$175 Find Cheap Flights from Toronto to St. Louis - Compare and Save

Among airlines operating Toronto Pearson Intl Airport to St. Louis flights:

• Air Canada: offers free seat selection
• United Airlines: offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

Only Air Canada operates flights between Toronto Pearson Intl Airport and St. Louis.

Flights from Toronto Pearson Intl Airport to St. Louis usually depart from Toronto Pearson Intl (YYZ) and arrive at Lambert-St Louis (STL).

Here are some options for this route, based on selected ticket types and cabin classes:

• Air Canada: a cabin bag and a checked bag in Economy Class
• United Airlines: a cabin bag and a checked bag in Business Class

Bag allowance can vary by ticket type, cabin class, route and airline, so travelers should check the fare details before booking.

Two cabin classes are available on flights from Toronto Pearson Intl Airport to St. Louis:

• Economy Class
• First Class

On this route, nonstop flights are cheaper than layover options on average. Nonstop fares average $479 round-trip, compared to $512 via a layover through Chicago O'Hare Intl (ORD).

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $25–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

The Canadair (Bombardier) Regional Jet 900 family is used most often on this route, operated mainly by United Airlines and Air Canada. Other aircraft seen on the route include Embraer 175 variants.

One-stop flights from Toronto Pearson Intl Airport to St. Louis most commonly connect through:

• Chicago O'Hare Intl (ORD) - 77% of one-stop connections
• Detroit Metropolitan Wayne County (DTW) - 20% of one-stop connections
• Atlanta Hartsfield-Jackson (ATL) - 3% of one-stop connections

Chicago O'Hare Intl (ORD) handles the largest share of one-stop connections on this route.

On the Toronto Pearson Intl Airport to St. Louis route, being flexible with your departure day can save you up to 19%. Saturday is the cheapest day at $450 round-trip on average, while Monday is the most expensive at $549: a $99 difference. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

Afternoon is the busiest departure period on Toronto Pearson Intl Airport to St. Louis flights, with 100% of flights leaving in that window. Morning departures account for 0%, evening flights for 0%, and night flights for 0%.

Some of the most popular sights in St. Louis are Downtown St. Louis, Busch Stadium and Enterprise Center. These are among the most viewed places in St. Louis on KAYAK.

These are the earliest and latest flight times available from Toronto Pearson Intl Airport to St. Louis:

• Earliest: departs at 12:55 pm and lands at 3:05 pm
• Latest: departs at 7:15 pm and lands at 9:25 pm.

The flight takes about 2h 10m.

Last-minute fares on this route - booked within 2 weeks of departure - run 77% above the route average of $481. Book 9 weeks before departure for the lowest fares.

A nonstop flight from Toronto Pearson Intl Airport to St. Louis takes 2h 10m, covering 653 miles.

Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $321 to $1,445. That means the highest observed fare was about 5x higher than the lowest one.

One-way fares from Toronto Pearson Intl Airport to St. Louis are currently lower than usual. Average one-way flight prices are about $240, which is 30% below the typical average for this route.

Flying via Detroit Metropolitan Wayne County (DTW) gives the shortest average 1-stop total travel time at 4h 17m, compared with 5h 40m via Atlanta Hartsfield-Jackson (ATL) and 5h 49m via Chicago O'Hare Intl (ORD).

St. Louis is 1 hour behind Toronto Pearson Intl Airport (Central Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

Lambert-St Louis Airport (STL) hosts 5 major car rental companies, with daily rates starting from around $31 for economy cars. Top options include:
• Hertz
• Budget
• Alamo
• Enterprise Rent-A-Car
• Payless

Round-trip flights from Toronto Pearson Intl Airport to St. Louis range from $421 to $605, with an average of $481 over the past 12 months. Anything below $421 counts as a good deal.

Air Canada is the only airline on the Toronto Pearson Intl Airport to St. Louis route offering in-flight Wi-Fi. Pricing depends on fare class.