What airlines fly to Ireland?

Aer Lingus, United Airlines and Icelandair are the top three most popular airlines that fly to Ireland from Colorado according to our data. Aer Lingus is the first choice among our users, with 46% of people opting to fly with this airline when traveling to Ireland. Keep in mind that there are 12 different airlines that fly to Ireland on a routine basis, so you have a few additional options to choose from.

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

American Airlines, KLM, and British Airways are the most popular carriers operating from Colorado to Ireland

How long is the flight from Colorado to Ireland?

Flight times from Colorado to Ireland vary, but if you’re flying out of Denver and flying into Dublin (one of the most popular routes), then the duration is 7h 45m on average. Another popular route from Colorado to Ireland is flying from Colorado Springs to Dublin, which will take roughly 13h 27m. Keep in mind that layovers or delays could extend your travel time.

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

Prices for flights from Colorado to Ireland refresh daily.

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

There are 12 operators available for flights from Colorado to Ireland as of December 2025.

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

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 layovers. It is recommended that you verify with the airline you are booking with for travel from Colorado to Ireland.

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

The necessary travel and health documents for your Ireland trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$246 Cheap Flights from Colorado to Ireland in 2025/26

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Cheap round-trip flights

Enter your travel dates to find the best prices.

4:20 pm - 5:10 pm

DEN

DUB

17h 50m1 stop

5:10 am - 1:40 pm

DUB

DEN

15h 30m1 stop

$427Lufthansa

Wed, Feb 4 - Wed, Feb 11

3:40 pm - 10:15 am

DEN

DUB

11h 35m1 stop

11:30 am - 6:05 pm

DUB

DEN

13h 35m1 stop

$431Icelandair

Fri, Feb 6 - Tue, Feb 10

5:25 pm - 5:00 pm

DEN

DUB

16h 35m1 stop

8:50 am - 3:30 pm

DUB

DEN

13h 40m1 stop

$445British Airways

Wed, Feb 25 - Wed, Mar 4

6:40 pm - 2:35 pm

DEN

DUB

12h 55m1 stop

8:35 am - 4:30 pm

DUB

DEN

14h 55m1 stop

$449British Airways

Wed, Apr 1 - Fri, Apr 10

11:43 am - 8:10 am

COS

DUB

13h 27m1 stop

9:00 am - 9:06 pm

DUB

COS

43h 06m2 stops

$456United Airlines

Thu, Jan 22 - Mon, Jan 26

11:33 am - 8:10 am

COS

DUB

13h 37m2 stops

9:00 am - 12:22 pm

DUB

COS

34h 22m2 stops

$460United Airlines

Thu, Jan 22 - Mon, Jan 26

5:25 pm - 3:25 pm

DEN

ORK

15h 00m1 stop

7:20 am - 4:30 pm

ORK

DEN

16h 10m1 stop

$472American Airlines

Sun, Mar 1 - Tue, Mar 31

9:51 am - 11:10 am

DEN

ORK

18h 19m2 stops

7:20 am - 4:30 pm

ORK

DEN

16h 10m1 stop

$476American Airlines

Sun, Mar 1 - Tue, Mar 31

7:00 am - 7:10 am

GJT

DUB

17h 10m3 stops

9:00 am - 8:38 pm

DUB

GJT

18h 38m2 stops

$490Multiple Airlines

Tue, Jan 20 - Sun, Feb 8

11:43 am - 7:10 am

COS

DUB

36h 27m2 stops

9:00 am - 10:57 am

DUB

COS

32h 57m3 stops

$490Multiple Airlines

Thu, Jan 22 - Mon, Jan 26

American Airlines flights from Colorado to Ireland

Our best American Airlines deals on Colorado to Ireland flight tickets

American Airlines

Mar 1

DEN5:25 pmDenver Intl

15h 00m

1 stop

ORK3:25 pmCork

Mar 31

ORK7:20 amCork

16h 10m

1 stop

DEN4:30 pmDenver Intl

$472

Find similar

American Airlines

Mar 1

DEN9:51 amDenver Intl

18h 19m

2 stops

ORK11:10 amCork

Mar 31

ORK7:20 amCork

16h 10m

1 stop

DEN4:30 pmDenver Intl

$476

Find similar

American Airlines

Jan 19

DEN4:30 pmDenver Intl

14h 05m

2 stops

DUB1:35 pmDublin

Jan 27

DUB11:30 amDublin

18h 04m

2 stops

DEN10:34 pmDenver Intl

$480

Find similar

United Airlines flights from Colorado to Ireland

Our best United Airlines deals on Colorado to Ireland flight tickets

United Airlines

Jan 22

COS11:43 amColorado Springs

13h 27m

1 stop

DUB8:10 amDublin

Jan 26

DUB9:00 amDublin

43h 06m

2 stops

COS9:06 pmColorado Springs

$456

Find similar

United Airlines

Feb 15

DEN5:54 pmDenver Intl

