How do I Contact Delta Airlines at Williston Airport? Delta Airlines is a prominent US carrier. If you're trying to find a way to contact Delta Airlines at Williston Airport, you're in the right place. The airport covers approximately 1600 acres. To learn how to reach Delta Airlines at Williston Airport, check out the blog below. You can also find Delta Airlines' phone numbers like +1-800-971-7347 (OTA) or +1-800-221-1212 on the airline's official contact page. https://skyairbus.com/blog/how-do-i-contact-delta-airlines-at-williston-airport/