How long is the flight from Niagara Falls to St. Louis?

A quick flight from Niagara Falls to St. Louis can take about 2h 03m. American Airlines provides one of the quickest options available for as low as C$ 529. There are 1051 km between Niagara Falls and St. Louis. This flight may include one or multiple stops.

What is the cheapest day to fly from Niagara Falls to St. Louis?

Travelers seeking maximum savings on their Niagara Falls to St. Louis flight should consider departing on Thursday mornings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in St. Louis ranges from 56.0 - 119.0 mm per month. May is typically the wettest month, when rainfall can reach 119.0 mm. February is typically the driest time to visit St. Louis when rainfall is around 56.0 mm.

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 0.0 C).

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

On average you can expect to pay C$ 1,162 for a flight from Niagara Falls to St. Louis. The cheapest flight overall is C$ 435 while the most popular route, (Toronto Pearson Intl - Lambert-St Louis) is currently priced at C$ 392.

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 (80%), Jazz (80%), United Airlines (80%).

What are the most popular airlines that fly from Niagara Falls to St. Louis?

American Airlines, Air Canada and Delta are the most popular airlines when flying from Niagara Falls to St. Louis.

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 4 inbound flights from Niagara Falls per day. 5 airlines have flights to Lambert-St Louis from Niagara Falls on a regular basis.

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.

C$ 210+ Flights from Niagara Falls to St. Louis

Cheapflights Tip: The best prices from Niagara Falls to Lambert-St Louis are usually found in June or May, booked 85 days in advance, depart on a Thursday or Tuesday and return on a Tuesday

Cheap flight deals from Niagara Falls to St. Louis

Round-trip from	C$ 396
One-way from	C$ 210
Popular in	February
Cheapest in	June
Average price	C$ 722

30/10-6/11
3 total stops
72h 30m total
Niagara Falls to St. Louis

Search Deals

29/10
2 total stops
26h 27m total
Niagara Falls to St. Louis

Search Deals

Highest demand for flights based on searches. 4% potential increase in price (C$ 45 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 0% potential price decrease (C$ 9 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in September 2025

Search Deals

Find flight deals from Niagara Falls to St. Louis

Cheapest flights from Niagara Falls to St. Louis
Explore the most affordable flight options available from Niagara Falls to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 September 2025.

Thu 30/109:45 a.m.YYZ - STL

1 stop29h 12mMultiple Airlines

Thu 6/116:22 p.m.STL - YYZ

2 stops43h 18mMultiple Airlines

Deal found 14/9C$ 396

Mon 20/1010:40 a.m.YYZ - STL

2 stops23h 27mMultiple Airlines

Thu 23/1010:57 a.m.STL - YYZ

1 stop26h 08mMultiple Airlines

Deal found 15/9C$ 410

Mon 29/94:00 p.m.YYZ - STL

2 stops27h 36mMultiple Airlines

Thu 2/1010:35 a.m.STL - YYZ

1 stop9h 20mMultiple Airlines

Deal found 15/9C$ 448

Thu 4/125:15 p.m.YYZ - STL

1 stop16h 30mMultiple Airlines

Sun 7/129:50 p.m.STL - YYZ

2 stops20h 46mMultiple Airlines

Deal found 16/9C$ 460

Thu 13/117:55 p.m.YYZ - STL

1 stop19h 02mMultiple Airlines

Sun 16/112:42 p.m.STL - YYZ

1 stop14h 38mMultiple Airlines

Deal found 13/9C$ 461

Fri 5/1212:50 p.m.YYZ - STL

1 stop10h 56mMultiple Airlines

Sun 7/129:50 p.m.STL - YYZ

2 stops20h 46mMultiple Airlines

Deal found 14/9C$ 463

Sat 4/106:30 a.m.YYZ - STL

1 stop28h 32mMultiple Airlines

Mon 6/109:32 p.m.STL - YYZ

1 stop15h 20mMultiple Airlines

Deal found 15/9C$ 466

Mon 13/104:00 p.m.YYZ - STL

2 stops42h 07mMultiple Airlines

Mon 20/106:05 p.m.STL - YYZ

1 stop27h 35mMultiple Airlines

Deal found 15/9C$ 470

Sun 12/1010:25 p.m.YYZ - STL

2 stops35h 42mMultiple Airlines

Sun 19/1010:57 a.m.STL - YYZ

1 stop26h 08mMultiple Airlines

Deal found 16/9C$ 471

Best flights from Niagara Falls to St. Louis
Discover carefully curated flight deals from Niagara Falls to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 16 September 2025.

