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Airlines Served Seattle Airport SEA

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Your Guide to Airlines Serving Seattle Tacoma Airport

Seattle Tacoma Airport (SEA), also known as Sea-Tac Airport, stands as a crucial hub in the United States aviation network. It is the primary base for Alaska Airlines and a key site for Delta Air Lines, while also serving as a focus city for Southwest Airlines and Horizon Air. Facilitating over 500 daily flights to upwards of 90 nonstop destinations, it is an essential gateway to the Pacific Northwest and beyond.

Alaska Airlines

Alaska Airlines, the flagship carrier of the Pacific Northwest, orchestrates more than 300 daily departures from the airport to a diverse array of over 60 nonstop destinations throughout North America, including sought-after locales like Hawaii, Mexico, and Costa Rica. Operations are primarily conducted from the North Satellite Terminal and the South Satellite Terminal. For travelers looking for added comfort, Alaska offers premium seating options and a generous mileage program, enhancing the travel experience.

Delta Air Lines

Delta Air Lines ensures a robust presence at SEA, with over 100 daily departures to more than 30 nonstop destinations across North America, Mexico, and Asia. Its operations are centralized in the South Satellite Terminal. Delta is renowned for its extensive global network, offering passengers a wide range of international connections and a comprehensive frequent flyer program to make the most out of their travels.

Southwest Airlines

With over 50 daily flights from SEA to more than 20 nonstop destinations across North America, including Hawaii and Mexico, Southwest Airlines is a popular choice for budget-conscious travelers. Operations are based out of the Main Terminal. Southwest is known for its two free checked bags policy and flexible change policies, providing a hassle-free travel experience.

Horizon Air

A subsidiary of Alaska Airlines, Horizon Air connects SEA with over 50 daily flights to more than 20 nonstop destinations throughout the Pacific Northwest and Western Canada, operating from the North Satellite Terminal. Horizon Air offers passengers unique regional travel experiences with exceptional service and access to Alaska Airlines' broader network.

Other Airlines

In addition to Alaska Airlines, Delta Air Lines, Southwest Airlines, and Horizon Air, Seattle Tacoma Airport (SEA) is served by several other notable airlines, ensuring a broad selection of destinations and services for travelers. Some of these include:

  • American Airlines: Offers extensive flight options across the United States and international destinations, known for its Admirals Club lounges.
  • United Airlines: Provides a wide network of flights from SEA, including domestic and international routes, with a strong presence in the Asia-Pacific region.
  • JetBlue Airways: Known for its comfortable seating and complimentary in-flight entertainment, JetBlue offers routes across the United States from SEA.
  • Air Canada: Connects Seattle with key Canadian cities and offers extended networks to Europe and Asia, appreciated for its Maple Leaf Lounge.

It's important to note that the information provided here is subject to change. For the most current details, including specific airlines' terminal locations, please refer to the complete list of airlines served by the airport:

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Tips, Help & Resources

After reviewing the provided list of airlines serving Seattle Tacoma Airport, here are some helpful links that can aid you on your air travel journey: 

Seattle Tacoma Airport airlines served Q&A

Alaska Airlines leads with more than 300 daily departures, followed by Delta Air Lines with over 100 daily flights, and Southwest Airlines with more than 50 daily flights.
Yes, several airlines, including Delta Air Lines and Air Canada, offer nonstop flights to international destinations such as Mexico, Asia, Canada, and Europe.
Southwest Airlines is known for its budget-conscious approach, offering over 50 daily flights to more than 20 nonstop destinations across North America, including a policy of two free checked bags and flexible change policies.
Alaska Airlines offers premium seating options and a generous mileage program. Delta Air Lines is also known for its comprehensive frequent flyer program and wide range of international connections.
Horizon Air, a subsidiary of Alaska Airlines, connects the airport with over 50 daily flights to more than 20 nonstop destinations throughout the Pacific Northwest and Western Canada, offering unique regional travel experiences.
Delta Air Lines' operations are centralized in the South Satellite Terminal at the airport.
Yes, for example, Southwest Airlines is known for its two free checked bags policy and flexible change policies. JetBlue Airways is recognized for its comfortable seating and complimentary in-flight entertainment.