Editing Cargo airline (section)

=== Passenger and cargo ===
In the past, some cargo airlines would carry a few passengers from time to time on flights, and [[UPS Airlines]] once unsuccessfully tried a passenger [[charter airline]] division. 

Passenger airlines regularly use their largest passenger aircraft like the [[Boeing 777]]-300ER to earn additional revenue beyond passengers on a scheduled flight, by transporting a limited amount of cargo alongside passengers' luggage underneath the passenger cabin.[https://www.anacargo.jp/en/int/specification/b7_300.html] This is known as mixed operations or belly freight, and makes up {{#expr:125750/262333*100round1}}% airline cargo traffic as of 2018.<ref name=WATS2019>{{cite web |url= https://www.iata.org/contentassets/a686ff624550453e8bf0c9b3f7f0ab26/wats-2019-mediakit.pdf |title= World Air Transport Statistics |publisher= [[IATA]] |date= 2019 |access-date= 2020-06-04 |archive-date= 2020-08-15 |archive-url= https://web.archive.org/web/20200815214419/https://www.iata.org/contentassets/a686ff624550453e8bf0c9b3f7f0ab26/wats-2019-mediakit.pdf |url-status= dead }}</ref>  [[Alaska Airlines]] operates a series of short flights nicknamed the "Milk Run" to small towns in Southeast Alaska that do not have road access, using five Boeing 737-400 Combi aircraft whose cabin is divided in half with cargo up front and 72 seats in the back.[https://news.alaskaair.com/alaska-airlines/the-milk-run-flight/]