Cheap flights from St. Louis (STL) to Niagara Falls, Canada from $123

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 9/23. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
STL — YYZ
Jun 12 — Jun 191

The best prices from Lambert-St Louis to Niagara Falls are usually found in January or May, booked 63 days in advance, depart on a Wednesday or Thursday and return on a Thursday

Cheap flight deals from St. Louis to Niagara Falls

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Niagara Falls (NI4). 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 June 7, 2024.

Popular in

July

Cheapest in

January

Average price

$485

Round-trip from

$248
High demand for flights, 33% potential price rise
Best time to find cheap flights, 43% potential price drop
Average for round-trip flights in June 2024
From Lambert-St Louis to Niagara Falls

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

Travelers have found it’s best to book a flight 24 days in advance to save up to 128% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 24 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from St. Louis to Niagara Falls 1-2 weeks in advance for as low as $259, or $473 for flights within the next 24 hours.

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

Due to multiple factors, expect to potentially pay more when booking in February. For low rates, March can be a great choice for travel to Niagara Falls. Flights to Niagara Falls from St. Louis in March are about $360 on average during March, but can be found for as low as $176.

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.

Cheap St. Louis to Niagara Falls flights in June & July 2024

Find cheap flight options from St. Louis to Niagara Falls specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,048,502 searches. Prices were last updated on June 7, 2024.
These are some of the most attractive deals on flights from St. Louis to Niagara Falls in 2024. Check back regularly for other flight deals.
Tue 6/1811:57 amSTL - YYZ
1 stop10h 29mMultiple Airlines
Mon 6/244:00 pmYYZ - STL
2 stops19h 57mMultiple Airlines
Deal found 6/6$314
Tue 7/1610:11 amSTL - YYZ
1 stop10h 14mMultiple Airlines
Thu 7/186:30 amYYZ - STL
1 stop11h 59mMultiple Airlines
Deal found 6/6$331
Thu 6/207:45 amSTL - YYZ
2 stops10h 50mMultiple Airlines
Thu 8/226:30 amYYZ - STL
1 stop10h 50mMultiple Airlines
Deal found 6/6$342
Tue 6/187:45 amSTL - YYZ
2 stops12h 15mMultiple Airlines
Mon 6/244:00 pmYYZ - STL
2 stops19h 57mMultiple Airlines
Deal found 6/6$350
Fri 7/127:45 amSTL - YYZ
2 stops12h 15mMultiple Airlines
Sun 7/146:30 amYYZ - STL
1 stop11h 59mMultiple Airlines
Deal found 6/6$373
Fri 6/147:45 amSTL - YYZ
2 stops12h 12mMultiple Airlines
Tue 6/188:00 pmYYZ - STL
1 stop18h 05mMultiple Airlines
Deal found 6/6$381
Fri 6/147:44 pmSTL - YYZ
1 stop27h 18mMultiple Airlines
Tue 6/186:30 amYYZ - STL
1 stop8h 53mMultiple Airlines
Deal found 6/6$385
Mon 6/176:16 pmSTL - YYZ
1 stop19h 12mMultiple Airlines
Fri 6/212:00 pmYYZ - STL
1 stop28h 28mMultiple Airlines
Deal found 6/6$387
Wed 6/128:02 pmSTL - YYZ
2 stops26h 00mMultiple Airlines
Thu 6/2010:35 amYYZ - STL
1 stop9h 47mMultiple Airlines
Deal found 6/6$389

