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C$ 233+ Direct flights from St. Louis

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
STL — YYZ
8 Jul — 15 Jul1
1 adult

Non-stop flights from St. Louis

Cheapest flights from St. Louis
Explore the most affordable flight options available from St. Louis. Find the lowest fares based on data from user searches, with prices last updated on 3 July 2025.

Thu 7/89:15 a.m.STL - YYZ
Nonstop2h 00mAir Canada
Sun 10/82:15 p.m.YYZ - STL
Nonstop2h 06mAir Canada
Deal found 1/7C$ 472
Fri 5/91:30 p.m.STL - YUL
Nonstop2h 30mAir Canada
Mon 8/96:10 p.m.YUL - STL
Nonstop2h 47mAir Canada
Deal found 3/7C$ 651
Wed 6/84:00 p.m.STL - YYZ
Nonstop2h 00mUnited Airlines
Sun 10/82:15 p.m.YYZ - STL
Nonstop2h 06mUnited Airlines
Deal found 1/7C$ 695
Thu 18/91:30 p.m.STL - YUL
Nonstop2h 30mUnited Airlines
Tue 23/96:10 p.m.YUL - STL
Nonstop2h 47mUnited Airlines
Deal found 2/7C$ 893
Thu 31/79:15 a.m.STL - YYZ
Nonstop2h 00mMultiple Airlines
Mon 4/82:15 p.m.YYZ - STL
Nonstop2h 06mMultiple Airlines
Deal found 1/7C$ 1,085

Find direct flights from St. Louis within your budget

Use the slider to find direct flights from St. Louis within your budget. Price data is based on user searches made on Cheapflights. Over the past seven days, Cheapflights users made 629,999 searches. This data was last updated on 3 July 2025.

Fly to

Pearson Intl

Route

Depart

Return

Price

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Thu 7/8

9:15 a.m.-12:15 p.m.

Nonstop2h 00m

Toronto Pearson Intl

Mon 11/8

6:35 p.m.-7:45 p.m.

Nonstop2h 10m

C$ 469

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Fri 5/9

1:30 p.m.-5:00 p.m.

Nonstop2h 30m

Montreal Pierre Elliott Trudeau Intl

Mon 8/9

6:10 p.m.-7:57 p.m.

Nonstop2h 47m

C$ 651

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Wed 6/8

4:00 p.m.-7:00 p.m.

Nonstop2h 00m

Toronto Pearson Intl

Sun 10/8

2:15 p.m.-3:21 p.m.

Nonstop2h 06m

C$ 695

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Thu 18/9

1:30 p.m.-5:00 p.m.

Nonstop2h 30m

Montreal Pierre Elliott Trudeau Intl

Tue 23/9

6:10 p.m.-7:57 p.m.

Nonstop2h 47m

C$ 893

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Thu 31/7

9:15 a.m.-12:15 p.m.

Nonstop2h 00m

Toronto Pearson Intl

Mon 4/8

2:15 p.m.-3:21 p.m.

Nonstop2h 06m

C$ 1,085

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Sun 10/8

4:00 p.m.-7:00 p.m.

Nonstop2h 00m

C$ 233

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Thu 18/9

1:30 p.m.-5:00 p.m.

Nonstop2h 30m

C$ 330

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Sun 2/11

4:05 p.m.-7:06 p.m.

Nonstop2h 01m

C$ 358

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Thu 18/9

1:30 p.m.-5:00 p.m.

Nonstop2h 30m

C$ 410

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/7

Best time to book a flight from St. Louis

Have a flexible travel schedule? Discover the best time to fly from St. Louis with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Reviews of airlines flying non-stop to St. Louis

Get insights into the airlines that provide direct flights from St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight from St. Louis. Reviews last updated Cheapflights.
Read through reviews of airlines serving St. Louis, such as Alaska Airlines,Delta, andUnited Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Boarding

8.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Boarding

8.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
Delta
8.0
Very good
7,982 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Boarding

8.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
United Airlines
7.4
Good
8,861 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Boarding

8.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Boarding

8.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
WestJet
7.2
Good
2,917 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Boarding

8.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.

Related info for your journey

Access useful and relevant information related to your journey from St. Louis. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated 3 July 2025.

  • Where can you fly direct from St. Louis?

    Currently, the most popular direct flight destination from St. Louis is Montreal Pierre Elliott Trudeau Intl Airport.

  • How long is a direct flight from St. Louis?

    While the flight duration depends heavily on the destination, on average, travelers can expect non-stop flights from St. Louis to last approximately 2h 30m on average. The quickest direct flight from St. Louis at this time departs from St. Louis (2h 30m), while the longest leaves from St. Louis (2h 30m).

  • What is the best time of year to fly direct from St. Louis?

    If you're seeking the lowest price on a direct flight from St. Louis, October is worth consideration as prices are at their lowest, on average. In terms of the number of daily non-stop flights, February offers travelers the most options.

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