$353+ Cheap flights from Ireland to Colorado
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 5/16. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — DEN
May 31 — Jun 71
Round-trip
1 adult, Economy
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Find cheap flights from Ireland to Colorado with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Ireland to Colorado
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Cheapest flights from Ireland to ColoradoExplore the most affordable flight options available from Ireland to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 1, 2026.
Explore the most affordable flight options available from Ireland to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 1, 2026.
This Finnair 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/289:30 am
DUB
- DEN
1 stop21h 29m
Multiple Airlines
Thu 6/46:35 pm
DEN
- DUB
1 stop16h 20m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$533
This Finnair 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1812:40 pm
DUB
- DEN
1 stop14h 15m
Finnair
Mon 6/112:39 pm
DEN
- DUB
1 stop14h 06m
Finnair
Deal found 4/30![Finnair logo]()
$535
This Expedia deal was found by Cheapflights users on 4/28. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/119:30 am
DUB
- DEN
1 stop20h 15m
Finnair
Mon 5/252:21 pm
DEN
- DUB
1 stop14h 29m
Finnair
Deal found 4/28![Finnair logo]()
$537
This TravelUp deal was found by Cheapflights users on 4/26. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/179:30 am
DUB
- DEN
1 stop14h 32m
Multiple Airlines
Mon 6/19:06 am
DEN
- DUB
1 stop19h 44m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$539
This Flighttix 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1811:45 am
DUB
- DEN
2 stops17h 14m
Multiple Airlines
Wed 6/35:35 pm
DEN
- DUB
1 stop11h 15m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$540
This Flighttix 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/1411:45 am
DUB
- DEN
2 stops19h 00m
Multiple Airlines
Thu 5/285:35 pm
DEN
- DUB
1 stop11h 15m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$543
This Aer Lingus 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 Aer Lingus is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/173:25 pm
DUB
- DEN
Nonstop9h 50m
Aer Lingus
Wed 6/38:00 pm
DEN
- DUB
Nonstop8h 45m
Aer Lingus
Deal found 4/29![Aer Lingus logo]()
$544
This Finnair deal was found by Cheapflights users on 4/27. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/179:30 am
DUB
- DEN
1 stop20h 15m
Finnair
Wed 6/32:34 pm
DEN
- DUB
1 stop14h 16m
Finnair
Deal found 4/27![Finnair logo]()
$545
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 5/1312:40 pm
DUB
- DEN
1 stop14h 15m
American Airlines
Fri 5/295:35 pm
DEN
- DUB
1 stop11h 15m
American Airlines
Deal found 4/30![American Airlines logo]()
$549
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/179:30 am
DUB
- DEN
1 stop20h 15m
American Airlines
Mon 6/18:47 am
DEN
- DUB
1 stop14h 43m
American Airlines
Deal found 5/1![American Airlines logo]()
$550
This KLM deal was found by Cheapflights users on 4/27. 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.
Fri 6/121:05 pm
SNN
- DEN
1 stop16h 40m
KLM
Fri 6/1911:59 pm
DEN
- SNN
1 stop28h 11m
KLM
Deal found 4/27![KLM logo]()
$637
This Delta deal was found by Cheapflights users on 4/27. 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.
Fri 6/121:05 pm
SNN
- DEN
2 stops31h 59m
Delta
Fri 6/196:00 am
DEN
- SNN
2 stops22h 10m
Delta
Deal found 4/27![Delta logo]()
$651
Best flights from Ireland to ColoradoDiscover carefully curated flight deals from Ireland to Colorado that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 1, 2026.
Discover carefully curated flight deals from Ireland to Colorado that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 1, 2026.
This Finnair 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/179:30 am
DUB
- DEN
1 stop20h 15m
Finnair
Mon 6/112:39 pm
DEN
- DUB
1 stop14h 06m
Finnair
Deal found 5/1![Finnair logo]()
$536
This Aer Lingus 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 Aer Lingus is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/173:25 pm
DUB
- DEN
Nonstop9h 50m
Aer Lingus
Wed 6/38:00 pm
DEN
- DUB
Nonstop8h 45m
Aer Lingus
Deal found 4/29![Aer Lingus logo]()
$544
This KLM deal was found by Cheapflights users on 4/27. 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.