St. Louis to Niagara Falls 2024 flight deals

Discover exclusive flight deals for travel between St. Louis and Niagara Falls in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,048,502 searches. Data last updated June 7, 2024.
These are some of the most attractive deals on flights from St. Louis to Niagara Falls in 2024. Check back regularly for other flight deals.
Tue 6/1811:57 amSTL - YYZ
1 stop10h 29mMultiple Airlines
Mon 6/244:00 pmYYZ - STL
2 stops19h 57mMultiple Airlines
Deal found 6/6$314
Tue 7/1610:11 amSTL - YYZ
1 stop10h 14mMultiple Airlines
Thu 7/186:30 amYYZ - STL
1 stop11h 59mMultiple Airlines
Deal found 6/6$331
Thu 6/207:45 amSTL - YYZ
2 stops10h 50mMultiple Airlines
Thu 8/226:30 amYYZ - STL
1 stop10h 50mMultiple Airlines
Deal found 6/6$342
Tue 6/187:45 amSTL - YYZ
2 stops12h 15mMultiple Airlines
Mon 6/244:00 pmYYZ - STL
2 stops19h 57mMultiple Airlines
Deal found 6/6$350
Fri 7/127:45 amSTL - YYZ
2 stops12h 15mMultiple Airlines
Sun 7/146:30 amYYZ - STL
1 stop11h 59mMultiple Airlines
Deal found 6/6$373
Fri 6/147:45 amSTL - YYZ
2 stops12h 12mMultiple Airlines
Tue 6/188:00 pmYYZ - STL
1 stop18h 05mMultiple Airlines
Deal found 6/6$381
Fri 6/147:44 pmSTL - YYZ
1 stop27h 18mMultiple Airlines
Tue 6/186:30 amYYZ - STL
1 stop8h 53mMultiple Airlines
Deal found 6/6$385
Mon 6/176:16 pmSTL - YYZ
1 stop19h 12mMultiple Airlines
Fri 6/212:00 pmYYZ - STL
1 stop28h 28mMultiple Airlines
Deal found 6/6$387
Wed 6/128:02 pmSTL - YYZ
2 stops26h 00mMultiple Airlines
Thu 6/2010:35 amYYZ - STL
1 stop9h 47mMultiple Airlines
Deal found 6/6$389

St. Louis to Niagara Falls flights leaving soon

Find last-minute flight options from St. Louis to Niagara Falls for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,048,502 searches. Data last updated June 7, 2024.
Book one of these great deals on flights from St. Louis to Niagara Falls. To prevent any unwanted surprises, users should verify their flight info before booking.
Tue 6/1811:57 amSTL - YYZ
1 stop10h 29mMultiple Airlines
Mon 6/244:00 pmYYZ - STL
2 stops19h 57mMultiple Airlines
Deal found 6/6$314
Thu 6/207:45 amSTL - YYZ
2 stops10h 50mMultiple Airlines
Thu 8/226:30 amYYZ - STL
1 stop10h 50mMultiple Airlines
Deal found 6/6$342
Tue 6/187:45 amSTL - YYZ
2 stops12h 15mMultiple Airlines
Mon 6/244:00 pmYYZ - STL
2 stops19h 57mMultiple Airlines
Deal found 6/6$350
Fri 6/147:45 amSTL - YYZ
2 stops12h 12mMultiple Airlines
Tue 6/188:00 pmYYZ - STL
1 stop18h 05mMultiple Airlines
Deal found 6/6$381
Fri 6/147:44 pmSTL - YYZ
1 stop27h 18mMultiple Airlines
Tue 6/186:30 amYYZ - STL
1 stop8h 53mMultiple Airlines
Deal found 6/6$385
Mon 6/176:16 pmSTL - YYZ
1 stop19h 12mMultiple Airlines
Fri 6/212:00 pmYYZ - STL
1 stop28h 28mMultiple Airlines
Deal found 6/6$387
Wed 6/128:02 pmSTL - YYZ
2 stops26h 00mMultiple Airlines
Thu 6/2010:35 amYYZ - STL
1 stop9h 47mMultiple Airlines
Deal found 6/6$389
Thu 6/204:45 pmSTL - YYZ
3 stops29h 41mMultiple Airlines
Thu 8/224:15 pmYYZ - STL
1 stop16h 05mMultiple Airlines
Deal found 6/6$391
Sun 6/167:45 amSTL - YYZ
2 stops12h 15mMultiple Airlines
Wed 6/262:00 pmYYZ - STL
1 stop28h 28mMultiple Airlines
Deal found 6/6$393

