Route guide

Houston to Toronto (IAH-YYZ): Nonstop Upgrade & Award Space

Air Canada and United Airlines fly nonstop between Houston (IAH) and Toronto (YYZ), roughly 33 times a week. Because so many carriers compete on this route, premium seats turn over daily, and upgrade or award space can open and close within hours. 2LNR tracks confirmed availability on every IAH to YYZ departure, so you know which flights have space before you book.

Data current as of July 21, 2026, refreshed on an ongoing basis as new schedules and seats are confirmed.

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33
Nonstop flights a week
1,281 mi
Nonstop distance
Free
To get started

Confirmed upgrade & award space on every IAH to YYZ departure

2LNR tracks confirmed upgrade and award availability on American, Delta, and Alaska and across 30 airlines, segment by segment, date by date. Open the calendar for Houston to Toronto to see which departures have real space, or watch the route and get alerted when space opens.

See real availability

Confirmed upgrade and award seats on each IAH to YYZ departure, checked against live inventory so you know what is open before you book.

Set an alert

Premium inventory turns over fast. Watch this route and 2LNR notifies you when space appears on a date you are tracking.

Plan on the map

See IAH to YYZ on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Houston to Toronto nonstop

Carriers operating IAH to YYZ nonstop in the current schedule. 2LNR tracks confirmed upgrade and award space on each of them.

  • Air Canada
  • United Airlines
See IAH to YYZ on the interactive map →

Frequently asked questions about IAH to YYZ

How far is Toronto from Houston?
IAH to YYZ covers about 1,281 miles nonstop. Flight times vary by aircraft and season; each scheduled departure on this page lists its own times.
Which airlines fly nonstop from IAH to YYZ?
Air Canada and United Airlines fly the route nonstop. 2LNR tracks confirmed upgrade and award space on both of them.
How many flights a week are there from IAH to YYZ?
About 33 nonstop flights a week run between Houston and Toronto in the current schedule, operated by Air Canada and United Airlines. Frequency shifts by season; the calendar on this page reflects what's currently scheduled.
How do I check upgrade or award availability on IAH to YYZ?
Open the IAH to YYZ calendar on this page to see confirmed upgrade and award space by date. You can also set an alert on the Houston to Toronto route, and 2LNR will notify you when space opens. It's free to start.

Never miss IAH to YYZ upgrade or award space

Track confirmed availability, set alerts, and book with confidence. Free to start, no credit card required.

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