Travel applications have some of the most demanding technical requirements in consumer software: real-time availability from multiple inventory sources, sub-second search across millions of flight combinations, dynamic pricing that changes while the user is mid-booking, multi-currency and multi-language support, and the reliability that travellers expect when they are booking something they have been planning for months. Automely builds travel software — from hotel booking apps and flight search engines to full OTA platforms and AI-powered personalised travel tools — with dedicated senior developers onboarded in 7 days.
Dedicated developers • 7-day onboarding • GDS, OTA & AI travel tech • NDA on day one50+
Clients Served
120+
Projects Delivered
7 Days
Average Onboarding
4.9/5★
Clutch / GoodFirms Rating
Travel inventory is distributed. Hotel availability lives in the property management system of each individual hotel — or in a channel manager that aggregates availability across properties. Flight inventory lives in the GDS (Global Distribution System) — Amadeus, Sabre, or Travelport — or directly in airline NDC APIs. Car hire, transfers, tours, and activities each have their own inventory sources. Building a travel application that searches across multiple inventory sources simultaneously, deduplicates results, returns consistent data formats, caches intelligently to avoid hammering rate-limited APIs, and responds in under a second requires a backend architecture built specifically for this problem.
AI is now fundamentally changing what travel applications can offer. LLM-powered trip planning — where a user describes what they want and the application assembles an itinerary rather than forcing the user to search each component separately — is moving from experimental features on large platforms to the expected product experience on new travel apps. Price prediction models that tell users whether now is a good time to book (or whether prices are likely to drop) create a reason to use the app beyond the moment of transaction. AI personalisation that learns individual travel preferences across trips — and proactively suggests relevant options — turns a transactional booking tool into something closer to a travel advisor.
Automely builds travel software that handles both the technical complexity of multi-source inventory aggregation and the AI layer that makes modern travel apps genuinely useful — with dedicated senior developers who have worked on real travel tech problems before.
WHAT WE BUILD
Every travel software engagement is scoped to your specific inventory sources, booking flows, and commercial model — not a generic OTA template.
Full OTA platform development: multi-source inventory aggregation (GDS + direct hotel XML/JSON + airline NDC + car rental APIs), unified search and filtering, availability calendars, real-time pricing, booking engine with payment processing, post-booking management (amendments, cancellations, rebooking), B2B agent portal with commission management, and the supplier contract and markup management that runs the commercial layer of a travel business.
Build Your OTA Platform →Hotel search and booking applications: property search with map integration, availability calendar, room type comparison, rate plan management, photo galleries and amenity data, review aggregation, booking confirmation and pre-arrival communication workflows, and integration with property management systems (Opera, Mews, Cloudbeds) via channel manager APIs (SiteMinder, Rentals United, STAAH) for real-time availability.
Build Your Hotel Booking App →Flight search and booking platforms: GDS integration (Amadeus Selfconnect, Sabre Dev Studio, Travelport APIs) or NDC API integration for direct airline booking, multi-city and complex itinerary search, fare rules and baggage fee display, seat map integration, ancillary services (meals, priority boarding, lounge access), and the ticket issuance and PNR management workflows that IATA-accredited agents require.
Build Your Flight Booking Platform →AI-powered travel features: conversational trip planning using LLMs (users describe a trip, the system assembles options across flights, hotels, and activities), personalised recommendation engines trained on past bookings and browsing behaviour, dynamic package bundling that combines available inventory into personalised suggestions, price prediction and 'best time to book' features, and AI itinerary assistants that help users plan day-by-day activities for booked destinations.
Build Your AI Travel Features →Tour operator and activity booking platforms: tour catalogue management with variant options (dates, group sizes, difficulty levels), availability management and capacity controls, guide assignment and resource scheduling, customer portal for booking management and itinerary delivery, integration with global activity distribution networks (Viator/TripAdvisor Experiences, GetYourGuide, Bokun), and the waiver and pre-travel information collection workflows that tour operators need.
Build Your Tour Booking Platform →Corporate travel management applications: policy-compliant booking workflows (enforcing hotel rate caps and airline class restrictions automatically), approval chains for out-of-policy bookings, traveller profile management, duty of care tracking (knowing where travellers are at any time), expense integration, and reporting dashboards for travel managers showing spend by department, route, and policy compliance rate.
Build Your Corporate Travel Platform →HOW WE WORK
Six stages built around the specific challenges of travel software — from inventory architecture through GDS certification and AI feature deployment.
