Cheapflights Tip: The best prices from Niagara Falls to Lambert-St Louis are usually found in January or February, booked 80 days in advance, depart on a Sunday or Wednesday and return on a Thursday
Find flight deals from Niagara Falls to St. Louis
Keep the following information in mind while searching for Niagara Falls to St. Louis flight deals. Data was last updated 21 October 2026.
Popular in
April
Cheapest in
January
Average price
C$ 730
Highest demand for flights based on searches. 7% potential increase in price (C$ 82 potential increase over avg. RT price).
Everything you need to know about your flight from Niagara Falls to St. Louis
What is the cheapest time of day to fly from NI4 to STL?
Find hourly flight availability from Niagara Falls to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 21 October 2026.
It’s typically best to fly out from Niagara Falls to St. Louis in the afternoon. Doing so could potentially save you 36% on the flight price compared to flying in the evening, which is usually more expensive.
Reviews of airlines servicing St. Louis
Get insights into the airlines that provide service to St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Louis. Reviews last updated 21 October 2026.
Get a feel of what it's like to fly with United Airlines and Air Canada from Niagara Falls to St. Louis by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
Related info for your journey
Find useful and relevant information for your journey from Niagara Falls to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
What airport do you fly into for flights to St. Louis from Niagara Falls?
For a flight from Niagara Falls to St. Louis, you will be flying into Lambert-St Louis. Lambert-St Louis (STL) is just 20.4 km from the centre of the city. Lambert-St Louis is the only St. Louis airport and it handles 3 inbound flights from Niagara Falls per day. 2 airlines have flights to Lambert-St Louis from Niagara Falls on a regular basis.
What are the most reliable airlines from Niagara Falls to St. Louis?
Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Niagara Falls to St. Louis on time: Air Canada (73%), Jazz (73%), United Airlines (73%).
What are the cheapest flights from Niagara Falls to St. Louis?
On average you can expect to pay C$ 814 for a flight from Niagara Falls to St. Louis. The cheapest flight overall is C$ 581 while the most popular route, (Toronto Pearson Intl - Lambert-St Louis) is currently priced at C$ 547.
Can I find deals for flights from Niagara Falls to St. Louis that include hotel bookings?
Yes. In addition to deals on Niagara Falls to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Niagara Falls to St. Louis?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Niagara Falls to St. Louis.
Can I find deals for business class flights from Niagara Falls to St. Louis?
Yes. Cheapflights offers flight deals from Niagara Falls to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
Explore flights to St. Louis departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 21 October 2026.
Top 2 airlines flying from Niagara Falls to St. Louis
Discover the top 2 airlines that operate flights from Niagara Falls to St. Louis. 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 7,457,451 searches. Data last updated 21 October 2026.
Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Niagara Falls to St. Louis?
Deals for Niagara Falls to St. Louis flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.
Why should you use Cheapflights to find cheap flight tickets from Niagara Falls to St. Louis?
Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Niagara Falls to St. Louis for you. Better yet — we are completely free to use.
Can Cheapflights find flights from Niagara Falls to St. Louis with no change fees?
Certainly. Search results for flights to St. Louis from Niagara Falls shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.
Can Cheapflights notify me if prices for flights from Niagara Falls to St. Louis become cheaper?
Of course! You can now track prices for flights from Niagara Falls to St. Louis and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.
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