Colorado

$326+ 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 3/10. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — DEN
Mar 15 — Mar 221
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Cheap 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 February 13, 2026.

This Finnair deal was found by Cheapflights users on 2/12. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/309:30 am
DUB
-
DEN
1 stop15h 23m
Multiple Airlines
Mon 4/136:40 pm
DEN
-
DUB
1 stop17h 55m
Multiple Airlines
Deal found 2/12$392
This lol.travel deal was found by Cheapflights users on 2/10. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/39:30 am
DUB
-
DEN
1 stop15h 23m
Finnair
Thu 4/1610:28 am
DEN
-
DUB
1 stop16h 17m
Finnair
Deal found 2/10$399
This Priceline deal was found by Cheapflights users on 2/11. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/69:30 am
DUB
-
DEN
1 stop15h 23m
Finnair
Sun 4/1210:28 am
DEN
-
DUB
1 stop16h 17m
Finnair
Deal found 2/11$409
This Finnair deal was found by Cheapflights users on 2/11. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/39:30 am
DUB
-
DEN
1 stop15h 23m
Multiple Airlines
Thu 4/166:40 pm
DEN
-
DUB
1 stop17h 00m
Multiple Airlines
Deal found 2/11$419
This Kiwi.com deal was found by Cheapflights users on 2/10. 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.
Wed 6/39:30 am
DUB
-
DEN
1 stop21h 44m
Finnair
Sat 6/202:19 pm
DEN
-
DUB
1 stop14h 31m
Finnair
Deal found 2/10$430
This Finnair deal was found by Cheapflights users on 2/10. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/19:40 am
DUB
-
DEN
2 stops19h 55m
Multiple Airlines
Tue 5/126:40 pm
DEN
-
DUB
1 stop17h 10m
Multiple Airlines
Deal found 2/10$442
This Gotogate deal was found by Cheapflights users on 2/11. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/162:15 pm
DUB
-
DEN
1 stop11h 45m
Icelandair
Mon 6/294:40 pm
DEN
-
DUB
1 stop13h 35m
Icelandair
Deal found 2/11$450
This FlightHub deal was found by Cheapflights users on 2/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/22:15 pm
DUB
-
DEN
1 stop11h 45m
Icelandair
Sat 6/204:40 pm
DEN
-
DUB
1 stop11h 25m
Icelandair
Deal found 2/10$455
This TravelUp deal was found by Cheapflights users on 2/10. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/1711:30 am
DUB
-
DEN
1 stop17h 06m
Multiple Airlines
Tue 2/248:00 am
DEN
-
DUB
2 stops17h 40m
Multiple Airlines
Deal found 2/10$456
This FlightHub deal was found by Cheapflights users on 2/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/512:15 pm
DUB
-
DEN
1 stop31h 25m
Icelandair
Sun 6/74:40 pm
DEN
-
DUB
1 stop13h 35m
Icelandair
Deal found 2/10$457
This British Airways deal was found by Cheapflights users on 2/12. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/278:05 pm
SNN
-
DEN
2 stops28h 55m
British Airways
Tue 3/310:20 am
DEN
-
SNN
2 stops18h 10m
British Airways
Deal found 2/12$617
This lol.travel deal was found by Cheapflights users on 2/11. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/267:50 am
SNN
-
DEN
2 stops20h 00m
Multiple Airlines
Mon 3/212:21 pm
DEN
-
SNN
2 stops16h 09m
Multiple Airlines
Deal found 2/11$620

Find flight deals from Ireland to Colorado

Keep the following information in mind while searching for Ireland to Colorado flight deals. Data was last updated February 13, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$392
(Finnair)

One-way from

$326
(Kiwi.com)

Popular in

June

Cheapest in

September

Average price

$658

Good one-way deal

$717 or less
Provider with most accurate pricing for Dublin-Denver Intl flight deals.
Provider most trusted by Cheapflights users for Dublin-Denver Intl flights.
From Ireland to Colorado
One-way flight from Ireland to Colorado
Highest demand for flights based on searches. 16% potential increase in price ($150 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($17 potential savings vs. average RT price).
Average for round-trip flights in February 2026
Price to beat on a one-way flight from Ireland to Colorado.

