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- 🔥 Quick Facts
- How the System Migration Transforms Booking
- The Operational Reality: Flight Codes and Loyalty Programs
- Booking System Timeline and Customer Impact
- What This Means for the Travel Industry
- Historical Significance: The End of the “HA” Code
- Will Integrated Systems Change How Travelers Choose Airlines to Hawaii?
Hawaiian Airlines has officially completed its integration with Alaska Airlines, marking a significant operational milestone for the merged carrier. As of April 22, 2026, all Hawaiian flights now operate under Alaska’s “AS” code, and travelers can book through a unified platform for the first time since the $1.9 billion acquisition closed in September 2024. The transition represents far more than a technical change—it fundamentally reshapes how millions of travelers book trips, earn miles, and experience service across Hawaii and Alaska networks.
🔥 Quick Facts
- April 22, 2026: Hawaiian migrates to Sabre passenger service system (PSS)
- Unified booking platform now live for all travel from April 22, 2026 forward
- “HA” flight code retired after 97 years; all flights now use “AS” prefix
- Atmos Rewards loyalty program replaces HawaiianMiles and Alaska Mileage Plan
- Hawaiian preserves brand identity while adopting Alaska boarding system (A-F groups)
How the System Migration Transforms Booking
Hawaiian Airlines passengers experienced the most visible change on April 22, 2026, when the carrier switched from its legacy Pentastar reservation system to the same Sabre-powered platform that Alaska Airlines has used for years. The technical shift enables customers to book Hawaiian flights directly through the same interface used for Alaska flights, eliminating the need for separate systems. For travelers booking flights departing on or after April 22, 2026, the new multi-brand platform automatically directs them to select either carrier in a single search—a convenience that was previously impossible. The unified mobile app, launched in March 2026, also allows passengers to manage reservations, check boarding passes, and monitor flight status from one interface.
The integration includes technical specifics that matter for frequent travelers: one record locator number now covers both Hawaiian and Alaska bookings on the same itinerary, simplifying trip management. However, historical Hawaiian Airlines reservations made before April 22 retain their original HA confirmation codes and require separate management through legacy systems or customer service.
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The Operational Reality: Flight Codes and Loyalty Programs
The most symbolic change is the retirement of Hawaiian Airlines’ historic “HA” flight designator after 97 years of continuous use. Starting April 22, 2026, every Hawaiian flight displays the “AS” code—for example, what was HA 5 (Honolulu to New York) now appears as AS 5 on departure boards and booking confirmations. While the Hawaiian Airlines brand remains independent for marketing and customer-facing communications, operationally the carrier has unified under Alaska Air Group’s framework. The adoption of Alaska’s A-F alphabetical boarding system replaced Hawaiian’s traditional bucket system, standardizing the boarding process across both carriers.
Loyalty integration proved more complex. HawaiianMiles members received automatic conversion to the new Atmos Rewards program, which consolidates both carriers’ frequent flyer benefits starting October 1, 2025. The Atmos Rewards platform allows travelers to earn miles on both Hawaiian and Alaska flights, redeem across the combined network (including oneworld alliance partners as Hawaiian joins the alliance), and access a shared elite status tier. This unification actually expands redemption opportunities—Hawaiian customers can now book awards on Alaska’s extensive North American network, and vice versa.
Booking System Timeline and Customer Impact
| Integration Phase | Date | Customer-Facing Changes |
| Unified mobile app launch | March 30, 2026 | Single app for booking, managing reservations, sharing boarding passes |
| Booking system migration | April 22, 2026 | Multi-brand booking platform live; all new bookings use unified system |
| Flight code transition | April 22, 2026 | “HA” prefixes retire; all flights display “AS” code on boards and confirmations |
| Boarding system change | April 22, 2026 | Alaska’s A-F groups replace Hawaiian’s bucket system for consistency |
| Atmos Rewards full integration | October 1, 2025 | Combined earning/redemption; elite status consolidation across both carriers |
The April 22 migration date was carefully chosen to fall during spring, when Hawaiian’s seasonal traffic peaks and also when Alaska’s revenue management systems undergo maintenance cycles. Early reports from Alaska Air Group indicate the migration proceeded without major operational disruptions—a notable achievement considering the complexity of consolidating two separate reservation systems serving millions of annual passengers.
“The unified passenger service system will enable smoother booking and travel while unlocking the benefits of Atmos Rewards and a growing global network,” Alaska Airlines stated in its official integration announcement on April 22, 2026.
— Alaska Air Group Communications
What This Means for the Travel Industry
The Hawaiian-Alaska integration represents a textbook case of modern airline consolidation: a complete technical migration that preserves brand identity while achieving operational efficiency. Both carriers maintain separate liveries, branding, and customer service approaches; the unification exists at the backend systems level. Hawaiian continues to market itself as a premium carrier focused on Hawaii service, while Alaska positions itself as the Pacific Northwest connecting carrier with expanding national reach. What changes beneath the surface is profound—shared technology, unified booking platforms, and combined loyalty programs that increase network value for both customer bases.
For US-based travelers, the integration unlocks immediate benefits: ability to book Hawaii-bound flights alongside Alaska network connections in a single search, simplified elite status tiers that reward travel on either carrier, and access to wider route networks. Hawaiian Airlines has 94 aircraft operating Pacific routes that complement Alaska’s North American focus, creating what Alaska Air Group calls a “combined network advantage” with reduced overlap and expanded destination coverage.
Historical Significance: The End of the “HA” Code
The retirement of the “HA” flight designator carries historical weight for aviation enthusiasts and long-time Pacific travelers. Hawaiian Airlines operated continuously under the HA code since 1929, making it one of the longest-operating airline brand identities in global aviation. The carrier survived World War II, multiple recessions, and intense competition from larger carriers—all while maintaining the “HA” callsign. The April 2026 transition marks the end of an era, though Hawaiian as a brand persists under Alaska’s corporate umbrella. This parallels historical precedents: Virgin America integrated into Alaska Airlines in 2017, similarly transitioning to Alaska’s systems while maintaining Virgin brand presence in select markets. However, observers note that Hawaiian’s integration appears more preservation-focused than Virgin America’s, with the Hawaii carrier retaining greater operational autonomy and brand visibility.
Will Integrated Systems Change How Travelers Choose Airlines to Hawaii?
The integration may subtly shift travel patterns over the next 18-24 months. Passengers who previously chose Hawaiian Airlines for exclusive Hawaii service excellence might now consider Alaska Airlines as an equally integrated option if they hold Alaska elite status or chase Atmos Rewards targets. Conversely, Alaska Mileage Plan members might redirect redemption goals toward Hawaiian flights, now accessible through the unified system. Alaska Air Group executives have indicated plans to expand Hawaiian flight capacity on high-demand Pacific routes, suggesting growth strategies that leverage the combined carrier’s operational scale. The unified booking platform removes friction points, but customer preferences for service quality, pricing, and loyalty benefits will ultimately determine competitive positioning in the Hawaii market.
Sources
- Alaska Air Group Press Release (April 22, 2026) — Official announcement of unified passenger service system migration
- PRNewswire — “Alaska Airlines, Hawaiian Airlines Transition to Shared Passenger Service System”
- Hawaiian Airlines Official Communications — Brand preservation and service continuity messaging
- Reuters — Coverage of original $1.9 billion acquisition completion (September 18, 2024)
- Aviation Industry analyst sources — Operational and competitive impact analysis











