The Maasai Mara is not part of KWS, but rather falls under Narok County.
Please see all the fees below which is taken directly off their website:
Park fees – Per Person Per Day (pppd)
NON RESIDENTS
Non Resident Adults Inside the park – US$ 70
Non Resident outside the park – US$ 80
Non Resident Children inside the park – US$ 40
Non Resident Children outside the park -US$ 45
Non Resident Student Adult – US$ 40
Non Resident Student Children – US$ 20
EAST AFRICAN CITIZEN (Ksh)
Citizen Adults – Ksh. 1000
Citizen Children – Ksh. 200
Citizen Student – Ksh. 200
EAST AFRICAN RESIDENTS (Ksh)
Resident Adult – Ksh 1,200
Resident Children – Ksh 300
Resident Student – Ksh 300
Vehicle charges – Per Vehicle Per Day
Vehicle 5 seats or less – Ksh. 400
Vehicle 6 seats but less than 12 – Ksh. 1,000
Vehicle 34 seats but less than 24 – Ksh. 3,000
Vehicle 25 seats but less than 44 – Ksh. 4,000
Vehicle 45 seats and above – Ksh. 5,000
Truck Charges – Per Visit
Truck 1-3 ton – Ksh. 700
Truck 4-7 ton – Ksh. 2,500
Truck 8 ton and above – Ksh. 3,500
Aircraft – Single Landing Fees
Aircraft with less than 3 seats – Ksh. 300
Aircraft 3 seats but less than 6 seats – Ksh. 500
Aircraft 7 seats but less than 14 seats – Ksh. 1000
Aircraft 15 seats but less than 20 seats – Ksh. 2000
Aircraft 21 seats and above – Ksh. 3000
Balloon Service
Operating permit – Ksh. 100,000
Landing fee per person per landing – US$ 50
Cinematography
1-5 persons per week – Ksh. 30,000
6-20 persons per week – Ksh. 50,000
Over 20 persons per week – Ksh. 100,000
SPECIAL CAMPSITE RESERVATION
Special Campsite reservation fee per week – Ksh. 10,000
Special Campsite cancellation fee on reserved sites – Ksh. 10,000
PRIVATE conservancies have a higher rate. Normally about US$80 pppd