I have flown many times with my son  (who is 16 months old) on QA.

On the whole they are very unhelpful to women when travelling. I asked an airhostess to hold my baby for 20 seconds whilst I went to the bathroom. The answer was no, they are not permitted. When my husband travelled on his own with the baby, they could not do enough for him, please let me hold him, please let me wind him, please let me change his nappy!

Also, ensure that you pre-book the basinet seat, otherwise he will be on your lap the whole time.