When flying domestically with Horizon Air, passengers are typically required to present a valid form of identification at the airport. This is in accordance with Transportation Security Administration (TSA) regulations, which require travelers to show identification when going through security checkpoints. Acceptable forms of ID usually include a government-issued photo identification, such as a driver's license or passport.
It is important to note that children under the age of eighteen typically do not need to provide identification when traveling with an airline, but it may be prudent to carry a copy of their birth certificate or other documentation for verification purposes.
For the most current information regarding identification and travel requirements, it is advisable to check the official Horizon Air website where passengers can find updates and details specific to their travel plans. This can help ensure a smooth and hassle-free experience at the airport.