Alaska Airlines begins new nonstop service from IDA to Seattle IDAHO FALLS, Idaho (KIFI) - The Idaho Falls Regional Airport (IDA) announced Wednesday Alaska Airlines will begin nonstop service between Idaho Falls and Seattle, Washington on June 17, 2021. This will be the fourth destination added to the airport’s route map this year. The addition of the new, direct Seattle flight gives IDA travelers 12 nonstop destinations to choose from, as well as hundreds of one-stop connections. Alaska Airlines is now the fifth major airline to now operate out of IDA. “We are very pleased to welcome Alaska Airlines to our market and wish them every success,” Idaho Falls Mayor Rebecca Casper said. “Providing direct flights to Seattle opens up a whole new set of destinations for our passengers at very competitive rates. We’re very excited for what this means for Idaho Falls residents, area businesses and all travelers in the region.”