Holiday prices will rise again after short-term sales to recover from the pandemic.
That is according to travel expert Eoghan Corry.
The editor Air & Travel Magazine told Newstalk Breakfast the industry will do all it can to recoup losses.
"The first thing that's going to happen is a mother and father of all seat sales.
"Ryanair are doing a €10 during July and August... they're due to announce a sale this week where one travels free with one per booking.
"There's no doubt that the airlines have a lot of money to make back, they've lost an awful lot of money - their very existence has been challenged.
"So long-term we might see that rising again - certainly long-haul flights are not good value at the moment.
"The other place we're going to see price rises is among the hotel sector.
"They've had to invest heavily and they've also lost a lot of money.
"We'll probably see prices floating up about 20% in 2021.
"This supply-demand thing, which we saw playing havoc with home holidays by the way - because demand went up and supply went down - so they priced a little bit high for those booking in advance.
"But all those mechanisms have been interfered with, it's going to take a lot of time for them to balance out.
"So we will probably see holidays more expensive in the medium-term".
It comes as Transport Minister Eamon Ryan says Ireland is on track for the EU travel cert in two weeks' time.
The new EU Digital COVID Certificate was officially rolled out in every member state, except Ireland, last Thursday.
But on Monday Minister Ryan told The Hard Shoulder he was confident there would be no problems.
"COVID does not do certainty; it is constantly changing but at the moment we are on track to re-open aviation on the 19th - to see the certs in place.
"We will still have to be careful, we will still have to monitor it, we will still be cautious because I think that is the appropriate public health approach.
"But that re-connecting of families and reconnecting the island is an important part of re-opening and that is on track", he says.