Break the site down into components

Question

Drupal

Interested in the software part for compound routes
www.momondo.ru
What modules are used and how are they configured (including views, filters, etc.)? How is the structure implemented?
1. What does the “composite routes” search form consist of?
2. Issuance itself?
3. Is it possible to build on Drupal?

Answer 1

real, but you have to code. from the admin panel with a mouse it will not work.