| Cheap Flights: Austin to/from Toronto $182-$233 r/t â Priceline / American Airlines / Delta Delta and American Airlines have round-trip flights from Austin (AUS) to Toronto (YYZ) for $182-$233 with a connection. Flights January, February, April, September, and October. Weekends available. Note: There may be a 4-hour connection for the cheapest return fares. Note: Carry-on bag is allowed for free on American Airlines. You can avoid paying for seat selection by accepting the randomly assigned seat at the gate. We donât charge a subscription fee. All of our deal notifications are available for FREE via Instagram, Facebook, Twitter, our Webpage, and our E-mail list. If you are paying someone a subscription fee for our content, you are being ripped off. Read More Cheap Flights: Austin to/from Toronto $182-$233 r/t â Priceline / American Airlines / Delta . | 