31h 16m

1 stop

DUB8:10 amDublin

Feb 27

DUB9:00 amDublin

32h 23m

1 stop

DEN10:23 amDenver Intl

$457

Find similar

United Airlines

Jan 22

COS11:33 amColorado Springs

13h 37m

2 stops

DUB8:10 amDublin

Jan 26

DUB9:00 amDublin

34h 22m

2 stops

COS12:22 pmColorado Springs

$460

Find similar

Fly from

Fly to

Route

Depart

Return

Price

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Wed 2/4

4:20 pm-5:10 pm

1 stop17h 50m

Dublin

Wed 2/11

5:10 am-1:40 pm

1 stop15h 30m

$427

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Fri 2/6

3:40 pm-10:15 am

1 stop11h 35m

Dublin

Tue 2/10

11:30 am-6:05 pm

1 stop13h 35m

$431

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Wed 2/25

5:25 pm-5:00 pm

1 stop16h 35m

Dublin

Wed 3/4

8:50 am-3:30 pm

1 stop13h 40m

$445

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Wed 4/1

6:40 pm-2:35 pm

1 stop12h 55m

Dublin

Fri 4/10

8:35 am-4:30 pm

1 stop14h 55m

$449

Colorado SpringsDublin

COS - DUB

COSDUB

Colorado Springs

Thu 1/22

11:43 am-8:10 am

1 stop13h 27m

Dublin

Mon 1/26

9:00 am-9:06 pm

2 stops43h 06m

$456

Colorado SpringsDublin

COS - DUB

COSDUB

Colorado Springs

Thu 1/22

11:33 am-8:10 am

2 stops13h 37m

Dublin

Mon 1/26

9:00 am-12:22 pm

2 stops34h 22m

$460

DenverCork

DEN - ORK

DENORK

Denver Intl

Sun 3/1

5:25 pm-3:25 pm

1 stop15h 00m

Cork

Tue 3/31

7:20 am-4:30 pm

1 stop16h 10m

$472

DenverCork

DEN - ORK

DENORK

Denver Intl

Sun 3/1

9:51 am-11:10 am

2 stops18h 19m

Cork

Tue 3/31

7:20 am-4:30 pm

1 stop16h 10m

$476

Grand JunctionDublin

GJT - DUB

GJTDUB

Grand Junction Regnl

Tue 1/20

7:00 am-7:10 am

3 stops17h 10m

Dublin

Sun 2/8

9:00 am-8:38 pm

2 stops18h 38m

$490

Colorado SpringsDublin

COS - DUB

COSDUB

Colorado Springs

Thu 1/22

11:43 am-7:10 am

2 stops36h 27m

Dublin

Mon 1/26

9:00 am-10:57 am

3 stops32h 57m

$490

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Colorado to Ireland

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 Ireland?

In general, November is the cheapest month to fly from Colorado to Ireland. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $484. If you aren’t able to travel to Ireland during the month of November, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $498.

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

The cheapest day to depart on your flight to Ireland is on a Monday when prices can be found for as low as $812. This is often the case because there is less demand to fly during this day of the week. Flights from Colorado to Ireland on a Tuesday will generally be more expensive and average around $1,031. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Ireland?

According to our data, the cheapest time of day to fly to Ireland is in the afternoon. momondo users have found flights departing from Colorado to Ireland in the afternoon for as low as $548. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Ireland is in the evening when prices are around $855.

What is the cheapest Colorado to Ireland flight route?

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

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

You are more likely to see cheaper flights to Ireland from Colorado when booking weeks ahead of your departure date. In general, you can expect to find flights to Ireland for around $636 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ireland from Colorado for as low as $558 on momondo.

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

There are 3 cabin classes available to choose from on Colorado to Ireland 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 Colorado to Ireland flights?

You could potentially save up to 22% on your flight if you consider stops on a Colorado to Ireland flight.

Cheap Colorado to Ireland flight deals and tips

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

Best Price Found	$448
Fastest flight time	7h 45m
Direct flights	Mon, Tue, Thu, Sat and Sun
Airports in Ireland	77 airports

The best one-way flight to Ireland from Colorado in the past 72 hours is $448. The best round-trip flight deal from Colorado to Ireland found on momondo in the last 72 hours is $659.

