$161+ Cheap flights from Canada to St. Louis (STL)
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 5/28. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — STL
Jun 10 — Jun 171
Round-trip
1 adult, Economy
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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
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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 May 11, 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 May 11, 2026.
This Delta deal was found by Cheapflights users on 5/11. 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.
Fri 6/122:45 pm
YVR
- STL
1 stop6h 38m
Delta
Sat 6/205:00 pm
STL
- YVR
1 stop7h 35m
Delta
Deal found 5/11![Delta logo]()
$303
This United Airlines deal was found by Cheapflights users on 5/6. 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 9/223:35 pm
YVR
- STL
1 stop6h 15m
United Airlines
Sat 9/267:00 am
STL
- YVR
1 stop15h 49m
United Airlines
Deal found 5/6![United Airlines logo]()
$312
This American Airlines deal was found by Cheapflights users on 5/10. 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 9/212:55 pm
YHZ
- STL
1 stop9h 29m
American Airlines
Wed 9/303:29 pm
STL
- YHZ
1 stop20h 41m
American Airlines
Deal found 5/10![American Airlines logo]()
$336
This Kiwi.com deal was found by Cheapflights users on 5/10. 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.
Wed 7/812:30 am
YYC
- STL
1 stop16h 07m
Multiple Airlines
Mon 7/134:52 pm
STL
- YYC
1 stop29h 58m
Multiple Airlines
Deal found 5/10![Multiple Airlines logo]()
$337
This Delta deal was found by Cheapflights users on 5/7. 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 8/256:30 am
YHZ
- STL
1 stop7h 17m
Delta
Wed 8/2612:30 pm
STL
- YHZ
1 stop8h 48m
Delta
Deal found 5/7![Delta logo]()
$337
This American Airlines deal was found by Cheapflights users on 5/7. 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 6/811:57 pm
YVR
- STL
1 stop14h 36m
American Airlines
Tue 6/231:42 pm
STL
- YVR
1 stop11h 17m
American Airlines
Deal found 5/7![American Airlines logo]()
$347
This United Airlines deal was found by Cheapflights users on 5/10. 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 6/35:25 pm
YOW
- STL
1 stop7h 04m
United Airlines
Sat 6/612:55 pm
STL
- YOW
1 stop4h 53m
United Airlines
Deal found 5/10![United Airlines logo]()
$351
This oojo deal was found by Cheapflights users on 5/7. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/213:30 pm
YHZ
- STL
1 stop27h 19m
WestJet
Wed 9/3010:45 am
STL
- YHZ
1 stop8h 55m
WestJet
Deal found 5/7![WestJet logo]()
$360
This United Airlines deal was found by Cheapflights users on 5/9. 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 8/273:35 pm
YVR
- STL
1 stop6h 05m
United Airlines
Mon 8/318:00 am
STL
- YVR
1 stop16h 25m
United Airlines
Deal found 5/9![United Airlines logo]()
$364
This Air Canada deal was found by Cheapflights users on 5/6. 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.
Sat 5/232:40 pm
YOW
- STL
1 stop6h 45m
Air Canada
Sun 5/247:05 am
STL
- YOW
1 stop5h 00m
Air Canada
Deal found 5/6![Air Canada logo]()
$371
This United Airlines deal was found by Cheapflights users on 5/6. 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 9/166:00 am
YOW
- STL
2 stops10h 38m
United Airlines
Sat 9/191:18 pm
STL
- YOW
1 stop7h 17m
United Airlines
Deal found 5/6![United Airlines logo]()
$372
This American Airlines deal was found by Cheapflights users on 5/6. 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 6/21:15 pm
YYZ
- STL
1 stop8h 15m
American Airlines
Wed 6/37:05 am
STL
- YYZ
1 stop9h 39m
American Airlines
Deal found 5/6![American Airlines logo]()
$372
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 May 11, 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 May 11, 2026.
This Delta deal was found by Cheapflights users on 5/11. 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.