One-way flights to Niagara Falls from St. Louis

Search for one-way flight options from St. Louis to Niagara Falls. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,048,502 searches. Data last updated June 7, 2024.
If you're seeking multiple options on one-way flights from St. Louis to Niagara Falls, be sure to check out these deals, which are updated often. Users needing a return flight from St. Louis to Niagara Falls should utilize the search form above.
Mon 9/237:57 amSTL - YYZ
1 stop15h 15mMultiple Airlines
Deal found 6/5$123
Fri 7/512:23 pmSTL - YYZ
1 stop17h 20mMultiple Airlines
Deal found 6/6$151
Fri 8/307:45 amSTL - YYZ
2 stops12h 15mMultiple Airlines
Deal found 6/5$167
Mon 9/237:57 amSTL - YYZ
2 stops12h 10mMultiple Airlines
Deal found 6/5$169
Wed 6/128:02 pmSTL - YYZ
2 stops26h 24mMultiple Airlines
Deal found 6/6$181
Sat 6/156:22 pmSTL - YYZ
1 stop18h 38mMultiple Airlines
Deal found 6/6$191
Sat 6/1512:45 pmSTL - YYZ
3 stops20h 08mMultiple Airlines
Deal found 6/6$193
Wed 6/128:02 pmSTL - YYZ
3 stops24h 58mMultiple Airlines
Deal found 6/6$209
Sat 6/156:22 pmSTL - YYZ
2 stops28h 04mMultiple Airlines
Deal found 6/6$214

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

Customize your flight search to find flights from St. Louis 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 3,048,502 searches. Data last updated June 7, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$314 - $645

Route

Depart

Return

Price

Lambert-St LouisToronto Pearson Intl

STL - YYZ

STLYYZ

Lambert-St Louis

Tue 6/18

1 stop10h 29m

Toronto Pearson Intl

Mon 6/24

2 stops19h 57m

$314

Lambert-St LouisToronto Pearson Intl

STL - YYZ

STLYYZ

Lambert-St Louis

Tue 7/16

1 stop10h 14m

Toronto Pearson Intl

Thu 7/18

1 stop11h 59m

$331

Lambert-St LouisToronto Pearson Intl

STL - YYZ

STLYYZ

Lambert-St Louis

Thu 6/20

2 stops10h 50m

Toronto Pearson Intl

Thu 8/22

1 stop10h 50m

$342

Lambert-St LouisToronto Pearson Intl

STL - YYZ

STLYYZ

Lambert-St Louis

Tue 6/18

2 stops12h 15m

Toronto Pearson Intl

Mon 6/24

2 stops19h 57m

$350

Lambert-St LouisToronto Pearson Intl

STL - YYZ

STLYYZ

Lambert-St Louis

Fri 8/9

1 stop7h 29m

Toronto Pearson Intl

Wed 8/14

1 stop7h 27m

$453

Lambert-St LouisToronto Pearson Intl

STL - YYZ

STLYYZ

Lambert-St Louis

Wed 9/11

1 stop6h 21m

Toronto Pearson Intl

Sat 9/14

1 stop12h 14m

$500

Lambert-St LouisToronto Pearson Intl

STL - YYZ

STLYYZ

Lambert-St Louis

Wed 9/11

Nonstop1h 54m

Toronto Pearson Intl

Mon 9/16

Nonstop2h 05m

$533

Lambert-St LouisToronto Pearson Intl

STL - YYZ

STLYYZ

Lambert-St Louis

Wed 9/11

1 stop6h 45m

Toronto Pearson Intl

Sat 9/14

Nonstop2h 05m

$543

Lambert-St LouisToronto Pearson Intl

STL - YYZ

STLYYZ

Lambert-St Louis

Sat 9/21

2 stops13h 32m

Toronto Pearson Intl

Fri 9/27

2 stops10h 57m

$645

Flights are sorted by cheapest first

Deals found on 6/6

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

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Niagara Falls. Price data was last updated on May 31, 2024.
Booking 63 days in advance of your planned departure date is, on average, the best time to get cheap flights from St. Louis to Niagara Falls. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Search Deals

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

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Niagara Falls. Price data was last updated on June 2, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their St. Louis to Niagara Falls flight should consider departing on Friday at noon when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

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

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

Temperature and rainfall in Niagara Falls by month

Plan your trip to Niagara Falls by taking into account the average temperature and rainfall totals by month.

YTO

Temperature

21.2 - 69.8 °F

If weather is an important factor for your trip to Niagara Falls, 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 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 21.2 F).

