$424+ Cheap flights from Colorado to Niagara Falls, NY (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 11/9. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — IAG
Oct 15 — Oct 221
1 adult, Economy
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One-way flights from Colorado to Niagara FallsSearch for one-way flight options from Colorado to Niagara Falls. Find affordable one-way fares based on user searches. Data last updated September 15, 2025.
Search for one-way flight options from Colorado to Niagara Falls. Find affordable one-way fares based on user searches. Data last updated September 15, 2025.
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Sun 11/98:05 amDEN - IAG
2 stops32h 35mMultiple Airlines
Deal found 9/15![Multiple Airlines logo]()
$424
Cheapflights Fare Finder
Customize your flight search to find flights from Colorado 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 September 15, 2025.
Use the filters below to find and compare flights from Colorado to Niagara Falls that are best for you.
Fly from
Colorado
Fly to
Niagara Falls
Route
Depart
Return
Price
DenverNiagara Falls
DEN - IAG
DENIAG
Denver Intl
Sun 11/9
8:05 am-6:40 pm
2 stops32h 35m
$424
Best time to book a flight from Colorado to Niagara Falls
Have a flexible travel schedule? Discover the best time to fly to Niagara Falls from Colorado 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 Colorado to Niagara Falls
What is the cheapest time of day to fly from CO to IAG?
Find hourly flight availability from Colorado 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 September 15, 2025.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Colorado to Niagara Falls, New York as you normally would.