$147+ Cheap flights from Canada to St. Louis (STL)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/27. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — STL
Oct 26 — Nov 21
Round-trip
1 adult, Economy
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Find cheap flights from Canada to St. Louis with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Canada to St. Louis
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Cheapest flights from Canada to St. LouisExplore the most affordable flight options available from Canada to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 26, 2026.
Explore the most affordable flight options available from Canada to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 26, 2026.
This American Airlines deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/207:29 am -
1 stop10h 24m
Tue 10/277:28 am -
1 stop9h 16m
Deal found 9/21![American Airlines logo]()
$318
This United Airlines deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/72:50 pm -
1 stop16h 05m
Wed 11/118:50 am -
1 stop12h 14m
Deal found 9/23![United Airlines logo]()
$322
This United Airlines deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/242:50 pm -
1 stop6h 48m
Tue 1/59:13 am -
1 stop7h 41m
Deal found 9/22![United Airlines logo]()
$323
This United Airlines deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/111:36 pm -
1 stop5h 23m
Sun 11/155:00 am -
1 stop9h 45m
Deal found 9/21![United Airlines logo]()
$324
This American Airlines deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/141:15 pm -
1 stop8h 42m
Sat 10/175:00 am -
1 stop8h 33m
Deal found 9/21![American Airlines logo]()
$329
This American Airlines deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/221:15 pm -
1 stop8h 42m
Mon 10/267:29 am -
1 stop9h 15m
Deal found 9/20![American Airlines logo]()
$330
This United Airlines deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/91:36 pm -
1 stop5h 23m
Mon 11/165:00 am -
1 stop9h 45m
Deal found 9/25![United Airlines logo]()
$336
This United Airlines deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/246:30 pm -
2 stops21h 48m
Mon 1/189:13 am -
1 stop7h 41m
Deal found 9/24![United Airlines logo]()
$337
This American Airlines deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/211:15 pm -
1 stop8h 42m
Wed 10/285:00 am -
1 stop8h 33m
Deal found 9/22![American Airlines logo]()
$343
This American Airlines deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/223:14 pm -
1 stop10h 05m
Fri 10/235:00 am -
1 stop8h 33m
Deal found 9/21![American Airlines logo]()
$346
This SmartFares deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/246:00 am -
1 stop7h 44m
Sat 10/316:02 am -
1 stop6h 53m
Deal found 9/25![Alaska Airlines logo]()
$346
This United Airlines deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1312:10 pm -
1 stop8h 20m
Wed 10/145:36 pm -
1 stop6h 50m
Deal found 9/24![United Airlines logo]()
$348
Best flights from Canada to St. LouisDiscover carefully curated flight deals from Canada to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 26, 2026.
Discover carefully curated flight deals from Canada to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 26, 2026.
This United Airlines deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/242:50 pm -
1 stop6h 48m
Tue 1/59:13 am -
1 stop7h 41m
Deal found 9/22![United Airlines logo]()
$323
This American Airlines deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/221:15 pm -
1 stop8h 42m
Mon 10/267:29 am -
1 stop9h 15m
Deal found 9/20![American Airlines logo]()
$330
This Delta deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/242:36 pm -
1 stop5h 05m
Mon 1/186:30 am -
1 stop8h 54m
Deal found 9/24![Delta logo]()
$337
This SmartFares deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/246:00 am -
1 stop7h 44m
Sat 10/316:02 am -
1 stop6h 53m
Deal found 9/25![Alaska Airlines logo]()
$346
This United deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/192:50 pm -
1 stop16h 05m
Mon 11/304:05 pm -
1 stop19h 45m
Deal found 9/22![Multiple Airlines logo]()
$351
This Bravofly deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/249:50 am -
2 stops11h 31m
Sat 10/313:35 pm -
1 stop23h 15m
Deal found 9/25![WestJet logo]()
$392
This Air Canada deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/207:15 am -
