Ryanair is giving away 250,000 free seats across Europe for travel in September and October.
The budget carrier claimed that at one stage bookings were running at more than double the normal hourly rate at more than 20,000 via its website.
The ticket sale runs out at midnight tonight (Thursday).
The promotion is designed to mark the airline’s 150 millionth passenger flying to or from the UK since it started flights from London Luton Airport to Dublin in May 1986.
Ryanair now serves 25 countries and carried 52 million passengers this year.
By Bev Fearis
