Short answer: choose the GDS whose content matches the routes you actually sell. Sabre is strongest where North American carriers dominate, Amadeus leads in Europe and much of Asia and the Middle East, and Travelport (Galileo, Apollo and Worldspan) holds long-standing positions in the UK, parts of Asia-Pacific and the Gulf. API ergonomics, NDC content and the commercial route to credentials should then confirm or overturn that first pick.
What all three do the same
Amadeus, Sabre and Travelport are the three surviving global distribution systems. Each aggregates schedules, fares and availability from hundreds of airlines plus hotels, cars and rail, and exposes them to travel sellers through terminals and APIs. Each settles agency sales through IATA's BSP or ARC, each returns bookings as PNRs, and each now carries NDC content from a growing set of airlines alongside traditional EDIFACT fares. If your requirement is simply "many airlines through one pipe", any of them can technically do the job; the differences that matter live one level down.
Regional strength: where each GDS is deep
GDS market presence is historical. Sabre grew out of American Airlines' reservation system and remains the system most North American agencies are trained on. Amadeus was founded by European carriers and is the default in most of Europe, with a strong position across India, the Middle East and much of Asia. Travelport is the group behind three GDS brands: Galileo and Worldspan with a broad international footprint, and Apollo historically in North America; industry comparisons such as AltexSoft's GDS overview note its long-standing strength in the UK, Australia and the Gulf.
Regional strength is not just marketing. It shows up as better negotiated local fares, more agents who know the system, faster local support and, in some markets, consolidators who only wholesale one GDS. An agency in Gurugram selling Gulf and European routes will usually see Amadeus first; a Texas agency selling domestic US trips will usually see Sabre first. Neither is a rule, which is why the framework below checks content before habit.
Content: fares, carriers and beyond air
Every GDS claims hundreds of airlines, and the headline numbers are close. The practical questions are narrower: are the carriers on your top twenty routes bookable with the fare types you need, do low-cost carriers you sell appear at all (many LCCs stay off GDSs or publish limited content), and is ancillary content such as paid seats and bags available for those carriers through that GDS? Beyond air, all three carry hotel, car and rail content, with Amadeus generally credited with the deepest rail integration in Europe.
The honest way to settle content questions is a test: give each candidate GDS (or a consolidator on it) your real top routes and compare returned fares for a week. We run exactly this exercise during GDS integration projects, because published carrier lists never answer route-level questions.
API styles compared
If you are building a booking site or engine rather than working in a terminal, the API surface matters as much as content. The table summarises how the three differ as of the date of this article; all three evolve quickly, so verify against current developer documentation.
| Dimension | Amadeus | Sabre | Travelport |
|---|---|---|---|
| GDS brands | Amadeus | Sabre | Galileo, Apollo, Worldspan |
| Typical strongholds | Europe, India, Middle East, Asia | North America | UK, parts of Asia-Pacific and the Gulf |
| API style | SOAP/XML Web Services for full agency workflows; newer REST offer/order APIs for enterprise customers | Mix of SOAP and REST/JSON APIs; offer-based APIs being expanded across the portfolio | JSON REST APIs on the current Travelport platform, replacing older XML interfaces |
| NDC content | NDC airline content delivered alongside EDIFACT in the same flow | NDC content integrated into its APIs and agency tools | Positions itself as an early NDC aggregator with NDC and low-cost content blended into search |
| Access route | Commercial agreement, usually via a local Amadeus office or consolidator | Commercial agreement via Sabre or a consolidator | Commercial agreement via Travelport or a consolidator |
Two practical notes for builders. First, full booking workflows on any GDS still involve stateful, session-based calls and PNR handling that behave very differently from a modern JSON aggregator, so budget integration time accordingly. Second, Amadeus retired its pay-as-you-go self-service developer portal in 2026, a change reported by PhocusWire, which means new Amadeus projects now go through enterprise agreements rather than a public sign-up; our Amadeus API integration page covers what that means in practice.
NDC posture
All three GDSs now aggregate NDC content, because airlines such as Lufthansa Group, British Airways and Air France-KLM attach surcharges or withhold fares on legacy EDIFACT channels. The differences are in which airlines are live on which GDS, how NDC bookings are serviced (changes and refunds are the weak point), and how NDC offers are blended with EDIFACT fares in one response. Carrier line-ups change quarterly, so check each GDS's current NDC airline list rather than relying on any article, including this one. If NDC is central to your plan, read our explainer on what NDC actually changes before treating it as a tiebreaker.
How you get access to each
None of the three offers a public "create account, get API key" flow for live bookings. The routes are: your own subscriber agreement with the GDS (usually alongside IATA accreditation so you can ticket), a consolidator or host agency that shares its GDS access and ticketing authority, or an aggregator that resells GDS content through its own API. Which route fits depends on volume, accreditation status and how much control you need; the trade-offs are the same ones we describe on our travel API integration hub.
The decision framework
Run the five steps in order and most teams end up with a clear first choice and a documented reason for it. Some end up with two: a primary GDS plus an aggregator or second source to fill gaps, which modern booking engines handle well. When you know which system you are integrating, the supplier-specific pages cover the details: Amadeus, Sabre and Galileo / Travelport.
Sources: AltexSoft, "How to Choose a GDS: Travelport vs Amadeus vs Sabre"; PhocusWire reporting on the Amadeus self-service portal closure; Amadeus, Sabre and Travelport corporate and developer documentation. Figures and carrier line-ups change; always verify against the suppliers' current material.
This article is general information about travel technology and online marketing. It is not legal, tax or financial advice, and advertising platform policies change often. Check the current policy documents and take professional advice for your own situation.