HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Colorado

$365+ Cheap flights from Ireland to Colorado

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 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — DEN
Dec 3 — Dec 101
Wed 12/3
Wed 12/10
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ireland to Colorado with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Ireland to Colorado

Keep the following information in mind while searching for Ireland to Colorado flight deals. Data was last updated November 3, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$585
(Gotogate)

One-way from

$365
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$691

Good round-trip deal

$433 or less

Good one-way deal

$653 or less
Provider with most accurate pricing for Dublin-Denver Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Dublin-Denver Intl flights.
Search Deals
From Ireland to Colorado
Search Deals
One-way flight from Ireland to Colorado
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($126 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals
Price to beat on a round-trip flight from Ireland to Colorado.
Search Deals
Price to beat on a one-way flight from Ireland to Colorado.
Search Deals

Find flight deals from Ireland to Colorado

Cheapest flights from Ireland to Colorado
Explore the most affordable flight options available from Ireland to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 3, 2025.

This Gotogate deal was found by Cheapflights users on 11/2. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1411:30 amDUB - DEN
1 stop13h 35mIcelandair
Mon 11/173:40 pmDEN - DUB
1 stop11h 35mIcelandair
Deal found 11/2$585
This Mytrip deal was found by Cheapflights users on 11/1. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/511:30 amDUB - DEN
1 stop13h 35mIcelandair
Wed 12/103:40 pmDEN - DUB
1 stop11h 35mIcelandair
Deal found 11/1$599
This FlightHub deal was found by Cheapflights users on 11/1. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1211:30 amDUB - DEN
1 stop13h 35mIcelandair
Mon 12/13:40 pmDEN - DUB
1 stop11h 35mIcelandair
Deal found 11/1$601
This Kiwi.com deal was found by Cheapflights users on 11/2. 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 11/1711:30 amDUB - DEN
1 stop13h 35mIcelandair
Mon 12/13:40 pmDEN - DUB
1 stop11h 35mIcelandair
Deal found 11/2$615
This Icelandair deal was found by Cheapflights users on 11/2. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1411:30 amDUB - DEN
1 stop13h 35mIcelandair
Sun 11/303:40 pmDEN - DUB
1 stop11h 35mIcelandair
Deal found 11/2$621
This Flightnetwork deal was found by Cheapflights users on 11/1. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1211:30 amDUB - DEN
1 stop13h 35mIcelandair
Tue 12/23:40 pmDEN - DUB
1 stop11h 35mIcelandair
Deal found 11/1$664
This Kiwi.com deal was found by Cheapflights users on 11/2. 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.
Wed 11/1910:45 amDUB - DEN
1 stop14h 41mMultiple Airlines
Tue 11/256:22 amDEN - DUB
1 stop19h 23mMultiple Airlines
Deal found 11/2$682
This lastminute.com deal was found by Cheapflights users on 11/2. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/212:30 pmDUB - DEN
2 stops42h 15mScandinavian Airlines
Tue 12/912:40 pmDEN - DUB
2 stops22h 40mScandinavian Airlines
Deal found 11/2$686
This Kiwi.com deal was found by Cheapflights users on 11/2. 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 11/1710:45 amDUB - DEN
1 stop14h 41mMultiple Airlines
Tue 11/256:22 amDEN - DUB
1 stop19h 23mMultiple Airlines
Deal found 11/2$688
This Expedia deal was found by Cheapflights users on 11/2. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1011:30 amDUB - DEN
1 stop13h 35mIcelandair
Sun 12/283:40 pmDEN - DUB
1 stop11h 35mIcelandair
Deal found 11/2$703
This Kiwi.com deal was found by Cheapflights users on 11/2. 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.
Tue 11/185:00 amDUB - DEN
1 stop15h 40mLufthansa
Wed 11/264:05 pmDEN - DUB
1 stop11h 15mLufthansa
Deal found 11/2$726
This Turkish Airlines deal was found by Cheapflights users on 11/2. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2410:40 amDUB - DEN
1 stop37h 55mTurkish Airlines
Thu 1/17:20 pmDEN - DUB
1 stop31h 20mTurkish Airlines
Deal found 11/2$729

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ireland to Colorado 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 November 3, 2025.
Use the filters below to find and compare flights from Ireland to Colorado that are best for you.

