If you’re getting into travel and tourism, the three names you’ll hear over and over are Amadeus, Sabre, and Galileo. Every travel agency job listing mentions at least one of them, and every training center tries to sell you a course in one. But which one should you actually start with?
This guide breaks down the differences in plain language — market share, command style, learning curve, and career value — so you can pick the right starting point for your goals.
🔑 Key Takeaways
- Galileo is generally the easiest GDS for absolute beginners to learn first.
- Amadeus leads globally with ~40% market share — the best choice for international careers.
- Sabre dominates North America and is essential for US and Canadian travel jobs.
- Core concepts (PNRs, availability, pricing) transfer between all three systems — learning a second GDS is much faster.
- You can practice all three GDS systems for free in the GDS HUB Training Simulator.
Table of Contents
What Is a GDS?
A Global Distribution System (GDS) is a booking platform that travel agents and airline staff use to search, reserve, and ticket flights, hotels, and cars — all from one terminal. Instead of visiting each airline’s website separately, you type a command and get live availability from hundreds of carriers instantly.
That’s why GDS skills are still one of the most requested technical abilities in travel job postings worldwide. The three biggest systems are Amadeus, Sabre, and Galileo (part of the Travelport group).
Market Share: Who Uses Which System
Amadeus
Amadeus leads globally with roughly 40% of the GDS market. It dominates Europe, Asia, the Middle East, and Africa, and is the preferred system for international airlines and large agencies.
Sabre
Sabre controls North America and Latin America, holding between 23% and 35% of the global market. It’s the default system for US travel agencies, corporate travel departments, and American carrier call centers.
Galileo
Galileo holds about 21% to 22% of the market and is strong in Europe, Asia, and the Middle East. It’s popular with regional agencies and is often recommended for beginners because of its logical command flow.
Interface and Command Differences
All three systems started as cryptic terminals where you type short codes. They’ve added modern graphical layers since, but the command line is still what employers pay for.
- Amadeus — Large command set, well-documented, with a modern platform (Selling Platform Connect) and API tools. Steeper learning curve but more career reach. Browse the full Amadeus commands & lessons library.
- Sabre — Functional interface, powerful PNR and fare commands, widely taught in North America. Explore the Sabre commands & lessons library.
- Galileo — Clean, logical commands built around the PRINT structure (Phone, Received from, Itinerary, Name, Ticket). Very beginner-friendly. See the Galileo commands & lessons library.
Which GDS Is Easiest to Learn First?
Here’s the short version based on what training centers and working agents say:
- Galileo — Easiest starting point for complete beginners. Logical flow, consistent commands, faster to reach basic proficiency.
- Amadeus — Great second choice. Bigger command set but excellent documentation and a friendlier modern interface. Best if you want international work.
- Sabre — Slightly steeper for total beginners but essential for North American jobs. Worth the effort if that’s your target market.
Good news: the core concepts — PNRs, availability displays, fare rules — transfer between all three systems. So learning a second GDS later is much easier than the first.
Career and Job-Market Considerations
The best GDS to learn first depends on where you want to work:
- International or European agencies: Amadeus — the most requested system in global job postings. See free Amadeus video lessons to get started.
- US or Canadian employers: Sabre — many agencies won’t consider you without it.
- Regional or budget agencies: Galileo — strong value and steady demand in specific markets.
Most travel professionals learn at least two systems over their careers. Start with the one that matches your target market, then expand later.
