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Niagara Falls

$105+ Cheap flights from Colorado 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 3/9. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — YYZ
Feb 24 — Mar 31
Tue 2/24
Tue 3/3
1 adult, Economy
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Cheap flight deals from Colorado to Niagara Falls

Cheapest flights from Colorado to Niagara Falls
Explore the most affordable flight options available from Colorado to Niagara Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 25, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/23. 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 3/2510:30 pm
DEN
-
YYZ
1 stop30h 13m
Multiple Airlines
Wed 4/19:35 am
YYZ
-
DEN
1 stop16h 45m
Multiple Airlines
Deal found 1/23$258
This Kiwi.com deal was found by Cheapflights users on 1/24. 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 3/26:21 pm
DEN
-
YYZ
1 stop10h 22m
Multiple Airlines
Wed 3/47:15 am
YYZ
-
DEN
1 stop12h 20m
Multiple Airlines
Deal found 1/24$274
This Kiwi.com deal was found by Cheapflights users on 1/23. 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 2/276:21 pm
DEN
-
YYZ
1 stop9h 59m
Multiple Airlines
Sun 3/17:55 pm
YYZ
-
DEN
1 stop10h 01m
Multiple Airlines
Deal found 1/23$281
This Kiwi.com deal was found by Cheapflights users on 1/24. 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 2/236:21 pm
DEN
-
YYZ
1 stop10h 22m
Multiple Airlines
Mon 3/23:40 pm
YYZ
-
DEN
2 stops22h 16m
Multiple Airlines
Deal found 1/24$284
This Kiwi.com deal was found by Cheapflights users on 1/24. 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 3/912:28 am
DEN
-
YYZ
1 stop18h 53m
Multiple Airlines
Tue 3/171:30 pm
YYZ
-
DEN
2 stops16h 26m
Multiple Airlines
Deal found 1/24$290
This Kiwi.com deal was found by Cheapflights users on 1/25. 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 2/1010:29 pm
DEN
-
YYZ
1 stop19h 26m
Multiple Airlines
Tue 3/1010:15 am
YYZ
-
DEN
2 stops16h 04m
Multiple Airlines
Deal found 1/25$300
This Kiwi.com deal was found by Cheapflights users on 1/24. 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 2/147:00 am
DEN
-
YYZ
1 stop13h 39m
Multiple Airlines
Wed 2/181:30 pm
YYZ
-
DEN
2 stops16h 26m
Multiple Airlines
Deal found 1/24$326
This American Airlines deal was found by Cheapflights users on 1/23. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/912:30 pm
COS
-
YYZ
1 stop20h 26m
American Airlines
Mon 3/166:10 am
YYZ
-
COS
1 stop8h 38m
American Airlines
Deal found 1/23$437
This American Airlines deal was found by Cheapflights users on 1/24. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/1012:29 pm
COS
-
YYZ
1 stop20h 27m
American Airlines
Tue 3/176:10 am
YYZ
-
COS
1 stop16h 27m
American Airlines
Deal found 1/24$446
This American Airlines deal was found by Cheapflights users on 1/24. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/211:39 pm
COS
-
YYZ
1 stop7h 00m
American Airlines
Sat 2/286:17 pm
YYZ
-
COS
1 stop19h 43m
American Airlines
Deal found 1/24$466
This United Airlines deal was found by Cheapflights users on 1/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/151:33 pm
COS
-
YYZ
1 stop5h 59m
United Airlines
Sun 4/1910:45 am
YYZ
-
COS
1 stop5h 45m
United Airlines
Deal found 1/23$479
This United Airlines deal was found by Cheapflights users on 1/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/61:25 pm
COS
-
YYZ
2 stops8h 21m
United Airlines
Sun 2/86:50 am
YYZ
-
COS
1 stop6h 12m
United Airlines
Deal found 1/22$525

Find flight deals from Colorado to Niagara Falls

Keep the following information in mind while searching for Colorado to Niagara Falls flight deals. Data was last updated January 25, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$258
(Kiwi.com)

One-way from

$105
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$317
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 Colorado to Niagara Falls
Search Deals
One-way flight from Colorado to Niagara Falls
Search Deals
High demand for flights, 1% potential price rise
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Colorado 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 25, 2026.
Use the filters below to find and compare flights from Colorado to Niagara Falls that are best for you.

