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Niagara Falls

Cheap flights from St. Louis (STL) to Niagara Falls, ON, Canada

STL — YYZ
Dec 5 — Dec 121
Sat 12/5
Sat 12/12
1 adult, Economy
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Find flight deals from St. Louis to Niagara Falls

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Popular in

January

Cheapest in

November

Average price

$461
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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Highest demand for flights based on searches. 1% potential increase in price ($7 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($22 potential savings vs. average RT price).
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Average for round-trip flights in November 2026
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Cheapflights Insights

Everything you need to know about your flight from St. Louis to Niagara Falls

What is the cheapest time of day to fly from STL to NI4?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from St. Louis to Niagara Falls as you normally would.

Reviews of airlines servicing Niagara Falls

Read reviews from past customers who have flown United Airlines,Air Canada, andAmerican Airlines from St. Louis to Niagara Falls. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.3
Good
10,463 reviews

Comfort

7.3

Overall

7.3

Food

6.7

Entertainment

7.1

Boarding

7.7

Crew

8.1

Reviews

1 / 20
6.0
Good

Miz,Oct 2024

EWR - YYZ

I booked on United but it was really Air Canada. It was very confusing when I went to the airport. The ride to NY was very turbulent and shaky. The ride back was better. It would be nicer with more leg room and to get rid of the tilting the seat back thing. Fine for an hour flight but any longer would have been not great. Please put subtitles on the programs so we don;t have t use headphones if we forget them.
United Airlines
7.3
Good
10,463 reviews
United Airlines
7.3
Good
10,463 reviews

Comfort

7.3

Overall

7.3

Food

6.7

Entertainment

7.1

Boarding

7.7

Crew

8.1

Reviews

1 / 20
6.0
Good

Miz,Oct 2024

EWR - YYZ

I booked on United but it was really Air Canada. It was very confusing when I went to the airport. The ride to NY was very turbulent and shaky. The ride back was better. It would be nicer with more leg room and to get rid of the tilting the seat back thing. Fine for an hour flight but any longer would have been not great. Please put subtitles on the programs so we don;t have t use headphones if we forget them.
Air Canada
7.1
Good
11,860 reviews
United Airlines
7.3
Good
10,463 reviews

Comfort

7.3

Overall

7.3

Food

6.7

Entertainment

7.1

Boarding

7.7

Crew

8.1

Reviews

1 / 20
6.0
Good

Miz,Oct 2024

EWR - YYZ

I booked on United but it was really Air Canada. It was very confusing when I went to the airport. The ride to NY was very turbulent and shaky. The ride back was better. It would be nicer with more leg room and to get rid of the tilting the seat back thing. Fine for an hour flight but any longer would have been not great. Please put subtitles on the programs so we don;t have t use headphones if we forget them.
American Airlines
7.0
Good
12,228 reviews
United Airlines
7.3
Good
10,463 reviews

Comfort

7.3

Overall

7.3

Food

6.7

Entertainment

7.1

Boarding

7.7

Crew

8.1

Reviews

1 / 20
6.0
Good

Miz,Oct 2024

EWR - YYZ

I booked on United but it was really Air Canada. It was very confusing when I went to the airport. The ride to NY was very turbulent and shaky. The ride back was better. It would be nicer with more leg room and to get rid of the tilting the seat back thing. Fine for an hour flight but any longer would have been not great. Please put subtitles on the programs so we don;t have t use headphones if we forget them.

Related info for your journey

  • What airport do you fly from for flights from St. Louis to Niagara Falls?

    If you book a flight to Niagara Falls from St. Louis, you will be flying from Lambert-St Louis, which is the city’s only airport. Lambert-St Louis (STL) is located 12.7 mi from the center of St. Louis. There are 2 flights from Lambert-St Louis to Niagara Falls per day from 3 different airlines.

  • What are the most reliable airlines from St. Louis to Niagara Falls?

    The top 3 most reliable airlines when flying from St. Louis to Niagara Falls are United Airlines (84%), Air Canada (79%) and Jazz (79%).

  • What are the cheapest flights from St. Louis to Niagara Falls?

    Looking at all options, your cheapest flight can be booked for $331. While the most popular route (Lambert-St Louis - Toronto Pearson Intl) can be booked for $384 on average, our data indicates $2,014 when flying from St. Louis to Niagara Falls.

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

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

  • How can I find direct flights from St. Louis to Niagara Falls?

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

  • Can I find deals for business class flights from St. Louis to Niagara Falls?

    Yes. Cheapflights offers flight deals from St. Louis 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.

See more FAQs

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Top 3 airlines flying from St. Louis to Niagara Falls

AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$253Average$632FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$272Average$605FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$453Average$634FlexibilityNo cancel feeOn-time71%

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