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Ireland

$317+ 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 7/25. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — DUB
Jun 13 — Jun 201
Sat 6/13
Sat 6/20
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 May 14, 2026.

This KLM deal was found by Cheapflights users on 5/11. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/16:30 am
DEN
-
SNN
1 stop21h 40m
KLM
Tue 9/81:05 pm
SNN
-
DEN
1 stop16h 44m
KLM
Deal found 5/11$708
This KLM deal was found by Cheapflights users on 5/13. 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 9/16:30 am
DEN
-
SNN
1 stop21h 40m
Multiple Airlines
Tue 9/81:05 pm
SNN
-
DEN
2 stops35h 26m
Multiple Airlines
Deal found 5/13$713
This KLM deal was found by Cheapflights users on 5/11. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/56:30 am
DEN
-
SNN
1 stop21h 40m
KLM
Wed 9/161:05 pm
SNN
-
DEN
1 stop16h 44m
KLM
Deal found 5/11$718
This KLM deal was found by Cheapflights users on 5/12. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/510:30 am
DEN
-
SNN
2 stops17h 40m
Multiple Airlines
Wed 9/161:05 pm
SNN
-
DEN
2 stops35h 53m
Multiple Airlines
Deal found 5/12$723
This deal was found by Cheapflights users on 5/9. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1011:15 am
DEN
-
SNN
1 stop13h 15m
United Airlines
Sat 9/199:30 am
SNN
-
DEN
1 stop13h 55m
United Airlines
Deal found 5/9$728
This United Airlines deal was found by Cheapflights users on 5/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/293:46 pm
DEN
-
SNN
1 stop11h 29m
United Airlines
Wed 10/712:30 pm
SNN
-
DEN
1 stop12h 40m
United Airlines
Deal found 5/11$748
This United Airlines deal was found by Cheapflights users on 5/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1011:59 pm
DEN
-
SNN
1 stop27h 16m
United Airlines
Tue 10/2012:30 pm
SNN
-
DEN
1 stop17h 35m
United Airlines
Deal found 5/12$754
This United Airlines deal was found by Cheapflights users on 5/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/133:35 pm
DEN
-
SNN
1 stop11h 40m
United Airlines
Sun 5/249:30 am
SNN
-
DEN
1 stop15h 43m
United Airlines
Deal found 5/11$758
This United Airlines deal was found by Cheapflights users on 5/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1012:11 pm
COS
-
DUB
1 stop14h 34m
United Airlines
Thu 8/279:50 am
DUB
-
COS
2 stops31h 43m
United Airlines
Deal found 5/12$765
This Orbitz deal was found by Cheapflights users on 5/12. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/216:32 pm
COS
-
DUB
2 stops30h 13m
Air Canada
Sun 9/279:50 am
DUB
-
COS
2 stops29h 50m
Air Canada
Deal found 5/12$771
This United Airlines deal was found by Cheapflights users on 5/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/711:55 am
COS
-
SNN
1 stop12h 35m
United Airlines
Fri 9/119:30 am
SNN
-
COS
1 stop19h 23m
United Airlines
Deal found 5/11$791
This KLM deal was found by Cheapflights users on 5/12. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/106:00 am
COS
-
DUB
1 stop19h 45m
KLM
Thu 8/2711:00 am
DUB
-
COS
1 stop17h 54m
KLM
Deal found 5/12$797

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 May 14, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$708
(KLM)

One-way from

$317
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$698

Good round-trip deal

$1,020 or less

Good one-way deal

$541 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. 21% potential increase in price ($171 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($33 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
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 May 14, 2026.
Use the filters below to find and compare flights from Colorado to Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverShannon

DEN - SNN

DENSNN

Denver Intl

Tue 9/1

12:20 pm-11:10 am

1 stop15h 50m

Shannon

Tue 9/8

1:05 pm-10:49 pm

1 stop16h 44m

$709

DenverShannon

DEN - SNN

DENSNN

Denver Intl

Mon 8/31

12:55 am-11:10 am

2 stops27h 15m

Shannon

Tue 9/8

1:05 pm-10:29 pm

2 stops16h 24m

$713

DenverShannon

DEN - SNN

DENSNN

Denver Intl

Tue 9/1

6:30 am-11:10 am

1 stop21h 40m

Shannon

Tue 9/8

1:05 pm-5:31 pm

2 stops35h 26m

$713

DenverShannon

DEN - SNN

DENSNN

Denver Intl

Tue 9/29

12:35 pm-10:15 am

1 stop14h 40m

Shannon

Wed 10/7

12:30 pm-6:10 pm

1 stop12h 40m

$748

DenverShannon

DEN - SNN

DENSNN

Denver Intl

Tue 9/15

12:20 pm-11:10 am

1 stop15h 50m

Shannon

Sun 9/20

1:05 pm-10:49 pm

1 stop16h 44m

$749

Colorado SpringsDublin

COS - DUB

COSDUB

Colorado Springs

Mon 8/10

5:44 am-9:45 am

1 stop21h 01m

Dublin

Thu 8/27

9:50 am-10:33 am

2 stops31h 43m

$765

Colorado SpringsShannon

COS - SNN

COSSNN

Colorado Springs

Mon 9/7

11:55 am-7:30 am

1 stop12h 35m

Shannon

Fri 9/11

9:30 am-9:53 pm

1 stop19h 23m

$791

Colorado SpringsDublin

COS - DUB

COSDUB

Colorado Springs

Mon 8/10

6:00 am-8:45 am

1 stop19h 45m

Dublin

Thu 8/27

11:00 am-9:54 pm

1 stop17h 54m

$797

Colorado SpringsDublin

COS - DUB

COSDUB

Colorado Springs

Mon 9/21

5:45 am-9:45 am

1 stop21h 00m

Dublin

Sun 9/27

9:20 am-4:25 pm

2 stops38h 05m

$830

Grand JunctionDublin

GJT - DUB

GJTDUB

Grand Junction Regnl

Sat 10/10

3:11 pm-7:20 am

2 stops33h 09m

Dublin

Sat 10/17

9:20 am-8:36 pm

2 stops42h 16m

$846

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/13

Showing 1-10 of 46 resultsSorted by cheapest first
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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

How far ahead should I book a flight from Colorado to Ireland?

The best time to book flights from Colorado to Ireland is 84 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, October is the cheapest month in which you can book a flight from Colorado to Ireland (average of $201). Flying from Colorado to Ireland in September is currently the most expensive (average of $1,447). 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 14, 2026.

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, 1 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 14h 34m. Fly via KLM, Delta, or United 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. Delta flights start at $308 while deals on Icelandair start at $313 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, October is the cheapest month in which you can book a flight from Colorado to Ireland (average of $201). Flying from Colorado to Ireland in September is currently the most expensive (average of $1,447). 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 14, 2026.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$131Average$701FlexibilityNo cancel feeOn-time62%
IcelandairCheapest$348Average$439FlexibilityNo cancel feeOn-time76%
SWISSCheapest$356Average$458FlexibilityNo cancel feeOn-time79%
KLMCheapest$362Average$635FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$366Average$720FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$377Average$547FlexibilityNo cancel feeOn-time67%
IberiaCheapest$387Average$628FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$402Average$587FlexibilityNo cancel feeOn-time70%
DeltaCheapest$403Average$753FlexibilityNo cancel feeOn-timeN/A
Air FranceCheapest$405Average$643FlexibilityNo cancel feeOn-time77%

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