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Ireland

$226+ Cheap flights from Colorado to Ireland

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 10/13. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — DUB
Oct 19 — Oct 261
Sun 10/19
Sun 10/26
1 adult, Economy
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Cheap flight deals from Colorado to Ireland

Keep the following information in mind while searching for Colorado to Ireland flight deals. Data was last updated September 19, 2025.

Round-trip from

$390
(oojo)

One-way from

$226
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$589

Good round-trip deal

$628 or less

Good one-way deal

$479 or less
From Colorado to Ireland
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One-way flight from Colorado to Ireland
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Highest demand for flights based on searches. 24% potential increase in price ($200 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($30 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Colorado to Ireland.
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Price to beat on a one-way flight from Colorado to Ireland.
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Find flight deals from Colorado to Ireland

Cheapest flights from Colorado to Ireland
Explore the most affordable flight options available from Colorado to Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 19, 2025.

This Icelandair deal was found by Cheapflights users on 9/17. 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.
Sun 10/194:40 pmDEN - DUB
1 stop13h 35mIcelandair
Thu 11/611:30 amDUB - DEN
1 stop13h 35mIcelandair
Deal found 9/17$399
This Mytrip deal was found by Cheapflights users on 9/17. 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.
Mon 12/13:40 pmDEN - DUB
1 stop11h 35mIcelandair
Sun 12/1411:30 amDUB - DEN
1 stop13h 35mIcelandair
Deal found 9/17$400
This oojo deal was found by Cheapflights users on 9/17. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/143:40 pmDEN - DUB
1 stop11h 35mIcelandair
Mon 11/1711:30 amDUB - DEN
1 stop13h 35mIcelandair
Deal found 9/17$402
This Booking.com deal was found by Cheapflights users on 9/18. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/73:40 pmDEN - DUB
1 stop11h 35mIcelandair
Fri 11/1411:30 amDUB - DEN
1 stop13h 35mIcelandair
Deal found 9/18$406
This oojo deal was found by Cheapflights users on 9/18. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/224:40 pmDEN - DUB
1 stop13h 35mIcelandair
Wed 10/2911:30 amDUB - DEN
1 stop13h 35mIcelandair
Deal found 9/18$407
This lastminute.com deal was found by Cheapflights users on 9/18. 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.
Mon 10/136:05 pmDEN - DUB
1 stop30h 40mAir Canada
Wed 10/229:20 amDUB - DEN
1 stop14h 58mAir Canada
Deal found 9/18$409
This Booking.com deal was found by Cheapflights users on 9/17. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/103:40 pmDEN - DUB
1 stop11h 35mIcelandair
Sun 11/2311:30 amDUB - DEN
1 stop13h 35mIcelandair
Deal found 9/17$410
This Gurufare deal was found by Cheapflights users on 9/17. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/244:40 pmDEN - DUB
1 stop13h 35mIcelandair
Fri 11/711:30 amDUB - DEN
1 stop13h 35mIcelandair
Deal found 9/17$412
This Icelandair deal was found by Cheapflights users on 9/17. 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.
Sun 10/194:40 pmDEN - DUB
1 stop13h 35mIcelandair
Mon 11/311:30 amDUB - DEN
1 stop13h 35mIcelandair
Deal found 9/17$419
This Gurufare deal was found by Cheapflights users on 9/17. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/83:40 pmDEN - DUB
1 stop11h 35mIcelandair
Thu 11/1311:30 amDUB - DEN
1 stop13h 35mIcelandair
Deal found 9/17$420
This American Airlines deal was found by Cheapflights users on 9/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/95:25 pmDEN - SNN
1 stop16h 20mAmerican Airlines
Mon 11/177:50 amSNN - DEN
1 stop14h 40mAmerican Airlines
Deal found 9/17$485
This American Airlines deal was found by Cheapflights users on 9/18. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/296:25 pmDEN - SNN
1 stop16h 20mAmerican Airlines
Fri 11/77:50 amSNN - DEN
1 stop14h 40mAmerican Airlines
Deal found 9/18$486

Cheapflights Fare Finder

 
Customize your flight search to find flights from Colorado to Ireland 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 19, 2025.
Use the filters below to find and compare flights from Colorado to Ireland that are best for you.

