GDS VS NDC: Complete comparison and how to integrate both in 2026

Compare GDS vs NDC in 2026 by technology, content, pricing, and adoption. Plus: what it takes to integrate both systems into a custom travel platform.

NDC bookings now account for 18.2% of all ARC releases in the US, up from 12.5% in 2023 and 7.1% in 2022 (Source: ARC, 2024). IATA predicts that by 2026, around 65% of all indirect bookings will be NDC-powered (Source: IATA via Tragento, 2025). Yet GDS-EDIFACT systems still account for 88% of indirect sales globally (Source: AltexSoft, 2025). The GDS vs NDC debate is no longer about which system will replace the other. It is about how both systems will coexist and how travel businesses can integrate them effectively. This article compares GDS and NDC across 6 key dimensions and covers what it takes to build a travel platform that handles both.

Key Takeaways:

• GDS and NDC are not competing replacements. They are complementary systems serving different needs. Major GDS providers including Amadeus, Sabre, and Travelport now support NDC alongside traditional EDIFACT formats, creating a hybrid distribution landscape.
• Over 60% of airlines have adopted NDC to some degree as of 2025 (Source: TTS, 2025), but full adoption remains slow. Even leading NDC airlines are still in the setup phase, and many will only begin Offer & Order transition in 2028-2029 (Source: IATA Annual Review 2025).
• NDC enables airlines to deliver rich content, dynamic pricing, and personalized offers directly to travel sellers, reducing dependency on intermediaries. 87% of travel managers report that NDC-enabled connections help them save money (Source: Navan, 2025).
• The biggest practical challenge for travel businesses in 2026 is not choosing between GDS and NDC, but integrating both into a unified booking platform. For a deeper look at how GDS systems connect airlines, hotels, and other travel suppliers, see our GDS system: how to connect all from airlines to hotels guide.
• For businesses choosing among major GDS providers, our how to choose GDS in travel among Amadeus vs Sabre vs Travelport breakdown covers the trade-offs of each platform.

Understanding GDS and NDC: The Foundation

The travel industry depends on sophisticated systems that can interconnect various sectors like airlines, travel agents, and consumers. It is essential to know the definition of GDS and NDC, as these two are the technologies that exist to meet various requirements. GDS stands for an old-school, centralized method of distributing travel services. NDC is the new innovative model for facilitating and customizing travel services. This section gives a system of each system, its characteristics, and its advantages. 

1. What is GDS?

GDS stands for Global Distribution System. It is a centralized technology platform that connects travel agents and suppliers, including airlines, hotels, car rental companies, and other travel providers, into a single booking interface. GDS has been the backbone of the travel industry for over 40 years, with three major players dominating the market: Amadeus, Sabre, and Travelport.

The core function of a GDS is aggregation. Instead of an agent needing to query each airline’s system individually, the GDS pulls live inventory and pricing from thousands of suppliers and presents it through a unified interface. This made GDS indispensable for travel agencies handling high volumes of bookings across multiple suppliers.

GDS operates primarily on EDIFACT (Electronic Data Interchange For Administration, Commerce, and Transport), a messaging standard developed in the 1980s. EDIFACT was designed for an era of expensive private networks with low bandwidth, which is why it transmits limited content compared to modern API-based systems.

2. Key features of GDS 

The key features of GDS highlight its strength as a centralized, efficient system that connects travel agents and suppliers worldwide: 

4. What is NDC? 

NDC stands for New Distribution Capability. It is an XML-based data transmission standard developed by the International Air Transport Association (IATA) in 2012 to address the limitations of EDIFACT-based GDS distribution. Unlike GDS, which forces airlines to fit their products into rigid data formats, NDC allows airlines to present rich content, dynamic pricing, and personalized offers through standardized APIs.

The fundamental difference is who controls the offer. With GDS, the GDS provider controls how airline content is displayed and what information is available. With NDC, the airline controls the offer creation process directly, and travel sellers receive the full offer as the airline intends it to be presented. This shift gives airlines back control over their brand and product merchandising, which is why IATA developed it and why airlines have championed adoption.

NDC is not a platform. It is a communication protocol. Airlines implement NDC by exposing their inventory through XML-based APIs, and travel sellers (OTAs, TMCs, corporate booking tools) integrate those APIs to receive the content.

GDS vs NDC: 6 Key Differences

1. Technology and Architecture

GDS relies on EDIFACT messaging, a 40-year-old standard designed for low-bandwidth private networks. It uses a centralized architecture where the GDS provider sits between airlines and travel sellers, processing and normalizing data into a standardized format.

NDC uses XML-based APIs that enable direct or near-direct communication between airlines and travel sellers. The architecture is decentralized: each airline exposes its own NDC API, and sellers either connect directly or through aggregators. This API-first approach aligns with modern web standards and supports much richer data exchange than EDIFACT.

The practical impact is that NDC can carry far more information per transaction (rich media, detailed product descriptions, dynamic bundles), while GDS is constrained by EDIFACT’s bandwidth limitations.