01
We define the inventory sources, booking flows, compliance requirements, and commercial model for your travel application before any development begins. The output is a technical architecture document covering API integration strategy, caching approach, and booking engine design. Deliverable: Product specification, API integration plan, and phased development roadmap.
02
For GDS projects: certification requirements, API access setup, and data normalisation design across multiple inventory sources. For channel manager integrations: availability caching strategy and rate synchronisation architecture. The API integration architecture determines the reliability and performance of everything else. Deliverable: Inventory connectivity architecture approved before development begins.
03
Backend API and database development in parallel with frontend and mobile development. Two-week sprints with working software at the end of each cycle. Availability caching and search are built first — these determine the user experience. Deliverable: Testable working software increments delivered every sprint.
04
Integration with GDS APIs, channel managers, payment gateways, and ancillary service providers — the most technically demanding phase of any travel software project. GDS certification testing, PCI DSS compliance verification, and end-to-end booking flow testing across all inventory sources. Deliverable: Verified booking flows with documented error handling and fallback logic.
05
LLM-powered trip planning integration, recommendation engine deployment, and price prediction model training on historical booking data. Conversational search interface development and personalisation algorithm validation. Deliverable: Deployed AI features with performance benchmarks and accuracy metrics.
06
Controlled launch with monitoring across all inventory sources and booking flows. Your dedicated travel tech developer remains available for new supplier integrations, AI feature additions, and scaling to new markets. Deliverable: Live platform with monitoring dashboards, documentation, and a roadmap for the next development phase.
Travel software projects have specific failure modes — GDS integrations that stall at certification, booking engines that fail under load, and OTA platforms with availability caching that breaks during peak demand. Automely's travel tech developers know these failure modes before the first sprint.
The Problem You Face
What Automely Does Differently
Generic development agencies take on travel projects without understanding GDS certification processes, channel manager API variability, or the specific reliability requirements of booking engines
Our travel tech developers have hands-on experience with GDS integrations, channel manager APIs, and the booking engine architecture that keeps transactions reliable under load
Availability from multiple inventory sources arrives in different formats, at different speeds, and with different reliability — making unified search feel impossible
We build normalisation layers and intelligent caching strategies that aggregate multi-source availability into consistent, fast search results regardless of individual API variability
Travel applications built without AI are transactional tools — users search for what they already know they want, with no discovery or personalisation
We integrate LLM-powered conversational planning and recommendation engines that turn travel apps into intelligent tools that understand what users want and assemble options around it
GDS integration projects stall at certification — the technical integration is complex, and the IATA accreditation process is separate from and often longer than the development
We guide clients through both the technical integration and the commercial setup — GDS certification and consolidator agreements — as part of the project scope
Corporate travel tools enforce policies manually — approvers review bookings individually without automated policy checking at the point of search
We build policy-compliant booking workflows that enforce rate caps and class restrictions at the search layer, so non-compliant options are never presented to travellers
Post-booking management is an afterthought — amendments, cancellations, and rebooking require calls to suppliers rather than in-app self-service
We build complete post-booking management into the platform from day one — amendments, cancellations, and rebooking through the same UI as the initial booking
TECH STACK
Every technology below is used in live travel software deployments — GDS connectivity, availability caching, AI personalisation, and multi-currency payment processing.
Node.js / NestJS
Python
Redis
PostgreSQL
Below are examples of travel software projects delivered by Automely. All client details are kept confidential.
SECTORS WE SERVE
Our travel technology developers understand the specific inventory sources, compliance requirements, and booking flow complexity for each travel sector below.
Online Travel Agencies (OTAs)
Full OTA platform development with multi-source inventory aggregation, GDS integration, B2B agent portals, and the commercial management layer that runs a travel distribution business.
OTA Platform Development
Hotel Groups & Independent Properties
Direct booking engine development, channel manager integration, property management system connectivity, and AI-powered upsell and personalisation for hotel direct channels.
Hotel Booking Technology
Tour Operators & Activity Providers
Tour catalogue management, availability and capacity systems, distribution network integrations (Viator, GetYourGuide, Bokun), and customer portals for tour operators and activity businesses.
Tour Operator Software
Corporate Travel Management
Policy-compliant corporate booking tools, approval workflows, duty of care tracking, expense integration, and travel manager reporting for corporate travel programmes.
