Short answer: there are four ways in. Hold your own IATA (or ARC) accreditation and sign directly with a GDS or airline; use a consolidator or host agency's credentials and ticket under their authority; sign up with an API aggregator that sells bookable content without requiring your accreditation; or start with affiliate and search-only feeds that pay commission on redirects. Which door opens for you depends on your company documents, financials and expected volumes, not on your code.
Why flight APIs are gated
Flight content is not open data. Ticketing moves money through settlement systems (IATA's BSP, or ARC in the US) that require accreditation and financial guarantees; airlines and GDSs police look-to-book ratios because search traffic costs them compute; and fraud in air ticketing is a constant. So every supplier asks the same underlying questions before issuing production keys: who are you legally, can you pay, will your traffic be sane, and who takes the loss if a booking goes wrong. Understand that, and the paperwork below stops feeling arbitrary.
The four access paths
Path 1: your own accreditation and supplier deals
The full-control route: your agency gains IATA accreditation (IATA now offers tiered models, GoLite, GoStandard and GoGlobal, with different financial requirements depending on whether you need cash ticketing), then signs subscriber agreements with a GDS such as Amadeus, Sabre or Travelport, or joins airline NDC programmes directly. You issue your own tickets and own the economics, but you also carry the financial guarantees and compliance load. Expect months, not weeks. We cover the accreditation process itself in our IATA accreditation guide and the technical side under GDS integration.
Path 2: consolidator or host agency credentials
A consolidator is an accredited wholesaler that resells air content, often with net fares, to sub-agents. Instead of your own accreditation you sign a sub-agent agreement, place a security deposit or maintain a prepaid balance, and receive API credentials that book and ticket under the consolidator's authority. In India this is the dominant model: platforms such as TBO and Tripjack expose exactly this kind of B2B API to registered agents; our TBO and Tripjack integration pages describe the technical shape. The trade-offs are dependence on the consolidator's terms and fares, and markups baked into some content.
Path 3: aggregator signup
API-first platforms aggregate airlines behind one modern API and, in managed models, let you sell without your own IATA or ARC accreditation because bookings run under the platform's supplier relationships (Duffel, for example, states this explicitly for its managed content). Onboarding is online: company details, activation checks, then production keys with usage-based fees. It is the fastest route to actually bookable content, bounded by the platform's carrier list and pricing. This path and the previous two can be combined; multi-source search is standard in the portals we build under flight API integration.
Path 4: affiliate and search-only programmes
If you only need to show fares and earn on referrals, affiliate programmes from metasearch players and OTAs provide search feeds or white-label widgets and pay commission on redirects or completed bookings, with no ticketing on your side. Barriers are low (a working website and an application form), which makes this the classic starting point for content and traffic businesses that may later upgrade to bookable APIs.
Documents suppliers typically ask for
| Document | Who asks for it | Why |
|---|---|---|
| Company registration / incorporation certificate | Everyone | Proof you are a legal entity, matching the name on the agreement |
| Tax registrations (for example GST and PAN in India) | GDSs, consolidators, aggregators | Invoicing and local compliance |
| Business address proof and KYC of directors | GDSs, consolidators | Anti-fraud and settlement risk checks |
| Bank details, and often a deposit or bank guarantee | Consolidators, BSP/IATA | Securing ticketing exposure |
| Financial statements or proof of funds | IATA accreditation, some GDS deals | Financial criteria for accreditation tiers |
| Website / product description and expected volumes | Everyone | Assessing look-to-book, fraud surface and commercial fit |
| Travel trade licence where applicable | Market-dependent | Some jurisdictions regulate selling travel |
Not every supplier asks for everything; aggregators sit at the light end, IATA accreditation at the heavy end (IATA's own accreditation pages list the current criteria per model and market).
From sandbox to production
- Sandbox first: build against test credentials with fake inventory; expect test fares and PNRs that behave slightly differently from production
- Certification: GDSs and some consolidators review your booking flows (search, price, book, cancel, error handling) before granting live keys
- Look-to-book limits: production keys come with search caps or ratios; caching and debounced search UIs keep you inside them
- Commercial go-live: deposits funded, agreements countersigned, fraud rules configured, then live keys are issued
- Controlled ramp: launch on a few routes, reconcile the first tickets against invoices, then scale traffic
Common rejection reasons
- No legal entity or mismatched names between the application, the website and the bank account.
- No working product or website: suppliers want evidence you are a real business, not a domain and a deck.
- Unrealistic volume claims, or a business model that is all search and no bookings.
- High-risk signals: markets or verticals with heavy fraud, unclear source of funds, or directors failing KYC.
- Insufficient financials for the accreditation tier or deposit requested.
- Policy conflicts, such as implying airline affiliation on your site, which also breaks advertising rules.
Most rejections are fixable: incorporate properly, launch a credible site, start on a lighter path and reapply with trading history. Sources: IATA travel agent accreditation pages (GoLite, GoStandard, GoGlobal); Duffel published access terms; supplier onboarding documentation from GDSs and Indian consolidator platforms. Requirements differ by market and change over time, so confirm current criteria with each supplier.
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.