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Niagara Falls

$104+ Cheap flights from Denver (DEN) to Niagara Falls, ON, 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 1/29. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — YYZ
Jan 14 — Jan 211
Wed 1/14
Wed 1/21
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

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 December 15, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/13. 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 12/239:26 pmDEN - YYZ
2 stops14h 54mMultiple Airlines
Wed 1/73:15 pmYYZ - DEN
1 stop12h 08mMultiple Airlines
Deal found 12/13$460
This Kiwi.com deal was found by Cheapflights users on 12/13. 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 12/245:51 pmDEN - YYZ
2 stops25h 28mMultiple Airlines
Wed 1/76:20 pmYYZ - DEN
1 stop9h 03mMultiple Airlines
Deal found 12/13$474
This Kiwi.com deal was found by Cheapflights users on 12/13. 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.
Mon 12/2211:59 pmDEN - YYZ
1 stop9h 44mMultiple Airlines
Wed 1/712:30 pmYYZ - DEN
2 stops17h 28mMultiple Airlines
Deal found 12/13$505
This Kiwi.com deal was found by Cheapflights users on 12/13. 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 12/239:26 pmDEN - YYZ
2 stops14h 54mMultiple Airlines
Mon 1/53:15 pmYYZ - DEN
1 stop12h 08mMultiple Airlines
Deal found 12/13$522
This Kiwi.com deal was found by Cheapflights users on 12/13. 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 12/239:26 pmDEN - YYZ
2 stops14h 54mMultiple Airlines
Tue 1/68:20 pmYYZ - DEN
1 stop15h 30mMultiple Airlines
Deal found 12/13$523
This Kiwi.com deal was found by Cheapflights users on 12/14. 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.
Sun 12/219:26 pmDEN - YYZ
2 stops12h 17mMultiple Airlines
Mon 1/57:45 pmYYZ - DEN
1 stop7h 38mMultiple Airlines
Deal found 12/14$532
This Kiwi.com deal was found by Cheapflights users on 12/15. 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.
Mon 12/2911:59 pmDEN - YYZ
2 stops17h 26mMultiple Airlines
Mon 1/53:15 pmYYZ - DEN
1 stop12h 08mMultiple Airlines
Deal found 12/15$539
This Kiwi.com deal was found by Cheapflights users on 12/13. 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.
Mon 12/2211:59 pmDEN - YYZ
1 stop9h 44mMultiple Airlines
Mon 1/58:20 pmYYZ - DEN
2 stops21h 13mMultiple Airlines
Deal found 12/13$542
This Kiwi.com deal was found by Cheapflights users on 12/13. 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 12/2411:06 pmDEN - YYZ
1 stop16h 24mMultiple Airlines
Mon 1/57:45 pmYYZ - DEN
1 stop7h 38mMultiple Airlines
Deal found 12/13$578

Find 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 December 15, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$234
(Kiwi.com)

One-way from

$104
(Trip.com)

Popular in

December

Cheapest in

February

Average price

$656
Provider with most accurate pricing for Denver Intl-Toronto (YTO) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Denver Intl-Toronto (YTO) flights.
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From Denver Intl to Niagara Falls
Search Deals
One-way flight from Denver Intl to Niagara Falls
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($41 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
Search Deals

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 December 15, 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

Thu 1/22

10:29 pm-7:42 pm

1 stop19h 13m

Toronto Pearson Intl

Mon 2/2

1:30 pm-10:32 am

2 stops23h 02m

$234

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Sun 1/11

6:02 pm-6:20 am

1 stop10h 18m

Toronto Pearson Intl

Sun 1/18

8:00 pm-3:56 am

1 stop9h 56m

$269

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Fri 1/23

6:37 pm-6:47 am

1 stop10h 10m

Toronto Pearson Intl

Sun 2/1

8:00 pm-11:20 am

2 stops17h 20m

$301

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Thu 1/22

7:00 am-3:35 pm

1 stop30h 35m

Toronto Pearson Intl

Mon 2/2

4:45 pm-12:38 pm

1 stop21h 53m

$365

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Thu 1/22

1:34 pm-3:35 pm

1 stop24h 01m

Toronto Pearson Intl

Sun 2/1

4:45 pm-4:13 pm

1 stop25h 28m

$365

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Thu 1/15

9:50 am-10:40 pm

1 stop10h 50m

Toronto Pearson Intl

Sun 1/18

7:15 am-8:47 pm

2 stops15h 32m

$369

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Fri 2/6

5:09 pm-3:35 pm

1 stop20h 26m

Toronto Pearson Intl

Sun 2/8

4:45 pm-11:35 pm

1 stop32h 50m

$373

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Wed 1/21

5:09 pm-3:35 pm

1 stop20h 26m

Toronto Pearson Intl

Fri 1/23

4:45 pm-4:13 pm

1 stop25h 28m

$384

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Thu 1/29

12:34 pm-3:35 pm

2 stops25h 01m

Toronto Pearson Intl

Thu 2/5

4:45 pm-10:53 am

2 stops20h 08m

$409

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Wed 1/7

9:45 pm-6:20 am

1 stop30h 35m

$117

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

Showing 1-10 of 18 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 December 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, June is the cheapest month in which you can book a flight from Denver to Niagara Falls (average of $129). Flying from Denver to Niagara Falls in February is currently the most expensive (average of $232). 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 December 15, 2025.

It’s optimal to fly from Denver to Niagara Falls in the morning. By choosing this option you can save up to 27% on the cost of your flight, compared to a flight in the afternoon.

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 December 15, 2025.

The most flights from DEN to NI4 are scheduled on a Monday (7 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (5 on average).

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 December 15, 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
9,092 reviews

Comfort

7.3

Crew

8.1

Boarding

7.7

Overall

7.4

Food

6.6

Entertainment

7.1

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
9,092 reviews
United Airlines
7.4
Good
9,092 reviews

Comfort

7.3

Crew

8.1

Boarding

7.7

Overall

7.4

Food

6.6

Entertainment

7.1

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
3,202 reviews
United Airlines
7.4
Good
9,092 reviews

Comfort

7.3

Crew

8.1

Boarding

7.7

Overall

7.4

Food

6.6

Entertainment

7.1

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
10,525 reviews
United Airlines
7.4
Good
9,092 reviews

Comfort

7.3

Crew

8.1

Boarding

7.7

Overall

7.4

Food

6.6

Entertainment

7.1

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 6 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 Alaska Airlines fly from Denver to Niagara Falls in about 30h 35m. The time it takes to get you to your destination can typically vary by up to . The distance from Denver to Niagara Falls is about 1312 mi.

  • What are the cheapest airlines to fly from Denver to Niagara Falls one-way?

    One-way options have recently been found by users for as low as $175 on Air Canada. Other airlines that offer cheap prices include United Airlines from $193 and Delta from $218 one-way.

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

    Consider Austrian Airlines (87%), United Airlines (81%) or Air Canada (81%) 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 $658, our data shows the cheapest flight currently is $194. When looking at the most popular route, (Denver Intl - Toronto Pearson Intl), you can expect to pay $258 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, June is the cheapest month in which you can book a flight from Denver to Niagara Falls (average of $129). Flying from Denver to Niagara Falls in February is currently the most expensive (average of $232). 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 December 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$216Average$545FlexibilityNo cancel feeOn-time67%
WestJetCheapest$258Average$297FlexibilityNo cancel feeOn-time60%
United AirlinesCheapest$289Average$545FlexibilityNo cancel feeOn-time69%

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