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Cheap flights from Niagara Falls, ON to Denver from C$ 258

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 25/8. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — DEN
12 Jul — 19 Jul1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Niagara Falls to Denver Intl are usually found in October or September, booked 89 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 12 June 2026.

Wed 5/88:00 a.m.
YYZ
-
DEN
1 stop29h 20m
WestJet
Tue 11/812:15 p.m.
DEN
-
YYZ
1 stop9h 55m
WestJet
Deal found 8/6C$ 469
Thu 20/82:50 p.m.
YYZ
-
DEN
1 stop22h 30m
WestJet
Thu 27/812:15 p.m.
DEN
-
YYZ
1 stop9h 55m
WestJet
Deal found 8/6C$ 485
Tue 28/712:55 p.m.
YYZ
-
DEN
1 stop10h 46m
Multiple Airlines
Fri 31/710:15 a.m.
DEN
-
YYZ
1 stop8h 35m
Multiple Airlines
Deal found 11/6C$ 497
Mon 24/88:35 p.m.
YYZ
-
DEN
1 stop9h 23m
Multiple Airlines
Tue 25/87:26 p.m.
DEN
-
YYZ
1 stop9h 13m
Multiple Airlines
Deal found 10/6C$ 504
Wed 1/75:20 p.m.
YYZ
-
DEN
2 stops20h 00m
WestJet
Mon 6/712:15 p.m.
DEN
-
YYZ
1 stop8h 30m
WestJet
Deal found 10/6C$ 510
Fri 17/72:25 p.m.
YYZ
-
DEN
2 stops22h 55m
WestJet
Tue 21/712:15 p.m.
DEN
-
YYZ
1 stop8h 30m
WestJet
Deal found 11/6C$ 515
Tue 21/72:25 p.m.
YYZ
-
DEN
2 stops22h 55m
WestJet
Sun 2/812:15 p.m.
DEN
-
YYZ
2 stops25h 05m
WestJet
Deal found 10/6C$ 517
Tue 14/75:20 p.m.
YYZ
-
DEN
2 stops20h 00m
WestJet
Tue 21/712:15 p.m.
DEN
-
YYZ
1 stop8h 30m
WestJet
Deal found 11/6C$ 518
Thu 16/72:50 p.m.
YYZ
-
DEN
1 stop22h 30m
WestJet
Mon 20/712:15 p.m.
DEN
-
YYZ
1 stop9h 55m
WestJet
Deal found 8/6C$ 520
Mon 10/88:35 p.m.
YYZ
-
DEN
1 stop9h 15m
Multiple Airlines
Fri 21/86:00 a.m.
DEN
-
YYZ
1 stop12h 50m
Multiple Airlines
Deal found 12/6C$ 522
Fri 31/78:00 a.m.
YYZ
-
DEN
1 stop29h 20m
WestJet
Sun 2/812:15 p.m.
DEN
-
YYZ
1 stop8h 30m
WestJet
Deal found 10/6C$ 525

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 12 June 2026.

Round-trip from

C$ 469

One-way from

C$ 258

Popular in

January

Cheapest in

October

Average price

C$ 693
WestJet
  • WestJet
  • 5/8-11/8
  • 2 total stops
  • 39h 15m total
  • Niagara Falls to Denver
Search Deals
Air Canada
  • Air Canada
  • 25/8
  • Nonstop
  • 3h 40m total
  • Niagara Falls to Denver
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (C$ 92 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 June 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 12 June 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

TorontoDenver

YYZ - DEN

YYZDEN

Toronto Pearson Intl

Mon 12/10

3:59 p.m.-9:40 p.m.

1 stop7h 41m

Denver Intl

Wed 14/10

12:59 a.m.-10:24 a.m.

1 stop7h 25m

C$ 596

TorontoDenver

YYZ - DEN

YYZDEN

Toronto Pearson Intl

Fri 17/7

6:10 a.m.-1:45 p.m.

1 stop9h 35m

Denver Intl

Sun 19/7

12:59 a.m.-8:55 a.m.

