SEATTLE — Alaska Airlines (AS) has the strongest year-over-year scheduled-frequency growth among the North American carriers in OAG’s global top 20 for August, but the 19.4% increase says more about Hawaiian Airlines’ (HA) integration than an industry-leading expansion of flying.
OAG’s August 2026 schedule analysis keeps the top of the U.S. hierarchy unchanged. American Airlines (AA) remains the world’s largest carrier by scheduled departures, with 198,550 flights during the month. Delta Air Lines (DL) follows with 160,599, and United Airlines (UA) with 158,108.
Alaska’s growth rate, however, is the outlier. OAG says the other North American carriers in its top 20 are up between 1% and 4% from August 2025, except JetBlue (B6), which is up 9.8%. Alaska is up 19.4%, which OAG explicitly attributes to the recent integration of Hawaiian.
That makes the headline accurate within OAG’s frequency table, but it does not mean Alaska organically added almost one-fifth more flying in a year. The distinction is central to understanding whether the Hawaiian acquisition is already changing the hierarchy of U.S. airline networks.
Why 19.4% Is Not Organic Growth
Alaska and Hawaiian moved to a shared passenger service system on April 22. From that date, all flights began carrying Alaska’s AS code, including services that retain the Hawaiian Airlines brand and are displayed to passengers as operated by Alaska as Hawaiian Airlines.
Airways covered how the single booking platform and AS flight code brought the two schedules together. In August 2025, those operations were still split between AS- and HA-coded flights. In August 2026, the consolidated schedule appears under Alaska.
The year-over-year result therefore captures a real increase in the network reported under the Alaska code, but much of that network was already flying under Hawaiian a year earlier. OAG does not disclose on its public page how many percentage points came from recoding Hawaiian flights and how many came from additional departures.
Alaska’s own capacity outlook shows the difference. In its second-quarter results, Air Group forecast third-quarter capacity growth of approximately 2% to 3%, with nearly all of that increase coming from long-haul international flying out of Seattle-Tacoma International Airport (SEA). Capacity within North America is expected to be essentially flat.
Frequency and capacity are not interchangeable. Frequency counts each scheduled flight once, whether it is a short Neighbor Island sector or a transatlantic widebody departure. Capacity measures such as available seat miles also reflect the number of seats and distance flown. Neither metric, by itself, measures passengers carried, revenue, or profit.
Hawaiʻi Gives Alaska a Much Denser Schedule
The acquisition, completed on September 18, 2024, gave Alaska an immediate position in markets that its legacy network did not replicate: high-frequency Neighbor Island flying, a Honolulu hub, transpacific routes, and a widebody fleet. Airways’ coverage of the completed transaction detailed the initial combined network and fleet.
Alaska and Hawaiian now offer more than 250 daily flights to, from, and within Hawaiʻi. That schedule includes short flights among the islands as well as longer services linking Daniel K. Inouye International Airport (HNL) with the continental United States and international destinations.
Those flights make Alaska a more frequent operator in global schedule rankings, but they also do something more strategically important: they connect Hawaiian’s local and transpacific network with Alaska’s broad West Coast and Pacific Northwest footprint. A frequency count cannot show the quality of those connections, yet the ability to sell them through one reservation system and one loyalty platform is one of the acquisition’s clearest network effects.
The combined scale also comes with limits. The U.S. Department of Transportation required Alaska and Hawaiian to preserve critical interisland and continental service when it allowed the merger to proceed. Alaska can optimize the network, but some Hawaiʻi services carry public-interest obligations as well as commercial value.
Seattle Is Where the Merger Changes Alaska’s Reach
Hawaiʻi adds frequency. Seattle shows how the acquisition can change the kind of airline Alaska is becoming.
Hawaiian’s long-haul aircraft and operating experience gave Alaska capabilities it did not previously have at its home hub. The group used that platform to launch Seattle-Tokyo Narita service in May 2025, followed by a broader international buildout.
Alaska said its second-quarter 2026 network included transatlantic service from Seattle to Rome, London, and Reykjavík. Its longer-term Alaska Accelerate plan calls for at least 12 international widebody destinations from Seattle by 2030.
This is more consequential than the 19.4% frequency figure alone. When the Tokyo route launched in May 2025, Alaska said its Seattle hub served 104 nonstop destinations across North America. Pairing that domestic feed with long-haul aircraft acquired through Hawaiian allows the airline to compete for passengers whose journeys extend beyond North America.
Delta Is Not Yielding Seattle
The strategy also places Alaska more directly against Delta. Delta described nearly 180 peak-day Seattle departures to more than 60 destinations in June 2025 and has continued investing in international routes and premium facilities at SEA.
Delta added Seattle service to Rome and Barcelona in May 2026, putting the two carriers into a broader contest for international passengers, connecting traffic, corporate accounts, loyalty members, and premium demand. Airways previously examined how Delta’s European additions intensified competition at Alaska’s home hub.
Alaska retains the advantage of a larger hometown domestic network, while Delta brings the scale and international depth of one of the three largest U.S. airlines. The Hawaiian acquisition narrows Alaska’s capability gap by adding widebody aircraft, long-haul expertise, Hawaiʻi relevance, and another hub. It does not erase Delta’s advantages or move Alaska into the top three by flight volume.
Is the U.S. Airline Hierarchy Changing?
Yes, but not in the simplest interpretation of the OAG ranking.
American, Delta, and United still occupy the top three positions by August flight frequency, and Alaska’s 19.4% increase does not show that it has displaced them. The growth rate is also inflated by the migration of Hawaiian flights into the AS-coded schedule.
What has changed is Alaska’s network scope. It now combines high-frequency Hawaiʻi flying, a substantial West Coast domestic system, two major Pacific hubs, and a developing intercontinental gateway in Seattle. That is a material strategic shift even if the underlying Air Group capacity increase remains modest.
The next test will not be whether Alaska repeats a merger-driven double-digit frequency comparison. It will be whether the integrated network produces durable connecting traffic, supports profitable long-haul growth from Seattle, strengthens Hawaiʻi service, and competes effectively with Delta without diluting performance elsewhere.
OAG’s August table is therefore an early sign that the acquisition has changed how Alaska appears in the U.S. airline landscape. The more important hierarchy—network relevance, financial returns, and competitive strength—will take longer to settle.
.jpg?ssl=1 "Alaska Leads North American Airline Frequency Growth in OAG Top 20")
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