Dillingham, AK

What the Data Says About DLG

Dillingham, AK in Dillingham, Alaska handled 2,866 flights in the Bureau of Transportation Statistics dataset between 2020 and 2025, posting a 82.6% on-time departure rate. Of those flights, 500 experienced delays, 84 were cancelled, and 0 were diverted. The cancellation rate works out to 2.93%, the diversion rate to 0.00%, and the average delay when departures run late is 54.2 minutes. These figures are the baseline for comparing DLG against other airports in the same state and nationally.

Breaking down what drives delays at DLG, Late Aircraft leads the pack. Late Aircraft accounts for 41.8% of total delay minutes, followed by Carrier at 24.8% and NAS (National Aviation System) at 15.5%. Weather contributes 5.9% of delay minutes at this airport, while security holds the smallest share at 11.9%. Travelers often overestimate the weather share; the BTS categorization shows late-arriving aircraft and carrier operations as the larger contributors.

Seasonally, August runs the cleanest at DLG with a 95.4% on-time rate, while January is the roughest at 77.5% — a 18-point swing between best and worst month. Volume peaks in August, when average flights hit 84. The busiest route from DLG is to ANC (Anchorage), with 1,168 flights at a 78.1% on-time rate. Combine these numbers — 82.6% on-time, 54.2-minute average delay, 2.93% cancellation rate — and you have a concrete picture of departure reliability at Dillingham, AK.