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Niagara Falls

$88+ 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 3/10. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — YYZ
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
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 68 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 January 29, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/27. 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 4/110:30 pm
DEN
-
YYZ
1 stop30h 13m
Multiple Airlines
Mon 4/68:00 pm
YYZ
-
DEN
1 stop9h 59m
Multiple Airlines
Deal found 1/27$260
This Kiwi.com deal was found by Cheapflights users on 1/28. 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 3/2510:30 pm
DEN
-
YYZ
1 stop30h 13m
Multiple Airlines
Tue 4/79:35 am
YYZ
-
DEN
1 stop16h 45m
Multiple Airlines
Deal found 1/28$261
This Kiwi.com deal was found by Cheapflights users on 1/27. 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 3/910:01 am
DEN
-
YYZ
1 stop18h 19m
Multiple Airlines
Wed 3/117:15 am
YYZ
-
DEN
1 stop17h 54m
Multiple Airlines
Deal found 1/27$264
This Kiwi.com deal was found by Cheapflights users on 1/27. 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 3/3110:30 pm
DEN
-
YYZ
2 stops19h 06m
Multiple Airlines
Mon 4/68:00 pm
YYZ
-
DEN
1 stop9h 59m
Multiple Airlines
Deal found 1/27$270
This Kiwi.com deal was found by Cheapflights users on 1/28. 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 3/3110:30 pm
DEN
-
YYZ
2 stops22h 41m
Multiple Airlines
Tue 4/79:35 am
YYZ
-
DEN
1 stop16h 45m
Multiple Airlines
Deal found 1/28$273
This Kiwi.com deal was found by Cheapflights users on 1/28. 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 3/97:00 am
DEN
-
YYZ
1 stop15h 14m
Multiple Airlines
Tue 3/101:30 pm
YYZ
-
DEN
2 stops16h 26m
Multiple Airlines
Deal found 1/28$280
This Kiwi.com deal was found by Cheapflights users on 1/28. 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 3/2510:30 pm
DEN
-
YYZ
1 stop30h 13m
Multiple Airlines
Wed 4/810:00 am
YYZ
-
DEN
1 stop16h 31m
Multiple Airlines
Deal found 1/28$281
This Kiwi.com deal was found by Cheapflights users on 1/27. 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 3/307:05 pm
DEN
-
YYZ
1 stop9h 38m
Multiple Airlines
Mon 4/68:00 pm
YYZ
-
DEN
1 stop9h 59m
Multiple Airlines
Deal found 1/27$283
This Kiwi.com deal was found by Cheapflights users on 1/28. 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 4/17:43 pm
DEN
-
YYZ
2 stops25h 37m
Multiple Airlines
Wed 4/810:00 am
YYZ
-
DEN
1 stop16h 31m
Multiple Airlines
Deal found 1/28$285

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 January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$260
(Kiwi.com)

One-way from

$88
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$546
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. 5% potential increase in price ($29 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 0% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 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 January 29, 2026.
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 2/26

9:30 am-6:43 am

2 stops19h 13m

Toronto Pearson Intl

Thu 3/5

8:35 pm-3:56 am

1 stop9h 21m

$303

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Thu 2/26

1:18 pm-6:43 am

1 stop15h 25m

Toronto Pearson Intl

Mon 3/2

3:40 pm-1:09 pm

2 stops23h 29m

$328

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Thu 4/30

6:00 am-8:00 pm

1 stop12h 00m

Toronto Pearson Intl

Tue 5/5

9:45 am-12:19 am

1 stop16h 34m

$331

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Wed 5/6

12:15 pm-12:10 am

1 stop9h 55m

Toronto Pearson Intl

Thu 5/7

3:50 pm-11:20 am

1 stop21h 30m

$358

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Thu 4/30

6:00 am-8:00 pm

1 stop12h 00m

Toronto Pearson Intl

Wed 5/6

9:40 am-7:49 pm

1 stop12h 09m

$359

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Tue 3/10

12:34 pm-3:35 pm

1 stop25h 01m

Toronto Pearson Intl

Mon 3/16

4:45 pm-12:14 pm

1 stop21h 29m

$394

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Thu 4/30

6:00 am-8:00 pm

1 stop12h 00m

Toronto Pearson Intl

Thu 5/7

6:00 am-12:58 pm

2 stops8h 58m

$408

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Sat 5/16

8:00 am-3:45 pm

2 stops29h 45m

Toronto Pearson Intl

Mon 5/18

4:55 pm-10:49 am

2 stops19h 54m

$465

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Fri 2/20

8:05 am-9:37 pm

1 stop11h 32m

Toronto Pearson Intl

Mon 2/23

2:50 pm-4:40 pm

Nonstop3h 50m

$466

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Fri 2/20

7:00 am-3:35 pm

1 stop30h 35m

Toronto Pearson Intl

Mon 2/23

4:45 pm-9:23 pm

1 stop30h 38m

$473

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Showing 1-10 of 20 results
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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 January 23, 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, June is the cheapest month in which you can book a flight from Denver to Niagara Falls (average of $135). Flying from Denver to Niagara Falls in December is currently the most expensive (average of $225). 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 January 29, 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.

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 January 29, 2026.

The most flights from DEN to NI4 are scheduled on a Monday (7 on average). You will have fewer flight options on Tuesday, 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 January 29, 2026.
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
9,215 reviews

Entertainment

7.1

Crew

8.1

Comfort

7.3

Overall

7.4

Boarding

7.7

Food

6.6

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
United Airlines
7.4
Good
9,215 reviews
United Airlines
7.4
Good
9,215 reviews

Entertainment

7.1

Crew

8.1

Comfort

7.3

Overall

7.4

Boarding

7.7

Food

6.6

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
WestJet
7.2
Good
3,253 reviews
United Airlines
7.4
Good
9,215 reviews

Entertainment

7.1

Crew

8.1

Comfort

7.3

Overall

7.4

Boarding

7.7

Food

6.6

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
Air Canada
7.1
Good
10,667 reviews
United Airlines
7.4
Good
9,215 reviews

Entertainment

7.1

Crew

8.1

Comfort

7.3

Overall

7.4

Boarding

7.7

Food

6.6

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.

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 WestJet fly from Denver to Niagara Falls in about 9h 55m. 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 (65%), Air Canada (62%) or United Airlines (62%) 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 $1,016, our data shows the cheapest flight currently is $198. When looking at the most popular route, (Denver Intl - Toronto Pearson Intl), you can expect to pay $264 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 $135). Flying from Denver to Niagara Falls in December is currently the most expensive (average of $225). 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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$198Average$527FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$218Average$542FlexibilityNo cancel feeOn-time69%
WestJetCheapest$258Average$297FlexibilityNo cancel feeOn-time60%

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