2. Content Delivery

GDS delivers standardized content: fares, schedules, seat availability, and basic ancillary information. The format is consistent across airlines, which makes it easy for agents to compare options. But the content is limited to what fits within EDIFACT’s structure, which means airlines cannot showcase premium cabin features, lounge access, meal options, or visual content effectively.

NDC delivers rich content including high-resolution images, detailed product descriptions, real-time inventory, fare bundles (flight + bag + seat + meal), and personalized recommendations based on traveler profile. Airlines can present their products the way they want to be seen, rather than as commodity inventory in a GDS feed.

For airlines competing on premium experience, NDC’s content capabilities are the difference between selling a flight as a commodity and selling it as a product.

3. Pricing Models

GDS uses static pricing based on filed fares stored in ATPCO (Airline Tariff Publishing Company). Airlines file fares in advance, and GDS systems display those fares to agents. The model works well for stable pricing but struggles to support real-time fare adjustments or promotional pricing.

NDC supports dynamic pricing, where airlines can adjust fares in real time based on demand, competition, customer profile, and inventory levels. Continuous pricing, a feature supported by NDC, allows airlines to set prices at any point along a continuum rather than at fixed price points. This enables much more sophisticated revenue management.

The financial impact is significant: airlines using NDC can capture revenue that would be lost to fixed price filing, while travel sellers can offer more competitive fares to customers.

4. Ancillary Services

GDS handles ancillary services (baggage, seat selection, meals, Wi-Fi) inconsistently. Many ancillaries cannot be merchandised through GDS at all because EDIFACT was not designed to support them. Agents often have to direct customers to the airline’s website to purchase ancillaries, which breaks the booking flow and costs the agent commission.

NDC integrates ancillaries directly into the booking flow. Travel sellers can offer baggage upgrades, seat selection, premium meals, lounge access, and other ancillaries as part of a single transaction. Airlines also reported that NDC-enabled distribution increases ancillary revenue compared to traditional GDS distribution, because sellers can present these options at the right moment in the booking journey.

5. Customer Experience

GDS-powered booking experiences tend to be functional but generic. The traveler sees a list of fares with limited information, makes a selection, and completes the booking. There is little personalization, and the customer rarely sees the full value of the airline’s product before purchasing.

NDC enables personalized booking experiences where the traveler sees offers tailored to their loyalty status, past behavior, travel purpose, and preferences. Visual content, detailed product descriptions, and bundled options make the booking process feel more like online retail than legacy airline distribution.

For modern travelers accustomed to e-commerce experiences from Amazon, Netflix, and other online retailers, NDC-powered booking flows feel familiar. GDS-powered flows feel like 1990s technology.

6. Adoption and Industry Position

GDS still dominates indirect distribution. EDIFACT-based GDS systems account for 88% of indirect sales globally as of 2025 (Source: AltexSoft, 2025). Traditional travel agencies and corporate travel management companies continue to rely on GDS for breadth of inventory, established workflows, and reliability.

NDC adoption is accelerating but uneven. Over 60% of airlines have adopted NDC to some degree, with leading carriers like Lufthansa, Emirates, American Airlines, and Finnair pushing aggressive transitions (Source: TTS, 2025). Lufthansa Group has implemented surcharges for bookings made outside its NDC platform, incentivizing agents to adopt the standard. Finnair plans to remove all of its domestic itineraries from EDIFACT distribution as part of its full NDC transition.

The Navan corporate travel platform reported that around 24% of its airline tickets in 2024 were purchased through NDC sources, with savings of up to 16% per fare for clients (Source: Tragento, 2025).

The 2026 Reality: GDS and NDC Coexist

The most important development in the GDS vs NDC debate is that the two systems are no longer competing replacements. They are complementary technologies that increasingly work together. Major GDS providers have all integrated NDC support:

Amadeus offers NDC-X, which integrates NDC content alongside traditional EDIFACT inventory in a unified seller interface. Travel agents can access both content types without changing their booking workflows.

Sabre operates a retailing platform that connects airline Passenger Service Systems (PSS) with the Sabre GDS, allowing carriers to determine what content is displayed and providing access to customer data.

Travelport has built NDC integration into its Smartpoint and Travelport+ platforms, supporting major NDC airlines including British Airways, Lufthansa Group, and American Airlines.

This convergence means travel businesses no longer have to choose between GDS and NDC. They need to integrate both. The question for any custom travel platform in 2026 is not which standard to support, but how to architect a system that handles GDS and NDC content seamlessly.

What It Takes to Build a Travel Platform That Integrates GDS and NDC

Building a custom travel platform that supports both GDS and NDC requires careful architecture decisions and integration work. The 5 components below are essential.

Multi-Source Aggregation Layer

A modern travel platform needs to query GDS systems, NDC airline APIs, low-cost carrier (LCC) direct connects, and aggregators simultaneously, then normalize the responses into a unified data structure. This aggregation layer handles different data formats, pricing structures, and inventory states, returning a consolidated set of offers to the user interface.

Adamo Software built a B2B travel distribution platform that integrates over 2 million hotels and accommodations from multiple providers into a single unified booking system. The platform’s intelligent aggregation algorithm continuously tracks post-booking price changes across providers and automatically rebooks identical rooms at lower rates. The same multi-source aggregation architecture applies directly to combining GDS and NDC inventory in a single seller interface.

