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Cheap flights from Niagara Falls to St. Louis from C$ 223

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 11/3. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — STL
26 Jan — 2 Feb1
1 adult

The best prices from Niagara Falls to Lambert-St Louis are usually found in May or April, booked 75 days in advance, depart on a Wednesday or Friday and return on a Wednesday

Cheap flight deals from Niagara Falls to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Niagara Falls (NI4) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 21 January 2025.

Round-trip from

C$ 590

One-way from

C$ 223

Popular in

September

Cheapest in

May

Average price

C$ 767
Delta
  • Delta
  • 28/2-5/3
  • 2 total stops
  • 35h 17m total
  • Niagara Falls to St. Louis
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11/3
  • 11/3
  • 2 total stops
  • 14h 16m total
  • Niagara Falls to St. Louis
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (C$ 18 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2025
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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 21 January 2025.

Fri 28/26:43 p.m.YYZ - STL
1 stop18h 44mDelta
Wed 5/36:06 a.m.STL - YYZ
1 stop16h 33mDelta
Deal found 21/1C$ 590
Sun 26/17:05 a.m.YYZ - STL
1 stop8h 38mMultiple Airlines
Mon 27/15:05 p.m.STL - YYZ
1 stop17h 40mMultiple Airlines
Deal found 20/1C$ 596
Mon 24/27:00 a.m.YYZ - STL
1 stop8h 55mAmerican Airlines
Thu 6/35:06 a.m.STL - YYZ
2 stops8h 54mAmerican Airlines
Deal found 21/1C$ 686
Mon 24/21:50 p.m.YYZ - STL
Nonstop2h 16mAir Canada
Sat 1/33:50 p.m.STL - YYZ
Nonstop1h 55mAir Canada
Deal found 21/1C$ 699
Wed 26/21:50 p.m.YYZ - STL
Nonstop2h 16mUnited Airlines
Mon 3/33:50 p.m.STL - YYZ
Nonstop1h 55mUnited Airlines
Deal found 21/1C$ 714
Fri 28/24:20 p.m.YYZ - STL
1 stop23h 05mAlaska Airlines
Sun 2/37:00 a.m.STL - YYZ
1 stop30h 55mAlaska Airlines
Deal found 21/1C$ 728
Mon 24/36:30 p.m.YYZ - STL
2 stops15h 44mWestJet
Sun 30/36:00 a.m.STL - YYZ
1 stop15h 59mWestJet
Deal found 19/1C$ 780

Find flights from Niagara Falls to St. Louis within your budget

Customize your flight search to find flights from Niagara Falls to St. Louis 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 629,999 searches. Data last updated 21 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Fri 28/2

6:43 p.m.-12:27 p.m.

1 stop18h 44m

Lambert-St Louis

Wed 5/3

6:06 a.m.-11:39 p.m.

1 stop16h 33m

C$ 590

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Mon 24/2

7:00 a.m.-2:55 p.m.

1 stop8h 55m

Lambert-St Louis

Sat 1/3

9:13 a.m.-7:00 p.m.

2 stops8h 47m

C$ 686

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Sat 22/2

1:50 p.m.-3:06 p.m.

Nonstop2h 16m

Lambert-St Louis

Sun 2/3

3:50 p.m.-6:45 p.m.

Nonstop1h 55m

C$ 697

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Wed 26/2

1:50 p.m.-3:06 p.m.

Nonstop2h 16m

Lambert-St Louis

Mon 3/3

3:50 p.m.-6:45 p.m.

Nonstop1h 55m

C$ 714

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Fri 28/2

4:20 p.m.-2:25 p.m.

1 stop23h 05m

Lambert-St Louis

Sun 2/3

7:00 a.m.-2:55 p.m.

1 stop30h 55m

C$ 728

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Wed 19/2

1:50 p.m.-3:06 p.m.

Nonstop2h 16m

Lambert-St Louis

Sun 23/2

3:50 p.m.-6:45 p.m.

Nonstop1h 55m

C$ 833

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Sat 15/3

6:15 a.m.-12:00 p.m.

1 stop6h 45m

Lambert-St Louis

Sat 15/3

5:00 p.m.-1:33 p.m.

1 stop19h 33m

C$ 849

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Tue 11/3

8:00 p.m.-9:16 a.m.

2 stops14h 16m

C$ 223

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Thu 20/3

6:15 a.m.-2:49 p.m.

1 stop9h 34m

C$ 322

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Tue 11/3

1:50 p.m.-3:06 p.m.

Nonstop2h 16m

C$ 377

Flights are sorted by cheapest round-trip flights first.

Deals found on 21/1

Showing 1-10 of 11 results
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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.

Travel insights for flights from Niagara Falls to St. Louis

Get recent, data-driven insights about flights from Niagara Falls to St. Louis including ideal travel times, pricing trends, and more.

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 17 January 2025.

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 75 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?

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 January 2025.

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

Explore weekly flight availability from Niagara Falls to St. Louis. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 21 January 2025.

The most flights from NI4 to STL are scheduled on a Monday (2 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (1 on average).

Rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average rainfall totals by month.

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.

Temperature in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature totals by month.

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).

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 January 2025.
To help decide which airline to fly from Niagara Falls to St. Louis, see what other customers have to say about WestJet, United Airlines and Air Canada. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,706 reviews
Check prices

Entertainment

7.1

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.2

Comfort

7.9

Reviews

1 / 10

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Alaska Airlines
8.0
Very good
9,706 reviews
Alaska Airlines
8.0
Very good
9,706 reviews
Check prices

Entertainment

7.1

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.2

Comfort

7.9

Reviews

1 / 10

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Delta
8.0
Very good
8,521 reviews
Alaska Airlines
8.0
Very good
9,706 reviews
Check prices

Entertainment

7.1

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.2

Comfort

7.9

Reviews

1 / 10

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

United Airlines
7.4
Good
8,984 reviews
Alaska Airlines
8.0
Very good
9,706 reviews
Check prices

Entertainment

7.1

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.2

Comfort

7.9

Reviews

1 / 10

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,706 reviews
Check prices

Entertainment

7.1

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.2

Comfort

7.9

Reviews

1 / 10

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

WestJet
7.2
Good
2,829 reviews
Alaska Airlines
8.0
Very good
9,706 reviews
Check prices

Entertainment

7.1

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.2

Comfort

7.9

Reviews

1 / 10

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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 1 inbound flight from Niagara Falls per day. 2 airlines have flights to Lambert-St Louis from Niagara Falls on a regular basis.

  • What are the cheapest airlines to fly from Niagara Falls to St. Louis one-way?

    The cheapest airline one-way is Delta, with whom users have recently found tickets for as low as C$ 322. However, be on the lookout for offers from Air Canada and Alaska Airlines, as they are both options that can get you from Niagara Falls to St. Louis for a low price.

  • 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 (79%), Jazz (79%), United Airlines (79%).

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

    On average you can expect to pay C$ 564 for a flight from Niagara Falls to St. Louis. The cheapest flight overall is C$ 229 while the most popular route, (Toronto Pearson Intl - Lambert-St Louis) is currently priced at C$ 466.

  • 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

Travelling to a place near Niagara Falls?

Book flights to Niagara Falls if you plan to visit one of these locations
St. Peters
Chesterfield

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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 629,999 searches. Data last updated 21 January 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 519AverageC$ 712FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 541AverageC$ 703FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

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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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