Fri 6/122:45 pm
YVR
- STL
1 stop6h 38m
Delta
Sat 6/205:00 pm
STL
- YVR
1 stop7h 35m
Delta
Deal found 5/11![Delta logo]()
$303
This United Airlines deal was found by Cheapflights users on 5/6. 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 9/223:35 pm
YVR
- STL
1 stop6h 15m
United Airlines
Sat 9/267:00 am
STL
- YVR
1 stop15h 49m
United Airlines
Deal found 5/6![United Airlines logo]()
$312
This American Airlines deal was found by Cheapflights users on 5/6. 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 9/212:55 pm
YHZ
- STL
1 stop9h 29m
American Airlines
Wed 9/306:00 am
STL
- YHZ
1 stop6h 10m
American Airlines
Deal found 5/6![American Airlines logo]()
$336
This Kiwi.com deal was found by Cheapflights users on 5/10. 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.
Wed 7/812:30 am
YYC
- STL
1 stop16h 07m
Multiple Airlines
Mon 7/134:52 pm
STL
- YYC
1 stop29h 58m
Multiple Airlines
Deal found 5/10![Multiple Airlines logo]()
$337
This oojo deal was found by Cheapflights users on 5/10. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/211:30 pm
YHZ
- STL
2 stops22h 00m
WestJet
Wed 9/3010:45 am
STL
- YHZ
1 stop8h 55m
WestJet
Deal found 5/10![WestJet logo]()
$365
This Air Canada deal was found by Cheapflights users on 5/7. 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 8/257:15 am
YHZ
- STL
2 stops8h 47m
Air Canada
Wed 8/268:55 am
STL
- YHZ
2 stops9h 35m
Air Canada
Deal found 5/7![Air Canada logo]()
$385
This Alaska Airlines deal was found by Cheapflights users on 5/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/286:07 am
YYJ
- STL
2 stops8h 56m
Alaska Airlines
Mon 8/316:00 am
STL
- YYJ
1 stop8h 28m
Alaska Airlines
Deal found 5/10![Alaska Airlines logo]()
$619
This Delta deal was found by Cheapflights users on 5/7. 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 8/256:30 am
YHZ
- STL
1 stop7h 17m
Delta
Wed 8/2612:30 pm
STL
- YHZ
1 stop8h 48m
Delta
Deal found 5/7![Delta logo]()
$337
This American Airlines deal was found by Cheapflights users on 5/7. 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 6/811:57 pm
YVR
- STL
1 stop14h 36m
American Airlines
Tue 6/231:42 pm
STL
- YVR
1 stop11h 17m
American Airlines
Deal found 5/7![American Airlines logo]()
$347
This United Airlines deal was found by Cheapflights users on 5/10. 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 6/35:25 pm
YOW
- STL
1 stop7h 04m
United Airlines
Sat 6/612:55 pm
STL
- YOW
1 stop4h 53m
United Airlines
Deal found 5/10![United Airlines logo]()
$351
This United Airlines deal was found by Cheapflights users on 5/9. 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 8/273:35 pm
YVR
- STL
1 stop6h 05m
United Airlines
Mon 8/318:00 am
STL
- YVR
1 stop16h 25m
United Airlines
Deal found 5/9![United Airlines logo]()
$364
This Air Canada deal was found by Cheapflights users on 5/8. 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.
Thu 10/110:00 am
YOW
- STL
1 stop5h 00m
Air Canada
Tue 10/68:55 am
STL
- YOW
1 stop5h 15m
Air Canada
Deal found 5/8![Air Canada logo]()
$407
This Delta deal was found by Cheapflights users on 5/7. 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 8/276:00 am
YVR
- STL
1 stop8h 52m
Delta
Mon 8/312:15 pm
STL
- YVR
1 stop10h 12m
Delta
Deal found 5/7![Delta logo]()
$389
This Kiwi.com deal was found by Cheapflights users on 5/6. 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 6/812:30 am
YYC
- STL
1 stop16h 00m
Multiple Airlines
Fri 6/125:06 pm
STL
- YYC
1 stop18h 54m
Multiple Airlines
Deal found 5/6![Multiple Airlines logo]()
$440
This Justfly.com deal was found by Cheapflights users on 5/7. 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.
