The question of whether Delta and Alaska Airlines are partners is a common one among travelers, stemming from a historical alliance that profoundly shaped travel on the West Coast of the United States. For many years, these two carriers maintained a robust and mutually beneficial relationship, offering seamless connections, shared frequent flyer benefits, and extensive reach across their combined networks. However, the landscape of airline partnerships is dynamic, driven by evolving market strategies, competitive pressures, and global alliance shifts. Understanding the current status of their relationship is crucial for any traveler planning journeys that might involve either airline.
A Shifting Landscape: The Evolution of Airline Alliances
Airline partnerships are complex arrangements designed to extend a carrier’s reach, offer more options to passengers, and enhance loyalty programs. The relationship between Delta and Alaska Airlines serves as a prime example of how these alliances can form, flourish, and eventually dissolve, fundamentally altering the travel experience for millions.
The Golden Era of Partnership
For nearly two decades, Delta and Alaska Airlines enjoyed a comprehensive codeshare agreement and a frequent flyer program partnership. This alliance was particularly impactful on the West Coast, especially at Seattle-Tacoma International Airport (SEA), where Alaska Airlines had, and still maintains, a dominant presence. Delta leveraged Alaska Airlines’ extensive regional network, especially to smaller cities in Alaska, Oregon, Washington, and California, while Alaska Airlines benefited from Delta’s vast international and transcontinental routes. Travelers could earn and redeem miles on either airline, enjoy reciprocal elite benefits like lounge access and priority services, and book itineraries that combined flights from both carriers under a single ticket. This arrangement provided a powerful, integrated travel solution, making it easier for passengers to connect from regional destinations to major global hubs.
The Divorce: Delta and Alaska Airlines Go Separate Ways
The partnership began to unravel in the mid-2010s, primarily driven by Delta’s strategic decision to expand its own presence in Seattle. Historically, Delta relied on Alaska Airlines to feed passengers into its long-haul flights from SEA. However, as Delta sought to establish Seattle as a major transpacific gateway and grow its domestic network from the city, the symbiotic relationship turned competitive. The lines between partner and rival blurred as Delta began to launch routes that directly competed with Alaska Airlines’ core network.
The formal end of the codeshare and frequent flyer partnership occurred on May 1, 2017. This dissolution marked a significant turning point, not just for the two airlines, but also for travelers who had grown accustomed to the integrated benefits. While some aspects, such as the ability to earn miles, slowly phased out, the comprehensive partnership ceased to exist.
Strategic Realignment for Delta and Alaska Airlines
Following the breakup, both airlines pursued independent strategies to bolster their positions. Delta continued its aggressive expansion in Seattle, investing heavily in infrastructure and adding numerous domestic and international routes, solidifying SEA as a major hub within its global SkyTeam alliance. Alaska Airlines, meanwhile, sought new alliances to replace the connectivity lost from Delta. This led to its eventual entry into the Oneworld alliance in March 2021, providing its passengers with a new network of global partners like American Airlines, British Airways, and Qatar Airways. This strategic realignment fundamentally reshaped the competitive landscape, particularly on the West Coast, and offered travelers distinct choices based on their preferred alliance or airline loyalty.
Understanding the Implications for Travelers
The end of the Delta and Alaska Airlines partnership has profound implications for travelers, affecting everything from how they book flights to how they accrue and redeem loyalty points.
Impact on Route Networks and Connectivity
Previously, a traveler flying Alaska Airlines from a regional Pacific Northwest city could seamlessly connect to a Delta international flight from Seattle on a single itinerary, with luggage checked through and guaranteed connections. Today, such connections are no longer seamless. While it’s still possible to book flights on both airlines for a single trip, they would be treated as separate tickets unless a rare, limited interline agreement exists for specific scenarios. This means travelers are responsible for rechecking bags, navigating potential delays independently, and managing their own connections, which can add stress and complexity to their journey. The absence of a codeshare means fewer combined route options directly available through one booking channel, often requiring travelers to piece together itineraries from different airlines.
Frequent Flyer Programs and Earning/Redeeming Miles
One of the most significant changes for loyal customers was the cessation of reciprocal frequent flyer benefits. Prior to May 2017, members of Delta’s SkyMiles program could earn and redeem miles on Alaska Airlines flights, and vice-versa for Alaska Mileage Plan members. Elite status on one airline often granted benefits on the other.
Today, this is no longer the case. Delta SkyMiles members can only earn and redeem miles on Delta flights and its SkyTeam partners. Similarly, Alaska Mileage Plan members primarily earn and redeem on Alaska Airlines and its Oneworld partners. This necessitates travelers to commit to one alliance or airline for their loyalty, as splitting loyalty across Delta and Alaska Airlines will dilute their ability to earn elite status or maximize mileage accumulation. Travelers now need to carefully consider which airline’s network and loyalty program best align with their travel patterns and goals.
Lounge Access and Elite Benefits
Elite status holders once enjoyed reciprocal benefits, such as priority boarding, complimentary upgrades, and access to airport lounges. For instance, Delta Medallion Status holders could access Alaska Airlines Lounges, and Alaska MVP Status members could enjoy certain perks on Delta flights. This convenience has evaporated.
