Flying in February

Ni

Am I absolutely insane for flying with LO in February? She’ll be 4 1/2 months old and after I booked it I panicked due to flying on a plane in the middle of flu season. 😳 we’re going to Disney for our sons 7th birthday but I’m so worried she’s now going to catch some nasty sickness. Please let me know if anyone has flown during this time of the year with their babies.