$360+ 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 2/8. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — DEN
Dec 21 — Dec 281
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
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
Keep the following information in mind while searching for Ireland to Colorado flight deals. Data was last updated November 21, 2025.
Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $566 (Gotogate) |
One-way from | $360 (Kiwi.com) |
Popular in | June |
Cheapest in | September |
Average price | $704 |
Good round-trip deal | $433 or less |
Good one-way deal | $653 or less |
Find flight deals from Ireland to Colorado
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 November 21, 2025.
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 November 21, 2025.
This Icelandair deal was found by Cheapflights users on 11/20. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/511:30 amDUB - DEN
1 stop13h 35mIcelandair
Mon 12/83:40 pmDEN - DUB
1 stop11h 35mIcelandair
Deal found 11/20![Icelandair logo]()
$620
This Iberia deal was found by Cheapflights users on 11/21. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/241:00 pmDUB - DEN
1 stop14h 11mIberia
Thu 1/16:21 amDEN - DUB
1 stop17h 49mIberia
Deal found 11/21![Iberia logo]()
$782
This Finnair deal was found by Cheapflights users on 11/19. 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 12/1611:30 amDUB - DEN
1 stop18h 35mMultiple Airlines
Tue 12/2312:32 pmDEN - DUB
1 stop11h 43mMultiple Airlines
Deal found 11/19![Multiple Airlines logo]()
$793
This Finnair deal was found by Cheapflights users on 11/21. 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.
Wed 12/2411:30 amDUB - DEN
2 stops15h 13mMultiple Airlines
Thu 1/110:30 amDEN - DUB
1 stop13h 40mMultiple Airlines
Deal found 11/21![Multiple Airlines logo]()
$795
This Delta deal was found by Cheapflights users on 11/20. 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 12/511:30 amDUB - DEN
2 stops16h 07mDelta
Mon 12/81:16 pmDEN - DUB
1 stop11h 29mDelta
Deal found 11/20![Delta logo]()
$803
This Delta deal was found by Cheapflights users on 11/20. 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 12/56:00 amORK - DEN
2 stops21h 30mDelta
Tue 12/96:15 amDEN - ORK
2 stops21h 30mDelta
Deal found 11/20![Delta logo]()
$813
This Delta deal was found by Cheapflights users on 11/21. 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 12/246:00 amDUB - DEN
2 stops21h 08mDelta
Thu 1/16:45 amDEN - DUB
2 stops18h 00mDelta
Deal found 11/21![Delta logo]()
$844
This Delta deal was found by Cheapflights users on 11/19. 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 12/36:00 amORK - DEN
2 stops24h 45mDelta
Sun 12/712:04 pmDEN - ORK
2 stops15h 41mDelta
Deal found 11/19![Delta logo]()
$873
This Lufthansa deal was found by Cheapflights users on 11/19. 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.
Thu 12/45:00 amDUB - COS
2 stops20h 18mLufthansa
Mon 12/89:24 amCOS - DUB
1 stop15h 46mLufthansa
Deal found 11/19![Lufthansa logo]()
$915
This Delta deal was found by Cheapflights users on 11/20. 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 12/75:15 pmORK - DEN
2 stops32h 46mDelta
Thu 12/117:10 amDEN - ORK
2 stops20h 35mDelta
Deal found 11/20![Delta logo]()
$993
This lol.travel deal was found by Cheapflights users on 11/20. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/55:35 pmORK - DEN
1 stop28h 55mAer Lingus
Tue 12/97:00 amDEN - ORK
2 stops33h 25mAer Lingus
Deal found 11/20![Aer Lingus logo]()
$1,050
This United Airlines deal was found by Cheapflights users on 11/19. 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 11/1912:05 pmDUB - COS
2 stops16h 54mUnited Airlines
Tue 12/28:30 amCOS - DUB
2 stops16h 00mUnited Airlines
Deal found 11/19![United Airlines logo]()
$1,102
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 November 21, 2025.
Use the filters below to find and compare flights from Ireland to Colorado that are best for you.
