# Who flies Chicago O'Hare → Toronto (any) nonstop?

**4 airlines fly Chicago O'Hare → Toronto (any) nonstop: Air Canada (YYZ, YTZ), American Airlines (YYZ), Porter Airlines (YTZ) and United Airlines (YYZ).**

| Airline | Routes | Book direct |
|---|---|---|
| Air Canada | O'Hare (ORD) → Toronto Pearson (YYZ)<br>O'Hare (ORD) → Billy Bishop Toronto City (YTZ) | https://www.aircanada.com |
| American Airlines | O'Hare (ORD) → Toronto Pearson (YYZ) | https://www.aa.com |
| Porter Airlines | O'Hare (ORD) → Billy Bishop Toronto City (YTZ) | https://www.flyporter.com/en-ca/ |
| United Airlines | O'Hare (ORD) → Toronto Pearson (YYZ) | https://www.united.com |

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Compare fares for ORD-YYZ: [Trip.com](https://www.trip.com/flights/chicago-to-toronto/tickets-ORD-YYZ/?allianceid=1094387&sid=2209817&trip_sub1=c4c6f3cbcbb845d69061b1005-713359) · [Aviasales](https://www.aviasales.com/search/ORD0911YYZ1?marker=713359). Affiliate links (Trip.com, Aviasales): picktheflight may earn a commission. It never changes the price or which airlines are listed.

On picktheflight: https://picktheflight.com/?from=ORD&to=@toronto · JSON: https://picktheflight.com/intents/ORD/@toronto

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Data built 2026-10-12 from airline schedule tables on Wikipedia ("Airlines and destinations"), matched by exact airport article; airline booking sites from Wikidata. Schedules change. Confirm the flight on the airline's own site before booking.