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Niagara Falls

$149+ 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 4/8. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — YYZ
Apr 23 — Apr 301
Thu 4/23
Thu 4/30
1 adult, Economy
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Cheapflights Tip: The best prices from Denver Intl to Niagara Falls are usually found in July or August, booked 68 days in advance, depart on a Thursday or Friday 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 March 24, 2026.

This Kiwi.com deal was found by Cheapflights users on 3/22. 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 4/1210:30 pm
DEN
-
YYZ
2 stops37h 46m
Multiple Airlines
Sat 4/182:20 pm
YYZ
-
DEN
1 stop10h 39m
Multiple Airlines
Deal found 3/22$456
This Kiwi.com deal was found by Cheapflights users on 3/22. 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 4/176:00 am
DEN
-
YYZ
1 stop22h 43m
Multiple Airlines
Tue 4/219:45 am
YYZ
-
DEN
1 stop13h 59m
Multiple Airlines
Deal found 3/22$457
This Kiwi.com deal was found by Cheapflights users on 3/19. 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.
Thu 5/2811:54 pm
DEN
-
YYZ
2 stops22h 00m
Multiple Airlines
Mon 6/157:00 am
YYZ
-
DEN
1 stop22h 58m
Multiple Airlines
Deal found 3/19$458
This Kiwi.com deal was found by Cheapflights users on 3/19. 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 5/810:36 pm
DEN
-
YYZ
1 stop18h 43m
Multiple Airlines
Mon 5/111:45 pm
YYZ
-
DEN
1 stop15h 40m
Multiple Airlines
Deal found 3/19$460
This Delta deal was found by Cheapflights users on 3/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/207:12 am
DEN
-
YYZ
1 stop14h 31m
Delta
Thu 4/237:55 am
YYZ
-
DEN
1 stop15h 10m
Delta
Deal found 3/23$461
This Kiwi.com deal was found by Cheapflights users on 3/23. 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 6/311:54 pm
DEN
-
YYZ
2 stops12h 11m
Multiple Airlines
Wed 6/109:55 am
YYZ
-
DEN
1 stop10h 09m
Multiple Airlines
Deal found 3/23$462
This Kiwi.com deal was found by Cheapflights users on 3/20. 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.
Sat 5/21:09 pm
DEN
-
YYZ
2 stops20h 26m
Multiple Airlines
Sat 5/99:30 am
YYZ
-
DEN
1 stop14h 11m
Multiple Airlines
Deal found 3/20$463
This Kiwi.com deal was found by Cheapflights users on 3/23. 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 4/177:05 pm
DEN
-
YYZ
1 stop9h 38m
Multiple Airlines
Tue 4/289:35 am
YYZ
-
DEN
2 stops12h 27m
Multiple Airlines
Deal found 3/23$464
This Kiwi.com deal was found by Cheapflights users on 3/21. 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.
Sat 5/97:50 am
DEN
-
YYZ
1 stop29h 55m
Multiple Airlines
Sun 5/174:45 pm
YYZ
-
DEN
2 stops33h 03m
Multiple Airlines
Deal found 3/21$465
This Kiwi.com deal was found by Cheapflights users on 3/23. 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 4/1911:59 pm
DEN
-
YYZ
2 stops12h 06m
Multiple Airlines
Sat 4/259:45 am
YYZ
-
DEN
1 stop8h 00m
Multiple Airlines
Deal found 3/23$466
This Kiwi.com deal was found by Cheapflights users on 3/23. 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 4/2111:59 pm
DEN
-
YYZ
1 stop12h 17m
Multiple Airlines
Tue 4/289:35 am
YYZ
-
DEN
2 stops12h 27m
Multiple Airlines
Deal found 3/23$467
This Kiwi.com deal was found by Cheapflights users on 3/19. 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 4/611:59 pm
DEN
-
YYZ
1 stop12h 21m
Multiple Airlines
Wed 4/83:40 pm
YYZ
-
DEN
2 stops18h 29m
Multiple Airlines
Deal found 3/19$468

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 March 24, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$456
(Kiwi.com)

One-way from

$149
(Kiwi.com)

Popular in

February

Cheapest in

July

Average price

$569
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.
Search Deals
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 ($46 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
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 March 24, 2026.
Use the filters below to find and compare flights from Denver to Niagara Falls that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Sat 5/16

