| California Redwood Coast-Humboldt County (ACV) | Arcata | CA | Portland International to California Redwood Coast-Humboldt County |
| Ashland Municipal-Sumner Parker Field (AHM) | Ashland | OR | Portland International to Ashland Municipal-Sumner Parker Field |
| Walla Walla Regional (ALW) | Walla Walla | WA | Portland International to Walla Walla Regional |
| Nakusp (AQ5) | Nakusp | BC | Portland International to Nakusp |
| Astoria Regional (AST) | Astoria | OR | Portland International to Astoria Regional |
| Oliver (AU3) | Oliver | BC | Portland International to Oliver |
| Cache Creek (AZ5) | Cache-Creek | BC | Portland International to Cache Creek |
| Bandon State (BDY) | Bandon | OR | Portland International to Bandon State |
| King County International Boeing Field (BFI) | Seattle | WA | Portland International to King County International Boeing Field |
| Echo Valley (BJ4) | Echo Valley | BC | Portland International to Echo Valley |
| Baker City Municipal (BKE) | Baker City | OR | Portland International to Baker City Municipal |
| Bellingham International (BLI) | Bellingham | WA | Portland International to Bellingham International |
| Burns Municipal (BNO) | Burns | OR | Portland International to Burns Municipal |
| Boise Air Terminal Gowen Field (BOI) | Boise | ID | Portland International to Boise Air Terminal Gowen Field |
| Brookings Airport (BOK) | Brookings | OR | Portland International to Brookings Airport |
| Del Norte Co Regional/Jack Mcnamara Field (CEC) | Crescent City | CA | Portland International to Del Norte Co Regional/Jack Mcnamara Field |
| Creston Valley Regional (CFQ) | Creston | BC | Portland International to Creston Valley Regional |
| Chiloquin State (CHZ) | Chiloquin | OR | Portland International to Chiloquin State |
| William R Fairchild International (CLM) | Port Angeles | WA | Portland International to William R Fairchild International |
| Chehalis-Centralia (CLS) | Chehalis | WA | Portland International to Chehalis-Centralia |
| Coeur D'alene/Pappy Boyington Field (COE) | Coeur D'Alene | ID | Portland International to Coeur D'alene/Pappy Boyington Field |
| Corvallis Municipal (CVO) | Corvallis | OR | Portland International to Corvallis Municipal |
| Douglas Lake (DGF) | Douglas Lake | BC | Portland International to Douglas Lake |
| The Dalles Municipal/Columbia Gorge Regional (DLS) | The Dalles | OR | Portland International to The Dalles Municipal/Columbia Gorge Regional |
| Pangborn Memorial (EAT) | Wenatchee | WA | Portland International to Pangborn Memorial |
| Eureka/Murray Field (EKA) | Eureka | CA | Portland International to Eureka/Murray Field |
| Bowers Field (ELN) | Ellensburg | WA | Portland International to Bowers Field |
| Ephrata Municipal (EPH) | Ephrata | WA | Portland International to Ephrata Municipal |
| Orcas Island Airport (ESD) | Eastsound | WA | Portland International to Orcas Island Airport |
| Mahlon Sweet Field (EUG) | Eugene | OR | Portland International to Mahlon Sweet Field |
| Friday Harbor (FRD) | Friday Harbor | WA | Portland International to Friday Harbor |
| Grand Coulee Dam (GCD) | Electric City | WA | Portland International to Grand Coulee Dam |
| Spokane International (GEG) | Spokane | WA | Portland International to Spokane International |
| Gansner Field (GNF) | Quincy | CA | Portland International to Gansner Field |
| Gold Beach Municipal (GOL) | Gold Beach | OR | Portland International to Gold Beach Municipal |
| Grants Pass (GTP) | Grants Pass | OR | Portland International to Grants Pass |
| Hermiston Municipal (HES) | Hermiston | OR | Portland International to Hermiston Municipal |
| Bowerman (HQM) | Hoquiam | WA | Portland International to Bowerman |
| Cascade (ICS) | Cascade | ID | Portland International to Cascade |
| Grant County Regional/Ogilvie Field (JDA) | John Day | OR | Portland International to Grant County Regional/Ogilvie Field |
| La Grande/Union County (LGD) | La Grande | OR | Portland International to La Grande/Union County |
| Lake County (LKV) | Lakeview | OR | Portland International to Lake County |
| Crater Lake-Klamath Regional (LMT) | Klamath Falls | OR | Portland International to Crater Lake-Klamath Regional |
| Lopez Island Airport (LPS) | Lopez | WA | Portland International to Lopez Island Airport |
| Lewiston-Nez Perce County (LWS) | Lewiston | ID | Portland International to Lewiston-Nez Perce County |
| Madras Municipal (MDJ) | Madras | OR | Portland International to Madras Municipal |
| Medford/Rogue Valley International (MFR) | Medford | OR | Portland International to Medford/Rogue Valley International |
| Skagit Regional (MVW) | Burlington | WA | Portland International to Skagit Regional |
| Grant County International (MWH) | Moses Lake | WA | Portland International to Grant County International |
| Mccall Municipal (MYL) | Mc Call | ID | Portland International to Mccall Municipal |
| Aj Eisenberg (ODW) | Oak Harbor | WA | Portland International to Aj Eisenberg |
| Olympia Regional (OLM) | Olympia | WA | Portland International to Olympia Regional |
| Omak (OMK) | Omak | WA | Portland International to Omak |
| Ontario Municipal (ONO) | Ontario | OR | Portland International to Ontario Municipal |
