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Southwest Airlines' first test flight to Hawaii takes off

Key Points
  • Southwest Airlines' first "proving flight" with Federal Aviation Administration officials is set for Tuesday.
  • The flight is one of several the airline must take with regulators before it has approval to sell seats to the public.
  • Southwest first announced its plans to fly to Hawaii in late 2017.
A Southwest Airlines jet leaves Midway Airport in Chicago, Illinois.
Scott Olson | Getty Images

Southwest Airlines is making its maiden voyage to Hawaii on Tuesday — but there won't be any vacationers aboard.

Federal safety inspectors will fly on the Boeing 737-800 from Oakland to Honolulu around 11 a.m. PST, a key step for the low-cost airline's process of getting government approval to begin commercial flights to the islands.

During the flight the airline will seek to demonstrate its long-range navigation and communication systems to inspectors from the Federal Aviation Administration. The airline must get a government approval for long over-water flights, known as "extended-range twin-engine operational performance standards" or ETOPS.

Hawaiian Airlines shares fall after Southwest plans 'low fares' between islands

Southwest, which serves destinations in the U.S., Mexico and the Caribbean, first announced it planned to start offering service to Hawaii in October 2017. Southwest will need regulators to sign off on the airline's ability to operate the flights safely since their path will take them more than an hour from the closest airport.

The airline has been racing to get certification to start offering the flights, which it expected to do last year. It said the partial government shutdown delayed its plans to start selling tickets because FAA inspectors were furloughed. Another partial shutdown is possible this month, since only a short-term deal was reached, and another impasse could delay the approval of the Hawaii flights once more.

"It has impacted our certification process for Hawaii," CEO Gary Kelly told CNBC last month about the shutdown.

The airline's decision to offer service to the Aloha State has rattled the stock of would-be competitor Hawaiian Airlines. In what's been dubbed the "Southwest Effect," fares are $45 lower in markets where the airline has nonstop service than in cities without those routes, a University of Virginia study found.

Southwest plans to offer Hawaii flights from the West Coast as well as intra-island service.

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