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Ireland

$318+ 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 5/25. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — DUB
Apr 27 — May 41
Sun 4/27
Sun 5/4
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 April 22, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$561
(United Airlines)

One-way from

$318
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$574

Good round-trip deal

$764 or less

Good one-way deal

$519 or less
Provider with most accurate pricing for Denver Intl-Dublin flight deals.
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Provider most trusted by Cheapflights users for Denver Intl-Dublin flights.
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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. 27% potential increase in price ($234 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($36 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 22, 2025.

This United Airlines deal was found by Cheapflights users on 4/21. 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.
Mon 5/53:45 pmDEN - SNN
1 stop11h 30mUnited Airlines
Mon 5/1212:30 pmSNN - DEN
1 stop13h 43mUnited Airlines
Deal found 4/21$561
This Iberia deal was found by Cheapflights users on 4/22. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/296:35 pmDEN - DUB
1 stop13h 10mMultiple Airlines
Wed 8/612:40 pmDUB - DEN
1 stop16h 06mMultiple Airlines
Deal found 4/22$567
This Delta deal was found by Cheapflights users on 4/20. 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 7/1512:55 amDEN - DUB
2 stops26h 50mDelta
Fri 7/2512:00 pmDUB - DEN
2 stops17h 56mDelta
Deal found 4/20$568
This Kiwi.com deal was found by Cheapflights users on 4/21. 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 10/87:55 pmDEN - DUB
Nonstop8h 45mAer Lingus
Wed 10/153:25 pmDUB - DEN
Nonstop9h 34mAer Lingus
Deal found 4/21$571
This KLM deal was found by Cheapflights users on 4/20. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/312:20 pmDEN - DUB
1 stop13h 25mKLM
Wed 12/109:45 amDUB - DEN
1 stop21h 02mKLM
Deal found 4/20$573
This Justfly.com deal was found by Cheapflights users on 4/21. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/111:35 amDEN - DUB
1 stop13h 10mAir Canada
Fri 9/129:20 amDUB - DEN
1 stop15h 53mAir Canada
Deal found 4/21$574
This Gurufare deal was found by Cheapflights users on 4/22. 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.
Sun 5/256:35 pmDEN - DUB
1 stop30h 10mBritish Airways
Wed 6/48:20 pmDUB - DEN
1 stop27h 05mBritish Airways
Deal found 4/22$575
This United Airlines deal was found by Cheapflights users on 4/22. 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.
Sat 10/2511:59 pmDEN - DUB
1 stop28h 06mUnited Airlines
Thu 11/611:50 amDUB - DEN
1 stop14h 11mUnited Airlines
Deal found 4/22$578
This oojo deal was found by Cheapflights users on 4/21. 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.
Thu 11/203:40 pmDEN - DUB
1 stop11h 35mIcelandair
Thu 11/2711:30 amDUB - DEN
1 stop13h 35mIcelandair
Deal found 4/21$579
This KLM deal was found by Cheapflights users on 4/22. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/2712:31 pmDEN - SNN
1 stop15h 39mMultiple Airlines
Thu 6/51:05 pmSNN - DEN
1 stop14h 34mMultiple Airlines
Deal found 4/22$596
This Delta deal was found by Cheapflights users on 4/22. 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.
Mon 5/2612:55 amDEN - SNN
2 stops27h 15mDelta
Thu 6/51:05 pmSNN - DEN
2 stops18h 07mDelta
Deal found 4/22$601
This Delta deal was found by Cheapflights users on 4/21. 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.
Sun 9/76:30 pmDEN - ORK
2 stops21h 00mDelta
Tue 9/166:00 amORK - DEN
2 stops16h 30mDelta
Deal found 4/21$608

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 April 22, 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

