HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Niagara Falls

$111+ 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 12/17. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — YYZ
Dec 13 — Dec 201
Sat 12/13
Sat 12/20
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Colorado to Niagara Falls with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap 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 November 13, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$336
(American Airlines)

One-way from

$111
(Trip.com)

Popular in

November

Cheapest in

March

Average price

$683
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
Highest demand for flights based on searches. 15% potential increase in price ($85 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Find 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 November 13, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/11. 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 12/111:15 pmDEN - YYZ
2 stops34h 28mMultiple Airlines
Fri 12/59:45 amYYZ - DEN
1 stop15h 11mMultiple Airlines
Deal found 11/11$338
This Kiwi.com deal was found by Cheapflights users on 11/13. 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 12/176:30 amDEN - YYZ
1 stop11h 25mMultiple Airlines
Sat 1/37:55 pmYYZ - DEN
1 stop10h 03mMultiple Airlines
Deal found 11/13$344
This Kiwi.com deal was found by Cheapflights users on 11/12. 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 12/226:21 pmDEN - YYZ
1 stop10h 26mMultiple Airlines
Mon 1/58:00 pmYYZ - DEN
1 stop9h 58mMultiple Airlines
Deal found 11/12$345
This Kiwi.com deal was found by Cheapflights users on 11/13. 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.
Sat 12/206:21 pmDEN - YYZ
1 stop9h 59mMultiple Airlines
Wed 1/77:15 amYYZ - DEN
1 stop12h 18mMultiple Airlines
Deal found 11/13$346
This Kiwi.com deal was found by Cheapflights users on 11/12. 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 12/1910:29 pmDEN - YYZ
2 stops29h 51mMultiple Airlines
Mon 1/58:00 pmYYZ - DEN
1 stop9h 58mMultiple Airlines
Deal found 11/12$348
This Kiwi.com deal was found by Cheapflights users on 11/13. 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.
Thu 12/189:59 amDEN - YYZ
1 stop7h 56mMultiple Airlines
Sun 1/48:00 pmYYZ - DEN
1 stop9h 58mMultiple Airlines
Deal found 11/13$351
This Kiwi.com deal was found by Cheapflights users on 11/12. 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 12/186:00 amDEN - YYZ
2 stops11h 55mMultiple Airlines
Mon 1/58:00 pmYYZ - DEN
1 stop9h 58mMultiple Airlines
Deal found 11/12$352
This Kiwi.com deal was found by Cheapflights users on 11/13. 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.
Sat 12/207:00 amDEN - YYZ
1 stop10h 55mMultiple Airlines
Sun 1/48:00 pmYYZ - DEN
1 stop9h 58mMultiple Airlines
Deal found 11/13$353
This Kiwi.com deal was found by Cheapflights users on 11/13. 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.
Thu 12/189:59 amDEN - YYZ
1 stop7h 56mMultiple Airlines
Tue 1/67:15 amYYZ - DEN
1 stop10h 25mMultiple Airlines
Deal found 11/13$357
This American Airlines deal was found by Cheapflights users on 11/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/612:38 pmCOS - YYZ
1 stop20h 18mAmerican Airlines
Sun 12/145:11 pmYYZ - COS
1 stop18h 36mAmerican Airlines
Deal found 11/13$501
This Delta deal was found by Cheapflights users on 11/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/68:10 amCOS - YYZ
2 stops13h 17mDelta
Sun 12/146:05 amYYZ - COS
2 stops8h 31mDelta
Deal found 11/13$519
This United Airlines deal was found by Cheapflights users on 11/11. 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.
Sat 12/271:48 pmCOS - YYZ
1 stop6h 53mUnited Airlines
Sat 1/38:30 amYYZ - COS
1 stop12h 25mUnited Airlines
Deal found 11/11$644

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 November 13, 2025.
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