Fri 6/121:05 pm
SNN
- DEN
1 stop16h 40m
KLM
Fri 6/1911:59 pm
DEN
- SNN
1 stop28h 11m
KLM
Deal found 4/27![KLM logo]()
$637
This KLM deal was found by Cheapflights users on 4/28. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1111:10 am
DUB
- DEN
2 stops16h 05m
Multiple Airlines
Mon 5/2511:25 am
DEN
- DUB
1 stop14h 20m
Multiple Airlines
Deal found 4/28![Multiple Airlines logo]()
$642
This Delta deal was found by Cheapflights users on 4/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/115:55 am
DUB
- DEN
2 stops16h 41m
Delta
Mon 5/255:30 am
DEN
- DUB
2 stops19h 25m
Delta
Deal found 4/28![Delta logo]()
$643
This British Airways 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/257:10 am
ORK
- DEN
1 stop16h 20m
British Airways
Tue 9/110:44 am
DEN
- ORK
2 stops17h 01m
British Airways
Deal found 4/30![British Airways logo]()
$869
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Thu 5/2812:30 pm
SNN
- DEN
2 stops16h 34m
United Airlines
Mon 6/11:41 pm
DEN
- SNN
1 stop13h 34m
United Airlines
Deal found 4/28![United Airlines logo]()
$977
This American Airlines deal was found by Cheapflights users on 4/27. 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 6/237:30 am
SNN
- DEN
2 stops23h 47m
American Airlines
Sun 7/56:35 pm
DEN
- SNN
1 stop19h 00m
American Airlines
Deal found 4/27![American Airlines logo]()
$982
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/158:30 pm
ORK
- DEN
2 stops30h 58m
Air Canada
Tue 5/1911:25 am
DEN
- ORK
2 stops20h 45m
Air Canada
Deal found 4/30![Air Canada logo]()
$1,184
This Delta deal was found by Cheapflights users on 4/27. 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.
Fri 6/121:05 pm
SNN
- DEN
2 stops31h 59m
Delta
Fri 6/196:00 am
DEN
- SNN
2 stops22h 10m
Delta
Deal found 4/27![Delta logo]()
$651
This Finnair 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/239:30 am
DUB
- DEN
1 stop21h 47m
Finnair
Wed 7/812:39 pm
DEN
- DUB
1 stop14h 06m
Finnair
Deal found 4/30![Finnair logo]()
$721
This Delta deal was found by Cheapflights users on 4/27. 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.
Wed 5/138:55 am
DUB
- DEN
2 stops18h 20m
Delta
Sun 5/179:49 am
DEN
- DUB
1 stop15h 56m
Delta
Deal found 4/27![Delta logo]()
$774
This Finnair deal was found by Cheapflights users on 4/27. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/239:30 am
DUB
- DEN
1 stop21h 29m
Multiple Airlines
Mon 8/316:40 pm
DEN
- DUB
1 stop17h 55m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$884
This Delta deal was found by Cheapflights users on 4/26. 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 6/15:55 am
DUB
- DEN
2 stops16h 41m
Delta
Mon 6/157:05 am
DEN
- DUB
2 stops17h 50m
Delta
Deal found 4/26![Delta logo]()
$775
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.
Fri 5/1510:50 am
ORK
- DEN
2 stops18h 50m
KLM
Tue 5/195:40 pm
DEN
- ORK
1 stop14h 00m
KLM
Deal found 4/30![KLM logo]()
$946
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/201:25 pm
DUB
- DEN
2 stops16h 15m
Delta
Fri 7/104:08 pm
DEN
- DUB
2 stops13h 32m
Delta
Deal found 5/1![Delta logo]()
$793
This KLM 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/296:15 am
ORK
- DEN
2 stops16h 21m
KLM
Fri 6/511:30 am
DEN
- ORK
2 stops15h 50m
KLM
Deal found 5/1![KLM logo]()
$987
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/179:20 am
DUB
- COS
2 stops19h 44m
United Airlines
Mon 9/211:51 pm
COS
- DUB
2 stops12h 54m
United Airlines
Deal found 4/29![United Airlines logo]()
$1,132
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1712:40 pm
DUB
- COS
1 stop17h 17m
American Airlines
Mon 9/218:00 am
COS
- DUB
1 stop18h 45m
American Airlines
Deal found 4/29![American Airlines logo]()
$1,140
This BusinessClass 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/298:30 pm
ORK
- DEN
2 stops33h 44m
Multiple Airlines
Fri 6/56:35 pm
DEN
- ORK
1 stop18h 15m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$1,043
This British Airways 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/308:30 pm
ORK
- DEN
1 stop26h 50m
British Airways
Mon 6/812:15 pm
DEN
- ORK
2 stops15h 30m
British Airways
Deal found 4/30![British Airways logo]()
$1,156
This Delta deal was found by Cheapflights users on 4/27. 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 6/75:55 am
DUB
- DEN
2 stops18h 44m
Delta
Sat 6/277:05 am
DEN
- DUB
2 stops18h 40m
Delta
Deal found 4/27![Delta logo]()
$801
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 6/169:50 am
DUB
- COS
2 stops32h 20m
United Airlines
Fri 7/312:11 pm
COS
- DUB
1 stop14h 34m
United Airlines
Deal found 4/30![United Airlines logo]()
$1,132
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.
