Video shows as Rob got down on one knee to propose to Sarah at the Terminal 3 Chili's Grill & Bar.
The two met there three years ago in the same spot, over "El Presidente margaritas."
WATCH: O'hare proposal in front of Chili's
"Congratulations to the sweet couple, and cheers to many more adventures," Chicago O'Hare International Airport said on social media.
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