LINDSEY WASSON/Reuters Alaska Airlines and Boeing signed an agreement in principle for a total of 68 of the 737 Max aircraft with an option for 52 more. Deliveries will take place over the next four years as Alaska uses the jets to replace its Airbus A320 family fleet. Alaska has not yet taken delivery of a Boeing 737 Max yet but plans to fly the jet in March 2021. Anchorage, Alaska will also see three new routes to the Lower 48 and year-round service to Phoenix. Alaska Airlines and Boeing just inked an agreement for 23 additional 737 Max aircraft, growing the airline's total order to 68 aircraft to be delivered from 2021 to 2024.