Money making is an art, not everyone can do it. Today let me explain a totally fictious money making scheme. Btw don't try it unless you are really talented.
Step 1: organize a trip
Step 2: get people to agree to come and also try get atleast one person who wouldn't come to agree to join the trip.
Step 3: Inform that you are going to buy tickets and get commitment
Step 4: Get a 3rd party sponsor to buy the tickets.
Step 5: Now make the guy who said yes and not going to make the trip feel guilty. So he forcefully tries to pay for his ticket. Pretend as if you don't want to collect the money.
Step 6: Now get the ticket money from the others dividing the whole ticket cost amoung those who came.
Step 7: Reimburse the tickets at the station of the people who didn't turn up
Step 7: After all this, the person who didn't come will come and pay. So you get that too.
Yo can be too lazy to calculate the profit. But make sure you circulate a nicely made excel sheet with all the expenses to the guys who travelled. Don't add the absentee and sponsor to this list.
Ok, now shall we plan our next trip ;)