Choosing among online deals is risky, especially for sightseeing flights. Inexpensive flight deals often link to providers who only generate leads and do not conduct helicopter flights themselves. Some online mediators are also big gift-selling providers.
Helifliegen.de, on the other hand, operates its own tours. Located exclusively at the Frankfurt-Egelsbach airfield, Helifliegen.de has the experience and practice for take-offs and landings at Egelsbach (Germany’s largest private airfield). They perform tours in German and English language.
Another relevant factor was local knowledge. Other sightseeing flight providers are often headquartered elsewhere, and Frankfurt is only one of many places on their weekly flight lists. Such providers may rotate pilots, with a shifting schedule due to their remoteness; therefore they know much less about Frankfurt and the Rhine-Main area than pilots whose home airfield is Egelsbach.
And because Helifliegen.de is stationed directly at Egelsbach, it also has a fair-weather guarantee: you take off when the weather is especially nice!