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Ireland

$280+ 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 9/22. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — DUB
May 6 — May 131
Tue 5/6
Tue 5/13
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 May 1, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$483
(American Airlines)

One-way from

$280
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$721

Good round-trip deal

$733 or less

Good one-way deal

$498 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 ($232 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($36 potential savings vs. average RT price).
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Average for round-trip flights in May 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 May 1, 2025.

This American Airlines deal was found by Cheapflights users on 4/30. 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.
Fri 8/89:41 amDEN - SNN
2 stops18h 39mAmerican Airlines
Thu 8/147:40 amSNN - DEN
2 stops22h 14mAmerican Airlines
Deal found 4/30$483
This United Airlines deal was found by Cheapflights users on 4/30. 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 10/221:45 pmGJT - DUB
2 stops13h 35mUnited Airlines
Wed 11/59:00 amDUB - GJT
2 stops43h 57mUnited Airlines
Deal found 4/30$508
This Air Canada deal was found by Cheapflights users on 5/1. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/227:30 amGJT - DUB
3 stops17h 45mMultiple Airlines
Wed 11/59:00 amDUB - GJT
2 stops42h 27mMultiple Airlines
Deal found 5/1$515
This United Airlines deal was found by Cheapflights users on 4/30. 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.
Tue 8/59:40 amDEN - SNN
1 stop14h 50mUnited Airlines
Mon 8/119:30 amSNN - DEN
1 stop15h 42mUnited Airlines
Deal found 4/30$516
This American Airlines deal was found by Cheapflights users on 4/30. 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 10/225:46 amGJT - DUB
1 stop20h 59mAmerican Airlines
Wed 11/511:30 amDUB - GJT
2 stops16h 50mAmerican Airlines
Deal found 4/30$537
This Delta deal was found by Cheapflights users on 4/29. 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.
Sat 8/27:10 amDEN - SNN
1 stop21h 00mDelta
Sat 8/91:05 pmSNN - DEN
1 stop16h 44mDelta
Deal found 4/29$561
This American Airlines deal was found by Cheapflights users on 4/30. 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.
Tue 7/295:22 pmDEN - DUB
1 stop11h 18mAmerican Airlines
Wed 8/69:30 amDUB - DEN
1 stop19h 25mAmerican Airlines
Deal found 4/30$588
This Lufthansa deal was found by Cheapflights users on 5/1. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/155:42 pmDEN - DUB
2 stops34h 18mLufthansa
Tue 11/258:30 amDUB - DEN
1 stop14h 25mLufthansa
Deal found 5/1$589
This Delta deal was found by Cheapflights users on 4/30. 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 8/1910:30 amDEN - DUB
2 stops14h 45mDelta
Tue 8/266:00 amDUB - DEN
2 stops18h 27mDelta
Deal found 4/30$590
This oojo deal was found by Cheapflights users on 5/1. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/224:40 pmDEN - DUB
1 stop13h 35mIcelandair
Sun 9/2812:15 pmDUB - DEN
1 stop13h 40mIcelandair
Deal found 5/1$591
This CrystalTravel deal was found by Cheapflights users on 4/30. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/155:50 pmDEN - DUB
1 stop17h 00mMultiple Airlines
Mon 8/255:45 pmDUB - DEN
1 stop27h 00mMultiple Airlines
Deal found 4/30$596
This KLM deal was found by Cheapflights users on 4/30. 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 4/30$596

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 May 1, 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

Fri 8/8

9:41 am-11:20 am

2 stops18h 39m

Shannon

Thu 8/14

7:40 am-10:54 pm

2 stops22h 14m

$483

Grand JunctionDublin

GJT - DUB

GJTDUB

Grand Junction Regnl

Wed 10/22

1:45 pm-10:20 am

2 stops13h 35m

Dublin

Wed 11/5

9:00 am-9:57 pm

2 stops43h 57m

$508

Grand JunctionDublin

GJT - DUB

GJTDUB

Grand Junction Regnl

Wed 10/22

7:30 am-8:15 am

3 stops17h 45m

Dublin

Wed 11/5

9:00 am-8:27 pm

2 stops42h 27m

$515

DenverShannon

DEN - SNN

DENSNN

Denver Intl

Tue 8/5

9:40 am-7:30 am

1 stop14h 50m

Shannon

Mon 8/11

9:30 am-6:12 pm

1 stop15h 42m

$516

Grand JunctionDublin

GJT - DUB

GJTDUB

Grand Junction Regnl

Wed 10/22

5:46 am-9:45 am

1 stop20h 59m

Dublin

Wed 11/5

11:30 am-9:20 pm

2 stops16h 50m

$537

DenverShannon

DEN - SNN

DENSNN

Denver Intl

Tue 5/27

7:06 am-11:10 am

1 stop21h 04m

Shannon

Thu 6/5

1:05 pm-8:39 pm

1 stop14h 34m

$546

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Tue 7/29

5:22 pm-11:40 am

1 stop11h 18m

Dublin

Wed 8/6

9:30 am-9:55 pm

1 stop19h 25m

$588

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Tue 8/19

10:30 am-8:15 am

2 stops14h 45m

Dublin

Tue 8/26

6:00 am-5:27 pm

2 stops18h 27m

$590

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Fri 8/22

4:40 pm-1:15 pm

1 stop13h 35m

Dublin

Sun 9/28

12:15 pm-6:55 pm

1 stop13h 40m

$591

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Fri 8/15

5:50 pm-5:50 pm

1 stop17h 00m

Dublin

Mon 8/25

5:45 pm-1:45 pm

1 stop27h 00m

$596

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

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 $981). 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 May 1, 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 May 1, 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
7,934 reviews

Crew

8.5

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

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
7,934 reviews
Delta
8.0
Very good
7,934 reviews

Crew

8.5

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

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
1,334 reviews
Delta
8.0
Very good
7,934 reviews

Crew

8.5

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

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
1,275 reviews
Delta
8.0
Very good
7,934 reviews

Crew

8.5

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

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
1,588 reviews
Delta
8.0
Very good
7,934 reviews

Crew

8.5

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

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
8,696 reviews
Delta
8.0
Very good
7,934 reviews

Crew

8.5

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

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 Icelandair, which is currently one of the cheapest options available, starting at $326. WestJet flights start at $337 while deals on JetBlue start at $363 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 $981). 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 May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$344Average$498FlexibilityNo cancel feeOn-time76%
Air FranceCheapest$416Average$554FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$435Average$823FlexibilityNo cancel feeOn-time70%
Air CanadaCheapest$445Average$565FlexibilityNo cancel feeOn-time67%
DeltaCheapest$455Average$664FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$459Average$609FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$469Average$731FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$475Average$649FlexibilityNo cancel feeOn-time76%
IberiaCheapest$483Average$621FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$489Average$793FlexibilityNo cancel feeOn-time71%

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