<Tr> <Td> Lufthansa </Td> <Td> Frankfurt </Td> </Tr> <Tr> <Td> Norwegian Air Shuttle operated by Norwegian Long Haul </Td> <Td> London--Gatwick </Td> </Tr> <Tr> <Td> Southwest Airlines </Td> <Td> Austin (ends January 5, 2018), Baltimore, Chicago--Midway, Dallas--Love, Denver, Kansas City, Las Vegas, Oakland, Phoenix--Sky Harbor, Sacramento, St. Louis, San Diego, San Jose (CA) Seasonal: Atlanta, Houston--Hobby, Milwaukee, Nashville </Td> </Tr> <Tr> <Td> Spirit Airlines </Td> <Td> Baltimore, Las Vegas Seasonal: Detroit, Houston--Intercontinental </Td> </Tr>

What airport does southwest fly into in seattle
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