Jamestown, ND

What the Data Says About JMS

Jamestown, ND in Jamestown, North Dakota handled 9,384 flights in the Bureau of Transportation Statistics dataset between 2020 and 2025, posting a 87.2% on-time departure rate. Of those flights, 1,201 experienced delays, 258 were cancelled, and 26 were diverted. The cancellation rate works out to 2.75%, the diversion rate to 0.28%, and the average delay when departures run late is 122.4 minutes. These figures are the baseline for comparing JMS against other airports in the same state and nationally.

Breaking down what drives delays at JMS, Carrier leads the pack. Carrier accounts for 40.9% of total delay minutes, followed by Late Aircraft at 35.0% and Weather at 17.7%. Weather contributes 17.7% of delay minutes at this airport, while security holds the smallest share at 0.4%. Travelers often overestimate the weather share; the BTS categorization shows late-arriving aircraft and carrier operations as the larger contributors.

Seasonally, April runs the cleanest at JMS with a 96.8% on-time rate, while February is the roughest at 89.8% — a 7-point swing between best and worst month. Volume peaks in January, when average flights hit 144. The busiest route from JMS is to JMS (Jamestown), with 2,661 flights at a 86.5% on-time rate. Combine these numbers — 87.2% on-time, 122.4-minute average delay, 2.75% cancellation rate — and you have a concrete picture of departure reliability at Jamestown, ND.