Often not only the project leaders travel, but also the participating students. Due to the group nature of the trips, StuROP^x does not submit individual business trip invoices (according to receipts). Instead, we work with travel allowances. The decisive factor here is the word "allowance", i.e. the costs incurred are not reimbursed, but an allowance for the costs (travel, accommodation, etc.) is granted. The travel allowance is based on the distance compensation according to the Bundesreisekostengesetz (BRKG): 20 cents/ km; with a maximum amount of 130 € per person.

Field trips that are essential for research can also be very costly. If the cost of a field trip exceeds €750, the project proposal must be accompanied by confirmation from the institute that it will cover the additional costs. Students' personal contributions should be kept to a minimum.