Why Do Flights Take Longer Routes Instead Of Straight Lines?

Airlines routinely adjust routes to take advantage of favourable winds, even if that means flying a path that looks longer.
Business Insider

Flight cancellation updates: FAA cuts have hit airports across the US as the shutdown persists

For the latest updates, follow BI's Saturday live blog here. The government shutdown is now disrupting travel plans for thousands. Air traffic controllers have been working without pay since October 1 ...