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Colorado

$281+ 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 3/3. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — DEN
Feb 10 — Feb 171
Tue 2/10
Tue 2/17
1 adult, Economy
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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 January 11, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$384
(lol.travel)

One-way from

$281
(Kiwi.com)

Popular in

June

Cheapest in

September

Average price

$837

Good one-way deal

$739 or less
Provider with most accurate pricing for Dublin-Denver Intl flight deals.
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Provider most trusted by Cheapflights users for Dublin-Denver Intl flights.
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From Ireland to Colorado
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One-way flight from Ireland to Colorado
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Highest demand for flights based on searches. 13% potential increase in price ($127 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Price to beat on a one-way flight from Ireland to Colorado.
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Find flight deals from Ireland to Colorado

Cheapest flights from Ireland to Colorado
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 January 11, 2026.

This lol.travel deal was found by Cheapflights users on 1/10. 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 4/179:30 amDUB - DEN
1 stop17h 25mFinnair
Sat 4/2510:28 amDEN - DUB
1 stop16h 17mFinnair
Deal found 1/10$384
This Finnair deal was found by Cheapflights users on 1/10. 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 3/258:40 pmDUB - DEN
1 stop25h 50mMultiple Airlines
Sun 5/310:28 amDEN - DUB
1 stop16h 17mMultiple Airlines
Deal found 1/10$390
This British Airways deal was found by Cheapflights users on 1/9. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/95:55 pmDUB - DEN
1 stop28h 35mBritish Airways
Mon 2/235:25 pmDEN - DUB
1 stop31h 30mBritish Airways
Deal found 1/9$399
This Expedia deal was found by Cheapflights users on 1/9. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/238:50 amDUB - DEN
1 stop13h 40mBritish Airways
Mon 3/25:25 pmDEN - DUB
1 stop19h 15mBritish Airways
Deal found 1/9$400
This British Airways deal was found by Cheapflights users on 1/9. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/106:00 pmDUB - DEN
1 stop28h 30mBritish Airways
Tue 3/175:58 pmDEN - DUB
2 stops17h 02mBritish Airways
Deal found 1/9$411
This Finnair deal was found by Cheapflights users on 1/10. 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 3/106:05 pmDUB - DEN
2 stops32h 00mMultiple Airlines
Tue 3/176:25 pmDEN - DUB
1 stop19h 15mMultiple Airlines
Deal found 1/10$419
This British Airways deal was found by Cheapflights users on 1/9. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/18:35 amDUB - DEN
1 stop14h 55mBritish Airways
Tue 5/126:40 pmDEN - DUB
1 stop15h 20mBritish Airways
Deal found 1/9$425
This British Airways deal was found by Cheapflights users on 1/9. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/258:40 pmDUB - DEN
2 stops27h 10mBritish Airways
Wed 4/86:40 pmDEN - DUB
1 stop13h 00mBritish Airways
Deal found 1/9$428
This Mytrip deal was found by Cheapflights users on 1/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/258:50 amDUB - DEN
1 stop13h 40mBritish Airways
Tue 3/35:25 pmDEN - DUB
1 stop19h 15mBritish Airways
Deal found 1/11$438
This Mytrip deal was found by Cheapflights users on 1/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/188:40 pmDUB - DEN
1 stop25h 50mBritish Airways
Tue 2/245:25 pmDEN - DUB
1 stop13h 55mBritish Airways
Deal found 1/11$439
This British Airways deal was found by Cheapflights users on 1/9. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/235:55 pmDUB - DEN
1 stop28h 35mBritish Airways
Mon 3/96:25 pmDEN - DUB
1 stop19h 15mBritish Airways
Deal found 1/9$441
This British Airways deal was found by Cheapflights users on 1/8. 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 4/307:40 amSNN - DEN
1 stop15h 50mBritish Airways
Mon 5/412:49 pmDEN - SNN
2 stops15h 31mBritish Airways
Deal found 1/8$583

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 January 11, 2026.
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

