$490 Cheap Flights from Knock (NOC) to Denver (DEN)

View $490 flight on Tue, Apr 14, 2026Opens in a new window

Popular airlines from Knock (NOC-Ireland West) to Denver Intl. Airport (DEN)

Cheap Flights from Knock to Denver (NOC-DEN)

Prices were available within the past 7 days and start at $490 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Flights from Knock (NOC) to Denver (DEN)
Origin airport
Ireland West
Destination airport
Denver Intl.
Distance
4273 mi

Knock to Denver Flights

The cheapest times to fly from Knock to Denver

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Knock to Denver are during the month of . You can find some of the cheapest flights from Knock to Denver with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Knock to Denver

Sunday is one of the best days to book for cheap flights from Knock to Denver: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Knock to Denver

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Knock to Denver in 2026. You can also book with separate airlines for your outbound and return journeys, from $490 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Knock to Denver flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Knock to Denver airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Ireland West Airport (NOC) to Denver Intl. Airport (DEN) cost?
Snag a cheap one-way flight from $490 or cheap return flight from Ireland West Airport (NOC) to Denver Intl. Airport (DEN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Ireland West Airport (NOC) to Denver Intl. Airport (DEN)?
The cheapest month to fly from NOC to DEN is , when there's less demand. Off-peak season is often when better flight deals are available between these airports.
What is the cheapest airline that flies from Ireland West Airport (NOC) to Denver Intl. Airport (DEN)?
Expedia's filter tool lets you easily compare different airlines, departure times and fares all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest NOC to DEN flight.
How many flights per day from Ireland West Airport (NOC) to Denver Intl. Airport (DEN)?
There aren't any daily direct flights from Ireland West Airport (NOC) to Denver Intl. Airport (DEN). But you can choose flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be cruising above the clouds in no time at all.
What day of the week has the most flights from NOC to DEN?
Friday is typically the busiest day for flights, while Tuesday is often the quietest.* Remember that flight schedules can change depending on various factors, including the airline and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Ireland West Airport (NOC) to Denver Intl. Airport (DEN)?
Book a flight from Ireland West Airport (NOC) to Denver Intl. Airport (DEN) that leaves before 3 PM to reduce the risk of cancellations and delays. Later departures are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Ireland West Airport (NOC) to Denver Intl. Airport (DEN) last-minute?
Holding off until right before your break to book your flight from NOC to DEN often results in higher prices. While you may come across some last-minute offers, they're not always guaranteed. Keep your travel schedule open to boost your chances of snagging a bargain.
Is it cheaper to book a NOC to DEN flight and hotel package?
You can save money by securing a NOC to DEN flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one convenient place. After selecting your ideal accommodations and flights, you can add extras like activities, car rentals and tours.
Can I cancel or change the date of my flight from Ireland West Airport (NOC) to Denver Intl. Airport (DEN)?
In most cases, you can cancel or reschedule your NOC to DEN flight. However, there may be additional charges, especially if your booking was made over 24 hours ago. Check your itinerary for the airline's policies and fees on flight changes, or if you want further details, head to our Customer Service portal.

Explore a world of travel with Expedia

*Available to One Key members.