Guys would you like if a girl pays for flights?

It is going to be my birthday next month and also the guy I am seeing for more than year. I want to go to my home country for a week and I found some cheap flights. I was thinking of buying them and surprise him do you think he would like the surprise? Or think that I should not do it? I am puzzled. He has introduced me to his family and friends but we are not like oficial. Maybe I should just buy for myself!
Guys would you like if a girl pays for flights?
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