---
title: "Guides | Practical guides for travel agencies"
description: "Step-by-step guides for travel agencies on preparing itineraries and travel documents, and on supporting your clients throughout the trip."
url: "https://viaondo.com/blog/category/guides"
language: "en"
updated: "2026-10-17"
---

# Guides

Step-by-step guides for travel agencies on preparing itineraries and travel documents, and on supporting your clients throughout the trip.

- [How long is a flight? What scheduled flight times actually cover](https://viaondo.com/blog/how-long-is-a-flight): The printed time is gate to gate and includes taxi. Why the same route differs each way, what connections add, and how to answer a client in one sentence.
- [Travel documents offline: what clients need on their phone abroad](https://viaondo.com/blog/offline-travel-documents-clients-phone): Which documents clients should keep offline on their phone, how boarding passes work without data, passport copies and privacy, 112, and a checklist.
- [How to send a changed itinerary to clients without confusion](https://viaondo.com/blog/send-changed-itinerary-to-clients): After an airline retime or a hotel swap: what to tell clients, how to mark each change, keep one current version, confirm they saw it and what EU rules require.
- [PDF, link or app: how to send an itinerary to travel clients](https://viaondo.com/blog/send-itinerary-to-clients-pdf-link-or-app): A PDF by email, a shared web link or a branded app: how each one handles offline use, changes, link privacy, file size and phones abroad, for small agencies.
- [Time zones and daylight saving time in client itineraries](https://viaondo.com/blog/time-zones-daylight-saving-time-itineraries): How to write flight and transfer times in a client itinerary: local times, the zone, the 2026–2027 clock changes, 23- and 25-hour days, and a checklist.
- [How much does travel agency software cost? Per seat, flat or per passenger](https://viaondo.com/blog/travel-agency-software-cost): What itinerary software costs an agency of 1, 3 or 10 people, from the prices vendors list, and how per-seat, flat and per-passenger pricing compare.