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Cheap flights from Niagara Falls, ON to Denver from C$ 198

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 13/4. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — DEN
9 Apr — 16 Apr1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Niagara Falls to Denver Intl are usually found in August or October, booked 46 days in advance, depart on a Friday or Wednesday and return on a Monday

Cheap flight deals from Niagara Falls to Denver

Enter your travel dates to find the best prices.

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 10 March 2026.

Thu 23/42:50 p.m.
YYZ
-
DEN
Nonstop3h 48m
Air Canada
Thu 30/48:45 a.m.
DEN
-
YYZ
1 stop8h 47m
Air Canada
Deal found 9/3C$ 506
Sun 12/48:20 p.m.
YYZ
-
DEN
1 stop28h 49m
Multiple Airlines
Sat 18/49:30 p.m.
DEN
-
YYZ
2 stops20h 06m
Multiple Airlines
Deal found 6/3C$ 509
Wed 22/410:00 a.m.
YYZ
-
DEN
1 stop11h 49m
Multiple Airlines
Tue 1/92:47 p.m.
DEN
-
YYZ
1 stop29h 08m
Multiple Airlines
Deal found 5/3C$ 512
Thu 7/51:30 p.m.
YYZ
-
DEN
2 stops32h 41m
Multiple Airlines
Thu 14/59:00 p.m.
DEN
-
YYZ
1 stop12h 47m
Multiple Airlines
Deal found 10/3C$ 513
Sun 5/48:00 p.m.
YYZ
-
DEN
1 stop9h 59m
Multiple Airlines
Sun 12/410:30 p.m.
DEN
-
YYZ
1 stop29h 50m
Multiple Airlines
Deal found 6/3C$ 516
Fri 10/47:55 p.m.
YYZ
-
DEN
1 stop10h 04m
Multiple Airlines
Tue 14/49:30 p.m.
DEN
-
YYZ
1 stop21h 52m
Multiple Airlines
Deal found 10/3C$ 517
Fri 3/47:55 p.m.
YYZ
-
DEN
1 stop10h 04m
Multiple Airlines
Sun 5/49:25 a.m.
DEN
-
YYZ
2 stops18h 48m
Multiple Airlines
Deal found 9/3C$ 518
Tue 5/59:30 a.m.
YYZ
-
DEN
1 stop8h 19m
Multiple Airlines
Tue 5/511:59 p.m.
DEN
-
YYZ
2 stops20h 06m
Multiple Airlines
Deal found 9/3C$ 521
Thu 23/42:20 p.m.
YYZ
-
DEN
1 stop10h 39m
Multiple Airlines
Sun 26/410:29 p.m.
DEN
-
YYZ
1 stop29h 51m
Multiple Airlines
Deal found 6/3C$ 522
Fri 10/47:55 p.m.
YYZ
-
DEN
1 stop10h 04m
Multiple Airlines
Mon 13/45:53 p.m.
DEN
-
YYZ
1 stop18h 23m
Multiple Airlines
Deal found 10/3C$ 531
Fri 3/48:30 a.m.
YYZ
-
DEN
Nonstop3h 48m
Air Canada
Mon 6/46:05 p.m.
DEN
-
YYZ
Nonstop3h 13m
Air Canada
Deal found 6/3C$ 532

Find 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 10 March 2026.

Round-trip from

C$ 506

One-way from

C$ 198

Popular in

January

Cheapest in

August

Average price

C$ 780
Air Canada
  • Air Canada
  • 23/4-30/4
  • 1 total stop
  • 12h 35m total
  • Niagara Falls to Denver
Search Deals
13/4
  • 13/4
  • 1 total stop
  • 10h 04m total
  • Niagara Falls to Denver
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (C$ 111 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

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 10 March 2026.
Use the filters below to find and compare flights from Niagara Falls to Denver that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

TorontoDenver

YYZ - DEN

YYZDEN

Toronto Pearson Intl

Fri 3/4

8:30 a.m.-10:18 a.m.

Nonstop3h 48m

Denver Intl

Sat 11/4

6:05 p.m.-11:18 p.m.

Nonstop3h 13m

C$ 560

TorontoDenver

YYZ - DEN

YYZDEN

Toronto Pearson Intl

Mon 20/4

6:00 a.m.-7:42 p.m.

1 stop15h 42m

Denver Intl

Tue 21/4

11:55 p.m.-5:39 p.m.

1 stop15h 44m

C$ 575

TorontoDenver

YYZ - DEN

YYZDEN

Toronto Pearson Intl

Fri 3/4

6:08 p.m.-9:28 p.m.

1 stop5h 20m

Denver Intl

Sat 11/4

10:50 a.m.-11:06 p.m.

