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$293+ 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 1/13. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — DUB
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap 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 December 18, 2025.

This United Airlines deal was found by Cheapflights users on 12/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/314:05 pmDEN - DUB
1 stop11h 15mUnited Airlines
Fri 3/278:00 amDUB - DEN
1 stop14h 40mUnited Airlines
Deal found 12/17$568
This KAYAK deal was found by Cheapflights users on 12/17. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3111:20 amDEN - DUB
1 stop16h 00mLufthansa
Tue 3/245:00 amDUB - DEN
1 stop18h 00mLufthansa
Deal found 12/17$569
This United Airlines deal was found by Cheapflights users on 12/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/314:05 pmDEN - DUB
1 stop11h 15mUnited Airlines
Wed 3/258:00 amDUB - DEN
2 stops21h 40mUnited Airlines
Deal found 12/17$579
This KAYAK deal was found by Cheapflights users on 12/17. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/314:05 pmDEN - DUB
1 stop11h 15mLufthansa
Mon 3/235:55 pmDUB - DEN
1 stop32h 00mLufthansa
Deal found 12/17$581
This Delta deal was found by Cheapflights users on 12/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3012:20 amDEN - DUB
2 stops25h 25mDelta
Tue 3/248:50 amDUB - DEN
2 stops19h 28mDelta
Deal found 12/17$586
This Delta deal was found by Cheapflights users on 12/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3012:20 amDEN - DUB
2 stops25h 25mDelta
Thu 3/2611:30 amDUB - DEN
2 stops30h 24mDelta
Deal found 12/17$588
This KAYAK deal was found by Cheapflights users on 12/17. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3111:20 amDEN - DUB
2 stops23h 25mSWISS
Mon 3/231:20 pmDUB - DEN
2 stops38h 35mSWISS
Deal found 12/17$640
This KAYAK deal was found by Cheapflights users on 12/17. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3111:20 amDEN - DUB
2 stops17h 45mSWISS
Sun 3/226:35 pmDUB - DEN
2 stops50h 55mSWISS
Deal found 12/17$660
This Air Canada deal was found by Cheapflights users on 12/17. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/315:30 pmDEN - DUB
1 stop30h 40mAir Canada
Sun 3/228:00 amDUB - DEN
2 stops41h 55mAir Canada
Deal found 12/17$669

Find flight deals from Colorado to Ireland

Keep the following information in mind while searching for Colorado to Ireland flight deals. Data was last updated December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$403
(oojo)

One-way from

$293
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$692

Good round-trip deal

$691 or less

Good one-way deal

$448 or less
Provider with most accurate pricing for Denver Intl-Dublin flight deals.
Search Deals
Provider most trusted by Cheapflights users for Denver Intl-Dublin flights.
Search Deals
From Colorado to Ireland
Search Deals
One-way flight from Colorado to Ireland
Search Deals
Highest demand for flights based on searches. 22% potential increase in price ($184 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($32 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Colorado to Ireland.
Search Deals
Price to beat on a one-way flight from Colorado to Ireland.
Search Deals

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 December 18, 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

Colorado SpringsDublin

COS - DUB

COSDUB

Colorado Springs

Thu 1/22

11:43 am-8:10 am

1 stop13h 27m

Dublin

Mon 1/26

9:00 am-12:22 pm

2 stops34h 22m

$456

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Mon 4/6

7:15 pm-9:45 am

1 stop31h 30m

Dublin

Tue 4/14

9:50 am-12:10 pm

1 stop33h 20m

$462

Colorado SpringsDublin

COS - DUB

COSDUB

Colorado Springs

Sat 1/31

10:21 am-3:00 pm

2 stops21h 39m

Dublin

Sat 2/7

8:40 pm-8:57 pm

2 stops31h 17m

$467

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Mon 3/2

5:25 pm-5:05 pm

1 stop16h 40m

Dublin

Tue 3/10

6:05 pm-8:05 pm

2 stops32h 00m

$468

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Mon 2/23

5:25 pm-7:40 pm

1 stop19h 15m

Dublin

Thu 3/5

6:05 pm-5:53 pm

2 stops30h 48m

$468

DenverCork

DEN - ORK

DENORK

Denver Intl

Sun 3/1

5:25 pm-9:00 pm

1 stop20h 35m

Cork

Tue 3/31

7:20 am-4:30 pm

1 stop16h 10m

$472

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Tue 3/24

6:25 pm-5:00 pm

1 stop16h 35m

Dublin

Tue 3/31

8:20 pm-4:30 pm

1 stop27h 10m

$474

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Mon 2/23

7:45 am-10:20 am

2 stops19h 35m

Dublin

Wed 3/4

9:00 am-4:40 pm

1 stop14h 40m

$474

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Mon 3/23

6:25 pm-7:40 pm

1 stop19h 15m

Dublin

Mon 3/30

8:55 pm-4:30 pm

1 stop26h 35m

$474

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Tue 4/21

11:15 am-7:20 am

1 stop13h 05m

Dublin

Fri 5/1

9:20 am-8:28 pm

1 stop18h 08m

$474

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 48 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, January is the cheapest month in which you can book a flight from Colorado to Ireland (average of $348). Flying from Colorado to Ireland in June is currently the most expensive (average of $677). 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 December 18, 2025.

When flying from Colorado to Ireland, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 5% versus a flight in the morning.

What is the cheapest day to fly from Colorado to Ireland?

Use this chart to determine the cheapest time to fly round-trip from Colorado to Ireland. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Colorado to Ireland flight should consider departing on Wednesday at noon when fares are most often at their lowest. Tuesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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 13h 27m. Fly via United Airlines, British Airways, or American Airlines to get the fastest option. Airlines will cover a distance of 4434 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    To fly one-way, consider booking your trip with JetBlue, which is currently one of the cheapest options available, starting at $215. WestJet flights start at $234 while deals on Icelandair start at $246 one-way.

  • 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, January is the cheapest month in which you can book a flight from Colorado to Ireland (average of $348). Flying from Colorado to Ireland in June is currently the most expensive (average of $677). 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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$131Average$655FlexibilityNo cancel feeOn-time62%
IcelandairCheapest$360Average$515FlexibilityNo cancel feeOn-time76%
KLMCheapest$362Average$650FlexibilityNo cancel feeOn-time75%
IberiaCheapest$372Average$570FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$385Average$591FlexibilityNo cancel feeOn-time67%
DeltaCheapest$391Average$660FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$396Average$729FlexibilityNo cancel feeOn-time69%
Air FranceCheapest$405Average$554FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$432Average$616FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$458Average$761FlexibilityNo cancel feeOn-time71%

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