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Cheap flights from Niagara Falls to Denver from C$ 252

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 9/11. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — DEN
5 Aug — 12 Aug1
1 adult

Cheapflights Tip: The best prices from Niagara Falls to Denver Intl are usually found in April or September, booked 72 days in advance, depart on a Friday or Saturday and return on a Thursday

Cheap flight deals from Niagara Falls to Denver

Keep the following information in mind while searching for Niagara Falls to Denver flight deals. Data was last updated 31 July 2025.

Round-trip from

C$ 435

One-way from

C$ 251

Popular in

December

Cheapest in

April

Average price

C$ 621
WestJet
  • WestJet
  • 21/9-23/9
  • 2 total stops
  • 23h 36m total
  • Niagara Falls to Denver
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WestJet
  • WestJet
  • 10/9
  • 1 total stop
  • 20h 24m total
  • Niagara Falls to Denver
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (C$ 70 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
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Find flight deals from Niagara Falls to Denver

Cheapest flights from Niagara Falls to Denver
Explore the most affordable flight options available from Niagara Falls to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 July 2025.

Sun 21/910:25 p.m.YYZ - DEN
1 stop14h 59mWestJet
Tue 23/912:15 p.m.DEN - YYZ
1 stop8h 37mWestJet
Deal found 30/7C$ 435
Thu 21/89:44 a.m.YYZ - DEN
Nonstop3h 43mMultiple Airlines
Thu 28/87:45 a.m.DEN - YYZ
Nonstop3h 13mMultiple Airlines
Deal found 29/7C$ 441
Tue 26/88:00 a.m.YYZ - DEN
1 stop10h 40mAir Canada
Wed 27/811:35 a.m.DEN - YYZ
1 stop9h 00mAir Canada
Deal found 30/7C$ 443
Sat 20/96:30 a.m.YYZ - DEN
1 stop5h 04mDelta
Thu 25/912:45 a.m.DEN - YYZ
1 stop8h 35mDelta
Deal found 29/7C$ 447
Wed 20/87:00 a.m.YYZ - DEN
2 stops10h 00mUnited Airlines
Sat 23/82:45 p.m.DEN - YYZ
1 stop7h 13mUnited Airlines
Deal found 28/7C$ 457
Fri 5/911:44 a.m.YYZ - DEN
2 stops7h 55mAmerican Airlines
Mon 8/911:59 p.m.DEN - YYZ
1 stop13h 00mAmerican Airlines
Deal found 29/7C$ 497

Cheapflights Fare Finder

 
Customize your flight search to find flights from Niagara Falls to Denver 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 629,999 searches. Data last updated 31 July 2025.
Use the filters below to find and compare flights from Niagara Falls to Denver that are best for you.

Fly from

Niagara Falls

Fly to

Denver

Route

Depart

Return

Price

TorontoDenver

YYZ - DEN

YYZDEN

Toronto Pearson Intl

Sun 21/9

10:25 p.m.-11:24 a.m.

1 stop14h 59m

Denver Intl

Tue 23/9

12:15 p.m.-10:52 p.m.

1 stop8h 37m

C$ 435

TorontoDenver

YYZ - DEN

YYZDEN

Toronto Pearson Intl

Thu 21/8

9:44 a.m.-11:27 a.m.

Nonstop3h 43m

Denver Intl

Thu 28/8

7:45 a.m.-12:58 p.m.

Nonstop3h 13m

C$ 441

TorontoDenver

YYZ - DEN

YYZDEN

Toronto Pearson Intl

Tue 26/8

8:00 a.m.-4:40 p.m.

1 stop10h 40m

Denver Intl

Wed 27/8

11:35 a.m.-10:35 p.m.

1 stop9h 00m

C$ 443

TorontoDenver

YYZ - DEN

YYZDEN

Toronto Pearson Intl

Sat 20/9

6:30 a.m.-9:34 a.m.

1 stop5h 04m

Denver Intl

Thu 25/9

12:45 a.m.-11:20 a.m.

1 stop8h 35m

C$ 447

TorontoDenver

YYZ - DEN

YYZDEN

Toronto Pearson Intl

Wed 20/8

7:00 a.m.-3:00 p.m.

2 stops10h 00m

Denver Intl

Sat 23/8

2:45 p.m.-11:58 p.m.

1 stop7h 13m

C$ 457

TorontoDenver

YYZ - DEN

YYZDEN

Toronto Pearson Intl

Fri 5/9

11:44 a.m.-5:39 p.m.

2 stops7h 55m

Denver Intl

Mon 8/9

11:59 p.m.-2:59 p.m.

1 stop13h 00m

C$ 497

TorontoDenver

YYZ - DEN

YYZDEN

Toronto Pearson Intl

Sun 9/11

9:45 a.m.-3:59 a.m.

