Airlines at Portland International Airport (PDX)

Currently, 19 airlines operate at the Portland International Airport (PDX), offering domestic and international flights to over 70 destinations across North America, Europe, and Asia. Alaska Airlines is the dominant carrier at the PDX Airport, catering to over 90 destinations within the US.

This guide details the flights by terminal and relevant contact information, from full-service to low-cost airlines at Portland Airport (PDX).

List of Airlines at Portland International Airport (PDX) By Terminal

The airlines operate from a single terminal of PDX Airport and are divided into four concourses: B, C, D, and E. Alaska Airlines has its presence across Concourses B and C, offering the majority of flights. Recently, SeaPort Airlines has operated in 2025, regional commuter flights from PDX to Seattle (SEA). JSX, Boutique Air, and SeaPort airlines use private terminal/FBOs.

PDX also serves low-cost carriers like Southwest and Frontier that offer service to destinations like Chicago, Denver Airport, and Las Vegas Airport. Here’s the list of carriers by concourse below:

Concourse B

Concourse B of PDX is primarily a hub for Alaska Airlines. This concourse operates short-haul domestic flights with 10 gates. Below is the list of regional and select domestic flights from Concourse B of PDX:

• Alaska Airlines
• Horizon Air

Concourse C

Concourse C of Portland Airport is also dominated by Alaska Airlines. In addition, American Airlines, Hawaiian Airlines, and JetBlue also operate from here. Below is the table outlining the Portland Airport flights from Concourse C:

• Alaska Airlines
• American Airlines
• Hawaiian Airlines
• JetBlue Airways

Concourse D

Concourse D is the primary hub for Delta Air Lines with full-service and also low-cost domestic airlines. It is a hub for Southwest, Frontier, and Spirit airlines, which offer cheap flights to U.S cities like Las Vegas (LAS), Denver (DEN), Los Angeles (LAX), San Francisco (SFO), Phoenix (PHX), and Oakland (OAK).

• Delta Air Lines
• Southwest Airlines
• Frontier Airlines
• Spirit Airlines
• Sun Country Airlines

Concourse E

Concourse E of PDX operates international as well as transborder flights, serving cities such as Canada, Mexico, and Europe. It is a primary base for United Airlines at Portland Airport. The concourse is the hub for United Airlines, offering services to cities like Chicago, Denver, Houston, Newark (EWR), and San Francisco.

• Air Canada
• British Airways
• Condor
• Icelandair
• United Airlines
• Volaris

Portland Airport is a passenger-friendly hub serving international flights and domestic carriers to over 70 destinations worldwide. Alaska Airlines is the dominant carrier at Concourses B and C. Meanwhile, the ultra-low-cost carriers like Southwest and Spirit operate from Concourse D. With the diverse Portland airport flights, the airport remains a preferred choice for passengers seeking connectivity.

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