Great question!

In this episode, we answer that question (on a high level) so you can decide what works best for your travel needs.

Quick answer: TSA PreCheck expedites security screening for domestic flights within the United States, Clear offers biometric verification for expedited access to security lines at select airports, and Global Entry provides expedited processing for international travelers arriving in the United States, including TSA PreCheck eligibility for domestic flights. Music by Karaleigh Garrison, "Ready for an Adventure". Used with permission