2 stops8h 45m
Wed 10/218:55 am -
2 stops9h 34m
Deal found 9/25![Air Canada logo]()
$443
This United Airlines deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/141:35 pm -
1 stop5h 24m
Sun 1/248:30 am -
1 stop15h 05m
Deal found 9/21![United Airlines logo]()
$324
This United Airlines deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/252:50 pm -
1 stop6h 48m
Tue 1/199:13 am -
1 stop7h 41m
Deal found 9/24![United Airlines logo]()
$337
This United Airlines deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1312:10 pm -
1 stop8h 20m
Wed 10/145:36 pm -
1 stop6h 50m
Deal found 9/24![United Airlines logo]()
$348
This Mytrip deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/275:00 pm -
3 stops23h 40m
Sat 10/317:59 pm -
2 stops30h 31m
Deal found 9/22![Multiple Airlines logo]()
$452
This United Airlines deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2112:10 pm -
1 stop8h 20m
Wed 10/286:00 am -
1 stop7h 45m
Deal found 9/23![United Airlines logo]()
$366
This Air Canada deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/209:20 am -
2 stops10h 00m
Wed 10/2112:10 pm -
1 stop10h 17m
Deal found 9/21![Air Canada logo]()
$509
This FlightHub deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/121:25 am -
1 stop9h 04m
Sun 12/135:31 pm -
2 stops28h 29m
Deal found 9/22![WestJet logo]()
$521
This Mytrip deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/238:35 pm -
2 stops23h 22m
Mon 10/266:35 pm -
2 stops21h 35m
Deal found 9/20![Multiple Airlines logo]()
$475
This American Airlines deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/52:00 pm -
2 stops21h 08m
Thu 11/1211:35 am -
2 stops24h 16m
Deal found 9/21![American Airlines logo]()
$530
This Delta deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/206:10 pm -
1 stop3h 41m
Tue 10/276:47 am -
2 stops10h 22m
Deal found 9/22![Delta logo]()
$571
This FlightHub deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/138:45 am -
1 stop11h 53m
Tue 12/226:20 am -
2 stops17h 15m
Deal found 9/24![WestJet logo]()
$526
This United Airlines deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/912:10 pm -
1 stop8h 20m
Mon 10/125:10 am -
1 stop6h 41m
Deal found 9/23![United Airlines logo]()
$396
This Kiwi.com deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/197:25 pm -
2 stops42h 59m
Mon 10/266:35 pm -
1 stop18h 30m
Deal found 9/21![Multiple Airlines logo]()
$481
This American Airlines deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/302:25 pm -
1 stop21h 26m
Mon 11/28:15 pm -
2 stops15h 36m
Deal found 9/24![American Airlines logo]()
$545
This United deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/137:00 am -
1 stop4h 53m
Sun 12/134:05 pm -
1 stop9h 01m
Deal found 9/22![Multiple Airlines logo]()
$485
This American Airlines deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1112:10 pm -
1 stop11h 05m
Sun 11/156:02 am -
1 stop5h 21m
Deal found 9/25![American Airlines logo]()
$548
This Air Canada deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/162:50 pm -
1 stop4h 51m
Mon 10/264:05 pm -
1 stop6h 50m
Deal found 9/21![Air Canada logo]()
$604
This FlightHub deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/139:00 pm -
2 stops11h 09m
Mon 10/195:35 pm -
1 stop18h 25m
Deal found 9/23![WestJet logo]()
$553
This Delta deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/157:45 am -
1 stop6h 35m
Sun 10/186:47 am -
1 stop5h 49m
Deal found 9/24![Delta logo]()
$624
This United Airlines deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/207:00 am -
2 stops9h 17m
Wed 10/2112:20 pm -
1 stop9h 35m
Deal found 9/25![United Airlines logo]()
$433
This United deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/131:37 pm -
1 stop4h 49m
Tue 12/224:05 pm -
1 stop9h 01m
Deal found 9/23![Multiple Airlines logo]()
$490
This Air Canada deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2110:50 am -
1 stop7h 51m
Fri 10/238:55 am -
1 stop7h 32m
Deal found 9/21![Air Canada logo]()
$640
This Delta deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2611:50 am -
1 stop7h 41m
Wed 12/212:31 pm -
1 stop6h 09m
Deal found 9/23![Delta logo]()
$669
Last-minute flights from Canada to St. LouisDiscover last-minute flight deals from Canada to St. Louis. Data last updated September 26, 2026 and is based on user searches.
