$138+ Cheap flights from Missouri to Niagara Falls, ON, Canada
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 6/12. Fares are subject to change and may not be available on all flights or dates of travel.
STL — YYZ
Jun 5 — Jun 121
Round-trip
1 adult, Economy
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Cheapest flights from Missouri to Niagara FallsExplore the most affordable flight options available from Missouri to Niagara Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 6, 2026.
Explore the most affordable flight options available from Missouri to Niagara Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 6, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/1. 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 5/275:27 pm
STL
- YYZ
2 stops19h 38m
Multiple Airlines
Wed 6/39:50 am
YYZ
- STL
1 stop15h 07m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$353
This American Airlines deal was found by Cheapflights users on 5/1. 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 5/272:36 pm
STL
- YYZ
1 stop7h 48m
American Airlines
Wed 6/311:39 am
YYZ
- STL
1 stop8h 41m
American Airlines
Deal found 5/1![American Airlines logo]()
$375
This American Airlines deal was found by Cheapflights users on 5/2. 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 6/177:03 am
STL
- YYZ
1 stop9h 41m
American Airlines
Wed 6/241:15 pm
YYZ
- STL
1 stop12h 01m
American Airlines
Deal found 5/2![American Airlines logo]()
$376
This Kiwi.com deal was found by Cheapflights users on 5/1. 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 6/65:27 pm
STL
- YYZ
2 stops19h 38m
Multiple Airlines
Wed 6/109:50 am
YYZ
- STL
1 stop14h 59m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$385
This Kiwi.com deal was found by Cheapflights users on 5/2. 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 6/284:17 pm
STL
- YYZ
1 stop26h 48m
Multiple Airlines
Sun 7/54:45 pm
YYZ
- STL
2 stops26h 51m
Multiple Airlines
Deal found 5/2![Multiple Airlines logo]()
$389
This Kiwi.com deal was found by Cheapflights users on 5/3. 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 6/26:33 pm
STL
- YYZ
2 stops21h 22m
Multiple Airlines
Mon 6/87:45 am
YYZ
- STL
1 stop17h 12m
Multiple Airlines
Deal found 5/3![Multiple Airlines logo]()
$396
This Kiwi.com deal was found by Cheapflights users on 5/3. 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 6/15:27 pm
STL
- YYZ
2 stops22h 28m
Multiple Airlines
Mon 6/87:45 am
YYZ
- STL
1 stop17h 12m
Multiple Airlines
Deal found 5/3![Multiple Airlines logo]()
$397
This Kiwi.com deal was found by Cheapflights users on 5/4. 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 6/34:19 pm
STL
- YYZ
1 stop23h 26m
Multiple Airlines
Wed 6/104:45 pm
YYZ
- STL
2 stops26h 51m
Multiple Airlines
Deal found 5/4![Multiple Airlines logo]()
$399
This Kiwi.com deal was found by Cheapflights users on 5/3. 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 6/34:19 pm
STL
- YYZ
1 stop23h 26m
Multiple Airlines
Mon 6/810:25 pm
YYZ
- STL
2 stops21h 58m
Multiple Airlines
Deal found 5/3![Multiple Airlines logo]()
$402
This American Airlines deal was found by Cheapflights users on 5/2. 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 5/272:36 pm
STL
- YYZ
1 stop7h 48m
American Airlines
Sat 5/301:15 pm
YYZ
- STL
1 stop8h 15m
American Airlines
Deal found 5/2![American Airlines logo]()
$403
This Kiwi.com deal was found by Cheapflights users on 4/30. 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 5/305:27 pm
STL
- YYZ
2 stops17h 33m
Multiple Airlines
Wed 6/39:50 am
YYZ
- STL
1 stop15h 07m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$404
This Kiwi.com deal was found by Cheapflights users on 5/1. 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 6/231:45 pm
MCI
- YYZ
2 stops31h 10m
Multiple Airlines
Tue 7/77:45 am
YYZ
- MCI
1 stop26h 10m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$441
Best flights from Missouri to Niagara FallsDiscover carefully curated flight deals from Missouri to Niagara Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 6, 2026.
Discover carefully curated flight deals from Missouri to Niagara Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 6, 2026.
