[TedDoesntTalk]

They canceled close to 3000 flights in the last few days, stranding hundreds of thousands of people.

[late2part]

More like 10k:

"This week, with cancellations from other major airlines ranging from none to 2%, Southwest has canceled nearly 10,000 flights as of Wednesday and warned of thousands more Thursday and Friday, according to FlightAware. "

https://apnews.com/article/business-transportation-us-depart...

[nijave]

I think they were doing close to 3k per day for a few days