| Newport Municipal (ONP) | Newport | OR | Portland International to Newport Municipal |
| Southwest Oregon Regional (OTH) | North Bend | OR | Portland International to Southwest Oregon Regional |
| Tillamook (OTK) | Tillamook | OR | Portland International to Tillamook |
| Anacortes (OTS) | Anacortes | WA | Portland International to Anacortes |
| Snohomish County/Paine Field (PAE) | Everett | WA | Portland International to Snohomish County/Paine Field |
| Eastern Oregon Regional Pendleton (PDT) | Pendleton | OR | Portland International to Eastern Oregon Regional Pendleton |
| Prineville (PRZ) | Prineville | OR | Portland International to Prineville |
| Tri-Cities (PSC) | Pasco | WA | Portland International to Tri-Cities |
| Pullman/Moscow Regional (PUW) | Pullman | WA | Portland International to Pullman/Moscow Regional |
| Bremerton National (PWT) | Bremerton | WA | Portland International to Bremerton National |
| Roseburg Regional (RBG) | Roseburg | OR | Portland International to Roseburg Regional |
| Red Bluff Municipal (RBL) | Red Bluff | CA | Portland International to Red Bluff Municipal |
| Redding Municipal (RDD) | Redding | CA | Portland International to Redding Municipal |
| Roberts Field (RDM) | Redmond | OR | Portland International to Roberts Field |
| Montague-Yreka Rohrer Field (RKC) | Montague | CA | Portland International to Montague-Yreka Rohrer Field |
| Richland (RLD) | Richland | WA | Portland International to Richland |
| Renton Municipal (RNT) | Renton | WA | Portland International to Renton Municipal |
| Seattle Tacoma International (SEA) | Seattle | WA | Portland International to Seattle Tacoma International |
| Felts Field (SFF) | Spokane | WA | Portland International to Felts Field |
| Sanderson Field (SHN) | Shelton | WA | Portland International to Sanderson Field |
| Siskiyou County (SIY) | Montague | CA | Portland International to Siskiyou County |
| Salem Municipal/Mcnary Field (SLE) | Salem | OR | Portland International to Salem Municipal/Mcnary Field |
| Sequim Valley (SQV) | Sequim | WA | Portland International to Sequim Valley |
| Sunriver (SUO) | Sunriver | OR | Portland International to Sunriver |
| Susanville Municipal (SVE) | Susanville | CA | Portland International to Susanville Municipal |
| Ed Carlson Memorial Field - South Lewis County (TDO) | Toledo | WA | Portland International to Ed Carlson Memorial Field - South Lewis County |
| Tacoma Narrows (TIW) | Tacoma | WA | Portland International to Tacoma Narrows |
| Jefferson County International (TWD) | Port Townsend | WA | Portland International to Jefferson County International |
| Quillayute (UIL) | Quillayute | WA | Portland International to Quillayute |
| Winnemucca Municipal (WMC) | Winnemucca | NV | Portland International to Winnemucca Municipal |
| Qualicum Beach (XQU) | Qualicum Beach | BC | Portland International to Qualicum Beach |
| Tofino (YAZ) | Tofino | BC | Portland International to Tofino |
| Campbell River (YBL) | Campbell River | BC | Portland International to Campbell River |
| Nanaimo (YCD) | Nanaimo | BC | Portland International to Nanaimo |
| West Kootenay Regional (YCG) | Castlegar | BC | Portland International to West Kootenay Regional |
| Chilliwack (YCW) | Chilliwack | BC | Portland International to Chilliwack |
| Princeton Regional (YDC) | Princeton | BC | Portland International to Princeton Regional |
| Texada Gillies Bay (YGB) | Texada Gillies Bay | BC | Portland International to Texada Gillies Bay |
| Kamloops (YKA) | Kamloops | BC | Portland International to Kamloops |
| Yakima Air Terminal/Mcallister Field (YKM) | Yakima | WA | Portland International to Yakima Air Terminal/Mcallister Field |
| Lillooet (YLI) | Lillooet | BC | Portland International to Lillooet |
| Kelowna International (YLW) | Kelowna | BC | Portland International to Kelowna International |
| Merritt (YMB) | Merritt | BC | Portland International to Merritt |
| Alberni Valley Regional/Port Alberni (YPB) | Port Alberni | BC | Portland International to Alberni Valley Regional/Port Alberni |
| Pitt Meadows Regional (YPK) | Pitt Meadows | BC | Portland International to Pitt Meadows Regional |
| Powell River (YPW) | Powell River | BC | Portland International to Powell River |
| Comox (YQQ) | Comox | BC | Portland International to Comox |
| Squamish (YSE) | Squamish | | Portland International to Squamish |
| Shuswap Regional (YSN) | Salmon Arm | BC | Portland International to Shuswap Regional |
| Vernon (YVE) | Vernon | BC | Portland International to Vernon |
| Vancouver International (YVR) | Vancouver | BC | Portland International to Vancouver International |
| Abbotsford International (YXX) | Abbotsford | BC | Portland International to Abbotsford International |
| Penticton Regional (YYF) | Penticton | BC | Portland International to Penticton Regional |
| Victoria International (YYJ) | Victoria | BC | Portland International to Victoria International |
| Trail (YZZ) | Trail | BC | Portland International to Trail |
| Grand Forks (ZGF) | Grand Forks | BC | Portland International to Grand Forks |
| Nelson (ZNL) | Nelson | BC | Portland International to Nelson |
