How soon is too soon to travel?

Erin • 21. Mama to a baby boy 💙

I’m due 3rd of November. My partners sister is getting married on January 26th and she lives a 3.5 hour flight away. Is it too soon to fly with a baby? If it’s okay to fly, would it be best to fly day time or night time with a baby so young?

People I’ve spoke to said day time but I thought night would be better- we have to book the flights soon so just needing opinions!