This Air Canada deal was found by Cheapflights users on 5/1. 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 6/78:40 am
STL
- YYZ
Nonstop1h 58m
Air Canada
Tue 6/92:00 pm
YYZ
- STL
1 stop7h 25m
Air Canada
Deal found 5/1![Air Canada logo]()
$523
This Delta deal was found by Cheapflights users on 5/1. 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 5/235:36 pm
STL
- YYZ
1 stop4h 38m
Delta
Tue 5/267:22 pm
YYZ
- STL
1 stop4h 59m
Delta
Deal found 5/1![Delta logo]()
$540
This United Airlines deal was found by Cheapflights users on 5/3. 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 5/301:13 pm
STL
- YYZ
1 stop9h 05m
United Airlines
Wed 6/34:00 pm
YYZ
- STL
1 stop8h 29m
United Airlines
Deal found 5/3![United Airlines logo]()
$547
This Kiwi.com deal was found by Cheapflights users on 5/5. 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 8/104:09 pm
STL
- YYZ
1 stop26h 56m
Multiple Airlines
Fri 8/1411:40 am
YYZ
- STL
1 stop5h 37m
Multiple Airlines
Deal found 5/5![Multiple Airlines logo]()
$561
This American Airlines deal was found by Cheapflights users on 5/4. 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 6/186:47 pm
COU
- YYZ
1 stop15h 11m
American Airlines
Thu 6/256:24 pm
YYZ
- COU
1 stop16h 42m
American Airlines
Deal found 5/4![American Airlines logo]()
$563
This Alaska Airlines deal was found by Cheapflights users on 5/2. 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 5/265:52 pm
MCI
- YYZ
2 stops20h 53m
Alaska Airlines
Tue 6/24:55 pm
YYZ
- MCI
2 stops25h 02m
Alaska Airlines
Deal found 5/2![Alaska Airlines logo]()
$877
This Delta deal was found by Cheapflights users on 5/2. 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.
Sun 5/1710:19 am
STL
- YYZ
1 stop6h 02m
Delta
Fri 5/227:45 am
YYZ
- STL
1 stop9h 30m
Delta
Deal found 5/2![Delta logo]()
$572
This Air Canada deal was found by Cheapflights users on 5/2. 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 8/132:40 pm
STL
- YYZ
Nonstop1h 57m
Air Canada
Sun 8/1612:00 pm
YYZ
- STL
1 stop7h 42m
Air Canada
Deal found 5/2![Air Canada logo]()
$577
This United Airlines deal was found by Cheapflights users on 5/2. 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 7/107:05 pm
STL
- YYZ
1 stop3h 54m
United Airlines
Mon 7/2710:15 am
YYZ
- STL
1 stop6h 31m
United Airlines
Deal found 5/2![United Airlines logo]()
$579
This American Airlines deal was found by Cheapflights users on 5/3. 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 6/2010:34 am
SGF
- YYZ
1 stop11h 49m
American Airlines
Thu 6/257:25 am
YYZ
- SGF
1 stop12h 44m
American Airlines
Deal found 5/3![American Airlines logo]()
$592
This Kiwi.com deal was found by Cheapflights users on 5/5. 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 5/201:59 pm
STL
- YYZ
2 stops9h 26m
Multiple Airlines
Sat 5/306:12 pm
YYZ
- STL
1 stop3h 57m
Multiple Airlines
Deal found 5/5![Multiple Airlines logo]()
$595
This Delta deal was found by Cheapflights users on 5/5. 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.
Wed 5/208:53 am
STL
- YYZ
1 stop8h 38m
Delta
Sat 5/304:10 pm
YYZ
- STL
1 stop5h 59m
Delta
Deal found 5/5![Delta logo]()
$573
This Air Canada deal was found by Cheapflights users on 5/5. 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.
