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Cheap flights from Niagara Falls to Denver from C$ 190

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 6/10. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — DEN
15 Oct — 22 Oct1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from Niagara Falls to Denver Intl are usually found in August or October, booked 87 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 15 September 2025.

Round-trip from

C$ 428

One-way from

C$ 190

Popular in

December

Cheapest in

August

Average price

C$ 631
14/10-18/10
  • 14/10-18/10
  • 2 total stops
  • 25h 08m total
  • Niagara Falls to Denver
Search Deals
6/10
  • 6/10
  • 1 total stop
  • 9h 38m total
  • Niagara Falls to Denver
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (C$ 67 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 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 15 September 2025.

Tue 14/107:15 a.m.YYZ - DEN
1 stop18h 01mMultiple Airlines
Sat 18/1012:00 p.m.DEN - YYZ
1 stop7h 07mMultiple Airlines
Deal found 14/9C$ 428
Sat 4/109:00 p.m.YYZ - DEN
2 stops16h 24mMultiple Airlines
Mon 6/1012:15 p.m.DEN - YYZ
2 stops17h 00mMultiple Airlines
Deal found 15/9C$ 429
Thu 16/109:00 a.m.YYZ - DEN
1 stop10h 18mAir Canada
Mon 20/106:05 p.m.DEN - YYZ
1 stop10h 55mAir Canada
Deal found 13/9C$ 432
Wed 8/102:00 p.m.YYZ - DEN
2 stops22h 18mMultiple Airlines
Sat 11/108:00 a.m.DEN - YYZ
1 stop9h 45mMultiple Airlines
Deal found 15/9C$ 433
Sat 11/103:00 p.m.YYZ - DEN
2 stops14h 59mMultiple Airlines
Sun 12/1012:15 p.m.DEN - YYZ
1 stop10h 07mMultiple Airlines
Deal found 13/9C$ 435
Mon 6/104:00 p.m.YYZ - DEN
1 stop9h 38mMultiple Airlines
Thu 9/106:00 a.m.DEN - YYZ
1 stop13h 50mMultiple Airlines
Deal found 14/9C$ 436
Fri 31/107:15 a.m.YYZ - DEN
2 stops16h 15mMultiple Airlines
Sat 1/1112:16 a.m.DEN - YYZ
1 stop13h 04mMultiple Airlines
Deal found 14/9C$ 437
Fri 31/107:55 p.m.YYZ - DEN
1 stop17h 15mMultiple Airlines
Mon 3/1112:16 a.m.DEN - YYZ
1 stop11h 49mMultiple Airlines
Deal found 15/9C$ 439
Sun 5/1010:25 p.m.YYZ - DEN
1 stop14h 59mMultiple Airlines
Thu 9/108:54 p.m.DEN - YYZ
2 stops25h 37mMultiple Airlines
Deal found 15/9C$ 440
Sat 4/109:15 p.m.YYZ - DEN
2 stops16h 09mMultiple Airlines
Mon 6/1012:36 a.m.DEN - YYZ
1 stop11h 16mMultiple Airlines
Deal found 15/9C$ 443
Tue 14/106:15 p.m.YYZ - DEN
1 stop8h 53mMultiple Airlines
Mon 20/106:00 a.m.DEN - YYZ
2 stops16h 31mMultiple Airlines
Deal found 13/9C$ 444
Mon 22/93:00 p.m.YYZ - DEN
2 stops15h 00mMultiple Airlines
Thu 2/107:17 p.m.DEN - YYZ
1 stop9h 03mMultiple Airlines
Deal found 13/9C$ 446

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 15 September 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

Wed 15/10

8:00 a.m.-5:18 p.m.

1 stop11h 18m

Denver Intl

Sat 18/10

1:25 p.m.-6:35 p.m.

Nonstop3h 10m

C$ 447

TorontoDenver

YYZ - DEN

YYZDEN

Toronto Pearson Intl

Sat 18/10

9:00 a.m.-5:18 p.m.

1 stop10h 18m

Denver Intl

Sat 25/10

1:25 p.m.-6:35 p.m.

Nonstop3h 10m

C$ 447

TorontoDenver

YYZ - DEN

YYZDEN

Toronto Pearson Intl

Wed 15/10

1:20 p.m.-9:41 p.m.

1 stop10h 21m

Denver Intl

Thu 23/10

7:10 a.m.-5:23 p.m.