Fri 10/2311:00 am
YYC
- STL
1 stop8h 37m
WestJet
Sun 10/256:30 am
STL
- YYC
2 stops10h 50m
WestJet
Deal found 5/7![WestJet logo]()
$445
This American Airlines deal was found by Cheapflights users on 5/10. 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 7/104:15 pm
YYC
- STL
1 stop6h 43m
American Airlines
Tue 7/142:32 pm
STL
- YYC
1 stop10h 17m
American Airlines
Deal found 5/10![American Airlines logo]()
$409
This United Airlines deal was found by Cheapflights users on 5/6. 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 6/26:00 am
YOW
- STL
2 stops10h 46m
United Airlines
Wed 6/36:00 am
STL
- YOW
1 stop9h 38m
United Airlines
Deal found 5/6![United Airlines logo]()
$372
This Air Canada deal was found by Cheapflights users on 5/10. 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 6/32:40 pm
YOW
- STL
1 stop6h 45m
Air Canada
Sat 6/61:13 pm
STL
- YOW
2 stops11h 23m
Air Canada
Deal found 5/10![Air Canada logo]()
$410
This oojo deal was found by Cheapflights users on 5/11. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/197:00 am
YYC
- STL
2 stops8h 46m
WestJet
Sat 6/276:21 am
STL
- YYC
2 stops15h 19m
WestJet
Deal found 5/11![WestJet logo]()
$447
This United Airlines deal was found by Cheapflights users on 5/6. 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 6/206:25 am
YOW
- STL
1 stop6h 46m
United Airlines
Sat 6/276:00 am
STL
- YOW
2 stops16h 54m
United Airlines
Deal found 5/6![United Airlines logo]()
$372
This Air Canada deal was found by Cheapflights users on 5/6. 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.
Sat 5/2311:15 am
YOW
- STL
2 stops9h 08m
Air Canada
Sun 5/247:05 am
STL
- YOW
1 stop5h 00m
Air Canada
Deal found 5/6![Air Canada logo]()
$438
This Delta deal was found by Cheapflights users on 5/9. 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.
Fri 10/232:00 pm
YYC
- STL
1 stop9h 36m
Delta
Sun 10/256:30 am
STL
- YYC
1 stop7h 17m
Delta
Deal found 5/9![Delta logo]()
$439
This oojo deal was found by Cheapflights users on 5/8. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/197:00 am
YYC
- STL
2 stops8h 46m
WestJet
Fri 6/266:21 am
STL
- YYC
2 stops15h 04m
WestJet
Deal found 5/8![WestJet logo]()
$449
This eDestinos deal was found by Cheapflights users on 5/10. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/147:00 am
YYC
- STL
1 stop7h 58m
WestJet
Sun 10/182:18 pm
STL
- YYC
1 stop6h 47m
WestJet
Deal found 5/10![WestJet logo]()
$450
This Delta deal was found by Cheapflights users on 5/10. 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 5/266:00 am
YYZ
- STL
1 stop7h 23m
Delta
Fri 5/295:20 pm
STL
- YYZ
1 stop5h 38m
Delta
Deal found 5/10![Delta logo]()
$456
This Air Canada deal was found by Cheapflights users on 5/10. 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 5/296:30 pm
YUL
- STL
Nonstop2h 55m
Air Canada
Mon 6/12:15 pm
STL
- YUL
1 stop6h 35m
Air Canada
Deal found 5/10![Air Canada logo]()
$460
This Alaska Airlines deal was found by Cheapflights users on 5/6. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/226:07 am
YYJ
- STL
2 stops8h 56m
Alaska Airlines
Sat 9/266:00 am
STL
- YYJ
1 stop8h 26m
Alaska Airlines
Deal found 5/6![Alaska Airlines logo]()
$641
This Delta deal was found by Cheapflights users on 5/9. 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.
Fri 5/292:29 pm
YUL
- STL
1 stop7h 10m
Delta
Mon 6/15:20 pm
STL
- YUL
1 stop5h 37m
Delta
Deal found 5/9![Delta logo]()
$457
This United Airlines deal was found by Cheapflights users on 5/11. 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 6/1811:00 am
YYZ
- STL
1 stop4h 23m
United Airlines
Sun 6/215:29 pm
STL
- YYZ
1 stop5h 30m
United Airlines
Deal found 5/11![United Airlines logo]()
$457
This Air Canada deal was found by Cheapflights users on 5/6. 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.
