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Cheap flights from Ireland to Colorado from £303

DUB — DEN
5 Dec — 12 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

Thu 12/1111:30 -
1 stop13h 30m
Wed 25/1115:40 -
1 stop11h 35m
Deal found 2/11£465
Fri 4/1211:30 -
1 stop13h 30m
Sat 12/1215:40 -
1 stop11h 35m
Deal found 4/11£469
Sat 5/1211:30 -
1 stop13h 30m
Sun 13/1215:40 -
1 stop11h 35m
Deal found 3/11£475
Fri 4/1211:30 -
1 stop13h 30m
Sun 13/1215:40 -
1 stop11h 35m
Deal found 3/11£482
Thu 3/1211:30 -
1 stop13h 30m
Sat 12/1215:40 -
1 stop11h 35m
Deal found 4/11£484
Tue 8/1211:30 -
1 stop13h 30m
Mon 14/1215:40 -
1 stop11h 35m
Deal found 3/11£488
Sat 5/1211:30 -
1 stop13h 30m
Sat 12/1215:40 -
1 stop11h 35m
Deal found 4/11£489
Sun 6/1208:45 -
1 stop13h 25m
Sun 13/1217:01 -
1 stop12h 09m
Deal found 3/11£511
Sun 6/1209:40 -
1 stop16h 01m
Sun 13/1212:36 -
2 stops27h 19m
Deal found 3/11£527
Thu 12/1109:00 -
2 stops18h 27m
Wed 25/1113:30 -
1 stop10h 40m
Deal found 2/11£529
Thu 12/1118:35 -
2 stops34h 13m
Thu 26/1111:15 -
2 stops23h 30m
Deal found 30/10£532
Fri 13/1118:35 -
2 stops34h 14m
Sun 22/1113:25 -
2 stops38h 55m
Deal found 4/11£533

Find flight deals from Ireland to Colorado

Round-trip from

£456

One-way from

£303

Popular in

July

Cheapest in

April

Average price

£607
Icelandair
  • Icelandair
  • 28/1-1/2
  • 2 total stops
  • 25h 05m total
  • Ireland to Colorado
Search Deals
10/12-31/12
  • 10/12-31/12
  • 3 total stops
  • 43h 57m total
  • Ireland to Colorado
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£79 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

Fri 15/1

05:45-21:34

2 stops22h 49m

Denver Intl

Wed 31/12

00:00-08:00

Nonstop0h 00m

£323

DublinDenver

DUB Dublin - DEN Denver Intl

DUBDEN

Dublin

Sat 13/3

05:45-20:34

2 stops21h 49m

Denver Intl

Wed 31/12

00:00-08:00

Nonstop0h 00m

£324

DublinDenver

DUB Dublin - DEN Denver Intl

DUBDEN

Dublin

Sat 12/12

17:15-09:29

2 stops47h 14m

Denver Intl

Wed 31/12

00:00-08:00

Nonstop0h 00m

£336

DublinDenver

DUB Dublin - DEN Denver Intl

DUBDEN

Dublin

Tue 12/1

05:45-17:28

2 stops18h 43m

Denver Intl

Wed 31/12

00:00-08:00

Nonstop0h 00m

£353

DublinDenver

DUB Dublin - DEN Denver Intl

DUBDEN

Dublin

Fri 30/4

06:00-17:30

2 stops18h 30m

Denver Intl

Wed 31/12

00:00-08:00

Nonstop0h 00m

£355

DublinDenver

DUB Dublin - DEN Denver Intl

DUBDEN

Dublin

Sun 28/3

13:15-10:53

1 stop28h 38m

Denver Intl

Wed 31/12

00:00-08:00

Nonstop0h 00m

£360

DublinDenver

DUB Dublin - DEN Denver Intl

DUBDEN

Dublin

Mon 12/4

11:00-09:35

1 stop29h 35m

Denver Intl

Wed 31/12

00:00-08:00

Nonstop0h 00m

£362
Fastest return journey

DublinDenver

DUB Dublin - DEN Denver Intl

DUBDEN

Dublin

Thu 10/12

06:40-18:00

2 stops18h 20m

Denver Intl

Wed 31/12

00:00-08:00

Nonstop0h 00m

£374

DublinDenver

DUB Dublin - DEN Denver Intl

DUBDEN

Dublin

Mon 14/12

11:30-22:57

1 stop18h 27m

Denver Intl

Wed 31/12

00:00-08:00

Nonstop0h 00m

£430

DublinDenver

DUB Dublin - DEN Denver Intl

DUBDEN

Dublin

Sat 21/11

09:00-18:04

1 stop16h 04m

Denver Intl

Sat 28/11

08:00-07:30

1 stop16h 30m

£537

Flights are sorted by cheapest return flights first.

Deals found on 1/11

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
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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 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 £384). Flying from Ireland to Colorado in July is currently the most expensive (average of £716). 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 87 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
1,878 reviews
Check prices

Boarding

7.5

Comfort

7.2

Overall

7.3

Crew

8.1

Food

6.7

Entertainment

7.0

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
1,878 reviews
Aer Lingus
7.3
Good
1,878 reviews
Check prices

Boarding

7.5

Comfort

7.2

Overall

7.3

Crew

8.1

Food

6.7

Entertainment

7.0

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
10,463 reviews
Aer Lingus
7.3
Good
1,878 reviews
Check prices

Boarding

7.5

Comfort

7.2

Overall

7.3

Crew

8.1

Food

6.7

Entertainment

7.0

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
766 reviews
Aer Lingus
7.3
Good
1,878 reviews
Check prices

Boarding

7.5

Comfort

7.2

Overall

7.3

Crew

8.1

Food

6.7

Entertainment

7.0

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
8,282 reviews
Aer Lingus
7.3
Good
1,878 reviews
Check prices

Boarding

7.5

Comfort

7.2

Overall

7.3

Crew

8.1

Food

6.7

Entertainment

7.0

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 £537, United Airlines can have you in Colorado from Ireland in 16h 04m. 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, April is the cheapest month in which you can book a flight from Ireland to Colorado (average of £384). Flying from Ireland to Colorado in July is currently the most expensive (average of £716). 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£297Average£409FlexibilityNo cancel feeOn-time70%
Search British Airways flights
IcelandairCheapest£333Average£455FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Aer LingusCheapest£364Average£628FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
United AirlinesCheapest£480Average£593FlexibilityNo 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.

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