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SeaPort Airlines Legacy Carrier illustrationLegacy Carrier
Airlines
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SeaPort Airlines

United States · SASQUATCH
39
Routes
6
Hubs
SQH
ICAO
K5
IATA
AirlinesAirports profile

Connecting remote communities across the Pacific Northwest.

Founded
1997
Headquarters
Portland, United States
SeaPort Airlines was a regional airline based in the United States that specialized in providing essential air service to small, underserved communities primarily in the Pacific Northwest and Mid-South regions. Operating under the Essential Air Service (EAS) program, it connected rural towns and cities that would otherwise lack reliable commercial air access. The airline operated a fleet of small turboprop aircraft, offering scheduled passenger service to destinations in Oregon, Arkansas, Tennessee, and other states. It partnered with major carriers to provide connecting itineraries for passengers traveling beyond its network. SeaPort Airlines ceased operations in 2016 after facing financial difficulties and challenges common to small regional carriers, including thin margins and high operating costs relative to passenger demand on thin-route markets.
Hubs & network
SeaPort Airlines operated primarily out of Portland International Airport (PDX) in Oregon, with additional service bases in Arkansas and Tennessee.
Fleet
SeaPort Airlines operated Cessna 208 Caravan and Pilatus PC-12 single-engine turboprop aircraft suited for short-haul, small-capacity regional routes.
Notable facts
  • ›SeaPort Airlines operated under the U.S. Essential Air Service (EAS) program, which subsidizes service to rural communities.
  • ›The airline used the ICAO callsign 'SASQUATCH,' a nod to the Pacific Northwest folklore icon.
  • ›SeaPort ceased all operations in March 2016 after financial challenges became insurmountable.
  • ›The airline served small communities in Oregon, Arkansas, Tennessee, and Nebraska, among other states.
  • ›SeaPort was known for operating some of the smallest commercial aircraft in scheduled U.S. airline service.
This profile is provided for general information only. Contact details may be inaccurate or outdated — always verify with the airline's official website before acting on them.

Route network map (39 legs)

Leaflet © OpenStreetMap © CARTO

Route network

BNA → AHNCNC
BNA → MKLCNC
ELD → DALCNC
BUR → IPLCNC
ELD → HOTCNC
HNH → GSTCNC
IPL → BURCNC
IPL → SANCNC
JNU → HNSCN1 CNC
MCI → SLNCNC
MEM → HOTCNC
PDT → PDXCNC
PDX → OTHCNC
SAN → IPLCNC
GST → HNHCNC
GST → JNUCN1 CNC
HNS → JNUCNC CN1
HRO → MEMCNC
SGY → HNSCNC
HNH → JNUCNC CN1
HNS → SGYCNC
HOT → MEMCNC
HRO → MCICNC
JNU → SGYCNC CN1
MCI → HROCNC
MKL → MEMCNC
SLN → MCICNC
AHN → BNACNC
DAL → ELDCNC
HOT → ELDCNC
JNU → GSTCNC CN1
JNU → HNHCNC CN1
MEM → ELDCNC
MEM → HROCNC
MEM → MKLCNC
MKL → BNACNC
OTH → PDXCNC
PDX → PDTCNC
SGY → JNUCNC CN1

Fleet (aircraft types operated)

SeaPort Airlines
Encyclopaedia

SeaPort Airlines is an American airline with daily commuter flights between Seattle and Portland, Oregon, and between Seattle and Spokane, Washington. The airline, which is a sister company of regional airline Alaska Seaplanes, is a division of Kalinin Holdings, Inc., a closely held family business headquartered in Juneau, Alaska, that owns a group of commuter airlines and tourism operations. SeaPort returned on May 20, 2025 under a new leadership team to Pacific Northwest skies following the previous company's closure in 2016.

Read full article on Wikipedia

Entity data from open aviation datasets (OurAirports, OpenFlights) with AI-assisted editorial clearly marked. Always confirm time-sensitive details with the official airline website. Sources & verification