Hakan Sevimoğlu Hakan SevimoğluFreelance Developer · 18 yrs
BiletBank · GDS · OTA

Flight Booking Website Development: Online Travel Agency Software with BiletBank Integration

I build flight booking websites for travel agencies and startups that handle everything from flight search to 3D Secure payment, and from ticketing to refunds and PNR lookup. A live example is ucakbiletcisi.com.

Quick answerFlight booking website software is a web platform where a travel agency searches flights through a GDS or consolidator (such as BiletBank) connection, sells tickets to customers online, takes payment via 3D Secure and issues tickets automatically. Hakan Sevimoğlu built ucakbiletcisi.com, taking its BiletBank (Trevoo web service) integration live after completing the certification process: live flight search, branded fares and fare rules, real bank installments, 3D Secure payment, foreign-national passengers, child/infant pricing, booking cancellation and refunds, and commission/markup management all run in one system.

Written by Hakan Sevimoğlu · Last updated:

End-to-end BiletBank integration

The integration covers BiletBank's entire web service sales chain: login, flight search, fare hold, passenger data submission, pre-booking, payment and ticket issuance (finalize). On ucakbiletcisi.com, this chain was taken live after passing BiletBank's certification scenarios; it is not a test setup but a system that issues real tickets.

The airline's branded fares (e.g. Saver, ExtraFly, Business) are displayed with their baggage allowance, refund and change rules; the customer pays for the selected fare and the system books exactly that fare. Round-trip, child and infant prices are calculated from BiletBank's real pricing chain, so the cart total matches the amount charged via 3D Secure exactly.

3D Secure payment and real bank installments

Payment is taken from the customer's card via 3D Secure; if 3D verification fails, no ticket is issued. Installment options don't come from a static table but from the real bank installment and interest data BiletBank returns for that booking. Extra amounts such as service fees, agency commission, markup and ticket protection are included in the payment and collected in a single 3D transaction.

Agency panel: refunds, cancellations, commission, LTT

From the admin panel you manage bookings, tickets, refunds and cancellations (including cancelling unticketed bookings), commission and markup rules, price packages, SMS/email notifications and campaigns. The look-to-book (LTT) ratio enforced by consolidators is monitored, with a warning before you risk a penalty.

Features that grow sales

PNR-based ticket lookup, online check-in redirection, price alerts, flexible date and route fare maps, smart (natural-language) search, multi-language support (Turkish, English, Russian, German, Arabic) and multi-currency support. A passport flow for foreign-national passengers; the Turkish ID number requirement applies only to Turkish citizens.

On the SEO side, automatic route pages and a split sitemap are generated for city pairs, targeting organic traffic from thousands of long-tail searches like "İstanbul Antalya uçak bileti".

What I offer

  • BiletBank integration

    Search, hold, pre-booking, payment and ticketing; certified and live.

  • Branded fares & rules

    Branded fares, baggage, refund and change rules.

  • 3D Secure payment

    No ticket is issued without a verified payment.

  • Real bank installments

    Using the installments and interest returned by BiletBank.

  • Passenger types

    Adult, child, infant and foreign-national passengers.

  • Refunds & cancellations

    Refunds from the panel, cancellation of unticketed bookings.

  • Commission & markup

    Service fee, package and campaign rules.

  • LTT tracking

    Look-to-book ratio monitoring and alerts.

  • PNR & check-in

    Ticket lookup, online check-in, SMS/email notifications.

  • Route SEO pages

    Automatic pages and sitemap for city pairs.

Technologies I use

PHP 8MVCMySQLSOAP / XMLBiletBank (Trevoo WS)3D SecureREST APICroni18n

Official documentation and resources

Standards and official documentation I follow in projects:

Example projects

A selection of live projects serving real users.

How we work

  1. Free intro call

    We clarify needs, existing systems and goals together.

  2. Quote & roadmap

    Scope, technology, timeline and budget within 24 hours.

  3. Staged development

    Weekly demos and a live test environment.

  4. Launch & support

    Go-live, training and ongoing maintenance.

Free pre-analysisThe first meeting and roadmap are completely free, with no obligation.

Staged delivery and approvalYou review each module on a test environment before we move on.

Written scope and rightsScope, delivery and source code rights are defined in the contract.

Frequently asked questions

What do I need to launch a flight booking website?

You need an agency agreement with a GDS or consolidator (such as BiletBank), a TÜRSAB (Association of Turkish Travel Agencies) license, a virtual POS and sales software integrated with that service. The software side covers search, payment, ticketing and the agency panel.

How long does a BiletBank integration take?

It depends on scope and certification scenarios; on ucakbiletcisi.com the integration went live after certification was completed, and that experience shortens timelines on new projects.

Can I sell tickets in installments?

Yes; installment options are offered using the real bank installments BiletBank returns for that booking and are collected via 3D Secure.

Can agency commission and service fees be added?

Yes; commission, markup, service fees and protection fees are managed from the panel and included in the payment.

Can you connect my existing agency website to BiletBank?

Yes; your existing site and database are reviewed, and the BiletBank integration is added without breaking the working flow.

Can hotel, transfer or tour sales be added?

Yes; hotel, transfer and tour modules can be added to the same platform via the relevant supplier APIs.

WhatsAppFree Quote