The additional flight for the clash in Italy was lined up after following huge demand from Celtic fans.
It will depart from the Ayrshire terminal on Wednesday, March 6 at 7.20am and return from Turin on Thursday with a 6.15pm departure.
Ryanair's Stephen McNamara said: "Our reservations centre was flooded with calls from Celtic fans eager to witness their team's showdown with Juventus.
"Fans aiming to travel should visit www.ryan air.com"
Earlier this month we revealed how Celtic fans may have to break the bank if they want to jet to the game in the Euro competition, now at the last-16 stage.
We reported that, for most Hoops fans, living the Euro dream will cost them hundreds of pounds in fares and the chances are they will be forced to switch planes to finish the journey.
Charter flights are expected to be laid on, with tour operators arranging packages combining accommodation and flight tickets.
But those who want to make their own way face a long and expensive journey.
Just two airlines will fly fans out of Glasgow to Turin, but neither offers direct flights.
Air France will take supporters on a long haul, the cheapest return ticket costing almost £500.
Flybe – on behalf of Air France – will take supporters from Glasgow to Cardiff and then on to Paris Charles De Gaulle, where they will have to board another plane to complete the journey to Turin.
Due to the flight times, Celtic fans must set off the day before the game and won't be able to return until the day after.
The fares for that trip range from £489.14 to £1024.64.
Alternatively, British Airways offers a flight from Glasgow to London Gatwick and then another flight to Turin. These prices start from £167.94 rising to £630.