It took the top seeds only 70 minutes to wrap up the final 6-3 6-3 against the fourth seed Kazakh-Australian combination at Flushing Meadows.
There were no sparks in the final as both Dellacqua and Shvedova were off colour. They never looked like troubling the top seeds, who did not even need their A game to clinch the issue.
Such has been the class of the Sania and Hingis that they did not drop a single set en route to the title and only once they had to win a set through tie-breaker.
Sania's win capped off a memorable US Open for Indians as Leander Paes had won the mixed doubles trophy with Hingis yesterday, in a repeat show of the Wimbledon.
Sania's ground-strokes from the back of the court and Hingis' agility at the net was too good for their rivals. It was Sania and Hingis' second Major title in a row, having won the Wimbledon championships earlier this season.
Sania now has five Grand Slam titles in her collection. She won three Mixed Doubles trophies, the last one coming at this very venue with Bruno Soares in 2014.
In an extraordinary season, Hingis has won five Grand Slam titles this season, taking her overall number to 20. She won three titles with Paes and two with Sania.
"It's a great year for us. It's already been a great year for me. I became world number one. We were a solid team and were in with a chance in all Slams. We are happy to come through. I won mixed doubles here last year, great to come bak and win this," Sania said after her win and also thanked the Indians out there in stands who came out to support them.

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