Now, Delta elite members receive benefits only on Delta and its SkyTeam partners. Alaska Airlines elites enjoy benefits on Alaska and its Oneworld partners. Travelers accustomed to leveraging their elite status across both airlines must now choose or carefully manage their expectations regarding benefits when flying with the former partner. Access to specific airline lounges is now strictly tied to the operating carrier or its current alliance partners, making a substantial difference in the pre-flight experience for frequent flyers.
The Current State: What Travelers Need to Know Today
In short, no, Delta and Alaska Airlines are no longer partners in any meaningful sense. They are direct competitors, particularly on the West Coast.
A Focus on Independent Growth
Both airlines are now firmly focused on their independent growth strategies and their respective global alliances. Delta continues to strengthen its position as a premium global carrier, expanding its international routes from key hubs like Atlanta, Detroit, Minneapolis, Salt Lake City, Seattle, Los Angeles, and New York. Alaska Airlines, while maintaining its strong West Coast presence and reputation for customer service, is actively integrating into the Oneworld alliance, offering its passengers access to a vast global network through partners like American Airlines.
Limited Interline Agreements
While the comprehensive partnership has ended, airlines often maintain very basic “interline agreements” for specific, limited purposes, such as rerouting passengers during irregular operations (e.g., flight cancellations due to weather). These are not partnerships in the sense of codeshares, frequent flyer reciprocity, or shared benefits. They are operational courtesies rather than strategic alliances, offering minimal value to the proactive traveler planning their itinerary. Travelers should not rely on such agreements for planned connections or mileage accrual.
The Power of Independent Networks
For travelers, this means choosing between two distinct networks. If your travel predominantly involves connections through Delta hubs and global destinations served by SkyTeam, then Delta is the natural choice. If your travel is concentrated on the West Coast, particularly Alaska, Oregon, Washington, and California, and you value connections to Oneworld destinations, then Alaska Airlines provides the superior value.
Choosing Between Delta and Alaska Airlines
Given their current competitive status, travelers must choose between Delta and Alaska Airlines based on individual travel needs, preferences, and loyalty strategies.
Geographic Strengths and Hubs
Delta boasts a vast global network, with major hubs strategically located across the United States (e.g., Atlanta, Detroit, Minneapolis, Salt Lake City, Seattle, Los Angeles, New York) and strong partnerships within the SkyTeam alliance for international reach. It is an excellent choice for travelers flying to diverse domestic and international destinations.
Alaska Airlines remains the dominant carrier on the West Coast, with strong hubs in Seattle, Portland, San Francisco, Los Angeles, and San Diego. Its network is particularly robust for intra-West Coast travel and connections to Alaska and Hawaii. Its membership in Oneworld provides a gateway to Europe, Asia, and beyond through partners like American Airlines.
Loyalty Program Value Proposition
Each airline offers a distinct loyalty program. Delta SkyMiles is known for its dynamic pricing for award travel and a broad array of redemption options, though earning elite status can be challenging. Alaska Mileage Plan is often lauded by enthusiasts for its value in redeeming miles for international premium cabins on its Oneworld partners and its more straightforward path to elite status. The choice between these programs depends heavily on where and how frequently you travel, and what kind of redemption opportunities you value most.
Traveler Preferences and Service Expectations
Both airlines have strong reputations for service, though their operational styles differ. Delta generally offers a more premium, full-service experience, especially on longer routes and in its higher cabin classes. Alaska Airlines is known for its friendly crew, efficient operations, and often competitive pricing, particularly within its core West Coast market. Ultimately, the best choice depends on your personal preferences for onboard amenities, customer service ethos, and overall brand experience.
Looking Ahead: Future of Airline Relationships
The story of Delta and Alaska Airlines underscores a broader trend in the aviation industry: alliances are fluid, driven by market conditions and strategic imperatives.
Dynamic Alliances in a Post-Pandemic World
The airline industry is constantly evolving, with carriers reassessing their partnerships in light of changing passenger demands, global economic shifts, and competitive landscapes. While traditional global alliances like SkyTeam and Oneworld remain important, airlines are also engaging in more focused bilateral joint ventures and codeshare agreements to target specific markets or routes. The post-pandemic travel environment has further accelerated this adaptability, with airlines prioritizing flexibility and profitability.
The Rise of Codeshare and Bilateral Agreements
Instead of broad, all-encompassing partnerships, airlines are increasingly opting for specific codeshare and bilateral agreements that target particular routes or regions. This allows carriers to expand their reach without fully integrating their entire operations or loyalty programs, offering a more agile approach to market penetration. While Delta and Alaska Airlines currently have no such agreement, other airlines continue to forge these strategic, limited alliances.
What it Means for the Modern Traveler
For the modern traveler, this dynamic environment requires vigilance. Relying on past partnerships can lead to missed connections, forfeited miles, or unexpected costs. It is essential to verify the current partnership status of airlines when booking complex itineraries, especially those involving multiple carriers. Always check directly with the airlines or through reliable travel resources to ensure that codeshares are active, mileage programs are reciprocal, and elite benefits will be honored on all segments of your journey. In today’s travel world, understanding the nuances of airline relationships is as crucial as choosing your destination.
LifeOutOfTheBox is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. Amazon, the Amazon logo, AmazonSupply, and the AmazonSupply logo are trademarks of Amazon.com, Inc. or its affiliates. As an Amazon Associate we earn affiliate commissions from qualifying purchases.