Corporate Travel Platforms
Travel Technology Startups
AI-powered trip planning apps, travel personalisation platforms, price prediction tools, and new-model travel marketplaces for travel tech founders building from scratch.
Travel Startup Development
Destination Management Companies
DMC platform development: ground services booking, supplier management, group travel coordination, itinerary delivery, and B2B trade portal for destination management companies.
DMC Platform Development
FREQUENTLY ASKED QUESTIONS
How do you create a travel app?
Building a travel app requires decisions across four areas before writing any code: (1) inventory source — where does the travel content come from? Hotel availability via channel manager APIs, flights via GDS or NDC, tours via distribution network APIs, or direct supplier connections. (2) booking flow — what does the complete user journey look like from search to confirmation, and what post-booking workflows (amendments, cancellations, reminders) are required. (3) payments and commercial model — direct card payments, deferred billing, agent commissions, or a marketplace model with split payments. (4) compliance — IATA accreditation for flight ticketing, ATOL/ABTA bonding for packages in the UK, PCI DSS for payment card data.
The build itself involves: a backend service that aggregates and caches availability from inventory sources, a search and filtering layer, a booking engine that handles the full transaction including payment, a communications layer for confirmation and pre-travel information, and a post-booking management interface. Mobile apps add offline access for itineraries and boarding passes. An MVP for a hotel booking app using a single channel manager API can be built in 10–14 weeks. A multi-source OTA with GDS integration and full post-booking management is 20–40 weeks depending on scope.
What is a GDS and do I need it for my travel app?
A GDS (Global Distribution System) is a network that connects travel agents and booking platforms with airline, hotel, car rental, and other travel inventory. The three major GDSs are Amadeus, Sabre, and Travelport (Galileo/Worldspan). They provide a single API connection that gives access to the inventory of hundreds of airlines and thousands of hotels in a standardised format. You need GDS integration if you are building a flight booking platform that needs access to IATA airline inventory and published fares, a traditional OTA with broad inventory coverage, or a corporate travel management platform. You do not necessarily need GDS if you are building a platform focused on direct-connect NDC (New Distribution Capability) airline content, boutique hotel direct inventory, or activities and tours (which are distributed through separate networks like Viator and GetYourGuide).
| GDS | Coverage | Best For |
|---|---|---|
| Amadeus | Largest global GDS — strong in Europe and Latin America | International OTAs, European-market flight platforms |
| Sabre | Dominant in North America — strong airline and hotel content | US-market OTAs, corporate travel management |
| Travelport (Galileo/Worldspan) | Strong in Asia-Pacific and EMEA | Diversified multi-region inventory coverage |
What is an OTA platform and how does it work technically?
An OTA (Online Travel Agency) is a platform that aggregates travel inventory from multiple suppliers and sells it to consumers or B2B agents. Technically, an OTA platform consists of: a supplier connectivity layer (API integrations with GDSs, channel managers, car rental aggregators, and direct hotel and airline connections), a content database (property descriptions, images, amenity data — sourced from supplier APIs and enriched manually or via AI), a search and availability engine (querying live availability from cached and real-time sources), a pricing engine (applying markup rules, promotional rates, and dynamic pricing logic), a booking engine (managing the full transaction including payment, supplier booking confirmation, and PNR or booking reference management), a customer portal (booking management, amendments, cancellations), and a supplier management back-office (contract management, commission tracking, reconciliation).
Modern OTAs also add a machine learning personalisation layer and a conversational search interface.
How much does it cost to build a travel app?
Travel app development cost by type: a hotel booking app using a single channel manager API with mobile and web: $20,000–$40,000. A multi-property hotel direct booking engine with CMS and property management: $30,000–$60,000. A flight booking app with GDS integration (Amadeus or Sabre): $40,000–$80,000 — GDS integration alone is 4–8 weeks of work due to the protocol complexity and certification process. A full OTA platform with multi-source inventory aggregation, booking engine, and B2B agent portal: $80,000–$200,000+. An AI-powered personalised trip planning app with LLM integration: $30,000–$70,000 depending on the sophistication of the inventory connections. The largest cost variable after scope is supplier API integration — some APIs are well-documented REST APIs that integrate cleanly; others (particularly legacy GDS APIs) require specialised knowledge and significantly more development time.
Building an OTA, a hotel or flight booking app, a tour operator platform, or an AI-powered travel personalisation product? Tell us what you are building and we will match you with a dedicated travel tech developer.
No lock-in contracts • NDA on day one • GDS, OTA & AI travel expertise
