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Niagara Falls

$172+ Cheap flights from Denver (DEN) to Niagara Falls, Canada

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 9/28. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — YYZ
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheapflights Tip: The best prices from Denver Intl to Niagara Falls are usually found in February or March, booked 43 days in advance, depart on a Thursday or Tuesday and return on a Friday

Cheap flight deals from Denver to Niagara Falls

Keep the following information in mind while searching for Denver to Niagara Falls flight deals. Data was last updated September 16, 2025.

Round-trip from

$217
(Kiwi.com)

One-way from

$172
(Delta)

Popular in

December

Cheapest in

February

Average price

$496
From Denver Intl to Niagara Falls
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One-way flight from Denver Intl to Niagara Falls
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Highest demand for flights based on searches. 1% potential increase in price ($6 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Denver to Niagara Falls

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

This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/228:21 pmDEN - YYZ
1 stop22h 46mMultiple Airlines
Sun 10/264:00 pmYYZ - DEN
1 stop18h 12mMultiple Airlines
Deal found 9/15$217
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/158:21 pmDEN - YYZ
1 stop22h 46mMultiple Airlines
Wed 10/229:45 amYYZ - DEN
1 stop15h 25mMultiple Airlines
Deal found 9/15$221
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/228:21 pmDEN - YYZ
1 stop22h 46mMultiple Airlines
Fri 10/248:05 pmYYZ - DEN
1 stop9h 54mMultiple Airlines
Deal found 9/15$226
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1410:29 pmDEN - YYZ
2 stops22h 23mMultiple Airlines
Mon 10/204:00 pmYYZ - DEN
1 stop18h 12mMultiple Airlines
Deal found 9/15$229
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/228:21 pmDEN - YYZ
1 stop22h 46mMultiple Airlines
Tue 10/281:30 pmYYZ - DEN
2 stops16h 29mMultiple Airlines
Deal found 9/15$232
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/247:00 amDEN - YYZ
1 stop12h 07mMultiple Airlines
Wed 10/2912:30 pmYYZ - DEN
2 stops17h 29mMultiple Airlines
Deal found 9/15$234
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/247:00 amDEN - YYZ
1 stop12h 07mMultiple Airlines
Thu 10/309:45 amYYZ - DEN
1 stop10h 48mMultiple Airlines
Deal found 9/15$237
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/217:00 amDEN - YYZ
2 stops13h 52mMultiple Airlines
Sun 10/264:00 pmYYZ - DEN
1 stop18h 12mMultiple Airlines
Deal found 9/15$239
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/319:05 amDEN - YYZ
1 stop8h 55mMultiple Airlines
Sun 11/28:00 pmYYZ - DEN
1 stop29h 16mMultiple Airlines
Deal found 9/15$240

Cheapflights Fare Finder

 
Customize your flight search to find flights from Denver 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 2,558,603 searches. Data last updated September 16, 2025.
Use the filters below to find and compare flights from Denver to Niagara Falls that are best for you.

Fly from

Denver

Fly to

Niagara Falls

Route

Depart

Return

Price

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Tue 10/21

6:05 pm-6:01 am

1 stop9h 56m

Toronto Pearson Intl

Fri 10/24

2:55 pm-4:29 pm

Nonstop3h 34m

$379

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Tue 10/7

5:45 am-2:45 pm

1 stop7h 00m

Toronto Pearson Intl

Sat 10/11

1:20 pm-9:41 pm

1 stop10h 21m

$399

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Thu 10/30

8:45 am-7:39 pm

1 stop8h 54m

Toronto Pearson Intl

Sun 11/2

2:50 pm-4:40 pm

Nonstop3h 50m

$409

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Sat 11/15

8:02 pm-3:35 pm

1 stop17h 33m

Toronto Pearson Intl

Tue 11/18

4:45 pm-11:59 pm

1 stop9h 14m

$413

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Fri 10/24

12:55 am-8:55 am

1 stop6h 00m

Toronto Pearson Intl

Sat 11/1

6:20 am-12:39 pm

1 stop8h 19m

$414

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Thu 10/16

12:55 am-8:55 am

1 stop6h 00m

Toronto Pearson Intl

Mon 10/27

7:24 pm-11:04 pm

1 stop5h 40m

$414

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Sun 9/28

12:59 am-10:21 am

1 stop7h 22m

$172

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Tue 9/23

10:01 am-6:12 am

2 stops18h 11m

$172

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Sat 9/27

7:15 am-5:44 pm

1 stop8h 29m

$172

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Mon 10/13

12:50 am-10:42 am

1 stop7h 52m

$172

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 17 results
1
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Best time to book a flight from Denver to Niagara Falls

