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Niagara Falls

$351+ Cheap flights from Denver to Niagara Falls (DEN - IAG)

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 1/19. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — IAG
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheap flight deals from Denver to Niagara Falls

One-way flights from Denver to Niagara Falls
Search for one-way flight options from Denver to Niagara Falls. Find affordable one-way fares based on user searches. Data last updated December 12, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/11. 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 1/194:32 pmDEN - IAG
2 stops44h 21mMultiple Airlines
Deal found 12/11$351
This Kiwi.com deal was found by Cheapflights users on 12/10. 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 12/2911:06 amDEN - IAG
2 stops29h 24mMultiple Airlines
Deal found 12/10$496

Find flight deals from Denver to Niagara Falls

Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to Niagara Falls (IAG). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars
Provider with most accurate pricing for Denver Intl-Niagara Falls flight deals.
Search Deals
Provider most trusted by Cheapflights users for Denver Intl-Niagara Falls flights.
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Denver 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 December 12, 2025.
Use the filters below to find and compare flights from Denver to Niagara Falls that are best for you.

Fly from

Denver

Fly to

Niagara Falls

Route

Depart

Return

Price

DenverNiagara Falls

DEN - IAG

DENIAG

Denver Intl

Mon 1/19

4:32 pm-2:53 pm

2 stops44h 21m

$351

DenverNiagara Falls

DEN - IAG

DENIAG

Denver Intl

Mon 12/29

11:06 am-6:30 pm

2 stops29h 24m

$496

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

Compare providers for flights from Denver to Niagara Falls

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Denver to Niagara Falls in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Denver-Niagara Falls flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Denver-Niagara Falls flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Denver-Niagara Falls flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Denver-Niagara Falls flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Denver-Niagara Falls flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Denver to Niagara Falls

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

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

Currently, October is the cheapest month in which you can book a flight from Denver to Niagara Falls (average of $92). Flying from Denver to Niagara Falls in April is currently the most expensive (average of $226). 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 DEN to IAG?

Find hourly flight availability from Denver 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 December 12, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 63% on flights from Denver to Niagara Falls by exploring options for tickets in the evening.

Related info for your journey

Find useful and relevant information for your journey from Denver to Niagara Falls. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Denver to Niagara Falls (average of $92). Flying from Denver to Niagara Falls in April is currently the most expensive (average of $226). 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

Traveling to a place near Niagara Falls?

Book flights to Niagara Falls if you plan to visit one of these locations
Lewiston

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