Thu 13/117:55 p.m.YYZ - STL

1 stop19h 02mMultiple Airlines

Sun 16/117:45 p.m.STL - YYZ

2 stops15h 01mMultiple Airlines

Deal found 13/9C$ 503

Wed 15/101:15 p.m.YYZ - STL

1 stop11h 39mAmerican Airlines

Tue 21/106:00 a.m.STL - YYZ

1 stop7h 30mAmerican Airlines

Deal found 16/9C$ 521

Sat 25/102:15 p.m.YYZ - STL

Nonstop2h 03mAir Canada

Sun 2/114:05 p.m.STL - YYZ

Nonstop2h 01mAir Canada

Deal found 16/9C$ 529

Fri 5/1210:58 a.m.YYZ - STL

1 stop11h 49mAmerican Airlines

Sun 7/126:00 a.m.STL - YYZ

1 stop3h 56mAmerican Airlines

Deal found 14/9C$ 546

Sat 4/106:30 a.m.YYZ - STL

1 stop28h 32mMultiple Airlines

Sun 12/106:05 p.m.STL - YYZ

1 stop28h 50mMultiple Airlines

Deal found 15/9C$ 546

Thu 2/102:15 p.m.YYZ - STL

Nonstop2h 03mAir Canada

Sun 5/106:30 a.m.STL - YYZ

1 stop4h 19mAir Canada

Deal found 16/9C$ 571

Sat 25/103:10 p.m.YYZ - STL

1 stop7h 56mAmerican Airlines

Sun 2/117:30 a.m.STL - YYZ

1 stop4h 02mAmerican Airlines

Deal found 14/9C$ 551

Tue 4/114:45 p.m.YYZ - STL

1 stop23h 33mMultiple Airlines

Fri 7/112:12 p.m.STL - YYZ

1 stop23h 08mMultiple Airlines

Deal found 16/9C$ 564

Thu 30/101:15 p.m.YYZ - STL

1 stop8h 11mAmerican Airlines

Thu 6/1111:33 a.m.STL - YYZ

1 stop9h 11mAmerican Airlines

Deal found 15/9C$ 559

Tue 7/101:15 p.m.YYZ - STL

1 stop8h 11mAmerican Airlines

Mon 13/105:30 a.m.STL - YYZ

1 stop8h 29mAmerican Airlines

Deal found 16/9C$ 559

Tue 7/101:15 p.m.YYZ - STL

1 stop8h 11mAmerican Airlines

Tue 14/1010:16 a.m.STL - YYZ

1 stop7h 19mAmerican Airlines

Deal found 16/9C$ 559

Direct flights from Niagara Falls to St. Louis
Explore direct flight options from Niagara Falls to St. Louis based on user searches, and compare prices and availability for your desired travel dates. Data last updated 16 September 2025.

Sat 25/102:15 p.m.YYZ - STL

Nonstop2h 03mAir Canada

Sun 2/114:05 p.m.STL - YYZ

Nonstop2h 01mAir Canada

Deal found 16/9C$ 529

Sat 25/102:15 p.m.YYZ - STL

Nonstop2h 03mAir Canada

Sat 25/108:20 p.m.STL - YYZ

Nonstop1h 56mAir Canada

Deal found 16/9C$ 569

Thu 30/102:00 p.m.YYZ - STL

Nonstop2h 29mAir Canada

Thu 6/114:05 p.m.STL - YYZ

Nonstop2h 01mAir Canada

Deal found 15/9C$ 573

Wed 15/102:15 p.m.YYZ - STL

Nonstop2h 03mAir Canada

Tue 21/109:15 a.m.STL - YYZ

Nonstop1h 56mAir Canada

Deal found 13/9C$ 579

Mon 24/112:00 p.m.YYZ - STL

Nonstop2h 29mAir Canada

Sat 29/114:05 p.m.STL - YYZ

Nonstop2h 01mAir Canada

Deal found 15/9C$ 648

Wed 29/102:00 p.m.YYZ - STL

Nonstop2h 29mUnited Airlines

Wed 5/114:05 p.m.STL - YYZ

Nonstop2h 01mUnited Airlines

Deal found 14/9C$ 652

Thu 2/102:15 p.m.YYZ - STL

Nonstop2h 03mUnited Airlines

Sun 5/109:15 a.m.STL - YYZ

Nonstop1h 56mUnited Airlines

Deal found 14/9C$ 653

Fri 31/102:00 p.m.YYZ - STL

Nonstop2h 29mUnited Airlines

Fri 7/114:05 p.m.STL - YYZ

Nonstop2h 01mUnited Airlines

Deal found 15/9C$ 663

Last-minute flights from Niagara Falls to St. Louis
Discover last-minute flight deals from Niagara Falls to St. Louis. Data last updated 16 September 2025 and is based on user searches.