Discover last-minute flight deals from Canada to St. Louis. Data last updated September 26, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/412:10 pm -
1 stop8h 20m
Sat 10/101:36 pm -
1 stop6h 42m
Deal found 9/24![United Airlines logo]()
$375
This United Airlines deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/712:10 pm -
1 stop8h 20m
Sat 10/101:36 pm -
1 stop6h 42m
Deal found 9/22![United Airlines logo]()
$350
This Delta deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/81:20 pm -
1 stop9h 24m
Sun 10/112:22 pm -
1 stop10h 14m
Deal found 9/21![Delta logo]()
$356
This United Airlines deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1312:10 pm -
1 stop8h 20m
Wed 10/145:36 pm -
1 stop6h 50m
Deal found 9/24![United Airlines logo]()
$348
This American Airlines deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/141:15 pm -
1 stop8h 42m
Sat 10/175:00 am -
1 stop8h 33m
Deal found 9/21![American Airlines logo]()
$329
This American Airlines deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/207:29 am -
1 stop10h 24m
Tue 10/277:28 am -
1 stop9h 16m
Deal found 9/21![American Airlines logo]()
$318
This American Airlines deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/211:15 pm -
1 stop8h 42m
Wed 10/285:00 am -
1 stop8h 33m
Deal found 9/22![American Airlines logo]()
$343
This United Airlines deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2112:10 pm -
1 stop8h 20m
Wed 10/286:00 am -
1 stop7h 45m
Deal found 9/23![United Airlines logo]()
$366
This American Airlines deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/221:15 pm -
1 stop8h 42m
Mon 10/267:29 am -
1 stop9h 15m
Deal found 9/20![American Airlines logo]()
$330
This American Airlines deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/223:14 pm -
1 stop10h 05m
Fri 10/235:00 am -
1 stop8h 33m
Deal found 9/21![American Airlines logo]()
$346
This SmartFares deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/246:00 am -
1 stop7h 44m
Sat 10/316:02 am -
1 stop6h 53m
Deal found 9/25![Alaska Airlines logo]()
$346
This Mytrip deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/287:15 am -
2 stops11h 25m
Wed 11/46:44 pm -
2 stops19h 36m
Deal found 9/24![Multiple Airlines logo]()
$388
One-way flights from Canada to St. LouisSearch for one-way flight options from Canada to St. Louis. Find affordable one-way fares based on user searches. Data last updated September 26, 2026.
Search for one-way flight options from Canada to St. Louis. Find affordable one-way fares based on user searches. Data last updated September 26, 2026.
This Trip.com deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/279:35 pm -
2 stops20h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![Multiple Airlines logo]()
$147
This Kiwi.com deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1012:20 pm -
2 stops30h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Multiple Airlines logo]()
$179
This Kiwi.com deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/89:15 am -
2 stops33h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![Multiple Airlines logo]()
$180
This Delta deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/77:00 am -
1 stop7h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Delta logo]()
$184
This American Airlines deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/101:17 pm -
1 stop9h 58m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![American Airlines logo]()
$188
This Kiwi.com deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/109:20 pm -
2 stops19h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/25![Multiple Airlines logo]()
$189
This United Airlines deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1012:10 pm -
1 stop8h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/25![United Airlines logo]()
$190
This American Airlines deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/23:15 pm -
1 stop9h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![American Airlines logo]()
$194
This United Airlines deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1712:10 pm -
1 stop8h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![United Airlines logo]()
$195
This United Airlines deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/94:08 pm -
2 stops22h 49m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![United Airlines logo]()
$196
This Justfly.com deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/176:00 am -
1 stop7h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Alaska Airlines logo]()
$197
This Trip.com deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/124:45 pm -
2 stops21h 36m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![Multiple Airlines logo]()
$199
Find flight deals from Canada to St. Louis
Keep the following information in mind while searching for Canada to St. Louis flight deals. Data was last updated September 26, 2026.
Round-trip from | $318 (American Airlines) |
|---|---|
One-way from | $147 (Trip.com) |
Popular in | March |
Cheapest in | January |
Average price | $630 |
Good round-trip deal | $538 or less |
Good one-way deal | $289 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Canada to St. Louis that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 26, 2026.
Use the filters below to find and compare flights from Canada to St. Louis that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
WinnipegSt. Louis
YWG Winnipeg - STL Lambert-St Louis
YWGSTL
Winnipeg
Tue 10/27
9:35 pm-5:40 pm
2 stops20h 05m
Lambert-St Louis
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$147
VancouverSt. Louis
YVR Vancouver Intl - STL Lambert-St Louis
YVRSTL
Vancouver Intl
Sat 11/7
7:00 am-3:38 pm
1 stop7h 38m
Lambert-St Louis
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$184
EdmontonSt. Louis
YEG Edmonton - STL Lambert-St Louis
YEGSTL
Edmonton
Tue 11/10
9:20 pm-4:40 pm
2 stops19h 20m
Lambert-St Louis
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$189
VancouverSt. Louis
YVR Vancouver Intl - STL Lambert-St Louis
YVRSTL
Vancouver Intl
Mon 11/9
9:30 am-7:59 pm
1 stop9h 29m
Lambert-St Louis
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$190
VancouverSt. Louis
YVR Vancouver Intl - STL Lambert-St Louis
YVRSTL
Vancouver Intl
Sat 10/10
12:10 pm-10:30 pm
1 stop8h 20m
Lambert-St Louis
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$192
VancouverSt. Louis
YVR Vancouver Intl - STL Lambert-St Louis
YVRSTL
Vancouver Intl
Mon 10/12
12:10 pm-10:30 pm
1 stop8h 20m
Lambert-St Louis
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$192
VancouverSt. Louis
YVR Vancouver Intl - STL Lambert-St Louis
YVRSTL
Vancouver Intl
Sat 10/17
12:10 pm-10:30 pm
1 stop8h 20m
Lambert-St Louis
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$195
EdmontonSt. Louis
YEG Edmonton - STL Lambert-St Louis
YEGSTL
Edmonton
Tue 10/27
4:30 pm-3:23 pm
2 stops21h 53m
Lambert-St Louis
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$201
TorontoSt. Louis
YYZ Toronto Pearson Intl - STL Lambert-St Louis
YYZSTL
Toronto Pearson Intl
Mon 11/2
1:00 pm-1:21 pm
2 stops25h 21m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$205
VancouverSt. Louis
YVR Vancouver Intl - STL Lambert-St Louis
YVRSTL
Vancouver Intl
Sat 10/10
8:25 am-8:20 pm
2 stops9h 55m
Lambert-St Louis
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$212
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Canada to St. Louis
Have a flexible travel schedule? Discover the best time to fly to St. Louis from Canada with our price prediction graph.
