What is a GDS in corporate travel?

A Global Distribution System (GDS) is a centralized network aggregating real-time inventory, pricing, and availability from airlines, hotels, and car rental companies into one platform. Corporate booking tools and travel agencies use GDS connections to search and book travel without managing individual supplier integrations. Navan connects to GDS content alongside direct airline and hotel channels for a more complete inventory view.

What are the main GDS providers?

The three major GDS providers are Amadeus, Sabre, and Travelport, each operating a global network connecting thousands of travel suppliers with booking tools and agencies worldwide. All three handle a significant share of corporate booking transactions, though their regional strengths and supplier coverage vary. Navan draws on GDS content alongside direct channels rather than relying on a single provider.

How does a GDS differ from booking directly with an airline?

A GDS aggregates inventory from hundreds of suppliers, making it straightforward to compare and book complex multi-leg itineraries across carriers in one transaction. Booking directly with an airline provides access to that carrier's NDC-exclusive fares and ancillaries but requires a separate connection per carrier. Navan integrates both GDS and NDC content so travelers see the full range of available options in one interface.

What is the difference between GDS and NDC?

GDS uses legacy EDIFACT data formats to distribute standard published fares from airlines, hotels, and car rentals through one aggregated channel. NDC is an XML-based standard introduced by IATA that allows airlines to offer dynamic pricing, ancillary products, and bundled fares through direct connections. Navan's platform combines both distribution methods, giving travelers access to GDS fares and NDC airline content in the same search.

Does Navan use a GDS?

Navan connects to GDS inventory as part of a multi-source content approach that also includes NDC airline channels, hotel direct rates, and negotiated corporate programs. Travelers booking through Navan see GDS-sourced and NDC-exclusive options in one interface, and travel managers can enforce company policy rules across all content sources. This approach provides broader inventory coverage than a single-GDS connection typically delivers.

Why do corporate travel programs use a GDS?

Corporate travel programs use a GDS because it consolidates real-time inventory from thousands of airlines, hotels, and car rental companies into one connection, eliminating the need to maintain individual supplier integrations. GDS connections also support travel policy enforcement at the booking step, flagging out-of-policy selections in real time. Navan uses GDS content alongside direct channels to give travel managers consolidated visibility over all bookings.

Is GDS content more expensive than direct airline booking?

GDS pricing for published fares is often comparable to direct booking, but airlines increasingly reserve exclusive fares and ancillaries for NDC-only channels. The right approach depends on which carriers are central to a program's route mix.Navan's platform accesses both GDS and NDC content in one interface, so travelers see the full range of available pricing without manually comparing each distribution channel.

What Is GDS (Global Distribution System)? Guide

Key Takeaways

A Global Distribution System (GDS) is a centralized technology network that connects travel suppliers with agencies and corporate booking tools, aggregating real-time pricing and inventory from airlines, hotels, and car rental companies in one place. Navan connects to GDS content alongside NDC direct channels, giving travel managers a complete view of available inventory within company policy.

The GDS technology market was valued at approximately USD 53.6 billion in 2025 and is projected to reach USD 77.1 billion by 2035, driven by rising business travel demand globally [1].
Approximately 80% of GDS bookings represent corporate travel, making the GDS the primary distribution channel for managed travel programs.
Amadeus, Sabre, and Travelport are the three dominant GDS providers, each serving thousands of airlines, hotels, and car rental companies through their networks.
Navan integrates GDS inventory alongside NDC direct-channel content, so travel managers access the most complete available options in one booking interface.

What is a GDS (Global Distribution System)?

A Global Distribution System (GDS) is a computerized network that enables travel agencies, corporate booking tools, and online travel agencies to access real-time inventory, pricing, and availability from airlines, hotels, car rental companies, and rail operators through one integrated platform. Rather than connecting to hundreds of suppliers individually, booking systems query the GDS and receive aggregated results across all connected providers.

The concept traces to 1960, when American Airlines and IBM developed SABRE as an internal airline reservation system. By the 1980s, competing carriers built their own systems and began sharing inventory, creating the multi-supplier network that became today's GDS. Amadeus, Sabre, and Travelport now serve as the dominant global platforms, connecting travel management companies, corporate booking tools, and traditional travel agencies worldwide.