Mon 29/94:00 p.m.YYZ - STL

2 stops27h 36mMultiple Airlines

Thu 2/1010:35 a.m.STL - YYZ

1 stop9h 20mMultiple Airlines

Deal found 15/9C$ 448

Sat 4/106:30 a.m.YYZ - STL

1 stop28h 32mMultiple Airlines

Mon 6/109:32 p.m.STL - YYZ

1 stop15h 20mMultiple Airlines

Deal found 15/9C$ 466

Sun 12/1010:25 p.m.YYZ - STL

2 stops35h 42mMultiple Airlines

Sun 19/1010:57 a.m.STL - YYZ

1 stop26h 08mMultiple Airlines

Deal found 16/9C$ 471

Mon 13/104:00 p.m.YYZ - STL

2 stops42h 07mMultiple Airlines

Mon 20/106:05 p.m.STL - YYZ

1 stop27h 35mMultiple Airlines

Deal found 15/9C$ 470

Mon 20/1010:40 a.m.YYZ - STL

2 stops23h 27mMultiple Airlines

Thu 23/1010:57 a.m.STL - YYZ

1 stop26h 08mMultiple Airlines

Deal found 15/9C$ 410

Thu 30/109:45 a.m.YYZ - STL

1 stop29h 12mMultiple Airlines

Thu 6/116:22 p.m.STL - YYZ

2 stops43h 18mMultiple Airlines

Deal found 14/9C$ 396

One-way flights from Niagara Falls to St. Louis
Search for one-way flight options from Niagara Falls to St. Louis. Find affordable one-way fares based on user searches. Data last updated 16 September 2025.

Wed 29/1012:30 p.m.YYZ - STL

2 stops26h 27mMultiple Airlines

Deal found 14/9C$ 210

Thu 30/109:45 a.m.YYZ - STL

1 stop29h 12mMultiple Airlines

Deal found 14/9C$ 217

Thu 6/119:45 a.m.YYZ - STL

1 stop29h 12mMultiple Airlines

Deal found 14/9C$ 220

Mon 13/104:00 p.m.YYZ - STL

2 stops42h 07mMultiple Airlines

Deal found 15/9C$ 239

Sun 12/103:00 p.m.YYZ - STL

3 stops43h 07mMultiple Airlines

Deal found 14/9C$ 260

Sat 11/1011:00 a.m.YYZ - STL

1 stop9h 23mAmerican Airlines

Deal found 14/9C$ 279

Cheapflights Fare Finder

Use the filters below to find and compare flights from Niagara Falls to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Thu 13/11

7:55 p.m.-1:57 p.m.

1 stop19h 02m

Lambert-St Louis

Sun 16/11

7:45 p.m.-11:46 a.m.

2 stops15h 01m

C$ 503

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Wed 15/10

1:15 p.m.-11:54 p.m.

1 stop11h 39m

Lambert-St Louis

Tue 21/10

6:00 a.m.-2:30 p.m.

1 stop7h 30m

C$ 521

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Sat 25/10

2:15 p.m.-3:18 p.m.

Nonstop2h 03m

Lambert-St Louis

Sun 2/11

4:05 p.m.-7:06 p.m.

Nonstop2h 01m

C$ 529

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Fri 5/12

10:58 a.m.-9:47 p.m.

1 stop11h 49m

Lambert-St Louis

Sun 7/12

6:00 a.m.-10:56 a.m.

1 stop3h 56m

C$ 546

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Sat 4/10

6:30 a.m.-10:02 a.m.

1 stop28h 32m

Lambert-St Louis

Sun 12/10

6:05 p.m.-11:55 p.m.

1 stop28h 50m

C$ 546

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Sat 25/10

3:10 p.m.-10:06 p.m.

1 stop7h 56m

Lambert-St Louis

Sun 2/11

7:30 a.m.-12:32 p.m.

1 stop4h 02m

C$ 551

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Thu 30/10

1:15 p.m.-8:26 p.m.

1 stop8h 11m

Lambert-St Louis

Thu 6/11

11:33 a.m.-9:44 p.m.

1 stop9h 11m

C$ 559

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Tue 7/10

1:15 p.m.-8:26 p.m.

1 stop8h 11m

Lambert-St Louis

Mon 13/10

5:30 a.m.-2:59 p.m.

1 stop8h 29m

C$ 559

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Tue 7/10

1:15 p.m.-8:26 p.m.

1 stop8h 11m

Lambert-St Louis

Tue 14/10

10:16 a.m.-6:35 p.m.

1 stop7h 19m

C$ 559

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Tue 4/11

4:45 p.m.-3:18 p.m.

1 stop23h 33m

Lambert-St Louis

Fri 7/11

2:12 p.m.-2:20 p.m.

1 stop23h 08m

C$ 564

Flights are sorted by cheapest round-trip flights first.