1 stop20h 14m

C$ 252

TorontoDenver

YYZ - DEN

YYZDEN

Toronto Pearson Intl

Fri 22/8

5:19 p.m.-10:15 p.m.

1 stop6h 56m

C$ 255

TorontoDenver

YYZ - DEN

YYZDEN

Toronto Pearson Intl

Fri 22/8

12:00 p.m.-6:20 p.m.

1 stop8h 20m

C$ 259

TorontoDenver

YYZ - DEN

YYZDEN

Toronto Pearson Intl

Sun 24/8

9:44 a.m.-11:27 a.m.

Nonstop3h 43m

C$ 263

Flights are sorted by cheapest round-trip flights first.

Deals found on 30/7

Showing 1-10 of 13 results
1
2

Best time to book a flight from Niagara Falls to Denver

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

How far ahead should I book a flight from Niagara Falls to Denver?

Use this chart to determine the optimal time to book a round-trip flight from Niagara Falls to Denver. Price data was last updated on 25 July 2025.

To ensure you get the cheapest price possible for a flight from Niagara Falls to Denver, you should look to book at least 72 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, August is the cheapest month in which you can book a flight from Niagara Falls to Denver (average of C$ 320). Flying from Niagara Falls to Denver in December is currently the most expensive (average of C$ 484). 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 NI4 to DEN?

Find hourly flight availability from Niagara Falls to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 31 July 2025.

When flying from Niagara Falls to Denver, 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 Niagara Falls to Denver

Explore weekly flight availability from Niagara Falls to Denver. 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 31 July 2025.

The most flights from NI4 to DEN are scheduled on a Monday (10 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (9 on average).

Reviews of airlines servicing Denver

Get insights into the airlines that provide service to Denver. 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 Denver. Reviews last updated 31 July 2025.
Read through reviews of airlines operating flights from Niagara Falls to Denver, such as Delta,United Airlines, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,980 reviews
Check prices

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Crew

8.5

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Delta
8.0
Very good
7,980 reviews
Delta
8.0
Very good
7,980 reviews
Check prices

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Crew

8.5

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
United Airlines
7.4
Good
8,902 reviews
Delta
8.0
Very good
7,980 reviews
Check prices

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Crew

8.5

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,980 reviews
Check prices

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Crew

8.5

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
WestJet
7.2
Good
2,977 reviews
Delta
8.0
Very good
7,980 reviews
Check prices

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Crew

8.5

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Air Canada
7.1
Good
9,842 reviews
Delta
8.0
Very good
7,980 reviews
Check prices

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Crew

8.5

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.

Related info for your journey

Find useful and relevant information for your journey from Niagara Falls to Denver. 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 into for flights to Denver from Niagara Falls?

    Located just 29.7 km from the city centre, Denver Intl is the airport most travellers will use when flying to Denver from Niagara Falls. Booking flights from Niagara Falls to Denver Intl (DEN) should be relatively easy as there are 9 daily inbound flights from Niagara Falls from 4 different airlines.

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

    For one-way options, check prices for WestJet. According to our data, you can fly for as low as C$ 251. Users have also found prices from C$ 255 and C$ 259 on American Airlines and Air Canada, respectively.

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

    Consider Air Canada (60%), United Airlines (60%) or Brussels Airlines (31%) when booking your flight. These represent the most reliable airlines when flying from Niagara Falls to Denver.

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

    On average you can expect to pay C$ 2,048 for a flight from Niagara Falls to Denver. The cheapest flight overall is C$ 229 while the most popular route, (Toronto Pearson Intl - Denver Intl) is currently priced at C$ 418.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Niagara Falls to Denver (average of C$ 320). Flying from Niagara Falls to Denver in December is currently the most expensive (average of C$ 484). 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

Travelling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Golden
Westminster
Thornton

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Top 4 airlines flying from Niagara Falls to Denver

Discover the top 4 airlines that operate flights from Niagara Falls to Denver. 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 629,999 searches. Data last updated 31 July 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapestC$ 211AverageC$ 340FlexibilityNo cancel feeOn-time62%
Search Frontier flights
WestJetCheapestC$ 259AverageC$ 454FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air CanadaCheapestC$ 457AverageC$ 702FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 518AverageC$ 730FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Niagara Falls to Denver?

When you search for this flight from Niagara Falls to Denver, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Niagara Falls to Denver?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Niagara Falls to Denver for you. Better yet — we are completely free to use.

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Yes! Cheapflights helps users easily find flights from Niagara Falls to Denver with no change fees.

Can Cheapflights notify me if prices for flights from Niagara Falls to Denver become cheaper?

Yes! Start tracking prices for Niagara Falls to Denver flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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