Reviews of airlines servicing Niagara Falls

Get insights into the airlines that provide service to Niagara Falls. 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 Niagara Falls. Reviews last updated June 7, 2024.
To help decide which airline to fly from St. Louis to Niagara Falls, see what other customers have to say about United Airlines, American Airlines and Delta. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good
10,363 reviews

Overall

8.0

Food

7.4

Boarding

8.2

Entertainment

8.0

Comfort

7.9

Crew

8.6

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

8.0
Very good
10,363 reviews
8.0
Very good
10,363 reviews

Overall

8.0

Food

7.4

Boarding

8.2

Entertainment

8.0

Comfort

7.9

Crew

8.6

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

7.5
Good
2,853 reviews
8.0
Very good
10,363 reviews

Overall

8.0

Food

7.4

Boarding

8.2

Entertainment

8.0

Comfort

7.9

Crew

8.6

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

7.4
Good
10,696 reviews
8.0
Very good
10,363 reviews

Overall

8.0

Food

7.4

Boarding

8.2

Entertainment

8.0

Comfort

7.9

Crew

8.6

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

7.3
Good
14,226 reviews
8.0
Very good
10,363 reviews

Overall

8.0

Food

7.4

Boarding

8.2

Entertainment

8.0

Comfort

7.9

Crew

8.6

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

7.0
Good
7,045 reviews
8.0
Very good
10,363 reviews

Overall

8.0

Food

7.4

Boarding

8.2

Entertainment

8.0

Comfort

7.9

Crew

8.6

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Niagara Falls. 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 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.

  • Can I find flights from St. Louis to Niagara Falls for under $400 on Cheapflights?

    Yes, there are multiple flights from St. Louis to Niagara Falls for under $400. The cheapest flight booked recently is on Multiple Airlines for just $314, but on average you can expect to pay $400.

  • Are there nonstop flights from St. Louis to Niagara Falls for under $600 on Cheapflights?

    Cheapflights has at least 16 direct flights from St. Louis to Niagara Falls under $600. A good price for a nonstop flight from St. Louis to Niagara Falls is less than $1,121.

  • Are there last-minute flights available from St. Louis to Niagara Falls for under $400?

    There are currently 20+ open flights from St. Louis to Niagara Falls within the next 7 days for less than $400.

  • 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 (82%), Air Canada (78%) and Jazz (78%).

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

    Looking at all options, your cheapest flight can be booked for $242. While the most popular route (Lambert-St Louis - Toronto Pearson Intl) can be booked for $314 on average our data indicates $1,201 when flying from St. Louis to Niagara Falls.

  • What does STL to YYZ mean?

    These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Lambert-St Louis Airport to Toronto Pearson Intl Airport flight would often be abbreviated as a STL to YYZ flight. This flight route has multiple associated airports, so we think it might be helpful to learn the name and codes of them as well. They are Hamilton Airport (YHM), Toronto Island Airport (YTZ), Toronto Kitchener-Waterloo Airport (YKF).

  • Can I find deals for flights from St. Louis to Niagara Falls that include extra baggage allowance?

    The amount of baggage you can bring on your St. Louis to Niagara Falls flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from St. Louis to Niagara Falls with specific airlines?

    Yes, Cheapflights allows you to browse and filter St. Louis to Niagara Falls flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • 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.

  • Can I find deals for flights from St. Louis to Niagara Falls that allow pets onboard?

    Many airlines flying from St. Louis to Niagara Falls offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from St. Louis to Niagara Falls?

    Yes, you can often find last-minute deals on St. Louis to Niagara Falls flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the St. Louis to Niagara Falls flight deals updated?

    The St. Louis to Niagara Falls flight deals you see on this page were last updated on 6/6.

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

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

    Currently, January is the cheapest month in which you can book a flight from St. Louis to Niagara Falls (average of $237). Flying from St. Louis to Niagara Falls in July is currently the most expensive (average of $387). 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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Top 3 airlines flying from St. Louis to Niagara Falls

Discover the top 3 airlines that operate flights from St. Louis 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 3,048,502 searches. Data last updated June 7, 2024.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$188Average$278FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$225Average$533FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$299Average$551FlexibilityNo cancel feeOn-time71%

Search flights from St. Louis to Niagara Falls by cabin class

Find flights from St. Louis to Niagara Falls, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Hourly flight availability from St. Louis to Niagara Falls

Find hourly flight availability from St. Louis 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 June 7, 2024.
0%of flight departuresEarly morningMidnight to 6 am
50%of flight departuresMorning6 am to noon
50%of flight departuresAfternoonNoon to 6 pm
0%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Weekly flight availability from St. Louis to Niagara Falls

Explore weekly flight availability from St. Louis to Niagara Falls. 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 June 7, 2024.
Sunday2daily flights
Monday2daily flights
Tuesday2daily flights
Wednesday2daily flights
Thursday2daily flights
Friday2daily flights
Saturday2daily flights
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