Fly from

Colorado

Fly to

Niagara Falls

Route

Depart

Return

Price

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Tue 2/10

10:29 pm-7:55 pm

1 stop19h 26m

Toronto Pearson Intl

Tue 3/10

10:15 am-12:19 am

2 stops16h 04m

$300

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Sat 2/14

7:00 am-10:39 pm

1 stop13h 39m

Toronto Pearson Intl

Wed 2/18

1:30 pm-3:56 am

2 stops16h 26m

$326

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Fri 2/6

6:37 pm-6:43 am

1 stop10h 06m

Toronto Pearson Intl

Mon 2/9

3:40 pm-1:09 pm

2 stops23h 29m

$341

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Wed 2/4

7:30 am-2:20 pm

2 stops28h 50m

Toronto Pearson Intl

Mon 2/9

8:00 pm-3:56 am

1 stop9h 56m

$357

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Thu 4/23

4:36 pm-6:43 am

2 stops12h 07m

Toronto Pearson Intl

Sun 4/26

7:55 pm-9:05 am

1 stop15h 10m

$366

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Tue 3/10

7:00 am-3:35 pm

1 stop30h 35m

Toronto Pearson Intl

Mon 3/16

4:45 pm-11:59 pm

1 stop9h 14m

$374

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Fri 2/20

9:27 am-6:10 am

2 stops18h 43m

Toronto Pearson Intl

Tue 2/24

10:00 am-9:49 am

1 stop25h 49m

$375

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Wed 3/11

11:59 pm-2:20 pm

1 stop12h 21m

Toronto Pearson Intl

Wed 3/18

10:00 am-12:19 am

2 stops16h 19m

$381

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Sat 5/16

7:15 am-12:22 am

2 stops15h 07m

Toronto Pearson Intl

Sat 5/23

8:00 pm-11:25 am

1 stop17h 25m

$384

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Thu 2/19

7:52 pm-3:35 pm

1 stop17h 43m

Toronto Pearson Intl

Tue 2/24

10:00 am-9:49 am

1 stop25h 49m

$388

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/24

Showing 1-10 of 35 results
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Best time to book a flight from Colorado to Niagara Falls

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

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

Currently, June is the cheapest month in which you can book a flight from Colorado to Niagara Falls (average of $135). Flying from Colorado 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 CO to NI4?

Find hourly flight availability from Colorado 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 25, 2026.

When flying from Colorado 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 Colorado to Niagara Falls

Explore weekly flight availability from Colorado 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 25, 2026.

The most flights from USCO to NI4 are scheduled on a Monday (6 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (3 on average).

Related info for your journey

Find useful and relevant information for your journey from Colorado to Niagara Falls. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    Departing from Colorado to Niagara Falls will take you 5h 59m. The distance between Colorado and Niagara Falls is about 1339 mi. This flight may include one or multiple stops.

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

    $175 is the cheapest one-way deal found within the past few days, from Air Canada. You may also be able to find cheap deals on United Airlines and Delta, with prices starting from $193 and $218, respectively.

  • What are the most popular routes from Colorado to Niagara Falls?

    While some choose either Colorado Springs - Toronto Pearson Intl or Vail Eagle County - Toronto Pearson Intl, Denver Intl - Toronto Pearson Intl is the most popular route from Colorado to Niagara Falls.

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

    Before booking your flight to Niagara Falls from Colorado, check out the most reliable airlines to get you to your destination on time: Austrian Airlines (65%), Air Canada (62%), United Airlines( 62%).

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

    The cheapest flight price from Colorado to Niagara Falls is $198. On average you can expect to pay $847. The most popular route, (Denver Intl - Toronto Pearson Intl), can usually be booked for $258.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Colorado 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 Colorado to Niagara Falls?

    Currently, June is the cheapest month in which you can book a flight from Colorado to Niagara Falls (average of $135). Flying from Colorado 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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Alternative routes for Colorado to Niagara Falls

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Colorado to Niagara Falls

Discover the top 4 airlines that operate flights from Colorado 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 25, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$144Average$172FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$177Average$528FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$198Average$527FlexibilityNo cancel feeOn-time67%
WestJetCheapest$258Average$297FlexibilityNo cancel feeOn-time60%

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