Flight time limitations: Deadhead transportation
Read the official ruleWhen an airline transports you as a crew member to or from a duty assignment (called "deadhead transportation"), that travel time doesn't count as rest. This matters because pilots must receive specific minimum rest periods between duty assignments under FAR regulations, and this rule clarifies that sitting in the back of an airplane—even though you're not actively working—cannot be counted toward meeting those rest requirements.
For example, if you finish a trip and the airline flies you home as a passenger, that flight time doesn't start your rest period. Your rest period only begins once you're released from all duties and transportation. Similarly, if you're flown to another city to start a trip, any required rest must be completed before that deadhead flight begins. This ensures pilots receive actual rest time rather than just passive transportation time, which can still be fatiguing.
*This is a plain-English summary for study only. The official 14 CFR text on this page is controlling — always read the current regulation and consult a CFI.*