The fastest flight from Colorado to Ireland takes 7h 45m

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

There are 77 airports in Ireland. From Colorado there are direct flights to Dublin (DUB).

Search flight deals

When did momondo last update prices for flights from Colorado to Ireland?
Prices for flights from Colorado to Ireland refresh daily.
How many operators does momondo search for flights from Colorado to Ireland?
There are 12 operators available for flights from Colorado to Ireland as of December 2025.
How old do you have to be to fly from Colorado to Ireland?
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 layovers. It is recommended that you verify with the airline you are booking with for travel from Colorado to Ireland.
What documentation or ID do you need to fly to Ireland?
The necessary travel and health documents for your Ireland trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Colorado to Ireland?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Colorado to Ireland is Airbus A330-200 (70.19% of total bookings). The next most popular plane models are Boeing 787-9 Dreamliner (11.64%), Boeing 787 Dreamliner (5.64%), and Airbus A350-900 (4.23%).

Best airlines flying from Colorado to Ireland

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

Airline	Rating	Free Cancellation	Price
JetBlue	PriceFrom $131	Free Cancellation	Rating 7.2 2,898 reviews	Search JetBlue flights
Icelandair	PriceFrom $359	Free Cancellation	Rating 7.0 592 reviews	Search Icelandair flights
KLM	PriceFrom $362	Free Cancellation	Rating 7.7 1,434 reviews	Search KLM flights
Iberia	PriceFrom $372	Free Cancellation	Rating 7.0 3,056 reviews	Search Iberia flights
Air Canada	PriceFrom $384	Free Cancellation	Rating 7.1 10,551 reviews	Search Air Canada flights
Delta	PriceFrom $391	Free Cancellation	Rating 7.9 8,015 reviews	Search Delta flights
United Airlines	PriceFrom $397	Free Cancellation	Rating 7.4 9,107 reviews	Search United Airlines flights
Air France	PriceFrom $405	Free Cancellation	Rating 7.4 1,513 reviews	Search Air France flights
Lufthansa	PriceFrom $432	Free Cancellation	Rating 6.8 7,649 reviews	Search Lufthansa flights
American Airlines	PriceFrom $458	Free Cancellation	Rating 7.2 11,050 reviews	Search American Airlines flights

Why use momondo?

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

Finding the right flight to Ireland from Colorado is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Ireland quick and easy, saving you time and money.

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

Flights from Colorado to Ireland with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search for Colorado to Ireland 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 Colorado to Ireland right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Colorado to Ireland flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Ireland trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Find better results for your trip to Ireland

Popular cities in Ireland

Flights to Dublinfrom $302

Flights to Shannon, Clarefrom $353

Flights to Corkfrom $393

Flights to Knockfrom $607

Flights to Milltown (Kerry)from $575

Flights to Donegalfrom $664

Cheap flights from Colorado to Ireland from $246

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Colorado to Ireland departing on 3/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Big names and deals

Filter for what you want

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Find the cheapest flights from Colorado to Ireland

Cheap round-trip flights

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American Airlines flights from Colorado to Ireland

Our best American Airlines deals on Colorado to Ireland flight tickets

United Airlines flights from Colorado to Ireland

Our best United Airlines deals on Colorado to Ireland flight tickets

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Use the filters below to find and compare flights from Colorado to Ireland that are best for you.

See travel insights to Ireland from

How to get the cheapest flight ticket from Colorado to Ireland

What is the cheapest month to fly to Ireland?

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

What is the cheapest time of day to depart on your flight to Ireland?

What is the cheapest Colorado to Ireland flight route?

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

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

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

There are 3 cabin classes available to choose from on Colorado to Ireland 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 Colorado to Ireland flights?

You could potentially save up to 22% on your flight if you consider stops on a Colorado to Ireland flight.

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

American Airlines, KLM, and British Airways are the most popular carriers operating from Colorado to Ireland

What airlines fly to Ireland?

How long is the flight from Colorado to Ireland?

Cheap Colorado to Ireland flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in Ireland

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

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

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

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

What is the most popular plane model from Colorado to Ireland?

Best airlines flying from Colorado to Ireland

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

Why use momondo?

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

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

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

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

An easier way to manage your Ireland trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Ireland

Popular cities in Ireland

Popular flights according to clicks in the last 7 days on momondo