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Cheap flights from Ireland to Colorado from £369

DUB — DEN
3 Nov — 10 Nov1
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
Tue 1/1215:40 -
1 stop11h 35m
Deal found 3/10£461
Sat 5/1211:30 -
1 stop13h 30m
Sun 6/1215:40 -
1 stop11h 35m
Deal found 2/10£481
Sat 21/1111:30 -
1 stop13h 30m
Sat 28/1115:40 -
1 stop11h 35m
Deal found 30/9£483
Thu 29/1006:00 -
2 stops23h 44m
Wed 11/1111:08 -
2 stops14h 52m
Deal found 29/9£491
Sun 8/1109:00 -
1 stop14h 50m
Mon 23/1107:40 -
1 stop19h 40m
Deal found 30/9£510
Wed 18/1105:10 -
1 stop15h 30m
Wed 25/1111:15 -
1 stop13h 55m
Deal found 4/10£512
Wed 28/1005:10 -
1 stop15h 15m
Wed 4/1117:25 -
1 stop22h 20m
Deal found 29/9£513
Sun 22/1105:10 -
1 stop15h 30m
Mon 7/1211:15 -
1 stop13h 55m
Deal found 2/10£513

Find flight deals from Ireland to Colorado

Round-trip from

£461

One-way from

£369

Popular in

July

Cheapest in

February

Average price

£501
Icelandair
  • Icelandair
  • 12/11-1/12
  • 2 total stops
  • 25h 05m total
  • Ireland to Colorado
Search Deals
4/12-31/12
  • 4/12-31/12
  • 1 total stop
  • 25h 35m total
  • Ireland to Colorado
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (£97 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£12 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 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 4/12

20:35-15:10

1 stop25h 35m

Denver Intl

Wed 31/12

00:00-08:00

Nonstop0h 00m

£369

DublinDenver

DUB Dublin - DEN Denver Intl

DUBDEN

Dublin

Fri 1/1

05:45-21:01

2 stops22h 16m

Denver Intl

Wed 31/12

00:00-08:00

Nonstop0h 00m

£425

DublinDenver

DUB Dublin - DEN Denver Intl

DUBDEN

Dublin

Thu 29/10

06:00-23:44

2 stops23h 44m

Denver Intl

Wed 11/11

11:08-09:00

2 stops14h 52m

£491

DublinDenver

DUB Dublin - DEN Denver Intl

DUBDEN

Dublin

Thu 12/11

08:45-15:10

1 stop13h 25m

Denver Intl

Tue 1/12

17:01-13:35

1 stop13h 34m

£521

DublinDenver

DUB Dublin - DEN Denver Intl

DUBDEN

Dublin

Sat 21/11

09:00-18:04

1 stop16h 04m

Denver Intl

Sat 28/11

11:15-08:10

1 stop13h 55m

£524

DublinDenver

DUB Dublin - DEN Denver Intl

DUBDEN

Dublin

Thu 12/11

08:50-23:34

2 stops21h 44m

Denver Intl

Tue 1/12

11:41-09:45

1 stop15h 04m

£524

DublinDenver

DUB Dublin - DEN Denver Intl

DUBDEN

Dublin

Sun 15/11

09:00-16:50

1 stop14h 50m

Denver Intl

Sun 22/11

09:35-07:30

2 stops14h 55m

£528

DublinDenver

DUB Dublin - DEN Denver Intl

DUBDEN

Dublin

Sun 15/11

05:45-20:29

2 stops21h 44m

Denver Intl

Sun 22/11

06:30-08:45

2 stops19h 15m

£528

DublinDenver

DUB Dublin - DEN Denver Intl

DUBDEN

Dublin

Wed 21/10

09:50-23:08

1 stop20h 18m

Denver Intl

Sat 31/10

20:25-08:10

1 stop29h 45m

£535

DublinDenver

DUB Dublin - DEN Denver Intl

DUBDEN

Dublin

Mon 26/10

10:40-21:48

1 stop17h 08m

Denver Intl

Mon 2/11

09:52-08:10

1 stop15h 18m

£538

Flights are sorted by cheapest return flights first.

Deals found on 30/9

Showing 1-10 of 14 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, February is the cheapest month in which you can book a flight from Ireland to Colorado (average of £349). Flying from Ireland to Colorado in July is currently the most expensive (average of £728). 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?

When flying from Ireland to Colorado, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

The best time to book flights from Ireland to Colorado is 86 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,Icelandair, andBritish Airways. 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
1,811 reviews
Check prices

Comfort

7.2

Boarding

7.4

Entertainment

7.0

Food

6.7

Overall

7.3

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Michael,Sept 2026

DUB - JFK

Food and service was great. Wish the USB on the planes worked so I could charge and use my phone on the flight
Aer Lingus
7.3
Good
1,811 reviews
Aer Lingus
7.3
Good
1,811 reviews
Check prices

Comfort

7.2

Boarding

7.4

Entertainment

7.0

Food

6.7

Overall

7.3

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Michael,Sept 2026

DUB - JFK

Food and service was great. Wish the USB on the planes worked so I could charge and use my phone on the flight
Icelandair
6.9
Okay
756 reviews
Aer Lingus
7.3
Good
1,811 reviews
Check prices

Comfort

7.2

Boarding

7.4

Entertainment

7.0

Food

6.7

Overall

7.3

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Michael,Sept 2026

DUB - JFK

Food and service was great. Wish the USB on the planes worked so I could charge and use my phone on the flight
British Airways
6.7
Okay
8,244 reviews
Aer Lingus
7.3
Good
1,811 reviews
Check prices

Comfort

7.2

Boarding

7.4

Entertainment

7.0

Food

6.7

Overall

7.3

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Michael,Sept 2026

DUB - JFK

Food and service was great. Wish the USB on the planes worked so I could charge and use my phone on the flight

Related info for your journey

  • How popular is this Ireland to Colorado flight route?

    The Ireland to Colorado flight path was viewed by 15 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 £521, Delta can have you in Colorado from Ireland in 13h 25m. 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, February is the cheapest month in which you can book a flight from Ireland to Colorado (average of £349). Flying from Ireland to Colorado in July is currently the most expensive (average of £728). 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 3 airlines flying from Ireland to Colorado

AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£305Average£365FlexibilityNo cancel feeOn-time70%
Search British Airways flights
IcelandairCheapest£339Average£463FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Aer LingusCheapest£370Average£639FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

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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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