One nervous traveler touches the outside of the airplane while boarding and prays before takeoff. Another brings anti-anxiety medication. A third has been watching YouTube videos narrated by pilots to understand what happens during flights.

Such rituals have helped anxious passengers overcome their fear of flying. But in recent months, several travelers said, news of issues on Boeing planes has made these strategies insufficient and has threatened their ability to walk down the jetway. So they have come up with a plan: avoid flying on Boeing aircraft, even if it means re-booking flights.
I just can’t step on that plane,” said Leila Amineddoleh, an art lawyer who lives in Hoboken, New Jersey. “Even if the chance of getting hurt on a Boeing flight, even with all these incidents, is slim.”