Deals found on 14/9

Showing 1-10 of 19 results

Best time to book a flight from Niagara Falls to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Niagara Falls 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 Niagara Falls to St. Louis

How far ahead should I book a flight from Niagara Falls to St. Louis?

The price you pay for your flight from Niagara Falls to St. Louis may vary depending on when you book. For the best chance of a lower fare, look to book 84 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Niagara Falls to St. Louis?

Currently, January is the cheapest month in which you can book a flight from Niagara Falls to St. Louis (average of C$ 365). Flying from Niagara Falls to St. Louis in September is currently the most expensive (average of C$ 491). 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 NI4 to STL?

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

Weekly flight availability from Niagara Falls to St. Louis

The most flights from NI4 to STL are scheduled on a Monday (4 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (4 on average).

Reviews of airlines servicing St. Louis

Get a feel of what it's like to fly with Delta,United Airlines, andAmerican Airlines 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.

Delta

8.0

Very good

7,954 reviews

Check prices

Reviews

1 / 20

6.0

Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others

Delta

8.0

Very good

7,954 reviews

Delta

8.0

Very good

7,954 reviews

Check prices

Reviews

1 / 20

6.0

Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others

United Airlines

7.4

Good

8,929 reviews

Delta

8.0

Very good

7,954 reviews

Check prices

Reviews

1 / 20

6.0

Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,954 reviews

Check prices

Reviews

1 / 20

6.0

Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others

WestJet

7.2

Good

3,093 reviews

Delta

8.0

Very good

7,954 reviews

Check prices

Reviews

1 / 20

6.0

Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others

Air Canada

7.1

Good

10,000 reviews

Delta

8.0

Very good

7,954 reviews

Check prices

Reviews

1 / 20

6.0

Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others

Related info for your journey

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 4 inbound flights from Niagara Falls per day. 5 airlines have flights to Lambert-St Louis from Niagara Falls on a regular basis.
How long is the flight from Niagara Falls to St. Louis?
A quick flight from Niagara Falls to St. Louis can take about 2h 03m. American Airlines provides one of the quickest options available for as low as C$ 529. There are 1051 km between Niagara Falls and St. Louis. This flight may include one or multiple stops.
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 (80%), Jazz (80%), United Airlines (80%).
What are the cheapest flights from Niagara Falls to St. Louis?
On average you can expect to pay C$ 1,162 for a flight from Niagara Falls to St. Louis. The cheapest flight overall is C$ 435 while the most popular route, (Toronto Pearson Intl - Lambert-St Louis) is currently priced at C$ 392.
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.
What is the cheapest month to book a flight from Niagara Falls to St. Louis?
Currently, January is the cheapest month in which you can book a flight from Niagara Falls to St. Louis (average of C$ 365). Flying from Niagara Falls to St. Louis in September is currently the most expensive (average of C$ 491). 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

Chesterfield

St. Peters

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Niagara Falls to St. Louis

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Top 5 airlines flying from Niagara Falls to St. Louis

Airline	Cheapest	Average	Flexibility	On-time
American Airlines	CheapestC$ 430	AverageC$ 685	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
Air Canada	CheapestC$ 471	AverageC$ 677	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
Delta	CheapestC$ 475	AverageC$ 654	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
United Airlines	CheapestC$ 475	AverageC$ 683	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
WestJet	CheapestC$ 557	AverageC$ 869	FlexibilityNo cancel fee	On-time60%	Search WestJet flights

Fly with Cheapflights

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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Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from Niagara Falls to St. Louis from C$ 210

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 29/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from Niagara Falls to Lambert-St Louis are usually found in June or May, booked 85 days in advance, depart on a Thursday or Tuesday and return on a Tuesday

Cheap 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 16 September 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Niagara Falls to St. Louis

Cheapest flights from Niagara Falls to St. LouisExplore the most affordable flight options available from Niagara Falls to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 September 2025.

Explore the most affordable flight options available from Niagara Falls to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 September 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Niagara Falls to St. Louis that are best for you.

Best time to book a flight from Niagara Falls to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Niagara Falls with our price prediction graph.

Cheapflights Insights

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

How far ahead should I book a flight from Niagara Falls to St. Louis?

Use this chart to determine the optimal time to book a round-trip flight from Niagara Falls to St. Louis. Price data was last updated on 12 September 2025.

What is the cheapest month to book a 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 16 September 2025.

Weekly flight availability from Niagara Falls to St. Louis

Reviews of airlines servicing St. Louis

Get a feel of what it's like to fly with Delta,United Airlines, andAmerican Airlines 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.

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?

How long is the flight from Niagara Falls to St. Louis?

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

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

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Cheapest flights from Niagara Falls to St. Louis
Explore the most affordable flight options available from Niagara Falls to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 September 2025.