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Cheap flights from Dublin to Colorado from £387

DUB — DEN
18 Oct — 25 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Dublin to Colorado

Enter your travel dates to find the best prices.

Cheapest flights from Dublin to Colorado

Sun 1/1117:55 -
1 stop27h 35m
Sat 14/1116:15 -
1 stop17h 55m
Deal found 15/9£455
Sat 26/909:15 -
1 stop13h 25m
Sat 10/1017:40 -
1 stop31h 40m
Deal found 17/9£458
Sat 21/1105:45 -
2 stops21h 40m
Sat 28/1123:59 -
1 stop25h 46m
Deal found 17/9£471
Fri 25/908:55 -
2 stops18h 10m
Mon 28/917:40 -
1 stop17h 45m
Deal found 17/9£473
Tue 20/1005:55 -
2 stops18h 01m
Tue 27/1011:07 -
2 stops15h 53m
Deal found 16/9£473
Sat 21/1115:10 -
1 stop31h 00m
Sat 28/1117:01 -
1 stop12h 44m
Deal found 17/9£474
Mon 28/908:55 -
2 stops18h 10m
Wed 14/1006:05 -
1 stop18h 50m
Deal found 17/9£475
Wed 7/1009:15 -
1 stop13h 25m
Fri 27/1110:45 -
1 stop14h 00m
Deal found 17/9£476
Sat 26/905:55 -
1 stop16h 45m
Sat 10/1007:15 -
2 stops17h 40m
Deal found 16/9£476
Mon 21/1220:40 -
1 stop25h 30m
Sun 10/117:01 -
1 stop14h 54m
Deal found 12/9£477
Tue 29/908:55 -
2 stops18h 20m
Tue 13/1012:15 -
1 stop14h 45m
Deal found 12/9£478

Find flight deals from Dublin to Colorado

Round-trip from

£455

One-way from

£387

Popular in

July

Cheapest in

February

Average price

£571
Lufthansa
  • Lufthansa
  • 1/11-14/11
  • 2 total stops
  • 45h 30m total
  • Dublin to Colorado
Search Deals
Delta
  • Delta
  • 1/1-31/12
  • 2 total stops
  • 20h 50m total
  • Dublin to Colorado
Search Deals
Highest demand for flights based on searches. 20% potential increase in price (£104 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£12 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2026
Search Deals

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Dublin 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 1/1

