Southwest Airlines starting 4/8/15 will begin MCI - LGA service,2x daily utilizing a 737-700 aircraft.

FLT#3034 MCI 9:20am – 1:10pm LGA
FLT#333 MCI 4:30pm – 8:20pm LGA

FLT#451 LGA 6:20pm – 8:40pm MCI
FLT#413 LGA 7:55pm – 10:15pm MCI (Likely Oversold -Wall Street Commuter)