Travel expert Eoghan Corry says airfares will spike to some destinations into next year.
He says this is because supply is not close to meeting demand, even reduced demand in a post-pandemic set up.
But he told Lunchtime Live aviation is moving in the right direction.
"They've absolutely started moving in July - a little bit slower in Ireland than in other parts of Europe.
"Airports like Amsterdam are back around 80/90% from the summer, we were operating around 40% - we're back to around 70%.
"We would have had 200 routes directly out of Dublin in 2019, they're down to about 130 - but we've kept the shape.
"We've lost a couple of airlines, Ethiopian being the notable example, and 2022 is all to play for.
"It'll be a quiet enough winter [with] a lot of aircraft parked up, fares will spike a little bit to some destinations like the Canaries.
"The supply isn't really at the level that demand - even post-COVID demand - is.
"But as I say summer '22 will be very, very interesting".
He was speaking as Aer Lingus unveiled its schedule for summer 2022, which includes 16 transatlantic routes.
This includes New York, Chicago, Boston, LA, San Francisco and Toronto.
Aer Lingus adds it will re-introduce flying from Shannon in March to New York and Boston - with 14 flights per week to the US.
It will also ramp up short-haul capacity between now and next summer - flying at least 50 short-haul routes in the summer - with 41 routes from Dublin, and a further six from Cork.
It will operate to London Heathrow from Shannon and Belfast, and to London Gatwick from Knock.
The Irish flag carrier says it will operate 71 routes and 62 destinations.
And US carrier United Airlines is to resume its daily, non-stop Shannon to New York/Newark service from March 27th.
Mary Considine, CEO of Shannon Group who operate Shannon Airport, says: "The restoration of this service is another welcome boost for transatlantic connectivity to our region and the broader west of Ireland.
"United Airlines is a highly valued airline partner of Shannon and we are delighted to have been able to work with them to restore this vital transatlantic service.
"Its restoration is a vote of confidence by the airline and another major milestone as we continue to re-build Shannon Airport's air services and fulfil our role as an economic driver for tourism, business and social connectivity."
A recent consumer survey from Aer Lingus suggests almost 65% adults in Ireland are planning to travel internationally in 2022.