AceShowbiz - Justin Bieber and Hailey Baldwin are about to say "I do" again. As the couple is expected to hold their second wedding in South California on Monday, September 30, they were spotted departing on a private plane in Los Angeles at a small airport in Los Angeles on Saturday.

The Canadian singer and his model wife opted for casual looks during the outing. The "Sorry" hitmaker wore a gray hoodie and matching pants, a pink trucker's hat and white and aqua sneaker. The 25-year-old completed his style with a black backpack.

As for Hailey, she was clad in an oversized denim shirt. The 22-year-old paired it with white pants and white tennis shoes.

Justin offered a glimpse of the private jet by posting a photo of it on his Instagram account. "Daaaaa bears," he captioned the pic. Brooklyn Beckham was among the commenters underneath the post, writing, "That's so sick mate."

Ahead of their wedding ceremony, a source reveals that the pair are so much "in love" with each other. "Despite some hard days, they really are two kids who are crazy in love," the source tells PEOPLE. "Hailey has a sweet, pure heart and her life is simple and uncomplicated."

The informant goes on saying, "That's something Justin has craved for a long time whether he knew it or not. Hailey brings stability to his world, and she truly just wants to build a loving, happy home and family with Justin."

It is said that their second wedding for the Christian couple will be a larger, religious ceremony. "Their marriage is rooted in their faith. When things get difficult, they lean on their pastors and church friends," the source explains.

Justin and Hailey had booked the Montage Palmetto Bluff for their lavish nuptials which is going to be attended by friends and family. However, the preparation is not one without problems. Previous report suggested that the pair upset guests at the South Carolina hotel where they are holding their second wedding ceremony by taking over large parts of the venue.

An email obtained by TMZ showed guests who're booked into the hotel from Sunday to Tuesday would suffer major disruptions, as hotel chiefs were closing off their spa, a pool and a gourmet restaurant for the nuptials. According to editors at the website, the restrictions had angered some guests due to the late notice and disruption to their vacations.

To smooth things over, hotel bosses were allegedly offering affected guests refunds, alternate bookings, upgrades and a free dinner in one of the hotel's other restaurants.