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Cheap flights from Ireland to Colorado from £307

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 3/5. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — DEN
23 Apr — 30 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ireland to Colorado

Enter your travel dates to find the best prices.

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 24 March 2026.

Wed 6/512:15
DUB
-
DEN
1 stop13h 45m
Icelandair
Mon 25/516:40
DEN
-
DUB
1 stop13h 35m
Icelandair
Deal found 20/3£352
Fri 4/912:15
DUB
-
DEN
1 stop13h 45m
Icelandair
Mon 14/916:40
DEN
-
DUB
1 stop13h 35m
Icelandair
Deal found 19/3£376
Wed 22/408:35
DUB
-
DEN
1 stop14h 45m
British Airways
Sun 26/418:30
DEN
-
DUB
1 stop30h 15m
British Airways
Deal found 19/3£391
Sun 3/509:40
DUB
-
DEN
2 stops20h 05m
Finnair
Sun 10/510:28
DEN
-
DUB
1 stop16h 17m
Finnair
Deal found 19/3£392
Thu 7/520:20
DUB
-
DEN
1 stop27h 00m
British Airways
Mon 11/518:30
DEN
-
DUB
1 stop13h 00m
British Airways
Deal found 22/3£393
Fri 1/509:30
DUB
-
DEN
1 stop17h 25m
Finnair
Tue 12/510:28
DEN
-
DUB
1 stop16h 17m
Finnair
Deal found 20/3£396
Fri 15/509:40
DUB
-
DEN
2 stops20h 05m
Finnair
Mon 18/510:28
DEN
-
DUB
1 stop16h 17m
Finnair
Deal found 23/3£399
Tue 7/409:30
DUB
-
DEN
1 stop17h 25m
Finnair
Sun 10/510:28
DEN
-
DUB
1 stop16h 17m
Finnair
Deal found 20/3£402

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 24 March 2026.

Round-trip from

£352

One-way from

£307

Popular in

August

Cheapest in

September

Average price

£518

Good one-way deal

£397 or less
Icelandair
  • Icelandair
  • 6/5-25/5
  • 2 total stops
  • 27h 20m total
  • Ireland to Colorado
Search Deals
JetBlue
  • JetBlue
  • 3/5
  • 1 total stop
  • 18h 33m total
  • Ireland to Colorado
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£34 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£10 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a one-way flight from Ireland to Colorado.
Search Deals

Cheapflights Fare Finder

 
Customise 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 858,174 searches. Data last updated 24 March 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

Price

Cheapest return flight

DublinDenver

DUB - DEN

DUBDEN

Dublin

Mon 18/5

09:40-22:45

2 stops20h 05m

Denver Intl

Wed 27/5

14:21-11:50

1 stop14h 29m

£392

DublinDenver

DUB - DEN

DUBDEN

Dublin

Wed 6/5

09:40-22:45

2 stops20h 05m

Denver Intl

Mon 25/5

14:21-11:50

1 stop14h 29m

£392

DublinDenver

DUB - DEN

DUBDEN

Dublin

Thu 7/5

20:20-16:20

1 stop27h 00m

Denver Intl

Mon 11/5

18:30-07:40

1 stop30h 10m

£393
Fastest return journey

DublinDenver

DUB - DEN

DUBDEN

Dublin

Sun 3/5

09:30-19:55

1 stop17h 25m

Denver Intl

Sun 10/5

10:28-09:45

1 stop16h 17m

£396

DublinDenver

DUB - DEN

DUBDEN

Dublin

Fri 1/5

09:30-19:55

1 stop17h 25m

Denver Intl

Tue 12/5

10:28-09:45

1 stop16h 17m

£396

DublinDenver

DUB - DEN

DUBDEN

Dublin

Fri 15/5

09:40-22:45

2 stops20h 05m

Denver Intl

Mon 18/5

10:28-09:45

1 stop16h 17m

£399

DublinDenver

DUB - DEN

DUBDEN

Dublin

Fri 1/5

11:10-22:48

2 stops18h 38m

Denver Intl

Tue 12/5

17:40-18:25

1 stop17h 45m

£544

DublinDenver

DUB - DEN

DUBDEN

Dublin

Mon 18/5

11:10-20:15

2 stops16h 05m

Denver Intl

Wed 27/5

23:50-10:00

1 stop27h 10m

£546
Cheapest one-way

DublinDenver

DUB - DEN

DUBDEN

Dublin

Fri 15/5

11:30-22:59

1 stop18h 29m

£309

DublinDenver

DUB - DEN

DUBDEN

Dublin

Sat 16/5

10:40-22:13

1 stop18h 33m

£310

Flights are sorted by cheapest return flights first.

Deals found on 23/3

Showing 1-10 of 17 resultsSorted by cheapest first
1
2

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 return 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, June is the cheapest month in which you can book a flight from Ireland to Colorado (average of £310). Flying from Ireland to Colorado in July is currently the most expensive (average of £530). 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 24 March 2026.
Read through reviews of airlines operating flights from Ireland to Colorado, such as United Airlines,Aer Lingus, andIcelandair. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,467 reviews
Check prices

Overall

7.4

Crew

8.1

Entertainment

7.1

Comfort

7.3

Food

6.6

Boarding

7.7

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
United Airlines
7.4
Good
9,467 reviews
United Airlines
7.4
Good
9,467 reviews
Check prices

Overall

7.4

Crew

8.1

Entertainment

7.1

Comfort

7.3

Food

6.6

Boarding

7.7

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
Aer Lingus
7.2
Good
1,487 reviews
United Airlines
7.4
Good
9,467 reviews
Check prices

Overall

7.4

Crew

8.1

Entertainment

7.1

Comfort

7.3

Food

6.6

Boarding

7.7

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
Icelandair
7.0
Good
625 reviews
United Airlines
7.4
Good
9,467 reviews
Check prices

Overall

7.4

Crew

8.1

Entertainment

7.1

Comfort

7.3

Food

6.6

Boarding

7.7

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
British Airways
6.7
Okay
7,813 reviews
United Airlines
7.4
Good
9,467 reviews
Check prices

Overall

7.4

Crew

8.1

Entertainment

7.1

Comfort

7.3

Food

6.6

Boarding

7.7

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats

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?

    The Ireland to Colorado flight path was viewed by 70 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Ireland to Colorado?

    For as low as £392, Finnair can have you in Colorado from Ireland in 20h 05m. Airlines will cover a distance of 4378 mi. Both multi-stop and direct flights can be found to your destination and back.

  • 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 holiday 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, June is the cheapest month in which you can book a flight from Ireland to Colorado (average of £310). Flying from Ireland to Colorado in July is currently the most expensive (average of £530). 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

Browse thousands of different 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.
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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 858,174 searches. Data last updated 24 March 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£303Average£412FlexibilityNo cancel feeOn-time70%
Search British Airways flights
IcelandairCheapest£337Average£563FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Aer LingusCheapest£394Average£642FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
United AirlinesCheapest£483Average£734FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Ireland to Colorado?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Colorado from Ireland today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Ireland to Colorado?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Ireland to Colorado.

Can Cheapflights find flights from Ireland to Colorado with no change fees?

Certainly. Search results for flights to Colorado from Ireland shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Ireland to Colorado become cheaper?

Of course! You can now track prices for flights from Ireland to Colorado and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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