9:55 am-3:14 pm

Nonstop3h 19m

Toronto Pearson Intl

Tue 5/19

10:45 am-12:40 pm

Nonstop3h 55m

$568

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Fri 5/8

9:55 am-3:14 pm

Nonstop3h 19m

Toronto Pearson Intl

Mon 5/11

10:45 am-12:40 pm

Nonstop3h 55m

$568

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Fri 4/24

4:13 pm-9:32 pm

Nonstop3h 19m

Toronto Pearson Intl

Sun 4/26

4:18 pm-6:13 pm

Nonstop3h 55m

$568

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Thu 4/16

4:13 pm-9:32 pm

Nonstop3h 19m

Toronto Pearson Intl

Fri 4/17

4:18 pm-6:13 pm

Nonstop3h 55m

$568

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Fri 4/10

4:13 pm-9:32 pm

Nonstop3h 19m

Toronto Pearson Intl

Wed 4/15

4:18 pm-6:13 pm

Nonstop3h 55m

$568

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Tue 4/14

11:59 pm-9:19 am

1 stop7h 20m

Toronto Pearson Intl

Wed 4/15

1:00 pm-7:40 pm

1 stop8h 40m

$569

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Thu 5/7

6:00 am-3:46 pm

1 stop7h 46m

Toronto Pearson Intl

Thu 5/14

10:45 am-12:40 pm

Nonstop3h 55m

$578

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Thu 4/23

1:02 pm-3:45 pm

2 stops24h 43m

Toronto Pearson Intl

Sat 4/25

4:55 pm-9:49 pm

1 stop30h 54m

$582

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Sun 6/7

6:00 am-3:46 pm

1 stop7h 46m

Toronto Pearson Intl

Sat 6/13

10:45 am-3:48 pm

1 stop7h 03m

$594

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Fri 9/11

6:45 am-1:25 pm

1 stop4h 40m

Toronto Pearson Intl

Mon 9/14

6:15 am-4:34 pm

1 stop12h 19m

$600

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/21

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 March 13, 2026.

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 68 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, March is the cheapest month in which you can book a flight from Denver to Niagara Falls (average of $163). Flying from Denver to Niagara Falls in April is currently the most expensive (average of $335). 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 March 24, 2026.

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.

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 March 24, 2026.
Get a feel of what it's like to fly with Delta,United Airlines, andWestJet 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.
Delta
7.9
Good
8,321 reviews

Overall

7.9

Entertainment

7.8

Food

7.2

Crew

8.5

Boarding

8.1

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,321 reviews
Delta
7.9
Good
8,321 reviews

Overall

7.9

Entertainment

7.8

Food

7.2

Crew

8.5

Boarding

8.1

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,470 reviews
Delta
7.9
Good
8,321 reviews

Overall

7.9

Entertainment

7.8

Food

7.2

Crew

8.5

Boarding

8.1

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
WestJet
7.2
Good
3,300 reviews
Delta
7.9
Good
8,321 reviews

Overall

7.9

Entertainment

7.8

Food

7.2

Crew

8.5

Boarding

8.1

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Air Canada
7.1
Good
10,836 reviews
Delta
7.9
Good
8,321 reviews

Overall

7.9

Entertainment

7.8

Food

7.2

Crew

8.5

Boarding

8.1

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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 4 different airlines.

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

    Airlines like United Airlines fly from Denver to Niagara Falls in about 3h 19m. The time it takes to get you to your destination is usually consistent. The distance from Denver to Niagara Falls is about 1312 mi. All flights are typically nonstop.

  • 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 $167 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 Air Canada (66%), United Airlines (66%) or Austrian Airlines (42%) 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 $941, our data shows the cheapest flight currently is $242. When looking at the most popular route, (Denver Intl - Toronto Pearson Intl), you can expect to pay $333 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, March is the cheapest month in which you can book a flight from Denver to Niagara Falls (average of $163). Flying from Denver to Niagara Falls in April is currently the most expensive (average of $335). 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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Alternative routes for Denver to Niagara Falls

See prices for flight routes from nearby airports that may be better suited for you.
Denver to Pearson Intl flights
Denver to Hamilton flights
Denver to Ottawa flights
Colorado Springs to Ottawa flights
Aspen to Ottawa flights
Denver to London flights

Top 4 airlines flying from Denver to Niagara Falls

Discover the top 4 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 March 24, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$197Average$549FlexibilityNo cancel feeOn-time67%
DeltaCheapest$198Average$482FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$218Average$555FlexibilityNo cancel feeOn-time69%
WestJetCheapest$258Average$358FlexibilityNo cancel feeOn-time60%

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