As of 26 Nov 2017, here are the Summer 2018 NCSAs that have been posted. Please see ncsas.com for more details.

09-16 Jun 2018 Air Force
AF Specialized Undergraduate Pilot Training
Laughlin AFB TX 15 $450.00
09-16 Jun 2018 Flight
NFA-TX Wing Shirley Martin Powered Flight Academy
Nacogdoches TX 16 $800.00
10-16 Jun 2018 Aviation
Aircraft Maintenance & Manufacturing Academy
Independence KS 15 $350.00
16-21 Jun 2018 Aviation
Model Aircraft & Remote Control Flight Academy
Ft. Leonard Wood MO 12 $375.00
16-28 Jun 2018 Aviation
Model Aircraft & Remote Control Flight Academy
March ARB, CA CA 12 $375.00
16-24 Jun 2018 Flight
NFA-Great Lakes Region Powered Flight Academy
Oshkosh WI 16 $800.00
22-30 Jun 2018 Flight
NFA-Northeast Region Powered Flight Academy
Bangor, Old Town ME 16 $800.00
23 Jun –
01 Jul 2018
Air Force
AF Pararescue & Survival Orientation Course
Kirtland AFB NM 15 $450.00
23-29 Jun 2018 Air Force
AF Space Command Familiarization Course
Peterson AFB CO 15 $450.00
24-30 Jun 2018 Air Force
AF Civil Engineering Academy
Tyndall AFB FL 15 $300.00
24-30 Jun 2018 Technology
Engineering Technologies Academy
Middle Tennessee State University TN 15 $375.00
24 Jun –
07 Jul 2018
Flight
Cadet Aviation Ground School
McGhee-Tyson ANGB TN 15 $550.00
25 Jun –
05 Jul 2018
Leadership
Cadet Officer School
Maxwell AFB AL 16 $500.00
28 Jun –
07 Jul 2018
Flight
NFA-MER Col Roland Butler Powered Flight Academy
Blackstone VA 16 $800.00
30 Jun –
02 Jul 2018
Leadership
National Cadet Competition
Wright State University, Dayton OH N/A Varies
30 Jun –
07 Jul 2018
Aviation
Model Aircraft & Remote Control Flight Academy
Oshkosh WI N/A $375.00
08-15 Jul 2018 Operations Training
Lonestar Emergency Services Academy
Nacogdoches TX N/A Varies
08-14 Jul 2018 Flight
NFA-TX Wing Glider Flight Academy
Waller TX 14 $800.00
09 Jul –
01 Aug 2018
Leadership
International Air Cadet Exchange
World Wide DC 17 $1,170.00
13-21 Jul 2018 Flight
NFA-Northcentral Region Joint Flight Academy
Mankato MN N/A $800.00
20-28 Jul 2018 Air Force
AF Specialized Undergraduate Pilot Training
Columbus AFB MS 15 $450.00