Thu 7/912:55 pm
YYZ
- STL
Nonstop2h 07m
Air Canada
Sun 7/1212:10 pm
STL
- YYZ
1 stop6h 45m
Air Canada
Deal found 5/6![Air Canada logo]()
$465
Last-minute flights from Canada to St. LouisDiscover last-minute flight deals from Canada to St. Louis. Data last updated May 11, 2026 and is based on user searches.
Discover last-minute flight deals from Canada to St. Louis. Data last updated May 11, 2026 and is based on user searches.
This Air Canada deal was found by Cheapflights users on 5/6. 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.
Sat 5/232:40 pm
YOW
- STL
1 stop6h 45m
Air Canada
Sun 5/247:05 am
STL
- YOW
1 stop5h 00m
Air Canada
Deal found 5/6![Air Canada logo]()
$371
This WestJet deal was found by Cheapflights users on 5/9. 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/273:30 pm
YHZ
- STL
1 stop23h 40m
WestJet
Thu 5/286:04 pm
STL
- YHZ
1 stop25h 36m
WestJet
Deal found 5/9![WestJet logo]()
$397
This American Airlines deal was found by Cheapflights users on 5/6. 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.
Sat 5/307:20 am
YYZ
- STL
1 stop7h 46m
American Airlines
Tue 6/26:35 am
STL
- YYZ
1 stop10h 09m
American Airlines
Deal found 5/6![American Airlines logo]()
$402
This United Airlines deal was found by Cheapflights users on 5/6. 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 6/25:25 pm
YOW
- STL
1 stop4h 56m
United Airlines
Wed 6/36:00 am
STL
- YOW
1 stop14h 35m
United Airlines
Deal found 5/6![United Airlines logo]()
$372
This American Airlines deal was found by Cheapflights users on 5/6. 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 6/21:15 pm
YYZ
- STL
1 stop8h 15m
American Airlines
Wed 6/37:05 am
STL
- YYZ
1 stop9h 39m
American Airlines
Deal found 5/6![American Airlines logo]()
$372
This United Airlines deal was found by Cheapflights users on 5/10. 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 6/35:25 pm
YOW
- STL
1 stop7h 04m
United Airlines
Sat 6/612:55 pm
STL
- YOW
1 stop4h 53m
United Airlines
Deal found 5/10![United Airlines logo]()
$351
This Kiwi.com deal was found by Cheapflights users on 5/10. 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.
Fri 6/57:00 am
YYC
- STL
1 stop24h 55m
Multiple Airlines
Mon 6/85:27 pm
STL
- YYC
2 stops25h 43m
Multiple Airlines
Deal found 5/10![Multiple Airlines logo]()
$384
This American Airlines deal was found by Cheapflights users on 5/7. 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 6/811:57 pm
YVR
- STL
1 stop14h 36m
American Airlines
Tue 6/231:42 pm
STL
- YVR
1 stop11h 17m
American Airlines
Deal found 5/7![American Airlines logo]()
$347
This American Airlines deal was found by Cheapflights users on 5/6. 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 6/97:25 am
YYZ
- STL
1 stop7h 37m
American Airlines
Wed 6/107:03 am
STL
- YYZ
1 stop9h 41m
American Airlines
Deal found 5/6![American Airlines logo]()
$380
This Delta deal was found by Cheapflights users on 5/11. 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.
Fri 6/122:45 pm
YVR
- STL
1 stop6h 38m
Delta
Sat 6/205:00 pm
STL
- YVR
1 stop7h 35m
Delta
Deal found 5/11![Delta logo]()
$303
This Air Canada deal was found by Cheapflights users on 5/7. 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.
