Travel software development

Booking systems built around one awkward truth: you do not own the inventory, the price or the uptime.

Travel software development means building booking, search and operations systems that depend on third-party inventory: airline, hotel and supplier APIs, including GDS and NDC connections, that change price mid-session, go down without warning and disagree with each other. AMT (Advanced Millennium Technologies) has delivered a flight booking platform and builds systems where supplier integration is the central engineering problem.

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// gds_ndc

GDS, NDC and direct supplier APIs

GDS, NDC and direct supplier APIs compared
Connection	What it is	What it means for the build
GDS	Global distribution systems such as Amadeus, Sabre and Travelport, which pool airline, hotel and car inventory for travel sellers	Broad content through one connection, with fixed message formats and per-transaction costs
NDC	IATA's New Distribution Capability standard, which lets airlines sell directly to travel sellers with richer offers and bundles	Better content and pricing, but each airline's implementation differs, so handling gaps matters
Direct supplier APIs	Hotel chains, bed banks, rail, transfers and activity providers	Many small integrations, each with its own failure behaviour

// inventory

The core challenge: building on inventory you do not control

Most software owns its data. A travel booking engine does not. Availability and price live with suppliers, they change while a customer is mid-booking, and the moment of truth is a confirmation that either succeeds or leaves you with an unhappy traveller and a support ticket.

What third-party travel inventory forces, and what a good system does
What it forces	What a good system does about it
Prices and availability change mid-session	Have a clear policy for what happens between search and booking, and show it to the customer. Silently re-pricing at the last step is the most damaging pattern in this sector.
Suppliers go down independently	Search shows partial results instead of failing, and tells the customer which suppliers are missing.
Caching is necessary and risky	Querying everything live is too slow. Caching too much shows prices you cannot honour. This trade-off defines the product.
A booking is not a simple database write	It is a multi-step exchange with an external system that can fail halfway. It needs safe retries, compensation and reconciliation.
Peak load is not average load	Holidays and promotions create traffic spikes that break systems sized for a normal Tuesday.
Changes and cancellations are most of the work	Changes, refunds and partial cancellations are where the complexity and support cost really sit.

Get the supplier integration checklist

Six decisions every booking system has to make about inventory it does not control, and what each one costs if it is made by accident. One page.

// proof

Proof

Flight booking platform. Delivered by AMT.

// what_we_build

Travel software we build

Travel software AMT builds
Service	What it covers
Booking and search engines	Flights, hotels and packages, with a defined answer to what happens when the price moves.
Travel portals	B2B agent portals and B2C booking sites on one booking core.
Supplier, GDS and NDC integration	Including partial failure handling that never misleads the customer.
Post-booking operations	Changes, cancellations and refunds, which is where the real complexity lives.
Conversational booking support	AI agents for the queries that do not need a person. See conversational AI.
Platform modernisation	Phased, for booking platforms that cannot go down in peak season. See Modernise Without Downtime.

// cost

Cost

Travel software development cost
Stage	Pricing model	What drives the effort
Discovery	Fixed price, 2 to 3 weeks	Number of suppliers and connection types, and the booking flows in scope.
Build	Scoped after discovery	Supplier integrations, caching strategy and post-booking flows.
Typical budget range	20 to 35 USD per hour	GDS and NDC integration specialists at the higher end, portal development and testing at the lower end.

// faqs

FAQs: travel software development

What is a GDS in travel?

A global distribution system, such as Amadeus, Sabre or Travelport, pools airline, hotel and car inventory so travel sellers can search and book it through one connection.

What is NDC, and do we need it?

NDC is an IATA standard that lets airlines sell directly to travel sellers with richer offers. If airline content and pricing matter to you, you will likely need NDC alongside GDS.

Can you integrate with GDS and supplier APIs?

Yes, and that integration layer is usually most of the engineering. Handling partial failures matters as much as the happy path.

What happens when the price changes between search and booking?

The business sets a policy and the system enforces it visibly. Silent re-pricing at the final step is the fastest way to lose a customer.

How do you handle a supplier going down?

Search shows partial results and says so.

How do you handle peak travel season load?

By sizing for the shape of the traffic, not the average, and deciding in advance what slows down first when capacity runs short.

Is the hard part the booking or the changes?

The changes. Cancellations, modifications and partial refunds carry most of the complexity and support cost.

Tell us which suppliers you depend on

30 minutes with an engineer. The integration layer is usually the real project, so that is where we would start.

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