If you're planning on visiting the Seychelles on a shoestring budget, better be sure it's a high-quality shoestring. The Seychelles are an expensive place to visit. First, the airfare per person can be anywhere from 1000 to 2000 Euros alone, although, today, with the advent of discount fares, it may well be possible to find a a fare for much less, whether on a 747 jumbo jet from London or on a smaller plane flown by a regional airline out of Asia or Africa.
Also, you should realize that the Seychelles International Airport on Mahé is not the only gateway to these islands. The Mahé Quay and harbour in the town of Port Victoria is yet another way to arrive via whatever seafaring vehicle you care to use to cross the Indian Ocean.