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Niagara Falls

$103+ 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 1/21. Fares are subject to change and may not be available on all flights or dates of travel.
STL — YYZ
Jan 7 — Jan 141
Wed 1/7
Wed 1/14
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 December 8, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/7. 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.
Sun 12/143:30 pmSTL - YYZ
1 stop19h 13mMultiple Airlines
Tue 12/167:10 amYYZ - STL
1 stop16h 23mMultiple Airlines
Deal found 12/7$325
This Kiwi.com deal was found by Cheapflights users on 12/5. 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 12/153:30 pmSTL - YYZ
1 stop21h 50mMultiple Airlines
Wed 12/177:10 amYYZ - STL
1 stop16h 23mMultiple Airlines
Deal found 12/5$382
This Kiwi.com deal was found by Cheapflights users on 12/6. 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.
Thu 12/2510:42 amSTL - YYZ
2 stops27h 35mMultiple Airlines
Wed 12/317:40 amYYZ - STL
1 stop28h 16mMultiple Airlines
Deal found 12/6$388
This Kiwi.com deal was found by Cheapflights users on 12/7. 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 12/2310:48 amSTL - YYZ
2 stops26h 52mMultiple Airlines
Wed 1/77:15 amYYZ - STL
1 stop16h 18mMultiple Airlines
Deal found 12/7$409
This Kiwi.com deal was found by Cheapflights users on 12/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2010:10 pmSTL - YYZ
2 stops39h 10mMultiple Airlines
Fri 1/167:10 amYYZ - STL
1 stop16h 24mMultiple Airlines
Deal found 12/8$426
This Kiwi.com deal was found by Cheapflights users on 12/6. 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.
Wed 12/246:15 pmMCI - YYZ
1 stop28h 05mMultiple Airlines
Sun 12/2811:15 amYYZ - MCI
1 stop30h 55mMultiple Airlines
Deal found 12/6$431
This Kiwi.com deal was found by Cheapflights users on 12/7. 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.
Fri 12/123:30 pmSTL - YYZ
1 stop21h 50mMultiple Airlines
Sun 12/147:10 amYYZ - STL
1 stop26h 49mMultiple Airlines
Deal found 12/7$459
This Kiwi.com deal was found by Cheapflights users on 12/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/236:15 pmMCI - YYZ
1 stop19h 38mMultiple Airlines
Wed 12/317:15 amYYZ - MCI
2 stops16h 44mMultiple Airlines
Deal found 12/8$493
This Kiwi.com deal was found by Cheapflights users on 12/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/246:15 pmMCI - YYZ
1 stop20h 02mMultiple Airlines
Thu 1/17:10 amYYZ - MCI
1 stop16h 49mMultiple Airlines
Deal found 12/8$505
This Kiwi.com deal was found by Cheapflights users on 12/7. 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.
Sun 12/216:15 pmMCI - YYZ
1 stop26h 57mMultiple Airlines
Fri 12/267:40 amYYZ - MCI
1 stop10h 30mMultiple Airlines
Deal found 12/7$513
This Kiwi.com deal was found by Cheapflights users on 12/5. 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.
Thu 12/253:47 pmMCI - YYZ
1 stop18h 56mMultiple Airlines
Sat 1/38:20 pmYYZ - MCI
2 stops38h 48mMultiple Airlines
Deal found 12/5$533
This American Airlines deal was found by Cheapflights users on 12/7. 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.
Wed 12/247:35 amCOU - YYZ
1 stop27h 57mAmerican Airlines
Sun 12/2811:38 amYYZ - COU
1 stop8h 34mAmerican Airlines
Deal found 12/7$602

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 December 8, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$257
(Kiwi.com)

One-way from

$103
(Trip.com)

Popular in

November

Cheapest in

April

Average price

$492
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. 14% potential increase in price ($83 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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 December 8, 2025.
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

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Tue 1/13

5:11 pm-11:20 pm

2 stops29h 09m

Toronto Pearson Intl

Mon 1/26

7:10 am-11:33 pm

1 stop17h 23m

$257

Kansas CityToronto

MCI - YYZ

MCIYYZ

Kansas City

Wed 1/28

5:04 pm-2:20 pm

1 stop20h 16m

Toronto Pearson Intl

Sun 2/1

3:40 pm-10:31 am

1 stop19h 51m

$276

Kansas CityToronto

MCI - YYZ

MCIYYZ

Kansas City

Thu 1/29

5:04 pm-2:20 pm

1 stop20h 16m

Toronto Pearson Intl

Wed 2/4

3:40 pm-10:31 am

1 stop19h 51m

$285

Kansas CityToronto

MCI - YYZ

MCIYYZ

Kansas City

Wed 1/28

5:04 pm-2:20 pm

1 stop20h 16m

Toronto Pearson Intl

Wed 2/4

3:40 pm-10:31 am

1 stop19h 51m

$288

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Wed 1/14

8:32 pm-2:20 pm

2 stops40h 48m

Toronto Pearson Intl

Mon 1/26

7:10 am-11:33 pm

1 stop17h 23m

$295

Kansas CityToronto

MCI - YYZ

MCIYYZ

Kansas City

Mon 1/19

11:26 am-7:02 pm

1 stop30h 36m

Toronto Pearson Intl

Mon 1/26

3:40 pm-4:09 pm

2 stops25h 29m

$297

Kansas CityToronto

MCI - YYZ

MCIYYZ

Kansas City

Sun 2/1

8:59 am-9:19 pm

1 stop11h 20m

Toronto Pearson Intl

Wed 2/4

3:40 pm-10:31 am

1 stop19h 51m

$306

Kansas CityToronto

MCI - YYZ

MCIYYZ

Kansas City

Fri 1/30

11:26 am-10:12 pm

1 stop9h 46m

Toronto Pearson Intl

Sun 2/1

3:40 pm-10:31 am

1 stop19h 51m

$307

Kansas CityToronto

MCI - YYZ

MCIYYZ

Kansas City

Thu 1/15

11:26 am-2:40 pm

1 stop26h 14m

Toronto Pearson Intl

Mon 1/19

3:40 pm-4:09 pm

2 stops25h 29m

$314

Kansas CityToronto

MCI - YYZ

MCIYYZ

Kansas City

Sat 1/31

7:00 am-6:20 am

1 stop22h 20m

Toronto Pearson Intl

Mon 2/9

3:40 pm-4:09 pm

2 stops25h 29m

$320

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/7

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 $179). Flying from Missouri to Niagara Falls in October is currently the most expensive (average of $516). 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 December 8, 2025.

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 December 8, 2025.

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).

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 10h 25m. The time it takes to get you to your destination can typically vary by up to 3h 46m. Airlines will cover a distance of 653 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 Springfield-Branson - 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 (94%), Jazz (94%), United Airlines( 94%).

  • 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 $1,293, our data indicates the cheapest price to be $209. The most popular route (Lambert-St Louis - Toronto Pearson Intl), is priced around $257.

  • 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 $179). Flying from Missouri to Niagara Falls in October is currently the most expensive (average of $516). 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 December 8, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$199Average$594FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$220Average$611FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$270Average$609FlexibilityNo cancel feeOn-time71%
WestJetCheapest$525Average$748FlexibilityNo cancel feeOn-time60%
DeltaCheapest$567Average$722FlexibilityNo cancel feeOn-timeN/A

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