YYZ-STL
YVR-STL
YWG-STL
YUL-STL
YHZ-STL
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.
Cheapflights Insights
Everything you need to know about your flight from Canada to St. Louis
CA0-STL
YYZ-STL
YVR-STL
YWG-STL
YUL-STL
What is the cheapest month to book a flight from Canada to St. Louis?
Currently, January is the cheapest month in which you can book a flight from Canada to St. Louis (average of $421). Flying from Canada to St. Louis in December is currently the most expensive (average of $603). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from CA to STL?
Find hourly flight availability from Canada to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 26, 2026.
When flying from Canada to St. Louis, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 28% versus a flight in the afternoon.
Weekly flight availability from Canada to St. Louis
Explore weekly flight availability from Canada to St. Louis. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated September 26, 2026.
The most flights from CA0 to STL are scheduled on a Monday (4 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (4 on average).
How far ahead should I book a flight from Canada to St. Louis?
Booking 46 days in advance of your planned departure date is, on average, the best time to get cheap flights from Canada to St. Louis. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Reviews of airlines servicing St. Louis
Get insights into the airlines that provide service to 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 to St. Louis. Reviews last updated September 26, 2026.
Read reviews from past customers who have flown Alaska Airlines,United Airlines, andWestJet from Canada to St. Louis. 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.
Overall
7.9
Boarding
8.1
Entertainment
7.0
Food
7.0
Crew
8.5
Comfort
7.8
Reviews
1 / 20
2.0
MediocreChris,Aug 2026
GEG - SFO
Overall
7.9
Boarding
8.1
Entertainment
7.0
Food
7.0
Crew
8.5
Comfort
7.8
Reviews
1 / 20
2.0
MediocreChris,Aug 2026
GEG - SFO
Overall
7.9
Boarding
8.1
Entertainment
7.0
Food
7.0
Crew
8.5
Comfort
7.8
Reviews
1 / 20
2.0
MediocreChris,Aug 2026
GEG - SFO
Overall
7.9
Boarding
8.1
Entertainment
7.0
Food
7.0
Crew
8.5
Comfort
7.8
Reviews
1 / 20
2.0
MediocreChris,Aug 2026
GEG - SFO
Overall
7.9
Boarding
8.1
Entertainment
7.0
Food
7.0
Crew
8.5
Comfort
7.8
Reviews
1 / 20
2.0
MediocreChris,Aug 2026
GEG - SFO
Overall
7.9
Boarding
8.1
Entertainment
7.0
Food
7.0
Crew
8.5
Comfort
7.8
Reviews
1 / 20
2.0
MediocreChris,Aug 2026
GEG - SFO
Related info for your journey
Find useful and relevant information for your journey from Canada to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near St. Louis?
Book flights to St. Louis if you plan to visit one of these locationsFairview Heights
O'Fallon
Fenton
Swansea
Eureka
Wentzville
Maryland Heights
Collinsville
Edwardsville
Glencoe
Chesterfield
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Canada and St. Louis flights
Browse other Canada and St. Louis flight options. Last updated on September 26, 2026.
Popular flight searches
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Other flights to St. Louis
Explore flights to St. Louis departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 26, 2026.
Canada to St. Louis flights
Consider these flights traveling from Canada to St. Louis.
Top 5 airlines flying from Canada to St. Louis
Discover the top 5 airlines that operate flights from Canada to St. Louis. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 26, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$147 | Average$509 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$231 | Average$483 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$292 | Average$481 | FlexibilityNo cancel fee | On-time60% | |
| Cheapest$344 | Average$611 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$368 | Average$577 | FlexibilityNo cancel fee | On-time71% |