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Ireland

$252+ 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 3/24. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — DUB
Mar 6 — Mar 131
Fri 3/6
Fri 3/13
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 February 4, 2026.

This oojo deal was found by Cheapflights users on 2/3. 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.
Mon 4/274:40 pm
DEN
-
DUB
1 stop13h 35m
Icelandair
Thu 5/72:15 pm
DUB
-
DEN
1 stop11h 45m
Icelandair
Deal found 2/3$417
This Trip.com deal was found by Cheapflights users on 2/2. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/164:40 pm
DEN
-
DUB
1 stop11h 25m
Icelandair
Wed 4/2912:15 pm
DUB
-
DEN
1 stop13h 45m
Icelandair
Deal found 2/2$423
This Trip.com deal was found by Cheapflights users on 2/3. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/144:40 pm
DEN
-
DUB
1 stop11h 25m
Icelandair
Wed 4/2912:15 pm
DUB
-
DEN
1 stop13h 45m
Icelandair
Deal found 2/3$427
This Mytrip deal was found by Cheapflights users on 2/2. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/263:40 pm
DEN
-
DUB
1 stop11h 35m
Icelandair
Thu 3/511:30 am
DUB
-
DEN
1 stop13h 35m
Icelandair
Deal found 2/2$428
This oojo deal was found by Cheapflights users on 2/2. 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.
Mon 3/23:40 pm
DEN
-
DUB
1 stop11h 35m
Icelandair
Mon 3/911:30 am
DUB
-
DEN
1 stop13h 35m
Icelandair
Deal found 2/2$429
This oojo deal was found by Cheapflights users on 2/2. 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.
Tue 4/74:40 pm
DEN
-
DUB
1 stop11h 25m
Icelandair
Thu 4/162:15 pm
DUB
-
DEN
1 stop11h 45m
Icelandair
Deal found 2/2$435
This Kiwi.com deal was found by Cheapflights users on 2/2. 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.
Sat 4/254:40 pm
DEN
-
DUB
1 stop11h 25m
Icelandair
Thu 5/72:15 pm
DUB
-
DEN
1 stop11h 45m
Icelandair
Deal found 2/2$437
This FlightHub deal was found by Cheapflights users on 2/3. 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 4/134:40 pm
DEN
-
DUB
1 stop13h 35m
Icelandair
Wed 4/2912:15 pm
DUB
-
DEN
1 stop13h 45m
Icelandair
Deal found 2/3$439
This oojo deal was found by Cheapflights users on 2/3. 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.
Tue 4/284:40 pm
DEN
-
DUB
1 stop11h 25m
Icelandair
Tue 5/122:15 pm
DUB
-
DEN
1 stop11h 45m
Icelandair
Deal found 2/3$442
This Kiwi.com deal was found by Cheapflights users on 2/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/235:20 pm
DEN
-
DUB
1 stop17h 50m
Lufthansa
Mon 3/305:45 pm
DUB
-
DEN
1 stop27h 35m
Lufthansa
Deal found 2/1$448
This Air Canada deal was found by Cheapflights users on 2/3. 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.
Thu 3/57:00 am
COS
-
DUB
2 stops17h 10m
Air Canada
Mon 3/98:00 am
DUB
-
COS
2 stops43h 04m
Air Canada
Deal found 2/3$466
This United Airlines deal was found by Cheapflights users on 2/3. 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 3/411:36 am
COS
-
DUB
1 stop13h 34m
United Airlines
Wed 3/118:00 am
DUB
-
COS
2 stops19h 44m
United Airlines
Deal found 2/3$481

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 February 4, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$418
(oojo)

One-way from

$252
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$495

Good round-trip deal

$614 or less

Good one-way deal

$442 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 ($181 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 February 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 February 4, 2026.
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

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Tue 4/28

4:40 pm-11:05 am

1 stop11h 25m

Dublin

Tue 5/12

2:15 pm-7:00 pm

1 stop11h 45m

$442

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Mon 5/4

4:40 pm-1:15 pm

1 stop13h 35m

Dublin

Sun 5/10

12:15 pm-7:00 pm

1 stop13h 45m

$449

Colorado SpringsDublin

COS - DUB

COSDUB

Colorado Springs

Thu 3/5

7:00 am-7:10 am

2 stops17h 10m

Dublin

Mon 3/9

8:00 am-9:04 pm

2 stops43h 04m

$466

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Wed 4/1

7:45 am-7:20 am

1 stop16h 35m

Dublin

Wed 4/29

9:50 am-4:35 pm

1 stop13h 45m

$479

Colorado SpringsDublin

COS - DUB

COSDUB

Colorado Springs

Wed 3/4

11:36 am-8:10 am

1 stop13h 34m

Dublin

Wed 3/11

8:00 am-9:44 pm

2 stops19h 44m

$481

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Mon 3/9

11:35 am-9:20 am

1 stop15h 45m

Dublin

Wed 3/25

9:45 am-7:51 pm

1 stop16h 06m

$485

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Tue 3/10

11:35 am-9:20 am

1 stop15h 45m

Dublin

Tue 3/31

11:10 am-7:51 pm

2 stops15h 41m

$490

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Sun 3/15

6:20 am-7:45 am

1 stop19h 25m

Dublin

Wed 3/25

9:45 am-10:31 pm

2 stops18h 46m

$490

Grand JunctionDublin

GJT - DUB

GJTDUB

Grand Junction Regnl

Fri 2/27

11:26 am-10:20 am

2 stops15h 54m

Dublin

Tue 3/3

9:30 am-8:30 pm

2 stops18h 00m

$490

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Tue 3/10

7:05 am-9:20 am

2 stops20h 15m

Dublin

Wed 3/25

9:45 am-4:00 pm

1 stop12h 15m

$490

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/3

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, 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 $654). 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, 2 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 11h 25m. Fly via Icelandair, Air Canada, or KLM to get the fastest option. Airlines will cover a distance of 4378 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 $288 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 $654). 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 February 4, 2026.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$131Average$655FlexibilityNo cancel feeOn-time62%
IcelandairCheapest$356Average$474FlexibilityNo cancel feeOn-time76%
KLMCheapest$362Average$663FlexibilityNo cancel feeOn-time75%
Air CanadaCheapest$383Average$579FlexibilityNo cancel feeOn-time67%
IberiaCheapest$387Average$568FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$387Average$728FlexibilityNo cancel feeOn-time69%
DeltaCheapest$391Average$660FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$402Average$585FlexibilityNo cancel feeOn-time70%
Air FranceCheapest$405Average$663FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$432Average$622FlexibilityNo cancel feeOn-time76%

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