| Invermere (AA8) | Invermere | BC | Helena Regional to Invermere |
| Afton Municipal (AFO) | Afton | WY | Helena Regional to Afton Municipal |
| Cayley/A J Flying Ranch (AJ7) | Cayley | AB | Helena Regional to Cayley/A J Flying Ranch |
| Walla Walla Regional (ALW) | Walla Walla | WA | Helena Regional to Walla Walla Regional |
| Nakusp (AQ5) | Nakusp | BC | Helena Regional to Nakusp |
| Oliver (AU3) | Oliver | BC | Helena Regional to Oliver |
| Billings Logan International (BIL) | Billings | MT | Helena Regional to Billings Logan International |
| Baker City Municipal (BKE) | Baker City | OR | Helena Regional to Baker City Municipal |
| Brigham City Regional (BMC) | Brigham City | UT | Helena Regional to Brigham City Regional |
| Burns Municipal (BNO) | Burns | OR | Helena Regional to Burns Municipal |
| Boise Air Terminal Gowen Field (BOI) | Boise | ID | Helena Regional to Boise Air Terminal Gowen Field |
| Miley Memorial Field (Big Piney) (BPI) | Big Piney | WY | Helena Regional to Miley Memorial Field (Big Piney) |
| Kaslo (BR2) | Kaslo | BC | Helena Regional to Kaslo |
| Skypark (BTF) | Bountiful | UT | Helena Regional to Skypark |
| Bert Mooney (BTM) | Butte | MT | Helena Regional to Bert Mooney |
| Johnson County (BYG) | Buffalo | WY | Helena Regional to Johnson County |
| Burley Municipal (BYI) | Burley | ID | Helena Regional to Burley Municipal |
| Bozeman Yellowstone International (BZN) | Bozeman | MT | Helena Regional to Bozeman Yellowstone International |
| Creston Valley Regional (CFQ) | Creston | BC | Helena Regional to Creston Valley Regional |
| Challis (CHL) | Challis | ID | Helena Regional to Challis |
| Yellowstone Regional (COD) | Cody | WY | Helena Regional to Yellowstone Regional |
| Coeur D'alene/Pappy Boyington Field (COE) | Coeur D'Alene | ID | Helena Regional to Coeur D'alene/Pappy Boyington Field |
| Casper/Natrona County International (CPR) | Casper | WY | Helena Regional to Casper/Natrona County International |
| Cut Bank International (CTB) | Cut Bank | MT | Helena Regional to Cut Bank International |
| Dillon (DLN) | Dillon | MT | Helena Regional to Dillon |
| Olds-Didsbury (EA3) | Olds-Didsbury | AB | Helena Regional to Olds-Didsbury |
| Cardston (EA6) | Cardston | AB | Helena Regional to Cardston |
| Pangborn Memorial (EAT) | Wenatchee | WA | Helena Regional to Pangborn Memorial |
| Oyen Municipal (ED3) | Oyen | AB | Helena Regional to Oyen Municipal |
| Taber (ED5) | Taber | AB | Helena Regional to Taber |
| Bow Island (EF3) | Bow Island | AB | Helena Regional to Bow Island |
| Airdrie (EF4) | Airdrie | AB | Helena Regional to Airdrie |
| Drumheller Municipal (EG4) | Drumheller | AB | Helena Regional to Drumheller Municipal |
| South Calgary (EH4) | De Winton | AB | Helena Regional to South Calgary |
| Stettler (EJ3) | Stettler | AB | Helena Regional to Stettler |
| Claresholm Industrial (EJ4) | Claresholm | AB | Helena Regional to Claresholm Industrial |
| Hanna (EL4) | Hanna | AB | Helena Regional to Hanna |
| Innisfail (EM4) | Innisfail | AB | Helena Regional to Innisfail |
| Kemmerer Municipal (EMM) | Kemmerer | WY | Helena Regional to Kemmerer Municipal |
| Three Hills (EN3) | Three Hills | AB | Helena Regional to Three Hills |
| High River (EN4) | High River | AB | Helena Regional to High River |
| Ephrata Municipal (EPH) | Ephrata | WA | Helena Regional to Ephrata Municipal |
| Castor (ER2) | Castor | AB | Helena Regional to Castor |
| Evanston-Uinta County Burns Field (EVW) | Evanston | WY | Helena Regional to Evanston-Uinta County Burns Field |
