You can't deduct your travel expenses in attending a church convention if you go only as a member of your church rather than as a chosen representative. You can, however, deduct unreimbursed expenses that are directly connected with giving services for your church during the convention."
" Conventions . (IRS Publication 17) Click here for IRS Publication
17
If a qualified organization selects you to attend a convention as its representative, you can deduct unreimbursed expenses for travel, including reasonable amounts for meals and lodging, while away from home overnight in connection with the convention.
