Upvote:1
These are few ways you can find the price you paid:
Upvote:11
If you have access to the airline/travel agent account on which the ticket was bought, you may be able to find it under the previous purchases there. Likewise, if you have access to the bank account or credit card that was used to pay, the information will be one of the statements at around the relevant time.
If you don't have access to any of those accounts, you won't be able to find out what the ticket cost. Because airlines use dynamic pricing, the price of a ticket can change from minute to minute. You'd have to know the exact time at which the ticket was bought to even have a chance to know what it cost. However, I doubt that any airline would release sufficiently detailed pricing information for past tickets to allow you to work out the actual cost: that would give away a lot of commercially sensitive information about their pricing algorithm.
So, ultimately, the answer is that you should ask your daughter what the ticket cost and, if she doesn't want to tell you, then you'll have to accept that you don't know.