Mon 8/108:55 am
STL
- YYZ
Nonstop1h 57m
Air Canada
Fri 8/1412:00 pm
YYZ
- STL
1 stop7h 42m
Air Canada
Deal found 5/5![Air Canada logo]()
$578
This American Airlines deal was found by Cheapflights users on 5/5. 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 10/309:38 am
STL
- YYZ
1 stop6h 27m
American Airlines
Mon 11/27:14 pm
YYZ
- STL
1 stop5h 51m
American Airlines
Deal found 5/5![American Airlines logo]()
$594
This United Airlines deal was found by Cheapflights users on 5/3. 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 6/63:25 pm
COU
- YYZ
1 stop7h 34m
United Airlines
Wed 6/109:00 pm
YYZ
- COU
1 stop14h 13m
United Airlines
Deal found 5/3![United Airlines logo]()
$666
This American Airlines deal was found by Cheapflights users on 5/2. 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 5/267:42 pm
MCI
- YYZ
1 stop14h 17m
American Airlines
Tue 6/26:26 pm
YYZ
- MCI
1 stop15h 09m
American Airlines
Deal found 5/2![American Airlines logo]()
$630
This United Airlines deal was found by Cheapflights users on 5/1. 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 5/271:03 pm
MCI
- YYZ
1 stop9h 56m
United Airlines
Sun 5/3111:00 am
YYZ
- MCI
1 stop22h 42m
United Airlines
Deal found 5/1![United Airlines logo]()
$710
This Delta deal was found by Cheapflights users on 5/1. 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 6/236:25 am
MCI
- YYZ
2 stops10h 44m
Delta
Thu 7/96:00 am
YYZ
- MCI
1 stop17h 21m
Delta
Deal found 5/1![Delta logo]()
$720
This Alaska Airlines deal was found by Cheapflights users on 5/5. 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 10/136:12 pm
MCI
- YYZ
2 stops20h 33m
Alaska Airlines
Tue 10/204:55 pm
YYZ
- MCI
2 stops25h 23m
Alaska Airlines
Deal found 5/5![Alaska Airlines logo]()
$897
This Delta deal was found by Cheapflights users on 5/1. 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.
Wed 6/2410:36 am
MCI
- YYZ
2 stops12h 04m
Delta
Wed 7/86:04 am
YYZ
- MCI
2 stops11h 51m
Delta
Deal found 5/1![Delta logo]()
$734
This United Airlines deal was found by Cheapflights users on 5/4. 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 5/308:54 am
JLN
- YYZ
1 stop7h 06m
United Airlines
Wed 6/31:00 pm
YYZ
- JLN
1 stop25h 22m
United Airlines
Deal found 5/4![United Airlines logo]()
$782
This Delta deal was found by Cheapflights users on 5/1. 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 6/2310:35 am
MCI
- YYZ
1 stop9h 44m
Delta
Fri 7/106:10 am
YYZ
- MCI
1 stop4h 34m
Delta
Deal found 5/1![Delta logo]()
$751
This United Airlines deal was found by Cheapflights users on 5/2. 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 5/2110:53 am
COU
- YYZ
2 stops18h 33m
United Airlines
Fri 5/229:00 pm
YYZ
- COU
1 stop14h 18m
United Airlines
Deal found 5/2![United Airlines logo]()
$799
This American Airlines deal was found by Cheapflights users on 5/4. 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 5/196:00 am
MCI
- YYZ
1 stop4h 54m
American Airlines
Thu 5/216:00 am
YYZ
- MCI
1 stop6h 26m
American Airlines
Deal found 5/4![American Airlines logo]()
$916
This United Airlines deal was found by Cheapflights users on 5/4. 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 6/1810:48 am
COU
- YYZ
2 stops18h 30m
United Airlines
Thu 6/252:00 pm
YYZ
- COU
1 stop21h 13m
United Airlines
Deal found 5/4![United Airlines logo]()
$811
This Delta deal was found by Cheapflights users on 5/3. 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.
