How can I convince my daughter to get on a plane?

My daughter just turned 8 and we want to catch a flight to Legoland to celebrate… she says she wants to go but not on a plane which is the only option to get there.She’s been on a plane before when she was about 2 so of course she doesn’t remember but she’s giving me such a hard time I’m ready to say forget the whole idea smhAny tips for getting her to change her mind about the idea? She’s like this with alot of things, never wants to do anything but then has a blast when it’s all said and done. It gets frustrating honestly because I feel like she’s only this way with me, if it was her dad’s side of the family she wouldn’t complain at all