Flight APIs are essential integrations in the travel industry, enabling travel agencies, OTAs, and booking platforms to access real-time flight availability, pricing, schedules, fares, and reservation capabilities from multiple airlines. These APIs connect travel sellers with full-service carriers, low-cost airlines, and global distribution systems (GDS), allowing them to offer a seamless flight search and booking experience to customers worldwide.

With access to thousands of airlines across global routes,

Flight APIs

help travel businesses deliver competitive airfares, dynamic fare rules, multi-city options, and instant ticketing directly through their own travel portal platforms. By integrating advanced flight data—such as seat maps, baggage rules, and fare families—travel companies can enhance user experience and streamline booking operations without maintaining separate airline partnerships.

Flight APIs are web-based interface that allows travel agencies and developers to integrate live airline inventory—including schedules, fares, availability, PNR creation, cancellations, and ticketing—into their booking systems. It connects directly to GDS providers (like Amadeus, Sabre, Travelport), airline consolidators / aggregators, and LCC aggregators to deliver real-time flight data and transactions.

To

integrate flight APIs

into your booking portal, you must first partner with a GDS or airline consolidator to obtain API credentials such as API key, username, password, and environment URLs (sandbox and production). Once authentication details are provided, your backend team can use REST or SOAP endpoints to connect your system with the flight supplier’s API.

> Flight search (one-way, round-trip, multi-city)

> Fare rules, baggage details, and seat availability

> Booking and PNR creation

> Ticket issuance, voiding, and refunds

> Airline content (logos, classes, fare families)

The supplier’s developer portal includes documentation, SDKs, and test cases for smoother integration. Your system must handle secure authentication, error responses, fare validation, and caching to ensure high performance.

Once tested in the sandbox environment and approved by the technology provider, your platform can go live with fully automated flight search, booking, and ticketing.

Integrating Flight APIs brings powerful benefits to OTAs, travel agencies, and booking platforms:

> Access to thousands of routes and airlines worldwide

> Real-time pricing, availability, and instant ticket confirmation

> Dynamic search filters (airlines, stops, timings, fare type, cabin class)

> Complete reservation management, including PNR handling and updates

>  Better revenue opportunities through markup control and branded fares

Flight APIs also enhance user experience by providing accurate schedules, baggage details, fare rules, and multi-airline itineraries—leading to higher conversions and customer satisfaction.

The ideal tech stack depends on your system architecture, but commonly used technologies include:

These languages efficiently handle API calls, ticketing workflows, authentication, and error handling.

These frameworks help create fast, modern, and responsive flight search UIs.

MySQL

PostgreSQL

MongoDB

AWS, Google Cloud, Azure

Docker & Kubernetes for scaling traffic

This stack ensures secure, stable, and high-performing flight booking operations.

The

cost of integrating flight APIs

varies depending on complexity, booking modules, and the technology used. Typical developer rates are:

Total project cost depends on whether you require B2B, B2C, corporate modules, automated ticketing, or advanced search features.

Finding the top

flight API providers

begins with researching established travel tech companies, GDS systems, and airline consolidators that offer reliable and comprehensive flight API solutions. Look for providers with global coverage, strong partnerships with full-service carriers (FSCs) and low-cost airlines (LCCs), as well as proven expertise in delivering scalable travel APIs. 

Companies connected with Amadeus, Sabre, Travelport, aggregators like Agoda and major airline networks typically provide more accurate data and broader route options, making them a strong starting point for evaluation.

Another critical factor is the API documentation quality, response speed, and uptime reliability. Top flight API providers must offer well-structured technical documentation, clear endpoint instructions, sample responses, and active developer support. Check if they provide modern REST/SOAP APIs, multiple filtering options, and features like fare rules, baggage details, PNR management, and ticketing functionalities. High API uptime (99.9% or more) and low latency are essential for delivering a smooth customer experience.

You should also consider the commercial model and licensing structure. Flight APIs may come through GDS partnerships requiring IATA accreditation, while aggregator-based solutions often support non-IATA agencies & travel marketplace as well. Compare pricing models such as per-transaction fees, monthly subscriptions, or revenue-sharing setups.

