According to Fox31:
DENVER (KDVR) — Southwest Airlines canceled hundreds more flights Monday following a weekend of major service disruptions.
According to Flightaware, the carrier has canceled 348 flights Monday and delayed another 271 flights.
There are a total of 43 Southwest Airlines flights canceled at Denver International Airport as of 11:00 a.m. and 93 Southwest Airlines flights delayed.
The Dallas-based airline had blamed air traffic control issues and weather for its weekend “operational challenges” that saw over 1,000 canceled flights on Sunday alone. Southwest Airlines was the only airline to report the issues on that scale.
More info/updates HERE!