DenverShannon

DEN - SNN

DENSNN

Denver Intl

Mon 5/5

3:45 pm-10:15 am

1 stop11h 30m

Shannon

Mon 5/12

12:30 pm-7:13 pm

1 stop13h 43m

$561

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Tue 7/15

12:55 am-10:45 am

2 stops26h 50m

Dublin

Fri 7/25

12:00 pm-10:56 pm

2 stops17h 56m

$568

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Sun 5/25

6:35 pm-7:45 am

1 stop30h 10m

Dublin

Wed 6/4

8:20 pm-4:25 pm

1 stop27h 05m

$575

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Sun 7/20

7:50 am-7:45 am

2 stops16h 55m

Dublin

Tue 7/29

9:20 am-10:20 am

2 stops32h 00m

$585

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Sun 5/4

7:55 pm-11:40 am

Nonstop8h 45m

Dublin

Sat 5/10

3:25 pm-5:59 pm

Nonstop9h 34m

$588

DenverShannon

DEN - SNN

DENSNN

Denver Intl

Tue 5/27

12:31 pm-11:10 am

1 stop15h 39m

Shannon

Thu 6/5

1:05 pm-8:39 pm

1 stop14h 34m

$596

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Tue 7/1

11:35 am-7:45 am

1 stop13h 10m

Dublin

Tue 7/29

9:20 am-10:39 pm

2 stops20h 19m

$597

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Mon 5/26

5:50 pm-12:10 pm

1 stop35h 20m

Dublin

Thu 6/5

9:20 am-8:05 pm

2 stops17h 45m

$598

DenverShannon

DEN - SNN

DENSNN

Denver Intl

Mon 5/26

12:55 am-11:10 am

2 stops27h 15m

Shannon

Thu 6/5

1:05 pm-12:12 am

2 stops18h 07m

$601

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Fri 5/2

12:01 pm-9:15 am

1 stop14h 14m

Dublin

Wed 5/21

11:00 am-9:57 pm

1 stop17h 57m

$606

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/21

Showing 1-10 of 46 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 $1,006). 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 April 22, 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.

Rainfall in Ireland by month

Plan your trip to Ireland by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ireland ranges from 1.9 - 3.1 inches per month. October is typically the wettest month, when rainfall can reach 3.1 in. February is typically the driest time to visit Ireland when rainfall is around 1.9 in.

Temperature in Ireland by month

Plan your trip to Ireland by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ireland, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 60.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Ireland

Get insights into the airlines that provide service to Ireland. 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 Ireland. Reviews last updated April 22, 2025.
See what other customers who have flown with Delta, KLM and Finnair from Colorado to Ireland have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,920 reviews

Food

7.3

Comfort

7.9

Crew

8.5

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,920 reviews
Delta
8.0
Very good
7,920 reviews

Food

7.3

Comfort

7.9

Crew

8.5

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,331 reviews
Delta
8.0
Very good
7,920 reviews

Food

7.3

Comfort

7.9

Crew

8.5

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Finnair
7.6
Good
1,272 reviews
Delta
8.0
Very good
7,920 reviews

Food

7.3

Comfort

7.9

Crew

8.5

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
SWISS
7.5
Good
1,582 reviews
Delta
8.0
Very good
7,920 reviews

Food

7.3

Comfort

7.9

Crew

8.5

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,683 reviews
Delta
8.0
Very good
7,920 reviews

Food

7.3

Comfort

7.9

Crew

8.5

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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, 8 users have taken a look at flights from Colorado to Ireland.

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

    To fly one-way, consider booking your trip with WestJet, which is currently one of the cheapest options available, starting at $333. Aer Lingus flights start at $434 while deals on JetBlue start at $493 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, 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 $1,006). 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 April 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$344Average$495FlexibilityNo cancel feeOn-time76%
Air FranceCheapest$416Average$554FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$436Average$783FlexibilityNo cancel feeOn-time70%
Air CanadaCheapest$446Average$563FlexibilityNo cancel feeOn-time67%
KLMCheapest$449Average$577FlexibilityNo cancel feeOn-time75%
DeltaCheapest$454Average$594FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$468Average$731FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$471Average$648FlexibilityNo cancel feeOn-time76%
IberiaCheapest$483Average$632FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$489Average$795FlexibilityNo cancel feeOn-time71%

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