1 stop10h 16m

C$ 588

TorontoDenver

YYZ - DEN

YYZDEN

Toronto Pearson Intl

Fri 24/4

10:45 a.m.-12:40 p.m.

Nonstop3h 55m

Denver Intl

Fri 1/5

3:52 p.m.-11:54 p.m.

1 stop6h 02m

C$ 620

TorontoDenver

YYZ - DEN

YYZDEN

Toronto Pearson Intl

Thu 21/5

4:18 p.m.-6:03 p.m.

Nonstop3h 45m

Denver Intl

Tue 26/5

4:20 p.m.-11:59 p.m.

1 stop5h 39m

C$ 624

TorontoDenver

YYZ - DEN

YYZDEN

Toronto Pearson Intl

Fri 22/5

10:45 a.m.-12:30 p.m.

Nonstop3h 45m

Denver Intl

Wed 27/5

4:15 p.m.-9:32 p.m.

Nonstop3h 17m

C$ 624

TorontoDenver

YYZ - DEN

YYZDEN

Toronto Pearson Intl

Sat 11/4

4:18 p.m.-6:13 p.m.

Nonstop3h 55m

Denver Intl

Sun 19/4

11:59 p.m.-10:04 a.m.

1 stop8h 05m

C$ 624

TorontoDenver

YYZ - DEN

YYZDEN

Toronto Pearson Intl

Fri 8/5

4:18 p.m.-6:13 p.m.

Nonstop3h 55m

Denver Intl

Fri 15/5

11:59 p.m.-9:19 a.m.

1 stop7h 20m

C$ 624

TorontoDenver

YYZ - DEN

YYZDEN

Toronto Pearson Intl

Sat 4/4

4:18 p.m.-6:13 p.m.

Nonstop3h 55m

Denver Intl

Sat 11/4

3:20 p.m.-11:59 p.m.

1 stop6h 39m

C$ 628

TorontoDenver

YYZ - DEN

YYZDEN

Toronto Pearson Intl

Fri 22/5

4:18 p.m.-6:03 p.m.

Nonstop3h 45m

Denver Intl

Thu 28/5

6:00 a.m.-3:46 p.m.

1 stop7h 46m

C$ 628

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/3

Showing 1-10 of 22 resultsSorted by cheapest first
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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 6 March 2026.

To ensure you get the cheapest price possible for a flight from Niagara Falls to Denver, you should look to book at least 46 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, July is the cheapest month in which you can book a flight from Niagara Falls to Denver (average of C$ 334). Flying from Niagara Falls to Denver in January is currently the most expensive (average of C$ 521). 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 10 March 2026.

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 10 March 2026.

The most flights from NI4 to DEN 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 (4 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 10 March 2026.
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
9,409 reviews
Check prices

Entertainment

7.1

Crew

8.1

Food

6.6

Boarding

7.7

Overall

7.4

Comfort

7.3

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
United Airlines
7.4
Good
9,409 reviews
United Airlines
7.4
Good
9,409 reviews
Check prices

Entertainment

7.1

Crew

8.1

Food

6.6

Boarding

7.7

Overall

7.4

Comfort

7.3

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
WestJet
7.2
Good
3,288 reviews
United Airlines
7.4
Good
9,409 reviews
Check prices

Entertainment

7.1

Crew

8.1

Food

6.6

Boarding

7.7

Overall

7.4

Comfort

7.3

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
Air Canada
7.1
Good
10,800 reviews
United Airlines
7.4
Good
9,409 reviews
Check prices

Entertainment

7.1

Crew

8.1

Food

6.6

Boarding

7.7

Overall

7.4

Comfort

7.3

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats

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 5 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 3h 48m. Fly via Air Canada, Delta, or United Airlines 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 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$ 168. Users have also found prices from C$ 268 and C$ 298 on Air Canada and United Airlines, respectively.

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

    Consider Air Canada (62%), United Airlines (62%) or Austrian Airlines (55%) 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$ 665 for a flight from Niagara Falls to Denver. The cheapest flight overall is C$ 296 while the most popular route, (Toronto Pearson Intl - Denver Intl) is currently priced at C$ 364.

  • 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, July is the cheapest month in which you can book a flight from Niagara Falls to Denver (average of C$ 334). Flying from Niagara Falls to Denver in January is currently the most expensive (average of C$ 521). 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
Thornton
Black Hawk

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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 10 March 2026.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 252AverageC$ 410FlexibilityNo cancel feeOn-time60%
Search WestJet flights
United AirlinesCheapestC$ 396AverageC$ 720FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 450AverageC$ 612FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

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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