What is the cheapest airline that flies from Ireland to Colorado?

Aer Lingus is the most popular carrier operating from Ireland to Colorado

Which airlines fly to Colorado?

Aer Lingus, Icelandair and British Airways are the top three most popular airlines that fly to Colorado from Ireland according to our data. Aer Lingus is the first choice among our users, with 49% of people opting to fly with this airline when travelling to Colorado. Keep in mind that there are 4 different airlines that fly to Colorado on a routine basis, so you have a few additional options to choose from.

How long is the flight from Ireland to Colorado?

The average flight duration from Ireland to Colorado depends on which airport you fly into and out of. Flying from Dublin to Denver is 9h 50m on average, while flying from Cork to Denver is 16h 10m on average. Denver is the most popular airport in Colorado.

When did momondo last update prices for flights from Ireland to Colorado?

Prices for flights from Ireland to Colorado were last updated today.

How many operators does momondo search for flights from Ireland to Colorado?

As of January 2026, there are 4 operators available to choose from for flights from Ireland to Colorado.

How old do you have to be to fly from Ireland to Colorado?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Ireland to Colorado.

What documentation or ID do you need to fly to Colorado?

The travel and health documents required for your trip to Colorado can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Colorado. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

€302 Cheap Flights from Ireland to Colorado in 2026

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Find the cheapest flights from Ireland to Colorado

Round-trip

One-way

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Recent return flight deals from Ireland to Colorado

Enter your travel dates to find the best prices.