How does a GDS work?

A GDS processes reservations through three sequential steps. First, suppliers transmit real-time inventory into the GDS database using standardized data formats, including seat availability, hotel room counts, and car rental stock. Second, booking systems or agents query the database to retrieve options matching a traveler's criteria, such as route, travel dates, and cabin class. Third, when a traveler confirms a selection, the GDS routes the reservation to the supplier, returns a record locator, and generates confirmation details.

The core communication standard for most GDS transactions is EDIFACT, a legacy data format developed in the 1980s for international commerce. EDIFACT handles high transaction volumes reliably but limits how much rich content, such as ancillary products and dynamic pricing, airlines can distribute through the channel.

What travel content does a GDS distribute?

A GDS aggregates inventory across four main travel categories:

Flights: Published fares, cabin-class availability, and fare rules from hundreds of airlines, including code-share and interline itineraries
Hotels: Room-type availability, negotiated corporate rates, and loyalty program data from properties worldwide
Car rentals: Vehicle class availability, rate codes, and rental terms from major and independent rental companies
Rail: Intercity and high-speed train inventory, primarily in Europe, through national rail operator partnerships

Corporate booking tools connected to a GDS apply company travel policy rules directly to search results, filtering non-preferred vendors and surfacing negotiated rates before travelers view final pricing.

Why corporate travel programs rely on GDS

The GDS reduces the operational burden of managing supplier relationships at scale. Without it, corporate booking tools would need direct API connections to every airline, hotel chain, and car rental company separately, along with ongoing maintenance for each integration. The GDS consolidates those connections into one channel.

Global business travel spending is projected to exceed USD 2.0 trillion by 2028, according to GBTA [2]. At that scale, efficient access to centralized inventory is a core operational requirement for the travel management companies and booking platforms serving corporate clients.

What does GDS integration mean for travel policy compliance?

When a corporate booking tool connects to a GDS, it can enforce company travel policy at the moment of search rather than after a booking is complete. The system applies policy rules to GDS-returned results in real time, highlighting in-policy options, requiring pre-approval for out-of-policy selections, and preventing out-of-budget confirmations before travelers finalize trips.

Navan's corporate travel platform connects to GDS inventory while also aggregating direct booking content from airlines and hotels, giving travel managers access to a broader range of rates within a single compliant booking experience.

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GDS vs. NDC: what the shift means for corporate programs

The GDS is evolving. Airlines have long argued that EDIFACT-based distribution limits their ability to offer personalized pricing, ancillary products, and bundled fares. IATA introduced NDC in 2012 as an XML-based standard allowing airlines to communicate richer content directly to travel sellers via modern APIs.

The practical result for corporate travel programs is a two-track distribution environment. GDS provides broad coverage and standardized content across thousands of suppliers. NDC channels offer airline-specific content with dynamic pricing and full ancillary availability. Programs today increasingly need booking tools that can aggregate both sources.

Feature	GDS	NDC direct channel
Content breadth	Wide: thousands of suppliers	Airline-specific
Ancillary products	Limited standard content	Full range, including seat upgrades
Pricing model	Published fares via EDIFACT	Dynamic pricing via XML API
Corporate adoption	Established standard	Growing but not universal
Booking scope	Multi-supplier comparison	Single carrier at a time

Some carriers now offer exclusive fares only through NDC channels, meaning programs relying solely on GDS content may miss competitive pricing options. Most corporate travel programs benefit from a hybrid approach: GDS for breadth and consistency, NDC for airline-specific depth.

How Navan integrates GDS and direct content

Traditional corporate travel platforms depend on a single GDS connection for all inventory. Navan's platform aggregates content from multiple sources simultaneously: GDS inventory, NDC airline channels, hotel direct rates, and negotiated corporate rate programs. Travelers searching for flights see both GDS-sourced published fares and NDC-exclusive options in the same interface, routed through whichever channel returned the selected option.

The operational benefit extends to expense management. When a booking routes through GDS, Navan captures the full booking record, including fare codes, carrier details, and policy compliance status, and passes that data directly to Navan Expense. Finance teams receive structured trip data ready for reconciliation, without reconstructing itinerary details from scattered confirmation emails.