05:45-19:35

2 stops20h 50m

Denver Intl

Wed 31/12

00:00-08:00

Nonstop0h 00m

£387

DublinDenver

DUB Dublin - DEN Denver Intl

DUBDEN

Dublin

Tue 13/10

11:30-14:21

1 stop33h 51m

Denver Intl

Wed 31/12

00:00-08:00

Nonstop0h 00m

£442

DublinDenver

DUB Dublin - DEN Denver Intl

DUBDEN

Dublin

Sun 29/11

13:15-23:35

1 stop17h 20m

Denver Intl

Wed 31/12

00:00-08:00

Nonstop0h 00m

£454

DublinDenver

DUB Dublin - DEN Denver Intl

DUBDEN

Dublin

Fri 12/3

05:45-15:56

2 stops17h 11m

Denver Intl

Mon 15/3

11:40-09:45

1 stop16h 05m

£470

DublinDenver

DUB Dublin - DEN Denver Intl

DUBDEN

Dublin

Fri 12/3

05:45-15:56

2 stops17h 11m

Denver Intl

Mon 15/3

16:00-12:40

2 stops14h 40m

£472

DublinDenver

DUB Dublin - DEN Denver Intl

DUBDEN

Dublin

Fri 12/3

05:45-15:56

2 stops17h 11m

Denver Intl

Mon 15/3

06:30-08:45

1 stop20h 15m

£472

DublinDenver

DUB Dublin - DEN Denver Intl

DUBDEN

Dublin

Thu 14/1

20:40-15:10

1 stop25h 30m

Denver Intl

Mon 18/1

14:33-17:05

2 stops19h 32m

£474

DublinDenver

DUB Dublin - DEN Denver Intl

DUBDEN

Dublin

Fri 12/3

08:50-15:10

1 stop13h 20m

Denver Intl

Mon 15/3

18:01-17:05

1 stop17h 04m

£474

DublinDenver

DUB Dublin - DEN Denver Intl

DUBDEN

Dublin

Tue 20/10

05:55-17:47

2 stops18h 52m

Denver Intl

Tue 27/10

11:07-09:00

2 stops15h 53m

£477

DublinDenver

DUB Dublin - DEN Denver Intl

DUBDEN

Dublin

Mon 19/10

05:30-11:42

2 stops37h 12m

Denver Intl

Wed 31/12

00:00-08:00

Nonstop0h 00m

£497

Flights are sorted by cheapest return flights first.

Deals found on 16/9

Showing 1-10 of 14 resultsSorted by cheapest first
1
2

Best time to book a flight from Dublin to Colorado

Have a flexible travel schedule? Discover the best time to fly to Colorado from Dublin with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight from Dublin to Colorado

What is the cheapest month to book a flight from Dublin to Colorado?

Currently, February is the cheapest month in which you can book a flight from Dublin to Colorado (average of £346). Flying from Dublin to Colorado in July is currently the most expensive (average of £721). 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 DUB to CO?

When flying from Dublin 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 much does it cost for a return flight from Dublin to Colorado?

Airfare is typical for this route at the moment.
Dublin to Colorado flights typically cost between £346 and £603 in November.
The cheapest return price found within the last 5 days was £455 on Lufthansa (1 Nov–14 Nov).

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

The price you pay for your flight from Dublin to Colorado may vary depending on when you book. For the best chance of a lower fare, look to book 88 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Reviews of airlines servicing Colorado

See what other customers who have flown with Aer Lingus,Icelandair, andBritish Airways from Dublin to Colorado have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Aer Lingus
7.3
Good
1,767 reviews
Check prices

Entertainment

7.0

Comfort

7.2

Overall

7.3

Food

6.7

Boarding

7.5

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Patrick,Sept 2026

DUB - IAD

I had a great experience. Crew was great and very accommodating.
Aer Lingus
7.3
Good
1,767 reviews
Aer Lingus
7.3
Good
1,767 reviews
Check prices

Entertainment

7.0

Comfort

7.2

Overall

7.3

Food

6.7

Boarding

7.5

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Patrick,Sept 2026

DUB - IAD

I had a great experience. Crew was great and very accommodating.
Icelandair
6.9
Okay
746 reviews
Aer Lingus
7.3
Good
1,767 reviews
Check prices

Entertainment

7.0

Comfort

7.2

Overall

7.3

Food

6.7

Boarding

7.5

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Patrick,Sept 2026

DUB - IAD

I had a great experience. Crew was great and very accommodating.
British Airways
6.7
Okay
8,229 reviews
Aer Lingus
7.3
Good
1,767 reviews
Check prices

Entertainment

7.0

Comfort

7.2

Overall

7.3

Food

6.7

Boarding

7.5

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Patrick,Sept 2026

DUB - IAD

I had a great experience. Crew was great and very accommodating.

Related info for your journey

  • What airport do you fly from for flights from Dublin to Colorado?

    For a flight from Dublin to Colorado, you will be flying from Dublin. Dublin (DUB) is just 5.7 mi from the center of the city.

  • How popular is this Dublin to Colorado flight route?

    This flight path from Dublin to Colorado was viewed by 22 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 Dublin to Colorado?

    KLM and Delta can get you from Dublin to Colorado in just under 17h 11m. Your travel time can differ by up to . The distance from Dublin to Colorado is about 4378 mi.

  • What are the most reliable airlines from Dublin to Colorado?

    No one likes to see their flight delayed. When booking a flight from Dublin to Colorado consider choosing American Airlines (75%), Aer Lingus (75%) or Iberia (75%) as they are the most reliable in getting you off to your destination on time.

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from Dublin to Colorado (average of £346). Flying from Dublin to Colorado in July is currently the most expensive (average of £721). 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 Dublin to Colorado

AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£302Average£358FlexibilityNo cancel feeOn-time70%
Search British Airways flights
IcelandairCheapest£335Average£459FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Aer LingusCheapest£366Average£617FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

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