Burdette earned her place in the main draw at Flushing Meadows courtesy of her performances on the USTA Pro Circuit in recent weeks.
The USTA had vowed to award a wild card to the women who collected the most ranking points from events in Yakima, Lexington and Vancouver.
And following her 6-3 6-0 victory over compatriot Jessica Pegula in Sunday's final at the VanOpen, that person was Burdette.
The 21-year-old had missed out on a wild card earlier in the year when she lost in the final of the NCAA college tournament to Nicole Gibbs.
Speaking after her win, Burdette, who posted a victory over Briton Anne Keothavong in the recent WTA tournament in Stanford, said: "I didn't know (about winning the wild card) until my coach came over.
"It's pretty exciting and I feel like I've got a second shot at it after losing the finals of NCAAs and working so hard this summer."
The US Open gets under way on August 27.