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 February 13, 2026.
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

Thu 6/4

9:30 am-12:14 am

1 stop21h 44m

Denver Intl

Wed 6/10

12:39 pm-9:45 am

1 stop14h 06m

$399

DublinDenver

DUB - DEN

DUBDEN

Dublin

Fri 5/1

9:40 am-10:35 pm

2 stops19h 55m

Denver Intl

Tue 5/12

6:40 pm-6:50 pm

1 stop17h 10m

$442

DublinDenver

DUB - DEN

DUBDEN

Dublin

Tue 3/10

1:25 pm-4:30 pm

1 stop33h 05m

Denver Intl

Tue 3/17

6:25 pm-7:55 am

1 stop31h 30m

$460

DublinDenver

DUB - DEN

DUBDEN

Dublin

Thu 4/16

2:15 pm-7:00 pm

1 stop11h 45m

Denver Intl

Mon 4/20

4:40 pm-1:15 pm

1 stop13h 35m

$463

DublinDenver

DUB - DEN

DUBDEN

Dublin

Thu 4/16

10:30 am-4:30 pm

1 stop13h 00m

Denver Intl

Mon 4/20

6:30 pm-7:35 pm

2 stops18h 05m

$477

DublinDenver

DUB - DEN

DUBDEN

Dublin

Mon 6/1

2:15 pm-7:00 pm

1 stop11h 45m

Denver Intl

Sat 6/20

4:40 pm-11:05 am

1 stop11h 25m

$478

DublinDenver

DUB - DEN

DUBDEN

Dublin

Tue 6/2

2:15 pm-7:00 pm

1 stop11h 45m

Denver Intl

Mon 6/22

4:40 pm-1:15 pm

1 stop13h 35m

$478

DublinDenver

DUB - DEN

DUBDEN

Dublin

Wed 6/3

12:15 pm-7:00 pm

1 stop13h 45m

Denver Intl

Tue 6/16

4:40 pm-11:05 am

1 stop11h 25m

$478

DublinDenver

DUB - DEN

DUBDEN

Dublin

Mon 6/1

2:15 pm-7:00 pm

1 stop11h 45m

Denver Intl

Sun 6/21

4:40 pm-1:15 pm

1 stop13h 35m

$478

ShannonDenver

SNN - DEN

SNNDEN

Shannon

Fri 2/27

8:05 pm-6:00 pm

2 stops28h 55m

Denver Intl

Tue 3/3

10:20 am-11:30 am

2 stops18h 10m

$617

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/12

Showing 1-10 of 37 results
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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, February is the cheapest month in which you can book a flight from Ireland to Colorado (average of $430). Flying from Ireland to Colorado in July is currently the most expensive (average of $709). 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.

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 February 13, 2026.
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.

Crew

8.1

Entertainment

7.1

Boarding

7.7

Food

6.6

Comfort

7.3

Overall

7.4

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats

Crew

8.1

Entertainment

7.1

Boarding

7.7

Food

6.6

Comfort

7.3

Overall

7.4

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats

Crew

8.1

Entertainment

7.1

Boarding

7.7

Food

6.6

Comfort

7.3

Overall

7.4

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats

Crew

8.1

Entertainment

7.1

Boarding

7.7

Food

6.6

Comfort

7.3

Overall

7.4

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats

Crew

8.1

Entertainment

7.1

Boarding

7.7

Food

6.6

Comfort

7.3

Overall

7.4

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats

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?

  • How long is the flight from Ireland to Colorado?

    A quick flight from Ireland to Colorado can take about 13h 53m. Finnair provides one of the quickest options available for as low as $965. The distance from Ireland to Colorado is about 4434 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Ireland to Colorado one-way?

    The cheapest airline one-way is WestJet, with whom users have recently found tickets for as low as $351. However, be on the lookout for offers from Icelandair and British Airways, as they are both options that can get you from Ireland to Colorado for a low price.

  • 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, February is the cheapest month in which you can book a flight from Ireland to Colorado (average of $430). Flying from Ireland to Colorado in July is currently the most expensive (average of $709). 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

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Alternative routes for Ireland to Colorado

See prices for flight routes from nearby airports that may be better suited for you.

Top 4 airlines flying from Ireland to Colorado

Discover the top 4 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 February 13, 2026.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest$433Average$808FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$484Average$999FlexibilityNo cancel feeOn-time71%
IcelandairCheapest$601Average$737FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$625Average$879FlexibilityNo cancel feeOn-time69%

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