Birth and residence: China, P.R.
Current: F1 in US, with valid I20 & I94 (valid until 2018), visa expired, visitor visa of Canada
Travel: Toronto -> Chicago -> Beijing
My question is, can I layover in the Chicago? I know students with F-visa can return to the US within 30 days from Canada. However, my case is a little bit special since I'm not returning US, but layover in the US to take another flight.
Though I can renew my US visa in Toronto, the risk is, if I cannot get cleared, I cannot re-enter US, and I will miss the planned flight.