Mon 6/13:22 pm
SGF
- YYZ
1 stop7h 36m
Delta
Tue 6/97:55 am
YYZ
- SGF
2 stops11h 17m
Delta
Deal found 5/3![Delta logo]()
$821
This United Airlines deal was found by Cheapflights users on 5/5. 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 6/203:07 pm
SGF
- YYZ
1 stop4h 37m
United Airlines
Sat 6/278:45 am
YYZ
- SGF
1 stop6h 47m
United Airlines
Deal found 5/5![United Airlines logo]()
$831
This Delta deal was found by Cheapflights users on 5/3. 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 6/186:00 am
SGF
- YYZ
1 stop5h 25m
Delta
Thu 6/256:00 am
YYZ
- SGF
2 stops13h 12m
Delta
Deal found 5/3![Delta logo]()
$856
This United Airlines deal was found by Cheapflights users on 5/4. 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 5/296:00 am
MCI
- YYZ
1 stop25h 14m
United Airlines
Tue 6/21:55 pm
YYZ
- MCI
1 stop8h 52m
United Airlines
Deal found 5/4![United Airlines logo]()
$843
This Delta deal was found by Cheapflights users on 5/3. 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 6/206:00 am
SGF
- YYZ
2 stops9h 15m
Delta
Thu 6/256:00 am
YYZ
- SGF
2 stops13h 12m
Delta
Deal found 5/3![Delta logo]()
$878
Last-minute flights from Missouri to Niagara FallsDiscover last-minute flight deals from Missouri to Niagara Falls. Data last updated May 6, 2026 and is based on user searches.
Discover last-minute flight deals from Missouri to Niagara Falls. Data last updated May 6, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 5/1. 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 5/275:27 pm
STL
- YYZ
2 stops19h 38m
Multiple Airlines
Wed 6/39:50 am
YYZ
- STL
1 stop15h 07m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$353
This American Airlines deal was found by Cheapflights users on 5/1. 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 5/272:36 pm
STL
- YYZ
1 stop7h 48m
American Airlines
Wed 6/311:39 am
YYZ
- STL
1 stop8h 41m
American Airlines
Deal found 5/1![American Airlines logo]()
$375
This American Airlines deal was found by Cheapflights users on 5/2. 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 5/272:36 pm
STL
- YYZ
1 stop7h 48m
American Airlines
Sat 5/301:15 pm
YYZ
- STL
1 stop8h 15m
American Airlines
Deal found 5/2![American Airlines logo]()
$403
This Kiwi.com deal was found by Cheapflights users on 4/30. 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 5/305:27 pm
STL
- YYZ
2 stops17h 33m
Multiple Airlines
Wed 6/39:50 am
YYZ
- STL
1 stop15h 07m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$404
This Kiwi.com deal was found by Cheapflights users on 5/3. 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 6/15:27 pm
STL
- YYZ
2 stops22h 28m
Multiple Airlines
Mon 6/87:45 am
YYZ
- STL
1 stop17h 12m
Multiple Airlines
Deal found 5/3![Multiple Airlines logo]()
$397
This Kiwi.com deal was found by Cheapflights users on 5/3. 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 6/26:33 pm
STL
- YYZ
2 stops21h 22m
Multiple Airlines
Mon 6/87:45 am
YYZ
- STL
1 stop17h 12m
Multiple Airlines
Deal found 5/3![Multiple Airlines logo]()
$396
This Kiwi.com deal was found by Cheapflights users on 5/4. 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 6/34:19 pm
STL
- YYZ
1 stop23h 26m
Multiple Airlines
Wed 6/104:45 pm
YYZ
- STL
2 stops26h 51m
Multiple Airlines
Deal found 5/4![Multiple Airlines logo]()
$399
This Kiwi.com deal was found by Cheapflights users on 5/3. 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 6/34:19 pm
STL
- YYZ
1 stop23h 26m
Multiple Airlines
Mon 6/810:25 pm
YYZ
- STL
2 stops21h 58m
Multiple Airlines
Deal found 5/3![Multiple Airlines logo]()
$402
This Kiwi.com deal was found by Cheapflights users on 5/1. 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 6/65:27 pm
STL
- YYZ
2 stops19h 38m
Multiple Airlines
Wed 6/109:50 am
YYZ
- STL
1 stop14h 59m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$385
This American Airlines deal was found by Cheapflights users on 5/2. 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 6/177:03 am
STL
- YYZ
1 stop9h 41m
American Airlines
Wed 6/241:15 pm
YYZ
- STL
1 stop12h 01m
American Airlines
Deal found 5/2![American Airlines logo]()
$376
This Kiwi.com deal was found by Cheapflights users on 5/1. 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 6/231:45 pm
MCI
- YYZ
2 stops31h 10m
Multiple Airlines
Tue 7/77:45 am
YYZ
- MCI
1 stop26h 10m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$441
This Kiwi.com deal was found by Cheapflights users on 5/2. 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 6/284:17 pm
STL
- YYZ
1 stop26h 48m
Multiple Airlines
Sun 7/54:45 pm
YYZ
- STL
2 stops26h 51m
Multiple Airlines
Deal found 5/2![Multiple Airlines logo]()
$389
One-way flights from Missouri to Niagara FallsSearch for one-way flight options from Missouri to Niagara Falls. Find affordable one-way fares based on user searches. Data last updated May 6, 2026.