 Look for transparent pricing, direct settlement options, and flexible markups that support profit margins. Evaluating the provider’s onboarding process, customer service availability, and multilingual support will also help you understand long-term operational ease.

Finally, assess the provider’s reputation and industry presence. Check online reviews, case studies, LinkedIn recommendations, and real user feedback to verify reliability and service quality. Attending travel tech events, webinars, or industry forums can also give you insights into trusted providers and their latest innovations. 

By combining technical evaluation, commercial comparisons, and industry credibility checks, you can confidently select a top-tier flight API provider that aligns with your business goals and growth strategy.

Below is the list of top flight API providers (2025) as per geography and contents. Check top providers of flight API worldwide as following -

Amadeus

flight API

is a set of application programming interfaces (APIs) provided by Amadeus, a global technology company that offers travel-related solutions and services for the travel industry. The Amadeus API allows developers to access and integrate travel-related data and functionality into their applications and services. 

The Amadeus API provides access to a wide range of travel-related services, including flight search and booking, hotel search and booking, car rental, destination content, and more. These APIs allow developers to access real-time pricing and availability information, as well as other relevant data and services, to help users plan and book their travel.

The Amadeus API is designed to be flexible, scalable, and easy to integrate into a variety of applications and services. It facilitates a variety of programming languages and can be used to build a range of travel-related products, including websites, mobile apps, and travel management systems. 

Provab Technosoft is one among the leading travel technology providers specializing in API integration for travel products. They offer a suite of travel APIs, including flight API, hotel API, car API, transfer API, and sightseeing API. 

They aim to help clients maximize travel inventory by providing a unified travel booking API connection and rich flight content aggregated from multiple sources. Provab has a team of over 300 professionals who work to turn their client's ideas into reality using an agile methodology.

They develop travel portals, airline reservation systems, extranets, and custom applications to meet their client's needs. The company's travel technology and API integration team are dedicated to ensuring a seamless and efficient integration process. Provab is a leading flight API provider, and its IATA-accredited subsidiary helps provide high-quality travel inventory. Provab Technosoft is committed to assisting clients in achieving their travel technology goals.

Travelport is a global travel commerce platform that provides travel technology solutions and services to travel agencies, corporations, and airlines. They offer an API known as the Travelport

Universal API

, a web services interface that provides access to Travelport's content and services. The API integrates flight, hotel, car rental, and other travel content into travel-related applications and websites.

This allows travel agencies and corporations to create custom travel experiences for their customers using the comprehensive travel content and services Travelport provides. The Travelport Universal API allows access to a wide range of content, including low-cost carriers, full-service airlines, and over 400,000 hotel properties. Additionally, the API offers several features, such as dynamic pricing, real-time booking and cancellation, ancillary services, access to a wide range of travel content, flexibility, and customization.

Sabre is a leading technology provider for the global travel industry. They offer a suite of APIs, known as the Sabre APIs, which provide access to the company's vast portfolio of travel content and services. The Sabre flight APIs allow travel companies, agencies, and airlines to build custom travel applications and websites, integrating flight, hotel, car rental, and other travel content into their platforms. The Sabre APIs provide access to real-time data and services, including dynamic pricing and availability information for flights, hotels, and car rentals.

Developers can use the APIs to create unique and personalized travel experiences for their customers, including booking and canceling reservations, accessing ancillary services, and viewing detailed itinerary information. In addition to its APIs, Sabre provides a range of resources for developers, including documentation, sample code, and technical support, to help them get started with the APIs and integrate them into their applications and websites. Sabre's commitment to innovation and customer success makes it a trusted partner for travel companies and agencies looking to build custom travel experiences for their customers.

