Travel grant support is available through SIGSOFT. Read the details of eligibility, here: https://www.sigsoft.org/resources/caps.html
To apply for travel assistance, please use the online application, here: https://awards.sigsoft.org/CAPS/
You needed to get your application in by August 31, 2018!
Before now, US residents attending the Doctoral Symposium, junior faculty attending the mentorship session, and students presenting papers at ESEC/FSE 2018 could apply for travel support by completing a form by October 1, 2018. For questions about this NSF-sponsored support email Gary Leavens (firstname.lastname@example.org).