| Domestic | 
							
								10/29/25 1900Z  | 10/29/25 2200Z  | Runway | !HLN 10/275 HLN RWY 27 PAPI U/S 2510291900-2510292200 | 
							
								10/29/25 1500Z  | 10/29/25 1800Z  | Runway | !HLN 10/276 HLN RWY 09 PAPI U/S 2510291500-2510291800 | 
							
								10/27/25 1233Z  | 10/29/25 1800Z  | Runway | !HLN 10/264 HLN RWY 27 HLDG PSN SIGN AT RWY 17/35 LGT U/S 2510271233-2510291800 | 
							
								10/11/25 1358Z  | 10/31/25 2300Z  |  | !HLN 10/088 HLN APRON TXL C1 CLSD 2510111358-2510312300 | 
							
								10/1/25 0715Z  | 10/2/26 2000Z  |  | !HLN 10/009 HLN NAV RWY 27 BACK COURSE U/S 2510010715-2610022000 | 
							
								9/28/25 2144Z  | 10/31/25 2330Z  |  | !HLN 09/105 HLN AD AP BIRD ACT MIGRATORY  2509282144-2510312330 | 
							
								9/2/25 2007Z  | 11/30/25 2300Z  | Runway | !HLN 09/015 HLN RWY 05 SIGNS LGT U/S 2509022007-2511302300 | 
							
								9/2/25 2006Z  | 11/30/25 2300Z  | Runway | !HLN 09/014 HLN RWY 05/23 REDL U/S 2509022006-2511302300 | 
							
								9/2/25 2005Z  | 11/30/25 0900Z  | Runway | !HLN 09/013 HLN RWY 05/23 CLSD DLY SS-SR 2509022005-2511300900 | 
							
								7/29/25 1516Z  | 7/31/26 2200Z  |  | !HLN 07/180 HLN APRON NTL GUARD AND FOREST SERVICE HVY RAMP, MNG HEL RAMP CLSD FOR TRANSIENT ACFT 2507291516-2607312200 | 
							
								| FDC | 
							
								10/29/25 1500Z  | 11/5/25 2109Z  |  | !FDC 5/7869 HLN ODP HELENA RGNL, HELENA, MT. DIVIDE TWO DEPARTURE ... DEPARTURE PROCEDURE NA EXCEPT FOR ACFT EQUIPPED WITH SUITABLE RNAV SYSTEM WITH GPS. ALL OTHER DATA REMAINS AS PUBLISHED, HLN VORTAC OUT OF SERVICE. 2510291500-2511052109EST | 
							
								10/29/25 1500Z  | 11/5/25 2109Z  |  | !FDC 5/7868 HLN IAP HELENA RGNL, HELENA, MT. ILS Y OR LOC Y RWY 27, AMDT 4... ILS Z OR LOC Z RWY 27, AMDT 3... LOC BC -C, AMDT 6... PROCEDURE NA EXCEPT FOR AIRCRAFT EQUIPPED WITH SUITABLE RNAV SYSTEM WITH GPS, HLN VORTAC OUT OF SERVICE. 2510291500-2511052109EST | 
							
								10/29/25 1500Z  | 11/5/25 2109Z  |  | !FDC 5/7867 HLN SID HELENA RGNL, HELENA, MT. HELENA FIVE DEPARTURE... SIEBE FOUR DEPARTURE... STAKK FIVE DEPARTURE... DEPARTURE PROCEDURE NA EXCEPT FOR ACFT EQUIPPED WITH SUITABLE RNAV SYSTEM WITH GPS, HLN VORTAC OUT OF SERVICE. 2510291500-2511052109EST | 
							
								1/25/24 0901Z  |  |  | !FDC 4/7342 HLN IAP HELENA RGNL, HELENA, MT. RNAV (RNP) Z RWY 27, AMDT 2... CHANGE NOTE TO READ: FOR INOPERATIVE ALS, INCREASE RNP 0.13 DA* VISIBILITY ALL CATS TO 7/8 SM, RNP 0.30 DA# VISIBILITY ALL CATS TO 1 3/8 SM. 2401250901-2601261654EST |