1 stop8h 13m

C$ 453

TorontoDenver

YYZ - DEN

YYZDEN

Toronto Pearson Intl

Wed 8/10

7:55 a.m.-4:47 p.m.

1 stop10h 52m

Denver Intl

Mon 13/10

12:50 a.m.-10:42 a.m.

1 stop7h 52m

C$ 453

TorontoDenver

YYZ - DEN

YYZDEN

Toronto Pearson Intl

Sun 12/10

5:50 p.m.-10:25 p.m.

1 stop6h 35m

Denver Intl

Thu 16/10

12:55 a.m.-8:55 a.m.

1 stop6h 00m

C$ 453

TorontoDenver

YYZ - DEN

YYZDEN

Toronto Pearson Intl

Sat 4/10

10:12 a.m.-2:00 p.m.

1 stop5h 48m

Denver Intl

Sun 5/10

12:55 a.m.-8:55 a.m.

1 stop6h 00m

C$ 455

TorontoDenver

YYZ - DEN

YYZDEN

Toronto Pearson Intl

Sat 27/9

11:36 a.m.-5:13 p.m.

1 stop7h 37m

Denver Intl

Thu 2/10

12:59 a.m.-10:21 a.m.

1 stop7h 22m

C$ 455

TorontoDenver

YYZ - DEN

YYZDEN

Toronto Pearson Intl

Sat 11/10

1:20 p.m.-8:15 p.m.

1 stop8h 55m

Denver Intl

Fri 17/10

12:55 a.m.-8:55 a.m.

1 stop6h 00m

C$ 455

TorontoDenver

YYZ - DEN

YYZDEN

Toronto Pearson Intl

Sat 11/10

1:20 p.m.-9:41 p.m.

1 stop10h 21m

Denver Intl

Mon 20/10

12:55 a.m.-11:20 a.m.

1 stop8h 25m

C$ 455

TorontoDenver

YYZ - DEN

YYZDEN

Toronto Pearson Intl

Thu 2/10

7:55 a.m.-4:41 p.m.

1 stop10h 46m

Denver Intl

Sun 5/10

12:55 a.m.-8:55 a.m.

1 stop6h 00m

C$ 455

Flights are sorted by cheapest round-trip flights first.

Deals found on 13/9

Showing 1-10 of 21 results
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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 12 September 2025.

To ensure you get the cheapest price possible for a flight from Niagara Falls to Denver, you should look to book at least 87 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 15 September 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 15 September 2025.

The most flights from NI4 to DEN are scheduled on a Monday (11 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (10 on average).

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

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 15 September 2025.
Read through reviews of airlines operating flights from Niagara Falls to Denver, such as United Airlines,WestJet, andAir Canada. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,929 reviews
Check prices

Boarding

7.7

Crew

8.1

Entertainment

7.1

Comfort

7.3

Overall

7.4

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

YVR - SFO

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.
United Airlines
7.4
Good
8,929 reviews
United Airlines
7.4
Good
8,929 reviews
Check prices

Boarding

7.7

Crew

8.1

Entertainment

7.1

Comfort

7.3

Overall

7.4

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

YVR - SFO

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.
WestJet
7.2
Good
3,091 reviews
United Airlines
7.4
Good
8,929 reviews
Check prices

Boarding

7.7

Crew

8.1

Entertainment

7.1

Comfort

7.3

Overall

7.4

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

YVR - SFO

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.
Air Canada
7.1
Good
10,000 reviews
United Airlines
7.4
Good
8,929 reviews
Check prices

Boarding

7.7

Crew

8.1

Entertainment

7.1

Comfort

7.3

Overall

7.4

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

YVR - SFO

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.

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 10 daily inbound flights from Niagara Falls from 3 different airlines.

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

    There are many flights that can get you from Niagara Falls to Denver in 10h 21m. Fly via Air Canada or Delta to get the fastest option. Airlines will cover a distance of 2111 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    Consider Air Canada (57%), United Airlines (57%) or Austrian Airlines (27%) 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$ 1,964 for a flight from Niagara Falls to Denver. The cheapest flight overall is C$ 304 while the most popular route, (Toronto Pearson Intl - Denver Intl) is currently priced at C$ 316.

  • 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 3 airlines flying from Niagara Falls to Denver

Discover the top 3 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 15 September 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 260AverageC$ 437FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air CanadaCheapestC$ 472AverageC$ 692FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 520AverageC$ 732FlexibilityNo 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.

Can Cheapflights find flights from Niagara Falls to Denver with no change fees?

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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