Mon 9/78:55 am
DUB
- DEN
2 stops20h 34m
Delta
Mon 9/285:40 pm
DEN
- DUB
1 stop14h 45m
Delta
Deal found 4/29![Delta logo]()
$937
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.
Mon 6/159:50 am
DUB
- COS
2 stops29h 51m
United Airlines
Mon 6/2212:56 pm
COS
- DUB
2 stops14h 44m
United Airlines
Deal found 4/30![United Airlines logo]()
$1,249
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.
Fri 5/155:10 pm
ORK
- DEN
2 stops36h 30m
Delta
Tue 5/195:40 pm
DEN
- ORK
1 stop14h 00m
Delta
Deal found 4/30![Delta logo]()
$969
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.
Sun 6/141:05 pm
SNN
- DEN
1 stop28h 48m
Delta
Sun 6/2112:10 pm
DEN
- SNN
1 stop16h 00m
Delta
Deal found 4/30![Delta logo]()
$1,009
This Delta deal was found by Cheapflights users on 4/27. 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 6/231:05 pm
SNN
- DEN
2 stops29h 01m
Delta
Sun 7/56:05 am
DEN
- SNN
2 stops22h 05m
Delta
Deal found 4/27![Delta logo]()
$1,031
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/296:15 am
ORK
- DEN
2 stops21h 00m
Delta
Fri 6/51:50 pm
DEN
- ORK
2 stops19h 45m
Delta
Deal found 5/1![Delta logo]()
$1,090
Last-minute flights from Ireland to ColoradoDiscover last-minute flight deals from Ireland to Colorado. Data last updated May 1, 2026 and is based on user searches.
Discover last-minute flight deals from Ireland to Colorado. Data last updated May 1, 2026 and is based on user searches.
This British Airways deal was found by Cheapflights users on 4/27. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/78:30 pm
ORK
- DEN
2 stops33h 15m
British Airways
Mon 5/115:44 pm
DEN
- ORK
2 stops23h 06m
British Airways
Deal found 4/27![British Airways logo]()
$693
This Expedia deal was found by Cheapflights users on 4/28. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/119:30 am
DUB
- DEN
1 stop20h 15m
Finnair
Mon 5/252:21 pm
DEN
- DUB
1 stop14h 29m
Finnair
Deal found 4/28![Finnair logo]()
$537
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 5/1312:40 pm
DUB
- DEN
1 stop14h 15m
American Airlines
Fri 5/295:35 pm
DEN
- DUB
1 stop11h 15m
American Airlines
Deal found 4/30![American Airlines logo]()
$549
This Flighttix 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/1411:45 am
DUB
- DEN
2 stops19h 00m
Multiple Airlines
Thu 5/285:35 pm
DEN
- DUB
1 stop11h 15m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$543
This TravelUp deal was found by Cheapflights users on 4/26. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/179:30 am
DUB
- DEN
1 stop14h 32m
Multiple Airlines
Mon 6/19:06 am
DEN
- DUB
1 stop19h 44m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$539
This Aer Lingus 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 Aer Lingus is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/173:25 pm
DUB
- DEN
Nonstop9h 50m
Aer Lingus
Wed 6/38:00 pm
DEN
- DUB
Nonstop8h 45m
Aer Lingus
Deal found 4/29![Aer Lingus logo]()
$544
This Finnair deal was found by Cheapflights users on 4/27. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/179:30 am
DUB
- DEN
1 stop20h 15m
Finnair
Wed 6/32:34 pm
DEN
- DUB
1 stop14h 16m
Finnair
Deal found 4/27![Finnair logo]()
$545
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/179:30 am
DUB
- DEN
1 stop20h 15m
American Airlines
Mon 6/18:47 am
DEN
- DUB
1 stop14h 43m
American Airlines
Deal found 5/1![American Airlines logo]()
$550
This Finnair 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1812:40 pm
DUB
- DEN
1 stop14h 15m
Finnair
Mon 6/112:39 pm
DEN
- DUB
1 stop14h 06m
Finnair
Deal found 4/30![Finnair logo]()