| Fort Macleod (EY3) | Fort Macleod | AB | Helena Regional to Fort Macleod |
| Fort Bridger Airport (FBR) | Fort Bridger | WY | Helena Regional to Fort Bridger Airport |
| Glacier Park International (FCA) | Kalispell | MT | Helena Regional to Glacier Park International |
| Foremost (FD4) | Foremost | AB | Helena Regional to Foremost |
| Consort (FG3) | Consort | AB | Helena Regional to Consort |
| Empress (FL2) | Empress | AB | Helena Regional to Empress |
| Okotoks Air Ranch (FX2) | Calgary | AB | Helena Regional to Okotoks Air Ranch |
| Gillette-Campbell County (GCC) | Gillette | WY | Helena Regional to Gillette-Campbell County |
| Grand Coulee Dam (GCD) | Electric City | WA | Helena Regional to Grand Coulee Dam |
| Dawson Community (GDV) | Glendive | MT | Helena Regional to Dawson Community |
| Spokane International (GEG) | Spokane | WA | Helena Regional to Spokane International |
| South Big Horn County (GEY) | Greybull | WY | Helena Regional to South Big Horn County |
| Wokal Field/Glasgow International (GGW) | Glasgow | MT | Helena Regional to Wokal Field/Glasgow International |
| Gooding Municipal (GNG) | Gooding | ID | Helena Regional to Gooding Municipal |
| Great Falls International (GTF) | Great Falls | MT | Helena Regional to Great Falls International |
| Hermiston Municipal (HES) | Hermiston | OR | Helena Regional to Hermiston Municipal |
| Havre City-County (HVR) | Havre | MT | Helena Regional to Havre City-County |
| Cascade (ICS) | Cascade | ID | Helena Regional to Cascade |
| Idaho Falls Regional (IDA) | Idaho Falls | ID | Helena Regional to Idaho Falls Regional |
| Williston/Sloulin Field International (ISN) | Williston | ND | Helena Regional to Williston/Sloulin Field International |
| Jackson Hole (JAC) | Jackson | WY | Helena Regional to Jackson Hole |
| Kyle (JB8) | Kyle | SK | Helena Regional to Kyle |
| Shaunavon (JC5) | Shaunavon | SK | Helena Regional to Shaunavon |
| Leader (JD5) | Leader | SK | Helena Regional to Leader |
| Grant County Regional/Ogilvie Field (JDA) | John Day | OR | Helena Regional to Grant County Regional/Ogilvie Field |
| Jordan (JDN) | Jordan | MT | Helena Regional to Jordan |
| Frontier (JM5) | Frontier | SK | Helena Regional to Frontier |
| Maple Creek (JQ4) | Maple Creek | SK | Helena Regional to Maple Creek |
| Luseland (JR2) | Luseland | SK | Helena Regional to Luseland |
| Eston (JR4) | Eston | SK | Helena Regional to Eston |
| Jackpot/Hayden Field (KPT) | Jackpot | NV | Helena Regional to Jackpot/Hayden Field |
| Lucky Lake (KQ5) | Lucky Lake | SK | Helena Regional to Lucky Lake |
| La Grande/Union County (LGD) | La Grande | OR | Helena Regional to La Grande/Union County |
| Logan-Cache (LGU) | Logan | UT | Helena Regional to Logan-Cache |
| Hunt Field (LND) | Lander | WY | Helena Regional to Hunt Field |
| Mission Field (LVM) | Livingston | MT | Helena Regional to Mission Field |
| Lewiston-Nez Perce County (LWS) | Lewiston | ID | Helena Regional to Lewiston-Nez Perce County |
| Lewistown Municipal (LWT) | Lewistown | MT | Helena Regional to Lewistown Municipal |
| Malad City (MLD) | Malad City | ID | Helena Regional to Malad City |
| Malta (MLK) | Malta | MT | Helena Regional to Malta |
| Frank Wiley Field (MLS) | Miles City | MT | Helena Regional to Frank Wiley Field |
| Missoula International (MSO) | Missoula | MT | Helena Regional to Missoula International |
| Grant County International (MWH) | Moses Lake | WA | Helena Regional to Grant County International |
| Mccall Municipal (MYL) | Mc Call | ID | Helena Regional to Mccall Municipal |
| Ogden/Hinckley (OGD) | Ogden | UT | Helena Regional to Ogden/Hinckley |
