
Spokane International Airport (GEG) and Seattle–Tacoma International Airport (SEA) are two airports in the US state of Washington. Spokane International Airport, also known as Sunset Field before 1941, is the largest commercial/public airport in Washington state in terms of land area, covering 6,140 acres. Seattle–Tacoma International Airport, on the other hand, is the busiest airport in the Pacific Northwest region, covering 2,500 acres and serving 91 domestic and 28 international destinations.
Spokane International Airport (GEG) and Seattle–Tacoma International Airport (SEA)
| Characteristics | Values |
|---|---|
| Airport name | Spokane International Airport |
| Airport code | GEG |
| Location | Spokane, Washington |
| Land area | 6,140 acres (9.6 sq mi; 24.8 km2) |
| History | Known as Sunset Field before 1941, it was purchased by the War Department and renamed Geiger Field after Major Harold Geiger, an Army aviation pioneer. |
| Current status | Undergoing renovation and expansion, with Phase 1 of the Terminal Renovation and Expansion (TREX) program having started in October 2022 |
| --- | --- |
| Airport name | Seattle–Tacoma International Airport |
| Airport code | SEA |
| Location | City of SeaTac, Washington |
| Land area | 2,500 acres (1,000 hectares) |
| Number of runways | 3 |
| Primary hub | Alaska Airlines |
| Number of airlines | 31 as of 2022 |
| Destinations served | 91 domestic and 28 international destinations in North America, Oceania, Europe, the Middle East, and Asia |
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What You'll Learn
- Spokane International Airport (GEG) is the largest commercial/public airport in Washington state
- GEG was known as Sunset Field before 1941 and was renamed after Major Harold Geiger
- GEG is currently undergoing a Terminal Renovation and Expansion (TREX) program
- Seattle–Tacoma International Airport (IATA: SEA) is the primary airport serving Seattle and its surrounding areas
- SEA is the busiest airport in the Pacific Northwest region of North America

Spokane International Airport (GEG) is the largest commercial/public airport in Washington state
Spokane International Airport (GEG) is a commercial airport in Spokane, Washington. It is the largest commercial/public airport in Washington state in terms of land area, covering 6,140 acres (9.6 sq mi; 24.8 km2). The airport is located approximately 7 miles (11 km) west-southwest of Downtown Spokane and serves as the primary airport for the Inland Northwest, which includes 30 counties and areas such as Spokane, the Tri-Cities in Eastern Washington, and Coeur d'Alene in North Idaho.
The airport's code, GEG, is derived from its former name, Geiger Field, which honoured Major Harold Geiger, an Army aviation pioneer who died in a plane crash in 1927. During World War II, Geiger Field served as a major training base for the Second Air Force and was used for aircraft maintenance and supply by the Air Technical Service Command. Spokane International Airport has undergone several expansions and renovations over the years, with the current Concourse A and B complex opening in 1965 and a second level added in 1974.
As of 2015, Spokane International Airport ranked as the 70th busiest airport in the United States in terms of passenger enplanements. The airport is served by seven to eight airlines, offering non-stop service to more than 20 destinations in the continental US and beyond. In 2024, it served a total of 4,264,875 passengers, making it the second busiest airport in Washington state.
Spokane International Airport provides convenient transportation options for travellers. Spokane Transit operates four bus stops at the airport, and it is also served by various shuttle services and inter-city travel options. The airport offers long-term and short-term parking for those who prefer to drive themselves or be dropped off by friends or family.
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GEG was known as Sunset Field before 1941 and was renamed after Major Harold Geiger
Spokane International Airport (GEG) is a commercial airport in Spokane, Washington, United States. It is the largest commercial/public airport in the state of Washington in terms of land area. The airport is located approximately 7 miles west-southwest of Downtown Spokane. Before 1941, it was known as Sunset Field. In 1941, the War Department purchased the airport from the county and renamed it Geiger Field, after Major Harold Geiger, an Army aviation pioneer who died in a plane crash in 1927. The airport's code, GEG, is derived from its former name, Geiger Field, which honoured Major Harold Geiger.
During World War II, GEG served as a major training base for the Second Air Force and was used by Air Technical Service Command as an aircraft maintenance and supply depot. In 1943, General Hap Arnold established the first formal fire protection training course at the airport. In 1946, the airport became Spokane's municipal airport, replacing Felts Field. The current Concourse A and B complex opened in 1965, and a second level was added in 1974.
Today, Spokane International Airport (GEG) is served by seven to eight airlines, offering non-stop service to more than 20 destinations in the continental US. The airport has a Master Plan that includes the addition of a third runway and gates to Concourse C. In October 2022, the airport began Phase 1 of the Terminal Renovation and Expansion (TREX) program, which includes the expansion of Concourse C.
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GEG is currently undergoing a Terminal Renovation and Expansion (TREX) program
Spokane International Airport (GEG) is currently undergoing a Terminal Renovation and Expansion (TREX) program. The airport broke ground on the first phase of the project, which includes the expansion of Concourse C, in October 2022. The $150 million addition will add 144,000 square feet, 6 new gates, and modernise the existing terminal. The first portion of the expanded concourse, which includes three gates at the west end, opened in June 2024. The remainder of the project is planned to begin construction in late 2024 and be completed the following year.