$535
This Flighttix 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1811:45 am
DUB
- DEN
2 stops17h 14m
Multiple Airlines
Wed 6/35:35 pm
DEN
- DUB
1 stop11h 15m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$540
This Finnair 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/289:30 am
DUB
- DEN
1 stop21h 29m
Multiple Airlines
Thu 6/46:35 pm
DEN
- DUB
1 stop16h 20m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$533
This American Airlines deal was found by Cheapflights users on 4/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/289:15 pm
SNN
- DEN
2 stops26h 30m
American Airlines
Mon 6/111:59 pm
DEN
- SNN
2 stops22h 26m
American Airlines
Deal found 4/28![American Airlines logo]()
$735
One-way flights from Ireland to ColoradoSearch for one-way flight options from Ireland to Colorado. Find affordable one-way fares based on user searches. Data last updated May 1, 2026.
Search for one-way flight options from Ireland to Colorado. Find affordable one-way fares based on user searches. Data last updated May 1, 2026.
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/1611:20 am
DUB
- DEN
2 stops31h 00m
WestJet
Deal found 5/1![WestJet logo]()
$353
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1910:40 am
DUB
- DEN
2 stops31h 40m
WestJet
Deal found 4/30![WestJet logo]()
$354
This Kiwi.com deal was found by Cheapflights users on 4/26. 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 6/1710:40 am
DUB
- DEN
2 stops31h 40m
WestJet
Deal found 4/26![WestJet logo]()
$364
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2711:30 am
DUB
- DEN
1 stop18h 16m
JetBlue
Deal found 5/1![JetBlue logo]()
$382
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/121:00 pm
DUB
- DEN
1 stop29h 20m
WestJet
Deal found 4/30![WestJet logo]()
$390
This Kiwi.com deal was found by Cheapflights users on 4/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/1910:40 am
DUB
- DEN
2 stops31h 40m
WestJet
Deal found 4/28![WestJet logo]()
$392
This FlightHub deal was found by Cheapflights users on 4/28. 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.
Sat 6/2011:20 am
DUB
- DEN
2 stops31h 00m
WestJet
Deal found 4/28![WestJet logo]()
$399
This Kiwi.com deal was found by Cheapflights users on 4/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/56:30 am
SNN
- DEN
3 stops59h 50m
Multiple Airlines
Deal found 4/28![Multiple Airlines logo]()
$534
This Kiwi.com deal was found by Cheapflights users on 4/26. 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 6/138:15 pm
ORK
- DEN
2 stops46h 05m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$579
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/308:00 am
ORK
- DEN
3 stops37h 32m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$581
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/67:30 am
SNN
- DEN
2 stops17h 45m
Aer Lingus
Deal found 5/1![Aer Lingus logo]()
$583
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/239:15 pm
SNN
- DEN
2 stops28h 00m
Aer Lingus
Deal found 5/1![Aer Lingus logo]()
$586
Find flight deals from Ireland to Colorado
Keep the following information in mind while searching for Ireland to Colorado flight deals. Data was last updated May 1, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $533 (Finnair) |
One-way from | $353 (FlightHub) |
Popular in | August |
Cheapest in | September |
Average price | $888 |
Good one-way deal | $759 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Ireland to Colorado 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, 2026.
