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Cheap flights from Ireland to Colorado from £324

DUB — DEN
10 Dec — 17 Dec1
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

Fri 4/1211:30 -
1 stop13h 30m
Mon 7/1215:40 -
1 stop11h 35m
Deal found 7/11£496
Thu 26/1105:10 -
1 stop17h 25m
Fri 11/1211:15 -
1 stop13h 55m
Deal found 9/11£526
Mon 23/1105:45 -
2 stops17h 17m
Mon 7/1211:13 -
2 stops14h 47m
Deal found 9/11£536
Sat 21/1105:45 -
2 stops21h 40m
Sat 28/1106:00 -
2 stops19h 45m
Deal found 9/11£538
Thu 12/1109:00 -
1 stop16h 04m
Wed 25/1108:00 -
1 stop18h 55m
Deal found 4/11£541
Thu 12/1109:00 -
2 stops18h 27m
Tue 1/1211:15 -
1 stop13h 55m
Deal found 5/11£541
Thu 19/1105:45 -
2 stops21h 26m
Wed 2/1210:46 -
2 stops14h 59m
Deal found 5/11£543
Sat 21/1105:45 -
2 stops21h 44m
Wed 25/1112:38 -
2 stops17h 02m
Deal found 5/11£544

Find flight deals from Ireland to Colorado

Round-trip from

£459

One-way from

£324

Popular in

July

Cheapest in

April

Average price

£642
Icelandair
  • Icelandair
  • 28/1-1/2
  • 2 total stops
  • 25h 05m total
  • Ireland to Colorado
Search Deals
Delta
  • Delta
  • 20/1-31/12
  • 2 total stops
  • 22h 49m total
  • Ireland to Colorado
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£77 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 November 2026
Search Deals

Cheapflights Fare Finder

 
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 Dublin - DEN Denver Intl

DUBDEN

Dublin

Wed 20/1

05:45-21:34

2 stops22h 49m

Denver Intl

Wed 31/12

00:00-08:00

Nonstop0h 00m

£324

DublinDenver

DUB Dublin - DEN Denver Intl

DUBDEN

Dublin

Wed 3/2

05:45-20:00

2 stops21h 15m

Denver Intl

Wed 31/12

00:00-08:00

Nonstop0h 00m

£324

DublinDenver

DUB Dublin - DEN Denver Intl

DUBDEN

Dublin

Sat 16/1

05:45-19:35

2 stops20h 50m

Denver Intl

Wed 31/12

00:00-08:00

Nonstop0h 00m

£326

DublinDenver

DUB Dublin - DEN Denver Intl

DUBDEN

Dublin

Sun 10/1

05:45-21:34

2 stops22h 49m

Denver Intl

Wed 31/12

00:00-08:00

Nonstop0h 00m

£353

DublinDenver

DUB Dublin - DEN Denver Intl

DUBDEN

Dublin

Wed 2/12

04:25-22:27

2 stops49h 02m

Denver Intl

Wed 31/12

00:00-08:00

Nonstop0h 00m

£436

DublinDenver

DUB Dublin - DEN Denver Intl

DUBDEN

Dublin

Wed 9/12

04:25-22:27

2 stops25h 02m

Denver Intl

Wed 31/12

00:00-08:00

Nonstop0h 00m

£441

DublinDenver

DUB Dublin - DEN Denver Intl

DUBDEN

Dublin

Sat 21/11

05:45-20:25

2 stops21h 40m

Denver Intl

Sat 28/11

06:00-08:45

2 stops19h 45m

£538

DublinDenver

DUB Dublin - DEN Denver Intl

DUBDEN

Dublin

Thu 19/11

05:45-16:02

2 stops17h 17m

Denver Intl

Fri 4/12

06:30-08:45

2 stops19h 15m

£539

DublinDenver

DUB Dublin - DEN Denver Intl

DUBDEN

Dublin

Tue 1/12

08:50-23:49

2 stops21h 59m

Denver Intl

Thu 10/12

11:41-09:45

1 stop15h 04m

£542

DublinDenver

DUB Dublin - DEN Denver Intl

DUBDEN

Dublin

Thu 12/11

08:50-15:10

1 stop13h 20m

Denver Intl

Tue 1/12

17:01-12:10

1 stop12h 09m

£559

Flights are sorted by cheapest return flights first.