The second phase of the TREX program focuses on creating a centralised TSA screening checkpoint and baggage claim, as well as an improved operations centre. This central connection will also allow easier navigation between the A/B and C concourses. As of January 2023, the 145,000 square foot Central Hall is estimated to cost $179 million and has a planned construction timeline of 2025 to 2027. Other projects planned in the TREX program include the relocation of rental car facilities and the renovation of the A/B concourse.
The TREX program is Spokane International Airport's long-term vision to enhance and expand the airport's terminal facility. The airport is the second-largest commercial service airport in the state of Washington and serves as a gateway to the Inland Northwest and British Columbia. The airport is expected to handle over 6.2 million passengers by 2030, and the TREX program aims to accommodate this growth and better position the airport to attract and retain air service connections.
The airport has undergone several expansions and renovations since it became Spokane's municipal airport in 1946. The current Concourse A and B complex opened in 1965, with a second level added in 1974. The airport has a Master Plan, which includes a third runway and additional gates for Concourse C. The Terminal, Rotunda, and Concourse C Enhancement Project (TRACE) was completed in November 2006, adding retail space and expanding security checkpoints.
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Seattle–Tacoma International Airport (IATA: SEA) is the primary airport serving Seattle and its surrounding areas
Spokane International Airport (IATA: GEG) is a commercial airport in Spokane, Washington, located around 7 miles (11 km) west-southwest of Downtown Spokane. It is the largest commercial/public airport in the state of Washington in terms of land area, covering 6,140 acres (9.6 sq mi; 24.8 km2). The airport's code, GEG, is derived from its former name, Geiger Field, which honoured Major Harold Geiger, an Army aviation pioneer who died in a plane crash in 1927. Spokane International Airport serves the Inland Northwest, which includes 30 counties and areas such as Spokane, the Tri-Cities in Eastern Washington, and Coeur d'Alene in North Idaho.
On the other hand, Seattle–Tacoma International Airport (IATA: SEA) is the primary airport serving Seattle and its surrounding areas. It is located about 12 miles south of Downtown Seattle in the state of Washington. The airport is a major hub for Alaska Airlines and is known for its unique, iconic central terminal designed by a team of architects led by Norman J. Perterson. Seattle–Tacoma International Airport offers a range of amenities, including restaurants, shops, and services for travellers. It handles a significant volume of domestic and international flights, providing connections to destinations across the globe.
Seattle–Tacoma International Airport, often referred to as Sea-Tac, plays a crucial role in the region's transportation network. It is conveniently located along the I-5 corridor, providing easy access to those travelling to and from Seattle and its surrounding areas. The airport is well-connected to the city and surrounding regions through various transportation options, including rental cars, taxis, ride-sharing services, and public transportation.
The airport offers a wide range of dining options, from casual eateries to upscale restaurants, ensuring that travellers can find something to suit their tastes and preferences. Additionally, Sea-Tac features a variety of shops, including popular retail brands, specialty stores, and duty-free shopping for international travellers. For added convenience, the airport also provides essential services such as currency exchange, luggage storage, and information desks.
Seattle–Tacoma International Airport is committed to enhancing the traveller experience and has implemented various initiatives to ensure the comfort and safety of its passengers. This includes providing family-friendly facilities, improving accessibility features, and offering a range of art and cultural exhibits throughout the airport. The airport also prioritises sustainability and has implemented several eco-friendly practices and programmes.
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SEA is the busiest airport in the Pacific Northwest region of North America
Spokane International Airport, with the airport code GEG, is located in Spokane, Washington, United States. It is approximately 7 miles (11 km) west-southwest of Downtown Spokane. The airport's code, GEG, is derived from its former name, Geiger Field, which honoured Major Harold Geiger, an Army aviation pioneer who died in a crash in 1927.
Seattle-Tacoma International Airport, commonly known as Sea-Tac Airport and identified by the IATA code SEA, is an international airport in Seattle, Washington, United States. It is located 13 miles (21 km) south of Downtown Seattle and 18 miles (30 km) north-northeast of Tacoma.
The airport has two runways and handles a significant amount of cargo traffic in addition to passenger traffic. It serves as a focus city for several airlines, including Allegiant Air and Hawaiian Airlines. The North Satellite Terminal at SEA is currently undergoing a $734 million expansion and renovation project, which will add six new gates and improve passenger amenities.
Both GEG and SEA are important airports in Washington state, with SEA being the busiest in the Pacific Northwest region.
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Frequently asked questions
GEG, or Spokane International Airport, is the largest commercial/public airport in Washington state, excluding military airfields, general aviation, and cargo airports. The airport is named after Geiger Field, which was itself named after Major Harold Geiger, an Army aviation pioneer who died in a crash in 1927.
SEA, or Seattle–Tacoma International Airport, is the primary international airport serving Seattle and its surrounding metropolitan area in the U.S. state of Washington. It is located in the city of SeaTac, approximately 14 miles (23 km) south of downtown Seattle and 18 miles (29 km) north-northeast of downtown Tacoma.
Spokane International Airport (GEG) covers 6,140 acres, while Seattle–Tacoma International Airport (SEA) covers 2,500 acres. GEG is located in Spokane, while SEA is located in the city of SeaTac, which is named after the airport's nickname, Sea–Tac.











