Travel Boutique Online (TBO) is a B2B travel platform that provides travel technology solutions to travel agencies and tour operators. TBO's API allows developers to integrate TBO's services, such as flight booking, hotel booking, and holiday packages, into their websites or mobile applications. This integration enables travel agencies and tour operators to offer their customers a more comprehensive range of travel products and services. The TBO API provides access to a wide range of travel products, including flights, hotels, holiday packages, transfers, and activities. Developers can use the API to retrieve information on available travel products, prices, and availability, as well as to make bookings and manage reservations. Therefore, TBO API provides travel companies with a flexible platform to integrate TBO's travel technology solutions and offer their customers a wide range of travel products and services.

PKFare is a travel tech firm that offers APIs to travel agencies and firms to access travel data and make reservations. PKFare provides a range of travel API for various travel services, including Flight APIs, Hotel APIs, Car Rental APIs, and Transfer APIs. Each of these APIs is designed to be flexible and scalable, allowing travel companies to customize their integration based on their specific needs and requirements.

PKFare offers APIs for developers in the travel industry to integrate travel information and booking services into their platforms. The APIs are designed to be easy to use and flexible, allowing developers to customize their integration based on their specific needs and requirements. The APIs cover a range of travel services, including flight information, hotel properties, car rentals, tour packages, and transfer services. With PKFare's APIs, developers can access real-time data and make bookings directly through the API. This helps streamline operations and improve the overall customer experience. The APIs are updated frequently to ensure developers have accurate and updated information.

Skyscanner APIs are a set of application programming interfaces (APIs) offered by Skyscanner, a leading global travel company. These APIs give developers access to Skyscanner's enormous travel data database, including information on hotel rates and availability, airline itineraries, costs, and schedules.

The APIs allow developers to build custom travel search and booking applications for their clients, offering them a convenient and efficient way to find and book their travel arrangements. The search experience may be tailored using the APIs, including the ability to filter results based on factors like departure and arrival timings, the length of the flight, and the number of stops. The APIs also offer flexible payment options, making it easy for customers to book their travel arrangements.

In addition to flight and hotel APIs, Skyscanner also provides APIs for accessing the information on car rentals and travel insurance. These APIs allow developers to offer a complete travel solution to their clients, making it easier for them to find and book all of the components of their trip. Skyscanner APIs are a valuable resource for developers to build custom applications that provide clients with an efficient travel booking experience.

Expedia is a leading online travel company that provides APIs for travel information and booking services. Expedia's Rapid API is a platform that gives access to Expedia's travel APIs. The platform is made easy for developers to access and integrate Expedia's travel information and booking services into their websites. With Rapid API, developers can access various travel information and services, including flights, hotels, car rentals, and activities. The APIs provided by Rapid API are easy to use, scalable, and reliable, ensuring a smooth integration process and a high level of performance. Rapid API provides various tools and resources to help developers get started, including documentation, code samples, and support.

With Expedia's APIs, developers can access real-time information and make bookings directly through the API. The APIs are designed to be easy to use and scalable, allowing for a smooth integration process and a high level of performance. The information provided by the Expedia APIs is updated frequently to ensure that developers have access to the most accurate and up-to-date information available.

Kiwi is a travel search engine that helps users find and book flights, hotels, and rental cars. It offers APIs that allow developers to integrate the Kiwi platform into their websites and applications. The Kiwi APIs provide access to various travel-related data, including flight schedules, pricing information, and booking functionality. Developers can use the APIs to build custom travel booking systems, integrate flight and hotel search functionality into their websites, or create travel-related mobile applications. Kiwi's APIs are designed to be easy to use and integrate, and the company provides extensive support so that developers can build scalable and robust travel applications.

Priceline is a famous online travel company that offers various travel-related services, including airfare, hotel booking, car rental, and vacation packages. They also provide APIs that developers can use to access the company's travel inventory and integrate into their websites or mobile apps. The Priceline Partner Solutions API offers an effortless way to connect multiple travel product sources, providing instant access to dynamic Hotel, Rental Car, and Flight content.

