What is Alaska Airlines' busiest route? If you guessed Seattle to Anchorage, or Seattle to Los Angeles, you'd be wrong. We counted every flight Alaska has scheduled on a single day, Wednesday, Nov. 4, and its busiest route is Honolulu to Maui, with 40 flights between the two islands. That's a sign of how much Alaska has changed since it bought Hawaiian Airlines, whose planes now fly under Alaska's flight numbers. It's also a useful picture of the airline right now, as it warns staff it could lose up to $700 million this year.
One Day at Alaska Airlines
On that one Wednesday, Alaska has 1,469 flights on the schedule with nearly 200,000 seats. They connect 129 airports, from tiny towns in southeast Alaska to London, Seoul and Sydney.
Seattle is still the center of it all. About 39% of those flights start or end there, carrying 41% of all of Alaska's seats. Portland comes next, touching about 17% of flights, followed by San Diego, Honolulu and Los Angeles.
Hawaii Is Now a Big Part of Alaska
The biggest change is Hawaii. Almost one in five Alaska flights now starts or ends in the islands, and 144 of them never leave Hawaii at all. They shuttle between Honolulu, Maui, Kauai and two airports on the Big Island on Hawaiian's familiar planes, some of them less than an hour long.
That's why the top of the list looks so tropical. After Honolulu to Maui, the next busiest routes are Honolulu to Kauai with 34 flights and Honolulu to Kona with 32. The busiest route out of Seattle, the city Alaska calls home, only shows up after that, with 24 flights to Portland and another 24 to Los Angeles. It's a strange thing for an airline named after the Last Frontier, but island hopping is now its busiest business.
The Plane You're Most Likely to Board
Ask most people what plane Alaska flies, and they'll say a Boeing 737. That's mostly right, but the single most common plane on its schedule is actually the Embraer 175, a 76-seat regional jet. It flies about a third of Alaska's flights, run by its sister airline Horizon and by partner SkyWest on shorter routes like Seattle to Portland, Boise or Spokane.
The range of flights is huge. The longest on the schedule is Seattle to Seoul at nearly 12 hours on a Boeing 787. The shortest is a roughly 25-minute hop between Petersburg and Wrangell, two small towns in southeast Alaska that are barely 30 miles apart. Locals call that string of tiny-town stops the "milk run," and it's still one of the most remarkable routes any US airline flies.
What It Says About Alaska's Money Problem
Only about one in 10 of Alaska's seats is in first class or business class. Yet premium seating, which also counts extra-legroom seats, brought in more than a third of Alaska's revenue last quarter. That gap explains why Alaska keeps adding nicer cabins and long international flights, even while it tightens spending elsewhere.
The trouble is that a network this big burns a lot of fuel, and fuel is costing Alaska about $1.8 billion more this year than it planned. Every one of those 1,469 daily flights, from the 25-minute milk run to the 12-hour trip to Seoul, costs more to fly than it did a year ago. If you're flying Alaska, nothing about your flight is changing, but the scale of its schedule shows just how much a jump in fuel prices can hurt. We broke down what Alaska's loss means for your trip separately.
How we counted: We used flight schedule data for every flight scheduled under Alaska Airlines flight numbers on Wednesday, Nov. 4, 2026 (Pacific time), including flights run by Horizon, SkyWest and Hawaiian Airlines aircraft, and leaving out codeshare flights sold on other airlines. Each round trip counts as two flights.
