The Short Answer
A private city tour in Seoul (palaces, night views) typically starts around $280-480 flat for 1-2 people, stepping up roughly $250-350 for a third traveller. A private airport layover tour from Incheon runs similarly, $320-520 for 1-2 people. A private day trip outside Seoul (Nami Island, the DMZ, Suwon) runs $280-620 for 1-2 people, and a multi-day private tour with KTX train travel and hotels (Busan, Gyeongju) runs into the $1,600-2,900+ range for the group. Specialty VIP tours with an interpreter or a Russian/other-language guide price noticeably higher, often $1,500+ even solo, since they're a different, premium product.

Seoul: Private City Tour with Palace & Night Views
A real example of standard private city-tour pricing that steps up for a third traveller.
From $481
Full day






