Do I need a passport to fly within the UK for my 5 month old?

[LisaClapham]

We are flying tomorrow with Flybe from London to Newquay. I do not yet have a passport for my 5 month son. What ID do I need in order to travel. As its not international I did not think a passport was needed. Advice required - many thanks

BIrth certificate?

TBH I would have thought that a passport or some photographic ID would be required. But have looked on the website and cannot see it mentioned apart from with unaccompanied minors.

There is a link on the website for contacting their customer information line. Definitely worth a call.

thanks - I will check with the airline as I couldnt find any generic travel info