Deals found on 7/11

Showing 1-10 of 19 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

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 £386). Flying from Ireland to Colorado in July is currently the most expensive (average of £719). 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.

How far ahead should I book a flight from Ireland to Colorado?

The best time to book flights from Ireland to Colorado is 88 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Reviews of airlines servicing Colorado

Read through reviews of airlines operating flights from Ireland to Colorado, such as Aer Lingus,United Airlines, andIcelandair. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Aer Lingus
7.3
Good
1,882 reviews
Check prices

Crew

8.1

Overall

7.3

Boarding

7.5

Food

6.7

Entertainment

7.0

Comfort

7.2

Reviews

1 / 20
10.0
Excellent

Karin,Oct 2026

DUB - MCO

Food could have been better. The chicken and rice dish was excellent. Not sure about the salads. And the pizza was horrible was lukewarm and had way too much dough. Staff was mixed. Some staff didn’t seem like they wanted to be there.
Aer Lingus
7.3
Good
1,882 reviews
Aer Lingus
7.3
Good
1,882 reviews
Check prices

Crew

8.1

Overall

7.3

Boarding

7.5

Food

6.7

Entertainment

7.0

Comfort

7.2

Reviews

1 / 20
10.0
Excellent

Karin,Oct 2026

DUB - MCO

Food could have been better. The chicken and rice dish was excellent. Not sure about the salads. And the pizza was horrible was lukewarm and had way too much dough. Staff was mixed. Some staff didn’t seem like they wanted to be there.
United Airlines
7.3
Good
10,478 reviews
Aer Lingus
7.3
Good
1,882 reviews
Check prices

Crew

8.1

Overall

7.3

Boarding

7.5

Food

6.7

Entertainment

7.0

Comfort

7.2

Reviews

1 / 20
10.0
Excellent

Karin,Oct 2026

DUB - MCO

Food could have been better. The chicken and rice dish was excellent. Not sure about the salads. And the pizza was horrible was lukewarm and had way too much dough. Staff was mixed. Some staff didn’t seem like they wanted to be there.
Icelandair
6.9
Okay
767 reviews
Aer Lingus
7.3
Good
1,882 reviews
Check prices

Crew

8.1

Overall

7.3

Boarding

7.5

Food

6.7

Entertainment

7.0

Comfort

7.2

Reviews

1 / 20
10.0
Excellent

Karin,Oct 2026

DUB - MCO

Food could have been better. The chicken and rice dish was excellent. Not sure about the salads. And the pizza was horrible was lukewarm and had way too much dough. Staff was mixed. Some staff didn’t seem like they wanted to be there.
British Airways
6.7
Okay
8,287 reviews
Aer Lingus
7.3
Good
1,882 reviews
Check prices

Crew

8.1

Overall

7.3

Boarding

7.5

Food

6.7

Entertainment

7.0

Comfort

7.2

Reviews

1 / 20
10.0
Excellent

Karin,Oct 2026

DUB - MCO

Food could have been better. The chicken and rice dish was excellent. Not sure about the salads. And the pizza was horrible was lukewarm and had way too much dough. Staff was mixed. Some staff didn’t seem like they wanted to be there.

Related info for your journey

  • How popular is this Ireland to Colorado flight route?

    The Ireland to Colorado flight path was viewed by 14 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 £538, Delta can have you in Colorado from Ireland in 21h 40m. Airlines will cover a distance of 4378 mi.

  • 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, April 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 £719). 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

Top 4 airlines flying from Ireland to Colorado

AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£298Average£411FlexibilityNo cancel feeOn-time70%
Search British Airways flights
IcelandairCheapest£334Average£457FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Aer LingusCheapest£366Average£631FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
United AirlinesCheapest£577Average£596FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

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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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