Mon 1/5

8:22 pm-3:35 pm

1 stop17h 13m

Toronto Pearson Intl

Fri 1/9

4:45 pm-11:35 pm

1 stop32h 50m

$373

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Wed 12/17

9:33 am-7:55 pm

1 stop8h 22m

Toronto Pearson Intl

Fri 12/19

8:30 am-12:25 am

2 stops17h 55m

$388

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Tue 12/2

6:45 am-3:35 pm

1 stop30h 50m

Toronto Pearson Intl

Fri 12/5

4:45 pm-11:59 pm

1 stop9h 14m

$390

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Fri 12/5

8:20 pm-3:35 pm

1 stop17h 15m

Toronto Pearson Intl

Mon 12/8

4:45 pm-11:59 pm

1 stop9h 14m

$397

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Wed 1/7

8:04 am-3:35 pm

2 stops29h 31m

Toronto Pearson Intl

Mon 1/12

4:45 pm-10:53 am

2 stops20h 08m

$408

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Tue 1/13

10:45 am-9:44 pm

2 stops8h 59m

Toronto Pearson Intl

Wed 1/14

11:30 am-11:16 pm

1 stop13h 46m

$440

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Thu 2/26

11:38 am-3:35 pm

2 stops25h 57m

Toronto Pearson Intl

Sun 3/1

4:45 pm-10:42 am

2 stops19h 57m

$449

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Wed 2/11

8:04 am-3:35 pm

2 stops29h 31m

Toronto Pearson Intl

Sat 2/14

4:45 pm-10:42 am

2 stops19h 57m

$456

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Sun 3/1

11:38 am-3:35 pm

2 stops25h 57m

Toronto Pearson Intl

Wed 3/4

4:45 pm-10:42 am

2 stops19h 57m

$473

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Tue 3/10

6:15 am-6:34 pm

1 stop10h 19m

Toronto Pearson Intl

Wed 3/11

2:15 pm-9:37 pm

1 stop9h 22m

$474

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/12

Showing 1-10 of 40 results
1
2
3
4

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 $129). Flying from Colorado to Niagara Falls in January is currently the most expensive (average of $246). 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 November 13, 2025.

When flying from Colorado to Niagara Falls, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 33% versus a flight at noon.

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 November 13, 2025.

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

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

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 17h 13m. The distance between Colorado and Niagara Falls is about 1312 mi. This flight may include one or multiple stops.

  • 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: Air Canada (81%), United Airlines (80%), Austrian Airlines( 78%).

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

    The cheapest flight price from Colorado to Niagara Falls is $225. On average you can expect to pay $548. The most popular route, (Denver Intl - Toronto Pearson Intl), can usually be booked for $233.

  • 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 $129). Flying from Colorado to Niagara Falls in January is currently the most expensive (average of $246). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Colorado to Niagara Falls

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Pearson Intl flights
LaGuardia to Pearson Intl flights
Newark to Pearson Intl flights
Newark to Toronto Island flights
John F Kennedy Intl to Pierre Elliott Trudeau Intl flights
Newark to Pierre Elliott Trudeau Intl flights
LaGuardia to Pierre Elliott Trudeau Intl flights
Los Angeles to Pearson Intl flights
San Francisco to Pearson Intl flights
Boston to Pearson Intl flights
Dulles Intl to Pearson Intl flights
O'Hare Intl to Pearson Intl flights
Reagan-National to Pearson Intl flights
Dulles Intl to Pierre Elliott Trudeau Intl flights
Reagan-National to Pierre Elliott Trudeau Intl flights
Seattle to Pearson Intl flights
Dallas/Fort Worth to Pearson Intl flights
Hobby to Pearson Intl flights
Fort Lauderdale to Pierre Elliott Trudeau Intl flights
Boston to Toronto Island flights
O'Hare Intl to Pierre Elliott Trudeau Intl flights
Boston to Pierre Elliott Trudeau Intl flights
Los Angeles to Pierre Elliott Trudeau Intl flights
Dallas/Fort Worth to Pierre Elliott Trudeau Intl flights
Atlanta to Pearson Intl flights
Dulles Intl to Toronto Island flights
Minneapolis to Pearson Intl flights
Sky Harbor Intl to Pearson Intl flights
Fort Lauderdale to Pearson Intl flights
George Bush Intcntl to Pearson Intl flights
Miami to Pierre Elliott Trudeau Intl flights
Nashville to Pearson Intl flights
San Francisco to Pierre Elliott Trudeau Intl flights
Minneapolis to Pierre Elliott Trudeau Intl flights
San Diego to Pearson Intl flights
John F Kennedy Intl to Toronto Island flights
Baltimore to Pearson Intl flights
Philadelphia to Pearson Intl flights
Orlando to Pearson Intl flights
Philadelphia to Pierre Elliott Trudeau Intl flights
Midway to Toronto Island flights
Raleigh to Pearson Intl flights
Baltimore to Pierre Elliott Trudeau Intl flights
Orlando to Pierre Elliott Trudeau Intl flights
Tampa to Pearson Intl flights
Atlanta to Pierre Elliott Trudeau Intl flights
Charlotte to Pearson Intl flights
Miami to Pearson Intl flights
Newark to Ottawa flights
LaGuardia to Toronto Island flights

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 November 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$144Average$176FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$180Average$532FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$221Average$545FlexibilityNo cancel feeOn-time67%
WestJetCheapest$258Average$297FlexibilityNo cancel feeOn-time60%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.