Arrangements (Travel arrangements) is the word you need.
Could I please return to you about attending your ceremony only after you decide on its location? I ask because travel arrangements might prove difficult to book once I learn about the location at a later date.
I can't find an easy source of a definition of 'travel arrangements' but here's a quote from Wikipedia.
In addition to dealing with ordinary tourists most travel agencies have a separate department devoted to making travel arrangements for business travelers and some travel agencies specialize in commercial and business travel only.
Wikipedia contributors, "Travel agency," Wikipedia, The Free Encyclopedia, http://en.wikipedia.org/w/index.php?title=Travel_agency&oldid=633727772 (accessed November 18, 2014).
Here's a link to a page specifically about travel arrangements. http://traveltips.usatoday.com/travel-arrangements-13279.html (from USAToday).
Whether you are booking an exotic vacation or business trip, making travel arrangements can be a chore. It takes time to find the best prices and coordinate logistics through each step of your journey.
And with thanks to JLG here is a definition from "web2.uvcs.uvic.ca"
plans for where and when you are travelling, how you are travelling, and where you are sleeping
which can be found at http://web2.uvcs.uvic.ca/courses/glossary/popup.aspx?TermID=13094