Sun 6/216:00 am
YHZ
- STL
1 stop8h 21m
Air Canada
Sun 6/282:15 pm
STL
- YHZ
1 stop9h 39m
Air Canada
Deal found 5/7![Air Canada logo]()
$378
This oojo deal was found by Cheapflights users on 5/7. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/218:30 am
YHZ
- STL
2 stops17h 26m
WestJet
Sun 6/286:30 am
STL
- YHZ
1 stop13h 15m
WestJet
Deal found 5/7![WestJet logo]()
$383
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 May 11, 2026.
Search for one-way flight options from Canada to St. Louis. Find affordable one-way fares based on user searches. Data last updated May 11, 2026.
This American Airlines deal was found by Cheapflights users on 5/10. 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 5/2811:45 am
YVR
- STL
1 stop10h 14m
American Airlines
Deal found 5/10![American Airlines logo]()
$161
This Delta deal was found by Cheapflights users on 5/8. 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.
Fri 8/286:00 am
YVR
- STL
1 stop8h 52m
Delta
Deal found 5/8![Delta logo]()
$163
This American Airlines deal was found by Cheapflights users on 5/7. 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 6/411:57 pm
YVR
- STL
1 stop6h 34m
American Airlines
Deal found 5/7![American Airlines logo]()
$168
This Kiwi.com deal was found by Cheapflights users on 5/10. 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 6/97:00 am
YYC
- STL
1 stop9h 30m
Multiple Airlines
Deal found 5/10![Multiple Airlines logo]()
$170
This Air Canada deal was found by Cheapflights users on 5/6. 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 9/251:25 am
YVR
- STL
1 stop10h 35m
Air Canada
Deal found 5/6![Air Canada logo]()
$176
This American Airlines deal was found by Cheapflights users on 5/6. 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 5/2011:52 am
YVR
- STL
1 stop18h 59m
American Airlines
Deal found 5/6![American Airlines logo]()
$178
This United Airlines deal was found by Cheapflights users on 5/6. 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 6/411:35 pm
YVR
- STL
1 stop10h 36m
United Airlines
Deal found 5/6![United Airlines logo]()
$179
This Kiwi.com deal was found by Cheapflights users on 5/10. 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.
Fri 6/127:00 am
YYC
- STL
1 stop24h 52m
Multiple Airlines
Deal found 5/10![Multiple Airlines logo]()
$180
This Kiwi.com deal was found by Cheapflights users on 5/10. 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.
Sat 8/2212:30 am
YYC
- STL
1 stop16h 00m
Multiple Airlines
Deal found 5/10![Multiple Airlines logo]()
$182
This Kiwi.com deal was found by Cheapflights users on 5/7. 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 6/26:30 am
YYZ
- STL
2 stops27h 25m
Multiple Airlines
Deal found 5/7![Multiple Airlines logo]()
$184
This United Airlines deal was found by Cheapflights users on 5/7. 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 6/183:35 pm
YVR
- STL
1 stop6h 22m
United Airlines
Deal found 5/7![United Airlines logo]()
$186
This Kiwi.com deal was found by Cheapflights users on 5/10. 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 6/166:30 am
YYZ
- STL
2 stops27h 22m
Multiple Airlines
Deal found 5/10![Multiple Airlines logo]()
$188
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 May 11, 2026.