When should you consider moving beyond GDS-only content?

GDS remains the right default for most corporate travel program components. Consider expanding to include NDC and direct-booking content when:

Airfare costs are climbing: NDC channels surface exclusive fares or bundled options unavailable through GDS, particularly on routes dominated by carriers with mature NDC programs.
Ancillary selection matters to travelers: NDC content includes seat upgrades, Wi-Fi bundles, and lounge access that GDS channels typically cannot distribute.
Policy coverage has gaps: Some carriers offer loyalty-member pricing and traveler-specific offers only through direct channels, which GDS-only programs miss by default.

The post on what companies need to know about corporate travel agents covers how corporate travel infrastructure choices affect both cost control and traveler compliance.

Business travel: Work-related travel governed by corporate travel policy, covering flights, hotels, ground transportation, and the associated expense management processes that follow each trip.
Agent-assisted booking: A reservation handled by a live agent using GDS or direct airline channels, typically for complex multi-city itineraries, VIP arrangements, or urgent disruption recovery that automated tools struggle to resolve.
Distribution platform: A broader category of travel technology used to distribute inventory, of which GDS is one type alongside direct API connections, NDC channels, and online booking tools.

Sources

[1] Future Market Insights, "GDS Technology Sector Outlook, 2025-2035," https://www.futuremarketinsights.com/reports/gds-technology-sector-outlook

[2] Global Business Travel Association (GBTA), "GBTA Business Travel Index Outlook 2025," https://www.gbta.org/research/2025-business-travel-index-outlook-bti/

Understanding how GDS infrastructure connects to booking, policy, and expense workflows is central to managing a modern corporate travel program. Learn how Navan's travel platform aggregates GDS and direct content to give travel managers complete visibility and control.

Frequently Asked Questions About GDS (Global Distribution System)

A Global Distribution System (GDS) is a centralized network aggregating real-time inventory, pricing, and availability from airlines, hotels, and car rental companies into one platform. Corporate booking tools and travel agencies use GDS connections to search and book travel without managing individual supplier integrations. Navan connects to GDS content alongside direct airline and hotel channels for a more complete inventory view.
The three major GDS providers are Amadeus, Sabre, and Travelport, each operating a global network connecting thousands of travel suppliers with booking tools and agencies worldwide. All three handle a significant share of corporate booking transactions, though their regional strengths and supplier coverage vary. Navan draws on GDS content alongside direct channels rather than relying on a single provider.
A GDS aggregates inventory from hundreds of suppliers, making it straightforward to compare and book complex multi-leg itineraries across carriers in one transaction. Booking directly with an airline provides access to that carrier's NDC-exclusive fares and ancillaries but requires a separate connection per carrier. Navan integrates both GDS and NDC content so travelers see the full range of available options in one interface.
GDS uses legacy EDIFACT data formats to distribute standard published fares from airlines, hotels, and car rentals through one aggregated channel. NDC is an XML-based standard introduced by IATA that allows airlines to offer dynamic pricing, ancillary products, and bundled fares through direct connections. Navan's platform combines both distribution methods, giving travelers access to GDS fares and NDC airline content in the same search.
Navan connects to GDS inventory as part of a multi-source content approach that also includes NDC airline channels, hotel direct rates, and negotiated corporate programs. Travelers booking through Navan see GDS-sourced and NDC-exclusive options in one interface, and travel managers can enforce company policy rules across all content sources. This approach provides broader inventory coverage than a single-GDS connection typically delivers.
Corporate travel programs use a GDS because it consolidates real-time inventory from thousands of airlines, hotels, and car rental companies into one connection, eliminating the need to maintain individual supplier integrations. GDS connections also support travel policy enforcement at the booking step, flagging out-of-policy selections in real time. Navan uses GDS content alongside direct channels to give travel managers consolidated visibility over all bookings.
GDS pricing for published fares is often comparable to direct booking, but airlines increasingly reserve exclusive fares and ancillaries for NDC-only channels. The right approach depends on which carriers are central to a program's route mix.Navan's platform accesses both GDS and NDC content in one interface, so travelers see the full range of available pricing without manually comparing each distribution channel.