There might be a change table at the front ... we have always sat at the back so I didn't think about it. You're lucky to have been able to organise your seats already - we couldn't do that online, we had to wait until the morning of the flight when we go to the airport because we had an infant travelling on our laps. This time we only have one travelling on our laps (it is the first flight in a couple of years that we only have one) so we might be able to check in online.

You'll be fine as Junglemum said. It is pretty quick and there is a lot going on so it might keep her well entertained just looking around. The flight attendants are usually very interested in babies too so they will probably come along and talk to her as well which mine all find entertaining.

Is your DH going as well or are you one your own? Passing her between both of you (if you are both going) can give you a break and you can get a cuppa and a snack which will help you keep calm and feel relaxed as well. If you can get some time out while DH has a turn - do it. It makes a difference if you don't have to hold a wriggly baby all by yourself for the whole flight. If you are on your own, sometimes the flight attendants take them for a little walk around the plane too, if you are comfortable with that.