Wed 3/25

8:40 pm-4:30 pm

1 stop25h 50m

Denver Intl

Sun 5/3

10:28 am-9:45 am

1 stop16h 17m

$390

DublinDenver

DUB - DEN

DUBDEN

Dublin

Mon 2/9

5:55 pm-3:30 pm

1 stop28h 35m

Denver Intl

Mon 2/23

5:25 pm-7:55 am

1 stop31h 30m

$399

DublinDenver

DUB - DEN

DUBDEN

Dublin

Tue 3/10

8:50 am-4:30 pm

1 stop13h 40m

Denver Intl

Tue 3/17

6:25 pm-2:20 pm

1 stop13h 55m

$411

DublinDenver

DUB - DEN

DUBDEN

Dublin

Tue 3/10

8:40 pm-4:30 pm

1 stop25h 50m

Denver Intl

Tue 3/17

6:25 pm-7:40 pm

1 stop19h 15m

$411

DublinDenver

DUB - DEN

DUBDEN

Dublin

Fri 5/1

8:35 am-4:30 pm

1 stop14h 55m

Denver Intl

Tue 5/12

6:40 pm-5:00 pm

1 stop15h 20m

$425

DublinDenver

DUB - DEN

DUBDEN

Dublin

Wed 3/25

8:40 pm-5:50 pm

2 stops27h 10m

Denver Intl

Wed 4/8

6:40 pm-2:40 pm

1 stop13h 00m

$428

DublinDenver

DUB - DEN

DUBDEN

Dublin

Sat 2/28

8:55 am-3:30 pm

1 stop13h 35m

Denver Intl

Sat 3/7

5:25 pm-2:15 pm

1 stop13h 50m

$438

DublinDenver

DUB - DEN

DUBDEN

Dublin

Wed 2/18

8:40 pm-3:30 pm

1 stop25h 50m

Denver Intl

Tue 2/24

5:25 pm-2:20 pm

1 stop13h 55m

$439

ShannonDenver

SNN - DEN

SNNDEN

Shannon

Thu 4/30

7:40 am-4:30 pm

1 stop15h 50m

Denver Intl

Mon 5/4

6:40 pm-4:10 pm

1 stop14h 30m

$583

CorkDenver

ORK - DEN

ORKDEN

Cork

Wed 5/6

8:30 pm-4:30 pm

1 stop27h 00m

Denver Intl

Sun 5/10

6:40 pm-7:50 pm

1 stop18h 10m

$584

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/10

Showing 1-10 of 50 results
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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 $431). Flying from Ireland to Colorado in July is currently the most expensive (average of $708). 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 January 11, 2026.
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.
United Airlines
7.4
Good
9,145 reviews

Crew

8.1

Entertainment

7.1

Overall

7.4

Boarding

7.7

Food

6.6

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,145 reviews
United Airlines
7.4
Good
9,145 reviews

Crew

8.1

Entertainment

7.1

Overall

7.4

Boarding

7.7

Food

6.6

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
American Airlines
7.2
Good
11,101 reviews
United Airlines
7.4
Good
9,145 reviews

Crew

8.1

Entertainment

7.1

Overall

7.4

Boarding

7.7

Food

6.6

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Aer Lingus
7.2
Good
1,432 reviews
United Airlines
7.4
Good
9,145 reviews

Crew

8.1

Entertainment

7.1

Overall

7.4

Boarding

7.7

Food

6.6

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Icelandair
7.1
Good
595 reviews
United Airlines
7.4
Good
9,145 reviews

Crew

8.1

Entertainment

7.1

Overall

7.4

Boarding

7.7

Food

6.6

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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.

  • How popular is this Ireland to Colorado flight route?

    Flights from Ireland to Colorado have been viewed 5 times in the past calendar month.

  • How long is the flight from Ireland to Colorado?

    A quick flight from Ireland to Colorado can take about 17h 25m. Finnair provides one of the quickest options available for as low as $384. The distance from Ireland to Colorado is about 4378 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Ireland to Colorado one-way?

    The cheapest airline one-way is Icelandair, with whom users have recently found tickets for as low as $446. However, be on the lookout for offers from British Airways and Aer Lingus, as they are both options that can get you from Ireland to Colorado for a low price.

  • Can I find deals for flights from Ireland to Colorado that include hotel bookings?

    Yes. In addition to deals on Ireland to Colorado flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ireland to Colorado?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ireland to Colorado.

  • Can I find deals for business class flights from Ireland to Colorado?

    Yes. Cheapflights offers flight deals from Ireland to Colorado 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 Ireland to Colorado?

    Currently, April is the cheapest month in which you can book a flight from Ireland to Colorado (average of $431). Flying from Ireland to Colorado in July is currently the most expensive (average of $708). 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 Ireland to Colorado

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Ireland to Colorado

Discover the top 4 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 January 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest$433Average$808FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$484Average$789FlexibilityNo cancel feeOn-time71%
IcelandairCheapest$601Average$737FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$625Average$879FlexibilityNo cancel feeOn-time69%

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