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Niagara Falls

$126+ 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 3/2. Fares are subject to change and may not be available on all flights or dates of travel.
STL — YYZ
Mar 6 — Mar 131
Fri 3/6
Fri 3/13
1 adult, Economy
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Cheap flight deals from Missouri to Niagara Falls

Cheapest flights from Missouri to Niagara Falls
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 February 4, 2026.

This Kiwi.com deal was found by Cheapflights users on 2/1. 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.
Thu 4/95:45 am
MCI
-
YYZ
2 stops16h 35m
Multiple Airlines
Mon 4/133:40 pm
YYZ
-
MCI
1 stop20h 49m
Multiple Airlines
Deal found 2/1$267
This Kiwi.com deal was found by Cheapflights users on 2/1. 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 4/1412:24 pm
MCI
-
YYZ
1 stop24h 41m
Multiple Airlines
Thu 4/237:40 am
YYZ
-
MCI
1 stop28h 27m
Multiple Airlines
Deal found 2/1$300
This Kiwi.com deal was found by Cheapflights users on 2/2. 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.
Mon 3/23:49 pm
STL
-
YYZ
1 stop21h 31m
Multiple Airlines
Mon 3/93:40 pm
YYZ
-
STL
2 stops32h 39m
Multiple Airlines
Deal found 2/2$307
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 3/1111:32 am
STL
-
YYZ
2 stops22h 54m
Multiple Airlines
Tue 3/177:10 am
YYZ
-
STL
1 stop17h 09m
Multiple Airlines
Deal found 2/3$311
This Kiwi.com deal was found by Cheapflights users on 1/31. 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 3/211:26 am
MCI
-
YYZ
1 stop10h 54m
Multiple Airlines
Tue 3/37:10 am
YYZ
-
MCI
1 stop9h 19m
Multiple Airlines
Deal found 1/31$311
This Kiwi.com deal was found by Cheapflights users on 2/1. 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.
Fri 4/1012:24 pm
MCI
-
YYZ
1 stop9h 56m
Multiple Airlines
Mon 4/133:40 pm
YYZ
-
MCI
2 stops33h 13m
Multiple Airlines
Deal found 2/1$312
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 3/33:49 pm
STL
-
YYZ
1 stop21h 31m
Multiple Airlines
Tue 3/107:10 am
YYZ
-
STL
1 stop17h 09m
Multiple Airlines
Deal found 2/3$315
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 3/1111:32 am
STL
-
YYZ
2 stops22h 54m
Multiple Airlines
Thu 3/198:35 pm
YYZ
-
STL
1 stop15h 44m
Multiple Airlines
Deal found 2/3$324
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 3/1111:32 am
STL
-
YYZ
2 stops22h 54m
Multiple Airlines
Wed 3/189:35 am
YYZ
-
STL
1 stop27h 40m
Multiple Airlines
Deal found 2/3$328
This Kiwi.com deal was found by Cheapflights users on 2/1. 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 3/94:51 pm
STL
-
YYZ
1 stop20h 29m
Multiple Airlines
Sun 3/1510:15 pm
YYZ
-
STL
2 stops39h 00m
Multiple Airlines
Deal found 2/1$333
This Kiwi.com deal was found by Cheapflights users on 2/4. 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.
Mon 3/168:10 pm
STL
-
YYZ
1 stop17h 10m
Multiple Airlines
Wed 3/189:35 am
YYZ
-
STL
1 stop27h 40m
Multiple Airlines
Deal found 2/4$336
This Kiwi.com deal was found by Cheapflights users on 2/1. 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 3/168:10 pm
STL
-
YYZ
1 stop17h 10m
Multiple Airlines
Mon 3/233:40 pm
YYZ
-
STL
2 stops19h 52m
Multiple Airlines
Deal found 2/1$344

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 February 4, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$307
(Kiwi.com)

One-way from

$126
(Trip.com)

Popular in

November

Cheapest in

June

Average price

$493
Provider with most accurate pricing for Lambert-St Louis-Toronto (YTO) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Toronto (YTO) flights.
Search Deals
From Missouri to Niagara Falls
Search Deals
One-way flight from Missouri to Niagara Falls
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($58 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

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 February 4, 2026.
Use the filters below to find and compare flights from Missouri to Niagara Falls that are best for you.