Fly from

Ireland

Fly to

Colorado

Route

Depart

Return

Price

DublinDenver

DUB - DEN

DUBDEN

Dublin

Mon 11/17

11:30 am-6:05 pm

1 stop13h 35m

Denver Intl

Fri 11/28

3:40 pm-10:15 am

1 stop11h 35m

$621

DublinDenver

DUB - DEN

DUBDEN

Dublin

Fri 1/9

12:30 pm-10:48 pm

2 stops41h 18m

Denver Intl

Tue 3/31

12:59 pm-6:20 pm

2 stops22h 21m

$651

DublinDenver

DUB - DEN

DUBDEN

Dublin

Sat 1/10

11:30 am-6:05 pm

1 stop13h 35m

Denver Intl

Tue 3/31

4:40 pm-11:05 am

1 stop11h 25m

$690

DublinDenver

DUB - DEN

DUBDEN

Dublin

Mon 11/17

5:10 am-1:40 pm

1 stop15h 30m

Denver Intl

Sat 11/29

11:15 am-8:10 am

1 stop13h 55m

$748

DublinDenver

DUB - DEN

DUBDEN

Dublin

Sat 11/15

5:10 am-1:40 pm

1 stop15h 30m

Denver Intl

Fri 11/28

11:15 am-8:10 am

1 stop13h 55m

$748

DublinDenver

DUB - DEN

DUBDEN

Dublin

Sat 11/15

5:10 am-1:40 pm

1 stop15h 30m

Denver Intl

Sat 11/29

11:15 am-8:10 am

1 stop13h 55m

$748

ShannonDenver

SNN - DEN

SNNDEN

Shannon

Wed 11/19

7:50 am-8:17 pm

2 stops19h 27m

Denver Intl

Sun 11/23

12:26 pm-11:30 am

2 stops16h 04m

$764

DublinDenver

DUB - DEN

DUBDEN

Dublin

Sun 11/16

9:00 am-10:23 am

1 stop32h 23m

Denver Intl

Wed 11/26

10:20 am-10:20 am

1 stop17h 00m

$764

DublinDenver

DUB - DEN

DUBDEN

Dublin

Sun 11/16

9:00 am-10:23 am

1 stop32h 23m

Denver Intl

Tue 11/25

4:05 pm-10:20 am

1 stop11h 15m

$764

DublinDenver

DUB - DEN

DUBDEN

Dublin

Fri 11/14

9:00 am-4:40 pm

1 stop14h 40m

Denver Intl

Thu 11/27

1:25 pm-8:10 am

1 stop11h 45m

$764

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/1

Showing 1-10 of 33 results
1
2
3
4

Best time to book a flight from Ireland to Colorado

Have a flexible travel schedule? Discover the best time to fly to Colorado from Ireland 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 Ireland to Colorado

What is the cheapest month to book a flight from Ireland to Colorado?

Currently, April is the cheapest month in which you can book a flight from Ireland to Colorado (average of $432). Flying from Ireland to Colorado in June is currently the most expensive (average of $722). 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 IE to CO?

Find hourly flight availability from Ireland to Colorado. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 3, 2025.

It’s optimal to fly from Ireland to Colorado in the afternoon. By choosing this option you can save up to 22% on the cost of your flight, compared to a flight in the morning.

