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Ireland

$322+ 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 5/3. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — DUB
May 1 — May 81
Fri 5/1
Fri 5/8
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 April 1, 2026.

This United Airlines deal was found by Cheapflights users on 3/28. 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.
Sun 4/263:40 pm
DEN
-
SNN
1 stop11h 35m
United Airlines
Tue 5/1212:30 pm
SNN
-
DEN
1 stop13h 37m
United Airlines
Deal found 3/28$698
This FlightHub deal was found by Cheapflights users on 3/28. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2812:59 pm
DEN
-
DUB
2 stops39h 51m
Scandinavian Airlines
Wed 10/712:40 pm
DUB
-
DEN
2 stops42h 09m
Scandinavian Airlines
Deal found 3/28$708
This United Airlines deal was found by Cheapflights users on 3/31. 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 9/511:59 pm
DEN
-
SNN
2 stops24h 31m
United Airlines
Tue 9/1512:30 pm
SNN
-
DEN
2 stops16h 09m
United Airlines
Deal found 3/31$712
This KLM deal was found by Cheapflights users on 3/31. 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 9/511:59 pm
DEN
-
SNN
1 stop28h 11m
KLM
Wed 9/161:05 pm
SNN
-
DEN
1 stop16h 44m
KLM
Deal found 3/31$713
This Air Canada deal was found by Cheapflights users on 3/30. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/95:30 am
GJT
-
DUB
2 stops19h 15m
Air Canada
Fri 8/219:50 am
DUB
-
GJT
2 stops38h 41m
Air Canada
Deal found 3/30$718
This United Airlines deal was found by Cheapflights users on 3/30. 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.
Thu 8/66:00 am
DEN
-
SNN
1 stop18h 30m
United Airlines
Fri 8/219:30 am
SNN
-
DEN
1 stop13h 55m
United Airlines
Deal found 3/30$718
This Expedia deal was found by Cheapflights users on 3/30. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/111:30 pm
GJT
-
DUB
2 stops35h 45m
Air Canada
Wed 8/199:20 am
DUB
-
GJT
2 stops34h 08m
Air Canada
Deal found 3/30$719
This KLM deal was found by Cheapflights users on 3/31. 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 9/51:35 pm
DEN
-
SNN
2 stops14h 35m
Multiple Airlines
Wed 9/161:05 pm
SNN
-
DEN
2 stops17h 40m
Multiple Airlines
Deal found 3/31$722
This Air Canada deal was found by Cheapflights users on 3/30. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/81:33 pm
GJT
-
DUB
2 stops35h 42m
Air Canada
Fri 8/219:50 am
DUB
-
GJT
2 stops35h 46m
Air Canada
Deal found 3/30$723
This United Airlines deal was found by Cheapflights users on 3/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/175:45 am
COS
-
DUB
1 stop21h 00m
United Airlines
Fri 8/219:20 am
DUB
-
COS
2 stops32h 39m
United Airlines
Deal found 3/29$723
This Air Canada deal was found by Cheapflights users on 3/30. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/177:00 am
GJT
-
DUB
2 stops17h 45m
Air Canada
Thu 8/209:20 am
DUB
-
GJT
2 stops42h 16m
Air Canada
Deal found 3/30$726
This United Airlines deal was found by Cheapflights users on 3/30. 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 8/111:30 pm
GJT
-
DUB
2 stops14h 10m
United Airlines
Wed 8/199:20 am
DUB
-
GJT
2 stops39h 11m
United Airlines
Deal found 3/30$727

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 April 1, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$698
(United Airlines)

One-way from

$322
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$619

Good round-trip deal

$797 or less

Good one-way deal

$379 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 ($175 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 April 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 April 1, 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

Sun 4/26

11:38 am-10:15 am

1 stop15h 37m

Shannon

Tue 5/12

12:30 pm-12:44 am

2 stops19h 14m

$698

DenverShannon

DEN - SNN

DENSNN

Denver Intl

Thu 8/6

6:13 am-7:30 am

2 stops18h 17m

Shannon

Fri 8/21

12:30 pm-9:39 pm

2 stops16h 09m

$723

Colorado SpringsDublin

COS - DUB

COSDUB

Colorado Springs

Mon 8/17

12:45 pm-9:45 am

1 stop14h 00m

Dublin

Fri 8/21

9:20 am-10:59 am

2 stops32h 39m

$723

DenverShannon

DEN - SNN

DENSNN

Denver Intl

Mon 8/31

7:05 pm-7:30 am

1 stop29h 25m

Shannon

Sat 9/19

9:30 am-8:55 pm

2 stops18h 25m

$728

DenverShannon

DEN - SNN

DENSNN

Denver Intl

Wed 4/15

5:45 pm-10:15 am

2 stops33h 30m

Shannon

Mon 4/20

12:30 pm-7:31 pm

1 stop14h 01m

$743
Quickest round-trip

DenverShannon

DEN - SNN

DENSNN

Denver Intl

Sun 9/13

1:40 pm-10:15 am

1 stop13h 35m

Shannon

Wed 9/30

12:30 pm-9:18 pm

1 stop15h 48m

$748

DenverShannon

DEN - SNN

DENSNN

Denver Intl

Mon 9/14

6:00 am-7:30 am

2 stops18h 30m

Shannon

Wed 9/30

12:30 pm-9:18 pm

1 stop15h 48m

$753

Colorado SpringsCork

COS - ORK

COSORK

Colorado Springs

Tue 5/5

6:15 am-10:20 am

2 stops21h 05m

Cork

Tue 5/12

5:10 pm-9:27 pm

2 stops35h 17m

$762

Colorado SpringsShannon

COS - SNN

COSSNN

Colorado Springs

Fri 8/21

12:45 pm-7:30 am

1 stop11h 45m

Shannon

Tue 8/25

9:30 am-11:49 pm

2 stops21h 19m

$785

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-10:49 pm

1 stop16h 44m

$788

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 44 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

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 $346). Flying from Colorado to Ireland in June is currently the most expensive (average of $638). 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.

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 15h 37m. Fly via United Airlines, KLM, or Delta to get the fastest option. Airlines will cover a distance of 4309 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, January is the cheapest month in which you can book a flight from Colorado to Ireland (average of $346). Flying from Colorado to Ireland in June is currently the most expensive (average of $638). 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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Newark to Dublin flights
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LaGuardia to Gatwick flights
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Miami to Madrid flights
O'Hare Intl to Heathrow flights
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Boston to Leonardo da Vinci/Fiumicino flights
Los Angeles to Leonardo da Vinci/Fiumicino flights
San Francisco to Heathrow flights
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Dallas/Fort Worth to Heathrow flights
Boston to Gatwick flights
Baltimore to Heathrow flights
Newark to Stansted flights
O'Hare Intl to Charles de Gaulle flights
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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 1, 2026.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$131Average$685FlexibilityNo cancel feeOn-time62%
IcelandairCheapest$351Average$448FlexibilityNo cancel feeOn-time76%
SWISSCheapest$356Average$458FlexibilityNo cancel feeOn-time79%
KLMCheapest$362Average$663FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$374Average$758FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$377Average$573FlexibilityNo cancel feeOn-time67%
IberiaCheapest$387Average$583FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$402Average$585FlexibilityNo cancel feeOn-time70%
DeltaCheapest$403Average$699FlexibilityNo cancel feeOn-timeN/A
Air FranceCheapest$405Average$645FlexibilityNo cancel feeOn-time77%

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