The cancelled flights include Flight 1581 that was scheduled to depart from Branson Airport at 11:48AM and arrive in Atlanta at 2:20PM.
AirTran said the rest of its network was operating normally. It said stranded travelers could be rebooked on flights Tuesday through Thursday. You can check your flight status on AirTran Airways' website.
Delta said in midmorning it canceled more than 1,450 flights including those on regional affiliate Delta Connection - one-fourth of its schedule. The airline canceled about 500 flights on Sunday. Delta said affected customers could rebook without paying fees.