NDC Certification and Integration

To work with NDC, a travel platform must integrate with each airline’s NDC API individually or connect through an NDC aggregator. Direct integration provides the most control but requires significant development effort per airline. Aggregator integration is faster but adds a layer between the seller and the airline.

IATA maintains the Airline Retailing Maturity (ARM) Index, which certifies airlines and IT providers based on their NDC implementation maturity. More than 70 airlines are now certified by the IATA ARM Index (Source: Amadeus, 2025). Building an NDC-capable platform means choosing which airlines and aggregators to integrate based on the platform’s target market.

GDS Connectivity and Existing Workflow Support

A travel platform serving traditional agents and corporate travel managers cannot abandon GDS. It must integrate with one or more GDS providers (Amadeus, Sabre, Travelport) to provide access to the breadth of inventory those systems offer. This integration is well documented but requires meeting technical certification requirements and managing licensing costs.

Adamo Software developed Home Gargano, a multichannel travel platform integrating with top GDS providers including Amadeus, Agoda, Booking.com, and Airbnb to deliver real-time access to flights, accommodations, and tours. The platform’s centralized admin dashboard manages agency accounts, sales policies, commissions, and transaction fees across all integrated suppliers. This is exactly the type of architecture required for a custom travel platform that combines GDS and NDC inventory under unified business management.

Multi-Currency and Multi-Payment Gateway Support

International travel platforms need to handle currency conversion, regional payment methods, and multiple payment gateways simultaneously. This is particularly important for platforms serving global markets where different regions prefer different payment methods.

Adamo Software built a global air experience booking platform that supports flight and hot-air balloon reservations across Australia and China, integrating Alipay, WeChat Pay, PayPal, and Apple Pay into a single payment system. The platform uses a daily data-synchronization pipeline between dual databases to ensure consistent performance across regions. This same multi-payment architecture is essential for any travel platform handling cross-border transactions through a combination of GDS and NDC sources.

Look-to-Book Ratio Management

NDC adoption brings a significant operational challenge: increased look-to-book (L2B) ratios. Because NDC enables more dynamic offers and personalization, sellers tend to issue many more search requests per booking than they did with EDIFACT. This drives up infrastructure costs for both airlines and platforms.

A custom travel platform must implement caching, request throttling, and intelligent search optimization to keep L2B ratios manageable. This is not optional. L2B is described by industry experts as “the largest ongoing cost associated with NDC” (Source: AltexSoft, 2025).

Recommended Tech Stack

Based on Adamo Software’s travel and hospitality platform development experience:

• Frontend: React or Next.js for modern, responsive seller interfaces
• Backend: Node.js or Python (Django/FastAPI) for API aggregation and business logic
• Database: PostgreSQL for transactional data, Redis for caching search results and managing L2B ratios
• GDS Integration: Amadeus Web Services, Sabre Dev Studio, Travelport Universal API
• NDC Integration: Direct airline NDC APIs or aggregators like Travelfusion, Duffel, Travelport+, Amadeus NDC-X
• Payment Gateways: Stripe, PayPal, Alipay, WeChat Pay, Apple Pay (region-dependent)
• Cloud: AWS or Google Cloud with dedicated infrastructure for high-volume API traffic
• Monitoring: Custom dashboards for tracking L2B ratios, booking success rates, and supplier performance

Conclusion

The GDS vs NDC debate has shifted. It is no longer a question of which system will win, but how both systems will coexist and how travel businesses can integrate them effectively. GDS retains its dominance in indirect distribution with 88% of global indirect sales, while NDC adoption accelerates among airlines and modern travel platforms with 65% of indirect bookings projected to be NDC-powered by 2026. For travel agencies, OTAs, TMCs, and travel tech startups, the practical question in 2026 is not “GDS or NDC?” but “how do we build a platform that handles both seamlessly?” That answer requires multi-source aggregation, GDS and NDC dual integration, multi-payment gateway support, and L2B ratio management, which is exactly the architecture that custom travel software development delivers when off-the-shelf platforms cannot.

III. Implementing GDS and NDC Technologies: Why Adamo Software is your ideal partner 

Adamo Software is especially experienced in travel technology and thus provides custom travel and hospitality software development solutions to adapt GDS and NDC solutions. Adamo has developed travel and hospitality platforms integrating GDS providers (Amadeus, Agoda, Booking.com, Airbnb), NDC-ready airline systems, and multi-region payment gateways (Alipay, WeChat Pay, PayPal, Apple Pay). From B2B distribution platforms aggregating 2 million hotels to global flight booking systems handling cross-border payments, Adamo Software’s engineering team builds travel software that connects fragmented inventory into unified booking experiences.

The company knows the difference between GDS vs NDC, and their team will sit down with clients to help them determine the right way to navigate the more detailed issue. Whether it’s providing broad travel booking services or creating custom API platforms, they supply systems that are sustainable and easy to use. Through cooperation with Adamo Software, companies can play with GDS and NDC and remain leaders in the coming travel industry.