Pilot/Controller Glossary

DELAY ASSIGNMENT (DAS)

This reproduces published FAA reference text for study. It does not replace the current official FAA publication or regulation.

Delays are distributed to aircraft based on the traffic management program parameters. The delay assignment is calculated in 15-minute increments and appears as a table in Traffic Flow Management System (TFMS) .

Retrieved from ecfr.gov on July 18, 2026.