Have a flexible travel schedule? Discover the best time to fly to Niagara Falls from Denver 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 Denver to Niagara Falls

How far ahead should I book a flight from Denver to Niagara Falls?

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

The price you pay for your flight from Denver to Niagara Falls may vary depending on when you book. For the best chance of a lower fare, look to book 43 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 Denver to Niagara Falls?

Currently, January is the cheapest month in which you can book a flight from Denver to Niagara Falls (average of $243). Flying from Denver to Niagara Falls in August is currently the most expensive (average of $348). 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 DEN to NI4?

Find hourly flight availability from Denver 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 September 16, 2025.

When flying from Denver to Niagara Falls, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Denver to Niagara Falls

Explore weekly flight availability from Denver 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 September 16, 2025.

The most flights from DEN to NI4 are scheduled on a Monday (11 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (10 on average).

How much does it cost to fly round-trip from Denver to Niagara Falls?

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 September 16, 2025.
Get a feel of what it's like to fly with United Airlines, WestJet, and Air Canada from Denver to Niagara Falls by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,924 reviews

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Crew

8.1

Overall

7.4

Food

6.6

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
7.4
Good
8,924 reviews
United Airlines
7.4
Good
8,924 reviews

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Crew

8.1

Overall

7.4

Food

6.6

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.
WestJet
7.2
Good
3,093 reviews
United Airlines
7.4
Good
8,924 reviews

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Crew

8.1

Overall

7.4

Food

6.6

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
10,000 reviews
United Airlines
7.4
Good
8,924 reviews

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Crew

8.1

Overall

7.4

Food

6.6

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

Find useful and relevant information for your journey from Denver 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 Denver to Niagara Falls?

    If you book a flight to Niagara Falls from Denver, you will be flying from Denver Intl, which is the city’s only airport. Denver Intl (DEN) is located 18.5 mi from the center of Denver. There are 10 flights from Denver Intl to Niagara Falls per day from 3 different airlines.

  • How long is the flight from Denver to Niagara Falls?

    Airlines like Air Canada and Delta fly from Denver to Niagara Falls in about 7h. The time it takes to get you to your destination can typically vary by up to 2h 56m. The distance from Denver to Niagara Falls is about 1312 mi. This flight may include one or multiple stops.

  • What are the most reliable airlines from Denver to Niagara Falls?

    Consider Austrian Airlines (74%), Brussels Airlines (74%) or Air Canada (73%) when booking your flight. These represent the most reliable airlines when flying from Denver to Niagara Falls.

  • What are the cheapest flights from Denver to Niagara Falls?

    While on average a flight from Denver to Niagara Falls is generally $1,014, our data shows the cheapest flight currently is $182. When looking at the most popular route, (Denver Intl - Toronto Pearson Intl), you can expect to pay $215 for that flight.

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

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

  • How can I find direct flights from Denver to Niagara Falls?

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

  • Can I find deals for business class flights from Denver to Niagara Falls?

    Yes. Cheapflights offers flight deals from Denver 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.

  • What is the cheapest month to book a flight from Denver to Niagara Falls?

    Currently, January is the cheapest month in which you can book a flight from Denver to Niagara Falls (average of $243). Flying from Denver to Niagara Falls in August is currently the most expensive (average of $348). 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 Denver to Niagara Falls

Discover the top 3 airlines that operate flights from Denver 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 2,558,603 searches. Data last updated September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$224Average$542FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$244Average$543FlexibilityNo cancel feeOn-time69%
WestJetCheapest$258Average$297FlexibilityNo cancel feeOn-time60%

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