Use the filters below to find and compare flights from Ireland to Colorado that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
DublinDenver
DUB - DEN
DUBDEN
Dublin
Sun 5/17
9:30 am-10:45 pm
1 stop20h 15m
Denver Intl
Mon 6/1
12:39 pm-9:45 am
1 stop14h 06m
$536
Quickest round-trip
DublinDenver
DUB - DEN
DUBDEN
Dublin
Sun 5/17
3:25 pm-6:15 pm
Nonstop9h 50m
Denver Intl
Wed 6/3
8:00 pm-11:45 am
Nonstop8h 45m
$544
ShannonDenver
SNN - DEN
SNNDEN
Shannon
Fri 6/12
1:05 pm-10:45 pm
1 stop16h 40m
Denver Intl
Fri 6/19
11:59 pm-11:10 am
1 stop28h 11m
$637
DublinDenver
DUB - DEN
DUBDEN
Dublin
Mon 5/11
11:10 am-8:15 pm
2 stops16h 05m
Denver Intl
Mon 5/25
11:25 am-8:45 am
1 stop14h 20m
$642
DublinDenver
DUB - DEN
DUBDEN
Dublin
Mon 5/11
5:55 am-3:36 pm
2 stops16h 41m
Denver Intl
Mon 5/25
5:30 am-7:55 am
2 stops19h 25m
$643
ShannonDenver
SNN - DEN
SNNDEN
Shannon
Fri 6/12
1:05 pm-2:04 pm
2 stops31h 59m
Denver Intl
Fri 6/19
6:00 am-11:10 am
2 stops22h 10m
$651
DublinDenver
DUB - DEN
DUBDEN
Dublin
Tue 6/23
9:30 am-12:17 am
1 stop21h 47m
Denver Intl
Wed 7/8
12:39 pm-9:45 am
1 stop14h 06m
$721
DublinDenver
DUB - DEN
DUBDEN
Dublin
Wed 5/13
8:55 am-8:15 pm
2 stops18h 20m
Denver Intl
Sun 5/17
9:49 am-8:45 am
1 stop15h 56m
$774
DublinDenver
DUB - DEN
DUBDEN
Dublin
Mon 6/1
5:55 am-3:36 pm
2 stops16h 41m
Denver Intl
Mon 6/15
7:05 am-7:55 am
2 stops17h 50m
$775
DublinDenver
DUB - DEN
DUBDEN
Dublin
Wed 5/20
1:25 pm-10:40 pm
2 stops16h 15m
Denver Intl
Fri 7/10
4:08 pm-12:40 pm
2 stops13h 32m
$793
Showing 1-10 of 49 resultsSorted by cheapest first
Best time to book a flight from Ireland to Colorado
Have a flexible travel schedule? Discover the best time to fly to Colorado from Ireland with our price prediction graph.
DUB-DEN
SNN-DEN
ORK-DEN
DUB-COS
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 Ireland to Colorado
IE0-USCO
DUB-DEN
SNN-DEN
ORK-DEN
DUB-COS
How far ahead should I book a flight from Ireland to Colorado?
The price you pay for your flight from Ireland to Colorado may vary depending on when you book. For the best chance of a lower fare, look to book 90 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from Ireland to Colorado?
Currently, May is the cheapest month in which you can book a flight from Ireland to Colorado (average of $386). Flying from Ireland to Colorado in July is currently the most expensive (average of $695). 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.
Reviews of airlines servicing Colorado
Get insights into the airlines that provide service to Colorado. 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 Colorado. Reviews last updated May 1, 2026.
Read reviews from past customers who have flown United Airlines,Aer Lingus, andAmerican Airlines from Ireland to Colorado. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.4
Boarding
7.7
Food
6.6
Crew
8.1
Comfort
7.3
Entertainment
7.1
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
DFW - EWR
Overall
7.4
Boarding
7.7
Food
6.6
Crew
8.1
Comfort
7.3
Entertainment
7.1
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
DFW - EWR
Overall
7.4
Boarding
7.7
Food
6.6
Crew
8.1
Comfort
7.3
Entertainment
7.1
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
DFW - EWR
Overall
7.4
Boarding
7.7
Food
6.6
Crew
8.1
Comfort
7.3
Entertainment
7.1
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
DFW - EWR
Related info for your journey
Find useful and relevant information for your journey from Ireland to Colorado. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Alternative routes for Ireland to Colorado
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Colorado by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Ireland to Colorado by cabin class
Find flights from Ireland to Colorado, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Ireland and Colorado flights
Browse other Ireland and Colorado flight options. Last updated on May 1, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from Colorado
Find the right flight back to Ireland after your stay in Colorado
Ireland to Colorado flights
Consider these flights traveling from Ireland to Colorado.
Top 3 airlines flying from Ireland to Colorado
Discover the top 3 airlines that operate flights from Ireland to Colorado. 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, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$433 | Average$779 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$484 | Average$979 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$625 | Average$864 | FlexibilityNo cancel fee | On-time69% |