1 stop5h 56m

C$ 606

TorontoDenver

YYZ - DEN

YYZDEN

Toronto Pearson Intl

Wed 29/7

4:10 p.m.-10:44 p.m.

1 stop8h 34m

Denver Intl

Sun 2/8

12:59 a.m.-8:55 a.m.

1 stop5h 56m

C$ 606

TorontoDenver

YYZ - DEN

YYZDEN

Toronto Pearson Intl

Tue 21/7

3:00 p.m.-9:18 p.m.

1 stop8h 18m

Denver Intl

Fri 31/7

6:05 p.m.-11:17 p.m.

Nonstop3h 12m

C$ 616
Quickest round-trip

TorontoDenver

YYZ - DEN

YYZDEN

Toronto Pearson Intl

Sat 25/7

7:43 p.m.-12:30 a.m.

1 stop6h 47m

Denver Intl

Sat 1/8

6:05 p.m.-11:17 p.m.

Nonstop3h 12m

C$ 622

TorontoDenver

YYZ - DEN

YYZDEN

Toronto Pearson Intl

Wed 1/7

6:05 a.m.-1:54 p.m.

1 stop9h 49m

Denver Intl

Sat 4/7

1:15 p.m.-11:58 p.m.

1 stop8h 43m

C$ 622

TorontoDenver

YYZ - DEN

YYZDEN

Toronto Pearson Intl

Mon 13/7

7:43 p.m.-12:30 a.m.

1 stop6h 47m

Denver Intl

Sat 18/7

6:05 p.m.-11:17 p.m.

Nonstop3h 12m

C$ 643

TorontoDenver

YYZ - DEN

YYZDEN

Toronto Pearson Intl

Fri 31/7

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

1 stop13h 45m

Denver Intl

Thu 6/8

6:05 p.m.-11:17 p.m.

Nonstop3h 12m

C$ 643

TorontoDenver

YYZ - DEN

YYZDEN

Toronto Pearson Intl

Mon 20/7

7:43 p.m.-12:30 a.m.

1 stop6h 47m

Denver Intl

Sun 26/7

6:05 p.m.-11:17 p.m.

Nonstop3h 12m

C$ 647

TorontoDenver

YYZ - DEN

YYZDEN

Toronto Pearson Intl

Wed 12/8

4:18 p.m.-5:56 p.m.

Nonstop3h 38m

Denver Intl

Sun 16/8

9:40 a.m.-7:01 p.m.

1 stop7h 21m

C$ 662

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/6

Showing 1-10 of 21 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

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 12 June 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 12 June 2026.

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).

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 12 June 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
9,813 reviews
Check prices

Food

6.6

Entertainment

7.1

Crew

8.1

Comfort

7.3

Boarding

7.7

Overall

7.4

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
9,813 reviews
United Airlines
7.4
Good
9,813 reviews
Check prices

Food

6.6

Entertainment

7.1

Crew

8.1

Comfort

7.3

Boarding

7.7

Overall

7.4

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
3,357 reviews
United Airlines
7.4
Good
9,813 reviews
Check prices

Food

6.6

Entertainment

7.1

Crew

8.1

Comfort

7.3

Boarding

7.7

Overall

7.4

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
11,172 reviews
United Airlines
7.4
Good
9,813 reviews
Check prices

Food

6.6

Entertainment

7.1

Crew

8.1

Comfort

7.3

Boarding

7.7

Overall

7.4

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 9 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 7h 41m. Fly via Delta to get the fastest option. Airlines will cover a distance of 2111 km.

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

    Consider Brussels Airlines (85%), Air Canada (76%) or United Airlines (76%) 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$ 1,024 for a flight from Niagara Falls to Denver. The cheapest flight overall is C$ 313 while the most popular route, (Toronto Pearson Intl - Denver Intl) is currently priced at C$ 474.

  • 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.

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

Browse thousands of different options on Cheapflights for your next trip

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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 12 June 2026.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 370AverageC$ 465FlexibilityNo cancel feeOn-time60%
Search WestJet flights
United AirlinesCheapestC$ 401AverageC$ 736FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 448AverageC$ 638FlexibilityNo cancel feeOn-time67%
Search Air Canada 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?

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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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