Upvote:3
Nowadays even on long-haul flights many airlines have fares with no luggage included. Lufthansa for instance has an "Economy Light" fare like this.
Some search engines will allow you to specify if you want only fares which include luggage.
Note also that pricing can be weird. I made a random search on the Lufthansa site, and the "Economy Light" fare (without luggage) turned out to be more expensive than the "Economy Basic" fare with includes luggage:
If you want the most accurate information, it is usually best to check on the ticketing airline's website directly.