If you’re young enough, every conversion candidate thinks about the possibility of going on Birthright.
Converts from any movement can go on Birthright. Any trip provider and any trip by each provider. So a reform convert can go on a trip offered by an orthodox provider. That reform convert could even go on an orthodox trip, provided the convert is willing to abide by the expectations of that trip (and the expectations of the people who will be on that trip with you).
I went on Birthright after my conservative conversion, but I was on a trip organized by an orthodox organization and the specific trip was actually labeled as “modern orthodox.” I think that effectively just meant that the trip was shomer Shabbat and kosher l’mehadrin (a strict level of kashrut). Despite the label, my group ranged from the mostly-secular to Chabad to Satmar (yes, the famously anti-Zionist Satmar).
What are the actual procedural issues that can affect converts who want to go on Birthright? As far as I can tell, there are three primary concerns: 1) whether the conversion will be accepted; 2) whether you’re within the age range; and 3) which trip to go on.
The Conversion
Taglit Birthright Israel’s policy is that “Eligible individuals are those recognized as Jewish by the Jewish community or by one of the recognized denominations of Judaism…”