Round-trip from | $312 (United Airlines) |
|---|---|
One-way from | $161 (American Airlines) |
Popular in | March |
Cheapest in | June |
Average price | $558 |
Good round-trip deal | $404 or less |
Good one-way deal | $270 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 2,558,603 searches. Data last updated May 11, 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
VancouverSt. Louis
YVR - STL
YVRSTL
Vancouver Intl
Fri 6/12
2:45 pm-11:23 pm
1 stop6h 38m
Lambert-St Louis
Sat 6/20
5:00 pm-10:35 pm
1 stop7h 35m
$303
VancouverSt. Louis
YVR - STL
YVRSTL
Vancouver Intl
Tue 9/22
3:35 pm-11:50 pm
1 stop6h 15m
Lambert-St Louis
Sat 9/26
7:00 am-8:49 pm
1 stop15h 49m
$312
HalifaxSt. Louis
YHZ - STL
YHZSTL
Halifax Intl
Mon 9/21
2:55 pm-10:24 pm
1 stop9h 29m
Lambert-St Louis
Wed 9/30
6:00 am-2:10 pm
1 stop6h 10m
$336
CalgarySt. Louis
YYC - STL
YYCSTL
Calgary
Wed 7/8
12:30 am-5:37 pm
1 stop16h 07m
Lambert-St Louis
Mon 7/13
4:52 pm-9:50 pm
1 stop29h 58m
$337
HalifaxSt. Louis
YHZ - STL
YHZSTL
Halifax Intl
Tue 8/25
6:30 am-11:47 am
1 stop7h 17m
Lambert-St Louis
Wed 8/26
12:30 pm-11:18 pm
1 stop8h 48m
$337
VancouverSt. Louis
YVR - STL
YVRSTL
Vancouver Intl
Mon 6/8
11:57 pm-4:33 pm
1 stop14h 36m
Lambert-St Louis
Tue 6/23
1:42 pm-10:59 pm
1 stop11h 17m
$347
OttawaSt. Louis
YOW - STL
YOWSTL
Ottawa
Wed 6/3
5:25 pm-11:29 pm
1 stop7h 04m
Lambert-St Louis
Sat 6/6
12:55 pm-6:48 pm
1 stop4h 53m
$351
VancouverSt. Louis
YVR - STL
YVRSTL
Vancouver Intl
Thu 8/27
3:35 pm-11:40 pm
1 stop6h 05m
Lambert-St Louis
Mon 8/31
8:00 am-10:25 pm
1 stop16h 25m
$364
HalifaxSt. Louis
YHZ - STL
YHZSTL
Halifax Intl
Mon 9/21
1:30 pm-9:30 am
2 stops22h 00m
Lambert-St Louis
Wed 9/30
10:45 am-9:40 pm
1 stop8h 55m
$365
OttawaSt. Louis
YOW - STL
YOWSTL
Ottawa
Tue 6/2
6:00 am-3:46 pm
2 stops10h 46m
Lambert-St Louis
Wed 6/3
6:00 am-4:38 pm
1 stop9h 38m
$372
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.
YVR-STL
YHZ-STL
YYC-STL
YYJ-STL
YOW-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
YVR-STL
YHZ-STL
YYC-STL
YYJ-STL
How far ahead should I book a flight from Canada to St. Louis?
Booking 62 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.
What is the cheapest month to book a flight from Canada to St. Louis?
Currently, August is the cheapest month in which you can book a flight from Canada to St. Louis (average of $154). Flying from Canada to St. Louis in September is currently the most expensive (average of $329). 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 May 11, 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 morning, which can drop the price by up to 31% 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 May 11, 2026.
The most flights from CA0 to STL are scheduled on a Monday (4 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (2 on average).
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 May 11, 2026.
Read reviews from past customers who have flown Alaska Airlines,United Airlines, andAmerican Airlines 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.
Comfort
7.8
Overall
7.9
Food
7.0
Entertainment
7.0
Boarding
8.1
Crew
8.5
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Comfort
7.8
Overall
7.9
Food
7.0
Entertainment
7.0
Boarding
8.1
Crew
8.5
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Comfort
7.8
Overall
7.9
Food
7.0
Entertainment
7.0
Boarding
8.1
Crew
8.5
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Comfort
7.8
Overall
7.9
Food
7.0
Entertainment
7.0
Boarding
8.1
Crew
8.5
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Comfort
7.8
Overall
7.9
Food
7.0
Entertainment
7.0
Boarding
8.1
Crew
8.5
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
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 locationsEdwardsville
O'Fallon
Fenton
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Wentzville
Glencoe
Chesterfield
Alton
Farmington
Festus
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Canada and St. Louis flights
Browse other Canada and St. Louis flight options. Last updated on May 11, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 May 11, 2026.
Canada to St. Louis flights
Consider these flights traveling from Canada to St. Louis.
Top 4 airlines flying from Canada to St. Louis
Discover the top 4 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 2,558,603 searches. Data last updated May 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$256 | Average$513 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$292 | Average$414 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$344 | Average$443 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$347 | Average$440 | FlexibilityNo cancel fee | On-time71% |