Quick Comparison Table
| Feature | Amadeus | Sabre | Galileo |
|---|---|---|---|
| Global Market Share | ~40% 🥇 | ~23–35% 🥈 | ~21–22% 🥉 |
| Strongest Regions | Europe, Asia, Middle East, Africa | North America, Latin America | Europe, Asia, Middle East |
| Learning Curve | Moderate ⚖️ | Moderate to Steep ⛰️ | Easy ✅ |
| Best For | International careers ✈️ | US & Canada jobs 🇺🇸 | Beginners & regional agencies 🌱 |
| Modern Interface | Selling Platform Connect | Sabre Red | Smartpoint |
| Free Training Available | Yes ✅ | Yes ✅ | Yes ✅ |
How to Start Training Free
You don’t need to pay for a live GDS terminal to start learning. GDS HUB offers a free training simulator where you can practice real Amadeus, Galileo, and Sabre commands directly in your browser — creating PNRs, pricing itineraries, issuing tickets, and running queues with zero risk and zero cost.
Here are the resources to get started:
- Amadeus Commands & Lessons — Step-by-step guides covering PNR creation, pricing, ticketing, seat selection, and EMD transactions.
- Sabre Commands & Lessons — PNR creation, availability, pricing, ticketing, queues, and reissue workflows.
- Galileo Commands & Lessons — Flight availability, PNR management, pricing, ticket issuance, and group bookings.
- Amadeus Errors — Fix common Amadeus system errors with practical troubleshooting guides.
- Amadeus Course (Video Lessons) — Free video tutorials for beginners, from Lesson 1 through advanced ticketing.
- GDS Training Simulator — Practice real Amadeus, Galileo, and Sabre commands free in your browser, plus certification exams.
Amadeus Certification Exams
Once you’ve practiced the basics inside the simulator, test your knowledge with a free certification exam. Both exams run entirely online and give you a certificate you can share with employers.
Amadeus Basics Exam
Perfect for students and new agents. Covers the essential commands you’ll use every day in a travel agency.
- Encode & decode cities, airlines, and aircraft
- Availability displays and selling segments
- Building a complete PNR from scratch
- End transaction, pricing, and ticketing
Amadeus Advanced Exam
For experienced agents who want to prove mastery of complex fare rules, queues, reissues, and refunds.
- Advanced fare rules & reissue workflows
- Queue management and PNR servicing
- Complex SSR and OSI handling
- Refunds, exchanges, and manual TSTs
Frequently Asked Questions
Which GDS is best for beginners?
Galileo is generally considered the best GDS for complete beginners. It has a clean, logical command structure built around the PRINT principle (Phone, Received from, Itinerary, Name, Ticket), consistent shortcuts, and a shorter path to basic proficiency. That said, Amadeus is also beginner-friendly thanks to its modern Selling Platform Connect interface and excellent documentation, while Sabre is a strong choice if your target job market is North America.
Is Amadeus easier to learn than Sabre?
Amadeus is often considered slightly easier to learn than Sabre because of its better documentation, consistent command patterns, and the modern Selling Platform Connect GUI. Sabre has a steeper initial learning curve but becomes intuitive once you memorise its core PNR, pricing, and ticketing commands.
Do I need to learn all three GDS systems?
No. Most travel professionals start with one GDS that matches their target job market and learn a second one later if needed. The core concepts — PNRs, availability displays, fare rules, and ticketing — transfer easily between Amadeus, Sabre, and Galileo, so learning a second system is significantly faster than the first.
Can I learn GDS for free?
Yes. GDS HUB offers a free GDS Training Simulator that runs real Amadeus, Galileo, and Sabre commands inside your browser. You can build PNRs, price itineraries, issue tickets, and take certification exams at no cost and with zero risk to live bookings.
Which GDS pays the most?
Pay depends more on your role, region, and experience than on the specific GDS. However, Amadeus skills are in highest global demand because Amadeus holds around 40% of the worldwide GDS market. Sabre specialists command strong salaries in the US and Latin America, and Galileo specialists remain in steady demand across Europe, Asia, and the Middle East.
Final Thoughts
There’s no single “right” answer to the Amadeus vs. Sabre vs. Galileo question. But if you’re a complete beginner, Galileo is usually the gentlest introduction. If international work is your goal, go Amadeus. If North America is your target, learn Sabre.
Whatever you pick, the fastest way to build real skills is to practice on a simulator — not just read about commands.
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