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Niagara Falls

$131+ 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 2/4. Fares are subject to change and may not be available on all flights or dates of travel.
STL — YYZ
Jan 9 — Jan 161
Fri 1/9
Fri 1/16
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 10, 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.
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 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.
Tue 12/235:30 amSTL - YYZ
1 stop9h 00mAmerican Airlines
Wed 1/711:30 amYYZ - STL
1 stop7h 44mAmerican Airlines
Deal found 12/7$487
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/246:35 pmSTL - YYZ
1 stop4h 24mUnited Airlines
Fri 12/262:45 pmYYZ - STL
1 stop5h 37mUnited 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.
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 American Airlines deal was found by Cheapflights users on 12/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/235:30 amSTL - YYZ
1 stop9h 00mAmerican Airlines
Thu 12/256:00 amYYZ - STL
1 stop14h 30mAmerican Airlines
Deal found 12/9$494
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/242:04 pmSTL - YYZ
1 stop20h 05mAmerican Airlines
Sun 12/2810:56 amYYZ - STL
1 stop11h 49mAmerican Airlines
Deal found 12/8$497
This United Airlines deal was found by Cheapflights users on 12/9. 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 12/258:05 amSTL - YYZ
2 stops9h 52mUnited Airlines
Tue 12/305:30 pmYYZ - STL
1 stop5h 13mUnited Airlines
Deal found 12/9$503
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 12/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/121:16 pmSTL - YYZ
2 stops21h 27mMultiple Airlines
Sun 12/148:00 pmYYZ - STL
1 stop27h 33mMultiple Airlines
Deal found 12/9$512
This Kiwi.com deal was found by Cheapflights users on 12/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/137:01 pmMCI - YYZ
1 stop27h 19mMultiple Airlines
Mon 12/157:10 amYYZ - MCI
1 stop17h 05mMultiple Airlines
Deal found 12/9$523
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/235:02 pmSTL - YYZ
1 stop5h 07mAir Canada
Wed 1/72:00 pmYYZ - STL
Nonstop2h 29mAir Canada
Deal found 12/7$553

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 10, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$283
(Kiwi.com)

One-way from

$131
(Kiwi.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).
Search Deals
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 10, 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

Sun 1/18

10:09 pm-6:20 am

1 stop31h 11m

Toronto Pearson Intl

Wed 1/21

7:15 am-11:33 pm

1 stop17h 18m

$283

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Fri 1/23

5:42 pm-2:20 pm

1 stop19h 38m

Toronto Pearson Intl

Fri 1/30

7:15 am-11:33 pm

2 stops17h 18m

$315

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Tue 1/13

5:11 pm-12:11 am

1 stop30h 00m

Toronto Pearson Intl

Mon 1/26

7:10 am-11:33 pm

1 stop17h 23m

$339

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Sat 2/14

6:35 pm-10:56 am

1 stop15h 21m

Toronto Pearson Intl

Sat 2/21

11:38 am-6:02 pm

1 stop7h 24m

$350

Kansas CityToronto

MCI - YYZ

MCIYYZ

Kansas City

Wed 1/21

7:00 am-7:55 pm

1 stop11h 55m

Toronto Pearson Intl

Sat 1/31

11:30 pm-10:31 am

2 stops36h 01m

$351

Kansas CityToronto

MCI - YYZ

MCIYYZ

Kansas City

Mon 1/5

11:38 am-11:35 am

2 stops22h 57m

Toronto Pearson Intl

Fri 1/9

7:55 pm-11:33 pm

1 stop28h 38m

$390

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Sat 2/7

12:12 pm-11:35 am

2 stops22h 23m

Toronto Pearson Intl

Mon 2/9

5:15 pm-11:33 pm

1 stop7h 18m

$425

SpringfieldToronto

SGF - YYZ

SGFYYZ

Springfield-Branson

Sat 1/24

5:00 pm-12:34 pm

1 stop18h 34m

Toronto Pearson Intl

Sat 1/31

7:04 pm-11:49 am

1 stop17h 45m

$426

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Fri 1/23

4:05 pm-7:06 pm

Nonstop2h 01m

Toronto Pearson Intl

Fri 1/30

2:50 pm-8:58 pm

1 stop7h 08m

$451

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Sat 2/14

4:05 pm-7:06 pm

Nonstop2h 01m

Toronto Pearson Intl

Sat 2/21

2:00 pm-3:29 pm

Nonstop2h 29m

$468

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/8

Showing 1-10 of 46 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 10, 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.

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, Alaska Airlines, and United Airlines fly from Missouri to Niagara Falls in about 12h 36m. The time it takes to get you to your destination can typically vary by up to 11h 14m. 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 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 $283.

  • 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 10, 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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