United Airlines shares are doing really well. Boeing $BA machinists finally voted to end their strike and approve a new union contract. Plus: Quartz takes a deep dive into the history and science behind airplane boarding conventions.

Take a moment to catch up on what’s been happening in the world of airlines and aviation.

As the rest of the airline industry tries to figure its way back from a capacity crisis, United Airlines (UAL) is already heading down the runway towards a brighter future. The carrier’s stock climbed 39% in October.

Boeing $BA (BA) machinists ended their strike late Monday after almost two months, ratifying a union contract that gave them a 38% raise. The approval came after a tense bargaining process that included the threat of worse offers to come from the troubled plane maker’s CEO.

Boeing $BA’s (BA) machinists strike is now over after workers ratified a new union contract late Monday, the third draft of an agreement put forward by the company after workers rejected the first two.

A major Boeing $BA (BA) supplier is worried it won’t be able to continue as a business for much longer. Fuselage builder Spirit AeroSystems (SPR) worries it won’t have enough cash to continue operations.

Bringing order to the boarding experience has long been a challenge for airlines, but the precise logistics of the practice can present their own obstacles.