Reviews of airlines servicing Colorado

Get insights into the airlines that provide service to Colorado. 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 Colorado. Reviews last updated November 3, 2025.
Read reviews from past customers who have flown United Airlines, American Airlines, and Aer Lingus from Ireland to Colorado. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,997 reviews

Crew

8.1

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Food

6.6

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
United Airlines
7.4
Good
8,997 reviews
United Airlines
7.4
Good
8,997 reviews

Crew

8.1

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Food

6.6

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
American Airlines
7.2
Good
11,038 reviews
United Airlines
7.4
Good
8,997 reviews

Crew

8.1

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Food

6.6

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
Aer Lingus
7.2
Good
1,365 reviews
United Airlines
7.4
Good
8,997 reviews

Crew

8.1

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Food

6.6

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
Icelandair
7.1
Good
568 reviews
United Airlines
7.4
Good
8,997 reviews

Crew

8.1

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Food

6.6

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
British Airways
6.7
Okay
7,494 reviews
United Airlines
7.4
Good
8,997 reviews

Crew

8.1

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Food

6.6

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Related info for your journey

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

  • How popular is this Ireland to Colorado flight route?

    Flights from Ireland to Colorado have been viewed 5 times in the past calendar month.

  • How long is the flight from Ireland to Colorado?

    A quick flight from Ireland to Colorado can take about 13h 35m. Icelandair provides one of the quickest options available for as low as $621. The distance from Ireland to Colorado is about 4378 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from Ireland to Colorado that include hotel bookings?

    Yes. In addition to deals on Ireland to Colorado flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ireland to Colorado?

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

  • Can I find deals for business class flights from Ireland to Colorado?

    Yes. Cheapflights offers flight deals from Ireland to Colorado 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 Ireland to Colorado?

    Currently, April is the cheapest month in which you can book a flight from Ireland to Colorado (average of $432). Flying from Ireland to Colorado in June is currently the most expensive (average of $722). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ireland to Colorado

See prices for flight routes from nearby airports that may be better suited for you.
Charles de Gaulle to John F Kennedy Intl flights
Charles de Gaulle to Newark flights
Orly to Newark flights
Orly to John F Kennedy Intl flights
Frankfurt to Newark flights
Charles de Gaulle to LaGuardia flights
Heathrow to John F Kennedy Intl flights
Heathrow to Newark flights
Charles de Gaulle to Miami flights
Frankfurt to John F Kennedy Intl flights
Charles de Gaulle to Los Angeles flights
Frankfurt to LaGuardia flights
Heathrow to LaGuardia flights
Malpensa to John F Kennedy Intl flights
Gatwick to John F Kennedy Intl flights
Gatwick to Newark flights
London City to John F Kennedy Intl flights
Vienna to Newark flights
Madrid to John F Kennedy Intl flights
Frankfurt to Miami flights
Madrid to Newark flights
Barcelona-El Prat to Newark flights
Munich to Newark flights
Leonardo da Vinci/Fiumicino to Newark flights
Berlin to Newark flights
Barcelona-El Prat to John F Kennedy Intl flights
Gatwick to LaGuardia flights
Munich to John F Kennedy Intl flights
Leonardo da Vinci/Fiumicino to John F Kennedy Intl flights
Malpensa to Newark flights
London City to Newark flights
Stansted to John F Kennedy Intl flights
Vienna to John F Kennedy Intl flights
Frederic Chopin to Newark flights
Frederic Chopin to John F Kennedy Intl flights
Luton to John F Kennedy Intl flights
Frankfurt to San Francisco flights
Madrid to Miami flights
Stansted to Newark flights
Duesseldorf Intl to John F Kennedy Intl flights
Beauvais-Tille to Newark flights
Bruxelles-National to John F Kennedy Intl flights
Bruxelles-National to Newark flights
Frankfurt to Los Angeles flights
Luton to Newark flights
Berlin to John F Kennedy Intl flights
Frankfurt-Hahn to John F Kennedy Intl flights
Zurich to John F Kennedy Intl flights

Top 5 airlines flying from Ireland to Colorado

Discover the top 5 airlines that operate flights from Ireland to Colorado. 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 2,558,603 searches. Data last updated November 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$430Average$695FlexibilityNo cancel feeOn-time70%
Aer LingusCheapest$433Average$808FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$589Average$765FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$625Average$957FlexibilityNo cancel feeOn-time69%
IcelandairCheapest$650Average$755FlexibilityNo cancel feeOn-time76%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.