The Graduate and Professional Student Senate has brought back their travel grants program this academic year and the first deadline is Friday, November 1st. You may get up to $300 ($500 for international) to attend a conference, but you must be actively participating in the conference (presenting a paper or poster, chairing a session or panel, etc.)
More information is available at:
http://depts.washington.edu/gpss/services/funding/travel-grants