09:30 - 19:55

DUB

DEN

17h 25m

1 stop

18:40 - 19:30

DEN

DUB

17h 50m

1 stop

€327Multiple Airlines

Fri, 1 May - Tue, 12 May

09:30 - 19:55

DUB

DEN

17h 25m

1 stop

18:40 - 19:30

DEN

DUB

17h 50m

1 stop

€328Multiple Airlines

Fri, 1 May - Tue, 12 May

09:30 - 19:55

DUB

DEN

17h 25m

1 stop

18:40 - 19:30

DEN

DUB

17h 50m

1 stop

€329Multiple Airlines

Fri, 17 Apr - Tue, 21 Apr

09:30 - 22:40

DUB

DEN

20h 10m

1 stop

10:28 - 09:45

DEN

DUB

16h 17m

1 stop

€335Finnair

Sat, 9 May - Sat, 16 May

09:30 - 00:07

DUB

DEN

21h 37m

1 stop

12:39 - 09:45

DEN

DUB

14h 06m

1 stop

€342Finnair

Tue, 26 May - Tue, 2 Jun

09:30 - 19:55

DUB

DEN

17h 25m

1 stop

10:28 - 09:45

DEN

DUB

16h 17m

1 stop

€350Finnair

Wed, 22 Apr - Wed, 29 Apr

20:40 - 15:30

DUB

DEN

25h 50m

1 stop

17:25 - 17:05

DEN

DUB

16h 40m

1 stop

€356British Airways

Mon, 23 Feb - Mon, 2 Mar

13:00 - 22:37

DUB

DEN

16h 37m

2 stops

17:25 - 19:40

DEN

DUB

19h 15m

1 stop

€360British Airways

Mon, 23 Feb - Mon, 2 Mar

09:40 - 22:40

DUB

DEN

20h 00m

2 stops

18:40 - 18:50

DEN

DUB

17h 10m

1 stop

€371Multiple Airlines

Fri, 1 May - Tue, 12 May

13:20 - 00:28

ORK

DEN

18h 08m

2 stops

12:07 - 12:55

DEN

ORK

17h 48m

2 stops

€667KLM

Fri, 6 Feb - Tue, 10 Feb

British Airways flights from Ireland to Colorado

Our best British Airways deals on Ireland to Colorado flight tickets

British Airways

23 Feb

DUB20:40Dublin

25h 50m

1 stop

DEN15:30Denver Intl

2 Mar

DEN17:25Denver Intl

16h 40m

1 stop

DUB17:05Dublin

€356

British Airways

23 Feb

DUB13:00Dublin

16h 37m

2 stops

DEN22:37Denver Intl

2 Mar

DEN17:25Denver Intl

19h 15m

1 stop

DUB19:40Dublin

€360

British Airways

25 Feb

DUB08:50Dublin

13h 40m

1 stop

DEN15:30Denver Intl

3 Mar

DEN17:25Denver Intl

19h 15m

1 stop

DUB19:40Dublin

€375

American Airlines flights from Ireland to Colorado

Our best American Airlines deals on Ireland to Colorado flight tickets

American Airlines

23 Feb

DUB11:30Dublin

15h 44m

2 stops

DEN20:14Denver Intl

8 Mar

DEN07:05Denver Intl

19h 35m

1 stop

DUB08:40Dublin

€393

American Airlines

6 Feb

DUB11:30Dublin

18h 46m

2 stops

DEN23:16Denver Intl

10 Feb

DEN11:29Denver Intl

14h 11m

2 stops

DUB08:40Dublin

€395

American Airlines

20 Feb

DUB11:30Dublin

17h 06m

1 stop

DEN21:36Denver Intl

27 Feb

DEN14:20Denver Intl

11h 20m

1 stop

DUB08:40Dublin

€399

Fly from

Fly to

Route

Depart

Return

Price

DublinDenver

DUB - DEN

DUBDEN

Dublin

Fri 1/5

09:30-19:55

1 stop17h 25m

Denver Intl

Tue 12/5

18:40-19:30

1 stop17h 50m

€327

DublinDenver

DUB - DEN

DUBDEN

Dublin

Fri 1/5

09:30-19:55

1 stop17h 25m

Denver Intl

Tue 12/5

18:40-19:30

1 stop17h 50m

€328

DublinDenver

DUB - DEN

DUBDEN

Dublin

Fri 17/4

09:30-19:55

1 stop17h 25m

Denver Intl

Tue 21/4

18:40-19:30

1 stop17h 50m

€329

DublinDenver

DUB - DEN

DUBDEN

Dublin

Sat 9/5

09:30-22:40

1 stop20h 10m

Denver Intl

Sat 16/5

10:28-09:45

1 stop16h 17m

€335

DublinDenver

DUB - DEN

DUBDEN

Dublin

Tue 26/5

09:30-00:07

1 stop21h 37m

Denver Intl

Tue 2/6

12:39-09:45

1 stop14h 06m

€342

DublinDenver

DUB - DEN

DUBDEN

Dublin

Wed 22/4

09:30-19:55

1 stop17h 25m

Denver Intl

Wed 29/4

10:28-09:45

1 stop16h 17m

€350

DublinDenver

DUB - DEN

DUBDEN

Dublin

Mon 23/2

20:40-15:30

1 stop25h 50m

Denver Intl

Mon 2/3

17:25-17:05

1 stop16h 40m

€356

DublinDenver

DUB - DEN

DUBDEN

Dublin

Mon 23/2

13:00-22:37

2 stops16h 37m

Denver Intl

Mon 2/3

17:25-19:40

1 stop19h 15m

€360

DublinDenver

DUB - DEN

DUBDEN

Dublin

Fri 1/5

09:40-22:40

2 stops20h 00m

Denver Intl

Tue 12/5

18:40-18:50

1 stop17h 10m

€371

CorkDenver

ORK - DEN

ORKDEN

Cork

Fri 6/2

13:20-00:28

2 stops18h 08m

Denver Intl

Tue 10/2

12:07-12:55

2 stops17h 48m

€667

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Ireland to Colorado

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Colorado?

The cheapest month to fly to Colorado from Ireland is in September. Flight prices, which tend to average around €524, are often lower during this time because this is during the off-season. If you’re not able to fly to Colorado in September, then October is your next best option. Flight prices from Ireland to Colorado during October average around €544.

What is the cheapest day to depart on your flight to Colorado?

On average, the least expensive day to fly to Colorado from Ireland is on a Saturday. momondo users have found tickets for Saturday departures for as low as €640. However, this price may fluctuate depending on the airline, the season, and holidays. The most expensive day to fly to Colorado is Sunday, with ticket prices averaging around €886.

What is the cheapest Ireland to Colorado flight route?

Fly from Dublin to Denver Intl for the best Ireland - Colorado flight prices

How far in advance should I book a flight to Colorado?

You are more likely to see cheaper flights to Colorado from Ireland when booking weeks ahead of your departure date. In general, you can expect to find flights to Colorado for around €667 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Colorado from Ireland for as low as €513 on momondo.

What cabin class options are available on Ireland to Colorado flights?

There is only 1 cabin class available to choose from on Ireland to Colorado flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Ireland to Colorado flights?

You could potentially save up to 11% on your flight if you consider stops on a Ireland to Colorado flight.

Cheap Ireland to Colorado flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ireland to Colorado

Fastest flight time	9h 50m
Direct flights	Mon, Tue, Thu, Sat and Sun
Airports in Colorado	87 airports

The fastest flight from Ireland to Colorado takes 9h 50m

Direct flights go from Ireland to Colorado on Monday, Tuesday, Thursday, Saturday and Sunday. There are no airlines offering direct flights..

There are 87 airports in Colorado. From Ireland there are direct flights to Denver Intl (DEN).

Search flight deals

When did momondo last update prices for flights from Ireland to Colorado?
Prices for flights from Ireland to Colorado were last updated today.
How many operators does momondo search for flights from Ireland to Colorado?
As of January 2026, there are 4 operators available to choose from for flights from Ireland to Colorado.
How old do you have to be to fly from Ireland to Colorado?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Ireland to Colorado.
What documentation or ID do you need to fly to Colorado?
The travel and health documents required for your trip to Colorado can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Colorado. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Ireland to Colorado?
Based on momondo bookings for flights between Ireland and Colorado, the leading plane model is Airbus A330-200, making up 71.43% of the total bookings. Other popular models include Airbus A321neo with 12.70%, Airbus A321-100/200 with 7.94%, and Airbus A330-300 with 3.17%.

Best airlines flying from Ireland to Colorado

Compare and see reviews for airlines that fly from Ireland to Colorado with momondo

Airline	Rating	Free Cancellation	Price
British Airways	PriceFrom €425	Free Cancellation	Rating 6.7 7,689 reviews	Search British Airways flights
Aer Lingus	PriceFrom €470	Free Cancellation	Rating 7.2 1,439 reviews	Search Aer Lingus flights
United Airlines	PriceFrom €519	Free Cancellation	Rating 7.4 9,191 reviews	Search United Airlines flights
Icelandair	PriceFrom €538	Free Cancellation	Rating 7.1 602 reviews	Search Icelandair flights

Why use momondo?

Why should I use momondo to find a flight deal from Ireland to Colorado?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Colorado from Ireland.

Can I find flights from Ireland to Colorado with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Colorado from Ireland with this policy.

How can momondo help me find flights from Ireland to Colorado?

Once you have performed a search for Ireland to Colorado flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Ireland to Colorado right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Colorado, momondo offers a useful price alert feature which will track prices for flights to Colorado from Ireland and alert you when they change.