Search for one-way flight options from Missouri to Niagara Falls. Find affordable one-way fares based on user searches. Data last updated May 6, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/2. 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 6/125:06 pm
STL
- YYZ
2 stops19h 59m
Multiple Airlines
Deal found 5/2![Multiple Airlines logo]()
$138
This Kiwi.com deal was found by Cheapflights users on 5/2. 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 6/166:31 pm
STL
- YYZ
2 stops42h 34m
Multiple Airlines
Deal found 5/2![Multiple Airlines logo]()
$143
This Kiwi.com deal was found by Cheapflights users on 5/2. 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 6/175:06 pm
STL
- YYZ
2 stops19h 59m
Multiple Airlines
Deal found 5/2![Multiple Airlines logo]()
$144
This Kiwi.com deal was found by Cheapflights users on 5/2. 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 6/144:17 pm
STL
- YYZ
1 stop23h 28m
Multiple Airlines
Deal found 5/2![Multiple Airlines logo]()
$154
This American Airlines deal was found by Cheapflights users on 5/3. 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 6/26:35 am
STL
- YYZ
1 stop10h 09m
American Airlines
Deal found 5/3![American Airlines logo]()
$158
This American Airlines deal was found by Cheapflights users on 5/2. 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 6/169:08 am
STL
- YYZ
1 stop7h 36m
American Airlines
Deal found 5/2![American Airlines logo]()
$162
This Kiwi.com deal was found by Cheapflights users on 5/3. 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 6/26:33 pm
STL
- YYZ
3 stops24h 11m
Multiple Airlines
Deal found 5/3![Multiple Airlines logo]()
$168
This Kiwi.com deal was found by Cheapflights users on 5/1. 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 6/284:17 pm
STL
- YYZ
1 stop23h 28m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$169
This Kiwi.com deal was found by Cheapflights users on 5/2. 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 6/136:16 pm
MCI
- YYZ
3 stops50h 39m
Multiple Airlines
Deal found 5/2![Multiple Airlines logo]()
$187
This Kiwi.com deal was found by Cheapflights users on 5/3. 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 7/206:16 pm
MCI
- YYZ
2 stops24h 49m
Multiple Airlines
Deal found 5/3![Multiple Airlines logo]()
$200
This Kiwi.com deal was found by Cheapflights users on 5/5. 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 6/156:16 pm
MCI
- YYZ
2 stops26h 46m
Multiple Airlines
Deal found 5/5![Multiple Airlines logo]()
$204
This Kiwi.com deal was found by Cheapflights users on 5/1. 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 6/291:45 pm
MCI
- YYZ
2 stops33h 25m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$207
Find flight deals from Missouri to Niagara Falls
Keep the following information in mind while searching for Missouri to Niagara Falls flight deals. Data was last updated May 6, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $353 (Kiwi.com) |
One-way from | $138 (Kiwi.com) |
Popular in | November |
Cheapest in | June |
Average price | $488 |
Cheapflights Fare Finder
Customize your flight search to find flights from Missouri to Niagara Falls 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 6, 2026.