| L M Clayton (OLF) | Wolf Point | MT | Helena Regional to L M Clayton |
| Omak (OMK) | Omak | WA | Helena Regional to Omak |
| Ontario Municipal (ONO) | Ontario | OR | Helena Regional to Ontario Municipal |
| Eastern Oregon Regional Pendleton (PDT) | Pendleton | OR | Helena Regional to Eastern Oregon Regional Pendleton |
| Pocatello Regional (PIH) | Pocatello | ID | Helena Regional to Pocatello Regional |
| Powell Municipal (POY) | Powell | WY | Helena Regional to Powell Municipal |
| Tri-Cities (PSC) | Pasco | WA | Helena Regional to Tri-Cities |
| Pullman/Moscow Regional (PUW) | Pullman | WA | Helena Regional to Pullman/Moscow Regional |
| Sher-Wood (PWD) | Plentywood | MT | Helena Regional to Sher-Wood |
| Riverton Regional (RIW) | Riverton | WY | Helena Regional to Riverton Regional |
| Rock Springs Sweetwater County (RKS) | Rock Springs | WY | Helena Regional to Rock Springs Sweetwater County |
| Richland (RLD) | Richland | WA | Helena Regional to Richland |
| Roundup (RPX) | Roundup | MT | Helena Regional to Roundup |
| Rexburg-Madison County (RXE) | Rexburg | ID | Helena Regional to Rexburg-Madison County |
| Shelby (SBX) | Shelby | MT | Helena Regional to Shelby |
| Sidney-Richland Regional (SDY) | Sidney | MT | Helena Regional to Sidney-Richland Regional |
| Felts Field (SFF) | Spokane | WA | Helena Regional to Felts Field |
| Sheridan County (SHR) | Sheridan | WY | Helena Regional to Sheridan County |
| Lemhi County (SMN) | Salmon | ID | Helena Regional to Lemhi County |
| Friedman Memorial (SUN) | Hailey | ID | Helena Regional to Friedman Memorial |
| Hot Springs County-Thermopolis Municipal (THP) | Thermopolis | WY | Helena Regional to Hot Springs County-Thermopolis Municipal |
| Magic Valley Regional/Joslin Field (TWF) | Twin Falls | ID | Helena Regional to Magic Valley Regional/Joslin Field |
| Pincher Creek (WPC) | Pincher Creek | AB | Helena Regional to Pincher Creek |
| Worland Municipal (WRL) | Worland | WY | Helena Regional to Worland Municipal |
| Yellowstone (WYS) | West Yellowstone | MT | Helena Regional to Yellowstone |
| Calgary/Springbank (YBW) | Calgary | AB | Helena Regional to Calgary/Springbank |
| West Kootenay Regional (YCG) | Castlegar | BC | Helena Regional to West Kootenay Regional |
| Coronation (YCT) | Coronation | AB | Helena Regional to Coronation |
| Fairmont Hot Springs (YCZ) | Fairmont Hot Springs | BC | Helena Regional to Fairmont Hot Springs |
| Golden (YGE) | Golden | BC | Helena Regional to Golden |
| Kindersley (YKY) | Kindersley | SK | Helena Regional to Kindersley |
| Moose Jaw Air Vice Marshal C M Mcewen (YMJ) | Moose Jaw | SK | Helena Regional to Moose Jaw Air Vice Marshal C M Mcewen |
| Red Deer Regional (YQF) | Red Deer | AB | Helena Regional to Red Deer Regional |
| Lethbridge (YQL) | Lethbridge | AB | Helena Regional to Lethbridge |
| Sparwood Elk Valley (YSW) | Sparwood | BC | Helena Regional to Sparwood Elk Valley |
| Canadian Rockies/Cranbrook Intl (YXC) | Cranbrook | BC | Helena Regional to Canadian Rockies/Cranbrook Intl |
| Medicine Hat (YXH) | Medicine Hat | AB | Helena Regional to Medicine Hat |
| Calgary International (YYC) | Calgary | AB | Helena Regional to Calgary International |
| Penticton Regional (YYF) | Penticton | BC | Helena Regional to Penticton Regional |
| Swift Current (YYN) | Swift Current | SK | Helena Regional to Swift Current |
| Trail (YZZ) | Trail | BC | Helena Regional to Trail |
| Grand Forks (ZGF) | Grand Forks | BC | Helena Regional to Grand Forks |
| Nelson (ZNL) | Nelson | BC | Helena Regional to Nelson |
