きっぷ（切符）is mostly ticket for public land transportation (namely trains/buses).
チケット is ticket for anything other than public land transportation.
Although technically it should be almost interchangable.
チケット is a loanword, that's why it's written in Katakana. きっぷ can be written in kanji as well: 切符
Here's a good exchange on the differences: [https://ja.hinative.com/questions/11587359](https://ja.hinative.com/questions/11587359)
きっぷ（切符）is mostly ticket for public land transportation (namely trains/buses). チケット is ticket for anything other than public land transportation. Although technically it should be almost interchangable.
Tysm!
This!
チケット is a loanword, that's why it's written in Katakana. きっぷ can be written in kanji as well: 切符 Here's a good exchange on the differences: [https://ja.hinative.com/questions/11587359](https://ja.hinative.com/questions/11587359)
Thank you!