An airline CEO who uses exclusively 737s warns tickets could get more expensive due to production delays, with the FAA 'crawling all over' Boeing

• Boeing's delivery delays may cause Ryanair ticket prices to rise 10%, per the BBC.
• CEO Michael O'Leary said the message he's getting from Boeing is "confusion."
• The FAA is investigating Boeing's quality-control processes following last month's blowout.

Delays with Boeing's building of planes could mean price increases for customers flying on Europe's biggest budget airline, the BBC reported.

Ryanair is one of Boeing's biggest customers and exclusively uses the 737. The Irish carrier is known for offering tickets for as little as 20 euros ($21).