A new report by environmental campaign group Greenpeace says that air travel within Europe is up to 30 times cheaper than traveling by more sustainable trains.
Try https://www.international-bahn.de/ - I was redirected there when I tried it from the German DB Navigator app. It looks like it would work. The only problem is that you have to get from one train station to another one on your own in Paris.
Try https://www.international-bahn.de/ - I was redirected there when I tried it from the German DB Navigator app. It looks like it would work. The only problem is that you have to get from one train station to another one on your own in Paris.