111 to 112 flights, but remains significantly below earlier levels. The eight weeks totaled 1,136 flights, with the network highly concentrated at KLAS Las Vegas (240 flights, accounting for 20.5%) and KDAL Dallas Love Field (218 flights, accounting for 18.6%), with the two stations together contributing nearly 40% of departure capacity.
Impact: The JSX capacity decline was concentrated within the short window of late July, and the low-level stabilization after the trough means capacity has not yet returned to the earlier plateau; for seat supply providers highly dependent on the two main routes of Las Vegas and Dallas, the nearly 40% concentration at these two stations also means that any scheduling adjustment at either station will amplify into the overall capacity curve.
Recommendation: It is worth tracking whether JSX can return to the earlier plateau of over 150 flights in mid-to-late August, to determine whether this decline is a seasonal adjustment or a continued downward shift in capacity structure; the weekly flight trends at KLAS and KDAL can serve as a leading indicator for observing overall capacity recovery.