Use the filters below to find and compare flights from Missouri to Niagara Falls that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
St. LouisToronto
STL - YYZ
STLYYZ
Lambert-St Louis
Sun 6/7
8:40 am-11:38 am
Nonstop1h 58m
Toronto Pearson Intl
Tue 6/9
2:00 pm-8:25 pm
1 stop7h 25m
$523
St. LouisToronto
STL - YYZ
STLYYZ
Lambert-St Louis
Sat 5/23
5:36 pm-11:14 pm
1 stop4h 38m
Toronto Pearson Intl
Tue 5/26
7:22 pm-11:21 pm
1 stop4h 59m
$540
St. LouisToronto
STL - YYZ
STLYYZ
Lambert-St Louis
Sat 5/30
1:13 pm-11:18 pm
1 stop9h 05m
Toronto Pearson Intl
Wed 6/3
4:00 pm-11:29 pm
1 stop8h 29m
$547
St. LouisToronto
STL - YYZ
STLYYZ
Lambert-St Louis
Mon 8/10
4:09 pm-8:05 pm
1 stop26h 56m
Toronto Pearson Intl
Fri 8/14
11:40 am-4:17 pm
1 stop5h 37m
$561
ColumbiaToronto
COU - YYZ
COUYYZ
Columbia Regional
Thu 6/18
6:47 pm-10:58 am
1 stop15h 11m
Toronto Pearson Intl
Thu 6/25
6:24 pm-10:06 am
1 stop16h 42m
$563
St. LouisToronto
STL - YYZ
STLYYZ
Lambert-St Louis
Sun 5/17
10:19 am-5:21 pm
1 stop6h 02m
Toronto Pearson Intl
Fri 5/22
7:45 am-4:15 pm
1 stop9h 30m
$572
St. LouisToronto
STL - YYZ
STLYYZ
Lambert-St Louis
Wed 5/20
8:53 am-6:31 pm
1 stop8h 38m
Toronto Pearson Intl
Sat 5/30
4:10 pm-9:09 pm
1 stop5h 59m
$573
St. LouisToronto
STL - YYZ
STLYYZ
Lambert-St Louis
Thu 8/13
2:40 pm-5:37 pm
Nonstop1h 57m
Toronto Pearson Intl
Sun 8/16
12:00 pm-6:42 pm
1 stop7h 42m
$577
St. LouisToronto
STL - YYZ
STLYYZ
Lambert-St Louis
Mon 8/10
8:55 am-11:52 am
Nonstop1h 57m
Toronto Pearson Intl
Fri 8/14
12:00 pm-6:42 pm
1 stop7h 42m
$578
St. LouisToronto
STL - YYZ
STLYYZ
Lambert-St Louis
Fri 7/10
7:05 pm-11:59 pm
1 stop3h 54m
Toronto Pearson Intl
Mon 7/27
10:15 am-3:46 pm
1 stop6h 31m
$579
Showing 1-10 of 55 resultsSorted by cheapest first
Best time to book a flight from Missouri to Niagara Falls
Have a flexible travel schedule? Discover the best time to fly to Niagara Falls from Missouri with our price prediction graph.
STL-YYZ
MCI-YYZ
SGF-YYZ
COU-YYZ
JLN-YYZ
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 Missouri to Niagara Falls
USMO-NI4
STL-YYZ
MCI-YYZ
SGF-YYZ
COU-YYZ
What is the cheapest time of day to fly from MO to NI4?
Find hourly flight availability from Missouri to Niagara Falls. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 6, 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Missouri to Niagara Falls as you normally would.
Weekly flight availability from Missouri to Niagara Falls
Explore weekly flight availability from Missouri to Niagara Falls. 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 6, 2026.
The most flights from USMO to NI4 are scheduled on a Monday (4 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (2 on average).
How much does it cost to fly round-trip from Missouri to Niagara Falls?
Related info for your journey
Find useful and relevant information for your journey from Missouri to Niagara Falls. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for Missouri to Niagara Falls
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Niagara Falls by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Missouri to Niagara Falls by cabin class
Find flights from Missouri to Niagara Falls, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Missouri and Niagara Falls flights
Browse other Missouri and Niagara Falls flight options. Last updated on May 6, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Missouri to Niagara Falls flights
Consider these flights traveling from Missouri to Niagara Falls.
Top 5 airlines flying from Missouri to Niagara Falls
Discover the top 5 airlines that operate flights from Missouri to Niagara Falls. 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 6, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$218 | Average$650 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$236 | Average$596 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$260 | Average$750 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$270 | Average$610 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$591 | Average$684 | FlexibilityNo cancel fee | On-time60% |