Fly from

Colorado

Fly to

Ireland

Route

Depart

Return

Price

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Sun 11/30

3:40 pm-10:15 am

1 stop11h 35m

Dublin

Wed 12/10

11:30 am-6:05 pm

1 stop13h 35m

$399

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Sun 11/30

3:40 pm-10:15 am

1 stop11h 35m

Dublin

Fri 12/5

11:30 am-6:05 pm

1 stop13h 35m

$399

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Sun 11/30

3:40 pm-10:15 am

1 stop11h 35m

Dublin

Sun 12/7

11:30 am-6:05 pm

1 stop13h 35m

$419

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Fri 10/31

4:40 pm-10:15 am

1 stop11h 35m

Dublin

Sun 11/9

11:30 am-6:05 pm

1 stop13h 35m

$419

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Wed 2/25

1:45 pm-10:20 am

1 stop13h 35m

Dublin

Wed 3/4

9:00 am-4:40 pm

1 stop14h 40m

$427

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Wed 11/26

6:00 am-7:45 am

1 stop18h 45m

Dublin

Thu 12/4

9:45 am-11:16 pm

1 stop20h 31m

$443

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Mon 10/27

4:05 pm-10:20 am

1 stop12h 15m

Dublin

Fri 11/7

12:05 pm-12:15 am

1 stop19h 10m

$443

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Mon 10/27

4:05 pm-10:20 am

1 stop12h 15m

Dublin

Wed 11/5

12:05 pm-12:15 am

1 stop19h 10m

$443

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Sat 10/25

5:36 pm-7:10 am

1 stop30h 34m

Dublin

Thu 11/6

10:40 am-11:15 pm

1 stop19h 35m

$445

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Mon 2/23

10:30 am-8:45 am

2 stops15h 15m

Dublin

Wed 3/4

10:45 am-10:49 pm

2 stops19h 04m

$447

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/18

Showing 1-10 of 49 results
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Best time to book a flight from Colorado to Ireland

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

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

Currently, November is the cheapest month in which you can book a flight from Colorado to Ireland (average of $509). Flying from Colorado to Ireland in June is currently the most expensive (average of $923). 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 CO to IE?

Find hourly flight availability from Colorado to Ireland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 19, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Colorado to Ireland as you normally would.

Related info for your journey

Find useful and relevant information for your journey from Colorado to Ireland. 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 Colorado to Ireland flight route?

    Within the past month, 7 users have taken a look at flights from Colorado to Ireland.

  • How long is the flight from Colorado to Ireland?

    There are many flights that can get you from Colorado to Ireland in 11h 35m. Fly via Icelandair, United Airlines, or American Airlines to get the fastest option. Airlines will cover a distance of 4378 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Colorado to Ireland (average of $509). Flying from Colorado to Ireland in June is currently the most expensive (average of $923). 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 Colorado to Ireland

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Colorado to Ireland

Discover the top 10 airlines that operate flights from Colorado to Ireland. 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 September 19, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$131Average$656FlexibilityNo cancel feeOn-time62%
IcelandairCheapest$346Average$497FlexibilityNo cancel feeOn-time76%
KLMCheapest$362Average$551FlexibilityNo cancel feeOn-time75%
DeltaCheapest$363Average$654FlexibilityNo cancel feeOn-timeN/A
IberiaCheapest$372Average$561FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$390Average$596FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$394Average$708FlexibilityNo cancel feeOn-time69%
Air FranceCheapest$405Average$554FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$436Average$575FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$464Average$614FlexibilityNo cancel feeOn-time76%

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