Fly from
Ireland
Fly to
Colorado
Route
Depart
Return
Price
DublinDenver
DUB - DEN
DUBDEN
Dublin
Fri 12/5
11:30 am-6:05 pm
1 stop13h 35m
Denver Intl
Mon 12/8
3:40 pm-10:15 am
1 stop11h 35m
$620
DublinDenver
DUB - DEN
DUBDEN
Dublin
Sat 1/10
11:30 am-6:05 pm
1 stop13h 35m
Denver Intl
Tue 3/31
4:40 pm-11:05 am
1 stop11h 25m
$657
DublinDenver
DUB - DEN
DUBDEN
Dublin
Wed 1/7
8:40 pm-3:30 pm
1 stop25h 50m
Denver Intl
Tue 1/27
5:25 pm-5:00 pm
1 stop16h 35m
$759
DublinDenver
DUB - DEN
DUBDEN
Dublin
Sat 1/10
11:30 am-6:05 pm
1 stop13h 35m
Denver Intl
Fri 1/23
10:55 am-10:15 am
2 stops16h 20m
$771
DublinDenver
DUB - DEN
DUBDEN
Dublin
Wed 1/7
6:00 pm-3:30 pm
1 stop28h 30m
Denver Intl
Mon 4/6
6:40 pm-7:40 am
1 stop30h 00m
$784
DublinDenver
DUB - DEN
DUBDEN
Dublin
Thu 1/8
7:35 am-3:30 pm
1 stop14h 55m
Denver Intl
Wed 4/1
6:40 pm-6:15 pm
1 stop16h 35m
$786
DublinDenver
DUB - DEN
DUBDEN
Dublin
Wed 1/7
7:45 pm-3:30 pm
1 stop26h 45m
Denver Intl
Tue 4/7
6:40 pm-6:15 pm
1 stop16h 35m
$788
DublinDenver
DUB - DEN
DUBDEN
Dublin
Tue 12/16
11:30 am-11:05 pm
1 stop18h 35m
Denver Intl
Tue 12/23
12:32 pm-7:15 am
1 stop11h 43m
$793
DublinDenver
DUB - DEN
DUBDEN
Dublin
Sat 1/10
9:00 am-4:40 pm
1 stop14h 40m
Denver Intl
Fri 1/23
7:45 am-7:30 am
1 stop16h 45m
$794
CorkDenver
ORK - DEN
ORKDEN
Cork
Fri 12/5
6:00 am-8:30 pm
2 stops21h 30m
Denver Intl
Tue 12/9
6:15 am-10:45 am
2 stops21h 30m
$813
Showing 1-10 of 31 results
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.
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
What is the cheapest month to book a flight from Ireland to Colorado?
Currently, April is the cheapest month in which you can book a flight from Ireland to Colorado (average of $432). Flying from Ireland to Colorado in June is currently the most expensive (average of $721). 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 IE to CO?
Find hourly flight availability from Ireland to Colorado. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 21, 2025.
It’s optimal to fly from Ireland to Colorado in the afternoon. By choosing this option you can save up to 22% on the cost of your flight, compared to a flight in the morning.
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 November 21, 2025.
Read reviews from past customers who have flown United Airlines, American Airlines, and Aer Lingus from Ireland to Colorado. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.1
Crew
8.1
Food
6.6
Overall
7.4
Comfort
7.3
Boarding
7.7
Reviews
1 / 20
2.0
MediocreSebrena,Oct 2025
IAH - RSW
Entertainment
7.1
Crew
8.1
Food
6.6
Overall
7.4
Comfort
7.3
Boarding
7.7
Reviews
1 / 20
2.0
MediocreSebrena,Oct 2025
IAH - RSW
Entertainment
7.1
Crew
8.1
Food
6.6
Overall
7.4
Comfort
7.3
Boarding
7.7
Reviews
1 / 20
2.0
MediocreSebrena,Oct 2025
IAH - RSW
Entertainment
7.1
Crew
8.1
Food
6.6
Overall
7.4
Comfort
7.3
Boarding
7.7
Reviews
1 / 20
2.0
MediocreSebrena,Oct 2025
IAH - RSW
Entertainment
7.1
Crew
8.1
Food
6.6
Overall
7.4
Comfort
7.3
Boarding
7.7
Reviews
1 / 20
2.0
MediocreSebrena,Oct 2025
IAH - RSW
Entertainment
7.1
Crew
8.1
Food
6.6
Overall
7.4
Comfort
7.3
Boarding
7.7
Reviews
1 / 20
2.0
MediocreSebrena,Oct 2025
IAH - RSW
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.
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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.
Top 5 airlines flying from Ireland to Colorado
Discover the top 5 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 November 21, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$430 | Average$695 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$433 | Average$808 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$589 | Average$765 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$625 | Average$957 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$650 | Average$755 | FlexibilityNo cancel fee | On-time76% |