Kyle Sandilands and his new bride Tegan Kynaston jet off to their honeymoon

Kyle Sandilands and his new wife Tegan Kynaston are on their idyllic honeymoon.

The couple and their young son, Otto, checked in for their first class flight to France at Sydney Airport on Friday.

The pair looked relaxed and happy as they wheeled their luggage around the terminal, while Tegan pushed little Otto along in a stroller.

Kyle kept it casually chic in a checkered navy blue jacket with a black T-shirt underneath.

The 52-year-old added dark pants and sneakers to his ensemble, as well as a cap.

Tegan, 37, looked cozy in a maroon fleece and blue skinny jeans.

She added a pair of designer black and white sneakers and carried a Christian Dior bag.

The new mom helped her toddler walk along, smiling and hugging the toddler as the couple waited to check in.

Kyle and Tegan go on a honeymoon trip to the South of France with friends.

The couple, who got married last month, will be bringing a bunch of friends and staying in a castle that costs about $8,200 a night, The Daily Telegraph claimed.

As well as Kyle’s KIIS FM co-host Jackie ‘O’ Henderson and her daughter Kitty, Kyle brings along his manager Bruno Bouchet and Bruno’s partner Laura.

News anchor Brooklyn Ross and Kyle and Jackie O Show producer Jaimee Blazquez and their partners are also coming to the outing.

During the two-week stay, Kyle is expected to continue recording his radio show and also have days off.

It comes after Jackie confesses that she decided to crash the romantic getaway.

The radio star seemed to get jealous of her radio show with Kyle that she won’t be escaping to Europe any time soon, so she invited herself to their post-wedding party.

‘I’m going on his honeymoon. Why not? I’ve never been to the south of France,” Jackie O said in the broadcast.

Kyle then said that Jackie will be a “third wheel” on their romantic honeymoon trip to France.

The shock jock tied the knot with his wife Tegan in a $1 million ceremony at the landmark Swifts mansion in Darling Point, Sydney.

Aussie celebrities who attended the wedding included NSW Prime Minister Chris Minns, Today presenter Karl Stefanovic and ‘King of the Cross’ John Ibrahim.

Kyle brought his wedding guests to tears when he shared a sweet tribute to his new wife.

The radio star gave a moving speech in front of 130 guests at Swifts — a late Victorian Gothic Revival residence with a $60 million price tag — during the reception.

As guests lined up for a three-course dinner at the reception that followed, Kyle took the microphone to tell his bride: “Baby – we did it.”

“I always thought that the love I was looking for and wanted was a delusion and not attainable,” Sandilands said in his speech.

You changed my life and made me a better person. I love you baby.’

Kyle added that watching Tegan become a mother to their son Otto “made him fall in love with her all over again.”