Fly from

Missouri

Fly to

Niagara Falls

Route

Depart

Return

Price

Kansas CityToronto

MCI - YYZ

MCIYYZ

Kansas City

Thu 4/9

5:45 am-11:20 pm

2 stops16h 35m

Toronto Pearson Intl

Mon 4/13

3:40 pm-11:29 am

1 stop20h 49m

$267

Kansas CityToronto

MCI - YYZ

MCIYYZ

Kansas City

Mon 3/2

11:26 am-11:20 pm

1 stop10h 54m

Toronto Pearson Intl

Tue 3/3

7:10 am-3:29 pm

1 stop9h 19m

$311

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Mon 3/2

3:49 pm-2:20 pm

1 stop21h 31m

Toronto Pearson Intl

Mon 3/9

7:55 pm-7:11 pm

1 stop24h 16m

$317

Kansas CityToronto

MCI - YYZ

MCIYYZ

Kansas City

Fri 4/10

12:24 pm-11:20 pm

1 stop9h 56m

Toronto Pearson Intl

Mon 4/13

8:00 pm-5:09 pm

1 stop22h 09m

$322

Kansas CityToronto

MCI - YYZ

MCIYYZ

Kansas City

Tue 4/14

6:04 pm-2:05 pm

2 stops19h 01m

Toronto Pearson Intl

Thu 4/23

8:30 pm-11:07 am

1 stop15h 37m

$325

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Mon 3/9

4:51 pm-2:20 pm

1 stop20h 29m

Toronto Pearson Intl

Sun 3/15

10:15 pm-12:15 pm

2 stops39h 00m

$333

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Mon 3/16

8:10 pm-2:20 pm

1 stop17h 10m

Toronto Pearson Intl

Mon 3/23

3:40 pm-10:32 am

2 stops19h 52m

$344

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Sun 4/26

11:21 am-11:46 am

2 stops23h 25m

Toronto Pearson Intl

Thu 4/30

7:15 am-11:19 pm

1 stop17h 04m

$346

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Fri 3/6

1:09 pm-11:35 am

2 stops21h 26m

Toronto Pearson Intl

Tue 3/10

7:10 am-11:19 pm

1 stop17h 09m

$360

Kansas CityToronto

MCI - YYZ

MCIYYZ

Kansas City

Wed 4/1

12:24 pm-7:55 pm

1 stop30h 31m

Toronto Pearson Intl

Tue 4/14

7:15 am-11:53 pm

1 stop17h 38m

$374

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/31

Showing 1-10 of 52 results
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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.
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

What is the cheapest month to book a flight from Missouri to Niagara Falls?

Currently, June is the cheapest month in which you can book a flight from Missouri to Niagara Falls (average of $180). Flying from Missouri to Niagara Falls in January is currently the most expensive (average of $781). 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 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 February 4, 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 February 4, 2026.

The most flights from USMO to NI4 are scheduled on a Monday (2 on average). You will have fewer flight options on Monday, 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.

  • How long is the flight from Missouri to Niagara Falls?

    Airlines like American Airlines and United Airlines fly from Missouri to Niagara Falls in about 9h. The time it takes to get you to your destination can typically vary by up to 5h 49m. Airlines will cover a distance of 847 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the most popular routes from Missouri to Niagara Falls?

    Most travelers choose Lambert-St Louis - Toronto Pearson Intl, Kansas City - Toronto Pearson Intl or Joplin - Toronto Pearson Intl when deciding on the best route from Missouri to Niagara Falls.

  • What are the most reliable airlines from Missouri to Niagara Falls?

    Before booking your flight to Niagara Falls from Missouri, check out the most reliable airlines to get you to your destination on time: Air Canada (58%), Jazz (58%), United Airlines( 58%).

  • What are the cheapest flights from Missouri to Niagara Falls?

    Looking for the cheapest flight from Missouri to Niagara Falls? While on average our users pay $590, our data indicates the cheapest price to be $255. The most popular route (Lambert-St Louis - Toronto Pearson Intl), is priced around $315.

  • Can I find deals for flights from Missouri to Niagara Falls that include hotel bookings?

    Yes. In addition to deals on Missouri to Niagara Falls flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Missouri to Niagara Falls?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Missouri to Niagara Falls.

  • Can I find deals for business class flights from Missouri to Niagara Falls?

    Yes. Cheapflights offers flight deals from Missouri to Niagara Falls by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Missouri to Niagara Falls?

    Currently, June is the cheapest month in which you can book a flight from Missouri to Niagara Falls (average of $180). Flying from Missouri to Niagara Falls in January is currently the most expensive (average of $781). 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.

See more FAQs

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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.
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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 February 4, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$199Average$550FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$214Average$571FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$270Average$603FlexibilityNo cancel feeOn-time71%
DeltaCheapest$423Average$722FlexibilityNo cancel feeOn-timeN/A
WestJetCheapest$653Average$748FlexibilityNo cancel feeOn-time60%

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