Page takes up the job on Wednesday, and will report to chief people officer Pauline Prow. The role incorporates both external and internal comms, with a team of six reporting to Page.
In his time at Freuds, he worked with food manufacturer Mars and Walmart-owned retailer Asda.
Prior to this, he worked for Burson-Marsteller with clients including Danone and Royal Dutch Shell, and before that for Launch PR, where he led on the firm's work with BP.
Page said: "Monarch is an established player in a progressive and dynamic industry. I’m delighted that I’ll be part of its future and look forward to playing a key role in addressing the opportunities and challenges that lie ahead."
Monarch has five UK bases – London Gatwick, Birmingham, Manchester, Leeds-Bradford and Luton, the latter being its HQ. Its mostly European routes offer seven million seats annually.
The airline works on consumer PR with Big Dog, a Leicester agency hired in 2014 under its previous, pre-merger name of Big Communications.