Booking, reservation & revenue 
management software

S3 Passenger is the latest and best available sales and distribution suite on the
market. Thousands out of the box features allow rail and bus users to benefit
from our proven technology, short time to market and powerful self-services.

10.5 billion journey searches
85 ms response time
172.5 million passenger segments
89 Net promoter score

Unique Selling Points

  • Designed from scratch to meet the needs of bus and rail operators;
  • Innovation at its core, ongoing product enhancements to maintain leading global position;
  • New functionalities become available to all users every 3 months;
  • Agile and multi-disciplinary innovation teams;
  • Proven technology mitigates operator’s implementation and operational risks;
  • Cost efficient solution vs expensive bespoke software development by operator;
  • Easy to implement – cloud based suite;
  • Hands on user training supported with detailed functional and technical documentation;
  • Strong involvement of users in product roadmap and prioritisation;
  • Users will push industry standardisation & operator / mobility interoperability.

1 real time system 3 focus areas

  • Provide end-customer easy and efficient self-services to create and change bookings.

  • Offer operators a powerful, flexible and cutting edge technology platform to replace their outdated reservation systems and effectively battle for market share and customer preference.

  • Leverage operator’s user experience and industry input in ongoing S3P innovations, to remain the best in class product platform status with already more than thousands out of the box features.

Customer Booking Flow Click to view more information Download product brochure

The S3P modules work closely together in the booking flow to guide a customer through the “orientation” phase to select a journey with available inventory and products, proceeding into the “booking” phase where the selection is converted to a reservation that can be completed, expanded (with ancillary products and passenger information) and finally paid and confirmed in a user friendly flow. A typical S3P based booking flow in which the modules orchestrate these activities looks like this:

Orientation phase

Booking phase

Retrieve travel options
Retrieve products
and prices
Store customer information (optional)
Fulfill purchased tickets
Retrieve availability
Create provisional booking + reserve seats
Register payment of
the booking
An S3 Passenger visual tour

We can imagine our comprehensive solution appears overwhelming. That's why we offer a brief visual tour to help you understand it even better...

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Revenue Management

S3 RM is a software module within the S3 Passenger platform to maximize and control revenue from available market demand for rail of bus operations. In order to perform this task, S3 RM analyses historical demand and forecasts future demand for each departure, analyses the found price elasticity figures in transactional data in order to make the demand forecast price sensitive, and optimises the required booking limits based on the ongoing progress of a future departure in it’s sales cycle. With S3 RM, Revenue analysts are always fully in control by means of dashboards and real-time access to price and inventory settings.

Multi-channel distribution

  • The strength of S3P is represented by its core modules combined with sales and distribution API’s
  • All modules are managed through a single GUI back office environment (browser accessible), offering users an easy to use S3P platform.
  • Sales and distribution channel integration is facilitated with a standardised (and well-documented) set of API’s
  • Configurable prices, rules & conditions per distribution channel
  • Operators can create their own tailor-made (B2C) customer booking experience
  • S3P can be integrated with any client system based on web technology, mobile technology or other types of API driven (global) distribution channels such as ticket vending machines, station desk sales and B2B partner integrations.
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Latest updates
S3 Passenger is constantly evolving and improving, you can find out more about the major releases that Sqills releases every three months.
Jul 2020
S3 Passenger 2020.5
Jun 2020
S3 Passenger 2020.4
Apr 2020
S3 Passenger 2020.3
Feb 2020
S3 Passenger 2020.2
Jan 2020
S3 Passsenger 20.1

Our customers

With a continuously growing list of S3 Passenger users, Sqills offers an internationally proven solution.


S3 Passenger 2020.5

COVID-19 continues to dominate the headlines. With the ongoing impact of Covid-19 in the travel industry Sqills had to act: S3 Passenger now offers built-in features to apply social distancing during seat allocation. This is achieved by avoiding proximity between people who do not share a household, on schedule level. When enabled, the seating algorithm will automatically apply logic to ensure that seats directly opposite or directly next to an allocated seat are never occupied by a person originating from another booking.
  • Increased work in the payment features of S3 Passenger
  • The voucher logic is improved
  • The re-accommodation functionality has been improved
  •  S3 Passenger introduces a new screen called the Schedule gaps screen

S3 Passenger 2020.4

While most people were enjoying their summer holidays S3 Passenger kept on changing and improving. Many of the notable improvements came in terms of seat selection functionality and S3 Inventory.
  • S3P introduces a new product type code “Seat Selection” that can be used in the context of seat selection logic at a specific price point
  • The option to offer bundles to passenger groups that actually mix different main products in one offer
  • More flexibility in the management of rules around which passenger fields are mandatory on a booking
  • More tariff features on S3 Inventory
  • A wide range of smaller changes and improvements

S3 Passenger 2020.3

The third update of the year for S3 Passenger. Much of the focus for the third update of the year went to S3 Inventory and improving API calls while also adding a few new API calls. A RM system to create the logical availability data is no longer necessary, this can be done as part of the bucket update procedure.
  • Product seat preferences can be considered when allocating a seat
  • Warnings are returned when seat property preferences have not been met during allocation
  • Tariffs can now be bound to more than one discount card
  • Functionality is now available to manage the relationship between tariffs explicitly

S3 Passenger 2020.2

The second of eight releases this year, this one with a variety of new features and more data to be rendered via new API calls. Other improvements are the expansion of sales channels settings, a whole new set of API calls is available to manage organizations in S3P, and new after-sales features.
  • Implementation of new after-sales features
  • Functionality to create or change a booking segment is extended
  • S3 Echo now supports a new event called Booking confirmation
  • GTFS export logic is extended
  • It is now possible to use multiple S3 Passenger instances

S3 Passsenger 20.1

The first release of this year is a fact, a release with already many new features. This also marks the first time that S3 Passenger will release an update eight times per year. One of the largest and most noticeable changes is the new look and feel of the S3 Passenger backoffice. However, there are several other improvements in the first update of the year.
  • When voiding tickets, a reason code can be given to explain why voiding has been applied
  • S3 Echo has been extended with a lot of new events
  • Carriage restriction rules logic describes how carriage restriction rules can be managed on equipment template level
  • Repricing of ticket items in case of through fare offers is now possible