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Niagara Falls

$98+ 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 12/3. Fares are subject to change and may not be available on all flights or dates of travel.
STL — YYZ
Dec 6 — Dec 131
Sat 12/6
Sat 12/13
1 adult, Economy
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Cheap 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 November 6, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$263
(Kiwi.com)

One-way from

$98
(Mytrip)

Popular in

March

Cheapest in

January

Average price

$556
Provider with most accurate pricing for Lambert-St Louis-Toronto (YTO) flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Toronto (YTO) flights.
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From Missouri to Niagara Falls
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One-way flight from Missouri to Niagara Falls
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High demand for flights, 9% potential price rise
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Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Find 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 November 6, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/6. 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.
Fri 12/1210:42 amSTL - YYZ
2 stops26h 58mMultiple Airlines
Mon 12/157:15 amYYZ - STL
1 stop16h 18mMultiple Airlines
Deal found 11/6$263
This American Airlines deal was found by Cheapflights users on 11/4. 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 12/45:15 amSTL - YYZ
1 stop9h 48mAmerican Airlines
Wed 12/106:00 amYYZ - STL
1 stop11h 50mAmerican Airlines
Deal found 11/4$279
This Kiwi.com deal was found by Cheapflights users on 11/4. 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.
Thu 12/42:47 pmSTL - YYZ
1 stop22h 53mMultiple Airlines
Wed 12/105:15 pmYYZ - STL
1 stop30h 18mMultiple Airlines
Deal found 11/4$288
This American Airlines deal was found by Cheapflights users on 11/4. 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.
Wed 12/246:00 amSTL - YYZ
2 stops9h 39mAmerican Airlines
Tue 12/306:00 amYYZ - STL
1 stop8h 23mAmerican Airlines
Deal found 11/4$295
This Kiwi.com deal was found by Cheapflights users on 11/5. 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 12/14:13 pmSTL - YYZ
1 stop24h 40mMultiple Airlines
Thu 12/117:15 amYYZ - STL
1 stop16h 18mMultiple Airlines
Deal found 11/5$307
This Kiwi.com deal was found by Cheapflights users on 11/6. 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.
Tue 12/163:30 pmSTL - YYZ
1 stop7h 41mMultiple Airlines
Thu 12/188:00 pmYYZ - STL
1 stop26h 25mMultiple Airlines
Deal found 11/6$317
This Kiwi.com deal was found by Cheapflights users on 11/4. 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.
Fri 12/127:01 pmMCI - YYZ
1 stop27h 19mMultiple Airlines
Sun 1/1111:15 amYYZ - MCI
2 stops23h 56mMultiple Airlines
Deal found 11/4$317
This Kiwi.com deal was found by Cheapflights users on 11/4. 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.
Thu 12/112:47 pmSTL - YYZ
1 stop19h 56mMultiple Airlines
Sun 12/148:00 pmYYZ - STL
1 stop13h 59mMultiple Airlines
Deal found 11/4$319
This Kiwi.com deal was found by Cheapflights users on 11/5. 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 12/2411:33 amMCI - YYZ
2 stops10h 47mMultiple Airlines
Tue 12/307:10 amYYZ - MCI
1 stop16h 49mMultiple Airlines
Deal found 11/5$329
This Kiwi.com deal was found by Cheapflights users on 11/4. 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.
Sun 12/74:35 pmMCI - YYZ
2 stops26h 38mMultiple Airlines
Thu 12/118:30 pmYYZ - MCI
1 stop22h 26mMultiple Airlines
Deal found 11/4$336
This Kiwi.com deal was found by Cheapflights users on 11/6. 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 11/2010:53 amSTL - YYZ
1 stop23h 50mMultiple Airlines
Sun 11/237:10 amYYZ - STL
1 stop17h 47mMultiple Airlines
Deal found 11/6$343
This American Airlines deal was found by Cheapflights users on 11/4. 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.
Sat 11/296:42 amCOU - YYZ
1 stop13h 47mAmerican Airlines
Wed 12/31:10 pmYYZ - COU
1 stop9h 50mAmerican Airlines
Deal found 11/4$357

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 November 6, 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

Fri 12/12

10:42 am-2:40 pm

2 stops26h 58m

Toronto Pearson Intl

Mon 12/15

7:15 am-10:33 pm

1 stop16h 18m

$263

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Wed 1/7

5:11 pm-2:16 pm

1 stop20h 05m

Toronto Pearson Intl

Sun 1/11

8:00 pm-10:02 am

2 stops15h 02m

$294

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Tue 12/16

3:30 pm-12:11 am

1 stop7h 41m

Toronto Pearson Intl

Thu 12/18

8:00 pm-9:25 pm

1 stop26h 25m

$317

Kansas CityToronto

MCI - YYZ

MCIYYZ

Kansas City

Fri 12/12

7:01 pm-11:20 pm

1 stop27h 19m

Toronto Pearson Intl

Sun 1/11

11:15 am-10:11 am

2 stops23h 56m

$317

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Mon 12/1

4:13 pm-5:53 pm

1 stop24h 40m

Toronto Pearson Intl

Thu 12/11

7:55 pm-10:14 am

2 stops15h 19m

$346

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Fri 11/21

3:53 pm-8:38 am

2 stops15h 45m

Toronto Pearson Intl

Sun 11/23

7:10 am-11:57 pm

1 stop17h 47m

$347

Kansas CityToronto

MCI - YYZ

MCIYYZ

Kansas City

Thu 1/29

7:00 am-5:41 pm

2 stops33h 41m

Toronto Pearson Intl

Sat 2/7

8:30 pm-10:31 am

1 stop15h 01m

$356

ColumbiaToronto

COU - YYZ

COUYYZ

Columbia Regional

Sat 11/29

6:42 am-9:29 pm

1 stop13h 47m

Toronto Pearson Intl

Wed 12/3

1:10 pm-10:00 pm

1 stop9h 50m

$357

SpringfieldToronto

SGF - YYZ

SGFYYZ

Springfield-Branson

Thu 12/4

7:00 am-5:44 pm

1 stop9h 44m

Toronto Pearson Intl

Sun 12/7

6:00 am-6:42 pm

1 stop13h 42m

$367

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Wed 1/14

6:00 am-9:23 pm

1 stop14h 23m

Toronto Pearson Intl

Sat 1/17

5:15 pm-9:24 am

1 stop17h 09m

$377

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/6

Showing 1-10 of 45 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 February is currently the most expensive (average of $364). 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 November 6, 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.

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 13h 47m. The time it takes to get you to your destination can typically vary by up to 1h 35m. Airlines will cover a distance of 734 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 (95%), Jazz (95%), United Airlines( 95%).

  • 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 $1,501, our data indicates the cheapest price to be $141. The most popular route (Lambert-St Louis - Toronto Pearson Intl), is priced around $288.

  • 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 February is currently the most expensive (average of $364). 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 November 6, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$214Average$607FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$221Average$609FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$270Average$621FlexibilityNo cancel feeOn-time71%
WestJetCheapest$525Average$748FlexibilityNo cancel feeOn-time60%
DeltaCheapest$567Average$722FlexibilityNo cancel feeOn-timeN/A

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