$384+ Cheap flights from Niagara Falls, NY to Denver (IAG - DEN)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/11. Fares are subject to change and may not be available on all flights or dates of travel.
IAG — DEN
Oct 13 — Oct 201
Round-trip
1 adult, Economy
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One-way
One-way flights from Niagara Falls to DenverSearch for one-way flight options from Niagara Falls to Denver. Find affordable one-way fares based on user searches. Data last updated September 13, 2026.
Search for one-way flight options from Niagara Falls to Denver. Find affordable one-way fares based on user searches. Data last updated September 13, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 10/1112:22 pm -
2 stops35h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Multiple Airlines logo]()
$384
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 10/1211:49 am -
2 stops12h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Multiple Airlines logo]()
$476
Find flight deals from Niagara Falls to Denver
Discover tips and strategies to find the most affordable flight options for your journey from Niagara Falls (IAG) to Denver (DEN). 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 September 13, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
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 7,457,451 searches. Data last updated September 13, 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
Cheapest round-trip
Niagara FallsDenver
IAG Niagara Falls - DEN Denver Intl
IAGDEN
Niagara Falls
Sun 10/11
12:22 pm-9:42 pm
2 stops35h 20m
Denver Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$384
Quickest round-trip
Niagara FallsDenver
IAG Niagara Falls - DEN Denver Intl
IAGDEN
Niagara Falls
Mon 10/12
11:49 am-9:49 pm
2 stops12h 00m
Denver Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$476
Sorted by cheapest first
- Most accurate provider: When it comes to deals on Niagara Falls, New York-Denver flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Niagara Falls, New York-Denver flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Niagara Falls, New York-Denver flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Niagara Falls, New York-Denver flights, Cheapflights users trust FlightHub the most. FlightHub 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 Niagara Falls, New York-Denver 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 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.
IAG-DEN
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.
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.
Traveling to a place near Denver?
Book flights to Denver if you plan to visit one of these locationsThornton
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