It is designed to cater to various business requirements, making it easy to integrate Hotel, Rental Car, and Flight products and their features directly into your website, mobile app, or application. This provides customers with the best travel deals and a smooth booking experience. The APIs from Priceline are designed to be used by companies involved in the travel industry, including online travel agents, travel meta-search engines, and travel blogs. They allow companies to access significant content of travel products and services by providing clients with a smooth travel booking experience.

Google Travel APIs are a set of APIs provided by Google that allows developers to integrate travel-related information and services into their applications. The APIs provide access to flight schedules, hotel prices, and points of interest, and they can be used to build travel-related applications and services such as travel search engines, trip planners, and travel guides.

The Google Travel Partner API is designed for travel companies and developers who want to access Google's rich travel data to enhance their applications and services. With the Travel Partner API, developers can build travel search engines, trip planners, and travel guides that provide customers with up-to-date information about flights and hotels, including pricing, availability, and amenities. The Travel Partner API is part of the Google Cloud Platform, and developers can use it to build travel-related applications and services that access Google's rich travel data.

Travelfusion is a technology company that provides APIs for travel websites and companies to access and display real-time content such as flight and hotel availability, pricing, and booking information. The Travelfusion API allows developers to integrate Travelfusion's content directly into their website or application. This enables travel companies to offer their customers a more comprehensive range of travel options.

The Travelfusion Direct Connect XML API system offers a wealth of features and integration options, enabling a direct connection between a system and Travelfusion's online booking system. With up-to-date availability and fully automated booking processes, this system provides customers with various options, control, and flexibility. The constantly updated system is supported by a technical support team, making access easy.

Travelfusion has recently introduced a Fast, Lightweight XML API system for flights, hotels, and prepackaged tours. This API system has been optimized for rapid integration and small responses, minimizing the processing required on the customer side. The API features "fuzzy" ranking and filtering, direct connections from a browser, and support for various protocols making it ideal for multiple platforms and solutions, including mobile services and widgets. With its fast path to product release and ability to quickly adapt to new features, the Fast API is a versatile solution that can meet the diverse needs of customers.

Duffel is a travel technology company founded in 2017; they are associated with some of the world's top airlines. Using their platform, any business can build applications to search and book flights, make payments and manage reservations. Duffel's APIs are flexible and customizable. It offers a variety of travel management tools to help companies optimize their travel operations and provide the best possible experience for their customers.

Verteil Technologies is a leading travel tech firm and certified at NDC Level 4, providing the most cutting-edge and widely-used tools for distribution in the future. The flagship product of Verteil is Verteil Direct Connect (VDC). It is a business-to-business travel platform that aids travel agents with airline content discovery, booking, and modification. On VDC, travel agencies may reserve NDC tickets for 33+ full-service airlines.

Verteil offers one API for all Airlines. Travel agencies can access all 33+ airlines using a single, standardized API offering. Any new airline that joins VDC will have easy API integration and be accessible to agents at no extra charge. Tailored and unique tech services depending on the specific needs of the firm, are provided. VDC flight API for Travel Agents features includes full support, error handling, automated booking, speed management, real-time reports via online portals, and easy configuration.

SITA is a leading provider of air transport communications and IT solutions. They offer a range of APIs to help air transport firms integrate their systems with SITA's services. Some of the SITA APIs available include Flight Information APIs which Provide real-time flight status information, flight schedules, and other relevant data. Messaging APIs; affordable, cloud-based RESTful connectivity for data interchange across ATI messaging users. Baggage APIs enable real-time tracking and management of baggage, including baggage reconciliation, handling, and claims. Airline Retail API Provide a range of services that help airlines improve their retail offerings, including pricing, booking, and ancillary services. Airlines, airports, ground handlers can use these APIs, and other air transport organizations to streamline operations, improve customer experience, and reduce costs.

The search engine for travel, Kayak, offers APIs so that developers can access its data and incorporate it into their own applications. Developers can use these APIs to get data like airline and hotel availability, costs, and reviews. The Flight Search API, Hotel Search API, and Car Search API are a few of the Kayak APIs. Developers must register for an API key, abide by the API documentation, and guidelines in order to fully utilize the Kayak APIs.

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