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Direct flights from St Louis to Toronto

Did you mean Flights from Toronto to St Louis?

Flightmap/Flights from STL/STL to YYZ

St Louis

United States

STL

Lambert St Louis International Airport

Toronto

Canada

YYZ

Lester B. Pearson International Airport

Route
Nonstop service available
Distance
653 miles
Marketing airlines
2 airlines
Aircraft
2 aircraft types
Dates
Oct 19, 2026 – Oct 14, 2027

Observed award fares

A sample of one-way prices for one traveler from Roame’s fare cache. Points, fees, and seats describe the same observation. Availability can change; confirm with the loyalty program before transferring points.

Departure window: 2026-10-23 – 2026-11-21.

No recent fares appear in this limited preview. This does not mean the route is sold out. Use the search controls to check other dates and routes.

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Explore these airports and cities

  • Flights from STL
  • Flights to YYZ

St Louis to Toronto route overview

Lambert St Louis International Airport (STL) serves St Louis; Lester B. Pearson International Airport (YYZ) serves Toronto.

The airports are 653 miles apart by great-circle distance.

Roame's current schedule feed shows nonstop service from STL to YYZ.

Marketing airlines listed in the current schedule, including codeshare sellers, are Air Canada (AC) and United Airlines (UA). This list does not identify the operating airline for each flight; check the flight details before booking.

Published schedule dates span Oct 19, 2026 – Oct 14, 2027.

Marketing airlines on the St Louis to Toronto route

These are marketing airlines, including codeshare sellers. This list does not identify the operating airline for each flight; check the flight details before booking.

  • United Airlines (UA)Codeshare only

Airline alliance affiliations represented: Star Alliance

Aircraft flying from STL to YYZ

Frequently asked questions

Which airports serve the St Louis to Toronto route?

Lambert St Louis International Airport (STL) is the origin airport and Lester B. Pearson International Airport (YYZ) is the destination airport.

How far is Toronto from St Louis?

STL and YYZ are approximately 653 miles apart by great-circle distance.

Are there direct flights from STL to YYZ?

Yes. Roame's current schedule feed shows nonstop service from STL to YYZ.

Which airlines market flights from STL to YYZ?

Marketing airlines listed in the current schedule, including codeshare sellers, are Air Canada (AC) and United Airlines (UA). This list does not identify the operating airline for each flight; check the flight details before booking.

Which aircraft fly from STL to YYZ?

Aircraft listed in the current schedule include Canadair Regional Jet 900 (CR9) and Embraer 175 (short wing) (E75).

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