Cheap flights from Colorado to Ireland from $237

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 10/20. 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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0 bags

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Cheap round-trip flights

Icelandair Logo
3:40 pm - 10:15 amDEN-DUB
11h 35m1 stop
Icelandair Logo
11:30 am - 6:05 pmDUB-DEN
13h 35m1 stop
$404Icelandair
Find Deal
Mon, Feb 9 - Sun, Feb 22
Icelandair Logo
4:40 pm - 1:15 pmDEN-DUB
13h 35m1 stop
Icelandair Logo
11:30 am - 7:05 pmDUB-DEN
13h 35m1 stop
$407Icelandair
Find Deal
Wed, Oct 22 - Wed, Oct 29
Multiple Airlines Logo
1:25 pm - 7:10 amDEN-DUB
10h 45m1 stop
Multiple Airlines Logo
9:10 am - 4:00 pmDUB-DEN
13h 50m1 stop
$442Multiple Airlines
Find Deal
Tue, Nov 4 - Tue, Nov 11
Multiple Airlines Logo
1:25 pm - 7:10 amDEN-DUB
10h 45m1 stop
Multiple Airlines Logo
5:00 am - 4:00 pmDUB-DEN
18h 00m1 stop
$453Multiple Airlines
Find Deal
Tue, Nov 4 - Tue, Nov 11
Air Canada Logo
11:15 am - 7:10 amDEN-DUB
36h 55m2 stops
Air Canada Logo
9:00 am - 3:56 pmDUB-DEN
37h 56m2 stops
$457Air Canada
Find Deal
Mon, Feb 23 - Fri, Mar 6
Air Canada Logo
7:45 am - 7:10 amDEN-DUB
16h 25m2 stops
Air Canada Logo
9:00 am - 3:56 pmDUB-DEN
37h 56m2 stops
$462Air Canada
Find Deal
Tue, Feb 24 - Fri, Mar 6
United Airlines Logo
11:45 am - 7:30 amDEN-DUB
13h 45m1 stop
United Airlines Logo
9:00 am - 6:05 pmDUB-DEN
16h 05m1 stop
$464United Airlines
Find Deal
Sun, Oct 26 - Fri, Nov 7
Lufthansa Logo
4:20 pm - 5:10 pmDEN-DUB
17h 50m1 stop
Lufthansa Logo
5:00 am - 4:00 pmDUB-DEN
18h 00m1 stop
$466Lufthansa
Find Deal
Wed, Nov 12 - Thu, Nov 27
United Airlines Logo
1:45 pm - 7:30 amDEN-DUB
11h 45m1 stop
United Airlines Logo
9:50 am - 8:00 pmDUB-DEN
17h 10m1 stop
$472United Airlines
Find Deal
Tue, Mar 17 - Thu, Apr 9
Lufthansa Logo
5:45 pm - 4:25 pmDEN-DUB
15h 40m1 stop
Lufthansa Logo
9:10 am - 4:00 pmDUB-DEN
13h 50m1 stop
$499Lufthansa
Find Deal
Tue, Feb 24 - Tue, Mar 3

Icelandair flights from Colorado to Ireland

Our best Icelandair deals on Colorado to Ireland flight tickets
Icelandair
Feb 9
DEN3:40 pmDenver Intl
11h 35m
1 stop
DUB10:15 amDublin
Feb 22
DUB11:30 amDublin
13h 35m
1 stop
DEN6:05 pmDenver Intl
Icelandair
Oct 22
DEN4:40 pmDenver Intl
13h 35m
1 stop
DUB1:15 pmDublin
Oct 29
DUB11:30 amDublin
13h 35m
1 stop
DEN7:05 pmDenver Intl
Icelandair
Oct 21
DEN4:40 pmDenver Intl
11h 25m
1 stop
DUB11:05 amDublin
Oct 30
DUB11:30 amDublin
13h 35m
1 stop
DEN7:05 pmDenver Intl

Air Canada flights from Colorado to Ireland

Our best Air Canada deals on Colorado to Ireland flight tickets
Air Canada
Feb 23
DEN11:15 amDenver Intl
36h 55m
2 stops
DUB7:10 amDublin
Mar 6
DUB9:00 amDublin
37h 56m
2 stops
DEN3:56 pmDenver Intl
Air Canada
Feb 24
DEN7:45 amDenver Intl
16h 25m
2 stops
DUB7:10 amDublin
Mar 6
DUB9:00 amDublin
37h 56m
2 stops
DEN3:56 pmDenver Intl
Air Canada
Feb 23
DEN11:15 amDenver Intl
36h 55m
2 stops
DUB7:10 amDublin
Mar 6
DUB9:00 amDublin
41h 55m
2 stops
DEN7:55 pmDenver Intl

momondo Fare Finder

 
Customize your flight search to find flights from Colorado to Ireland that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated September 22, 2025.
Use the filters below to find and compare flights from Colorado to Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Mon 2/9

3:40 pm-10:15 am

1 stop11h 35m

Dublin

Sun 2/22

11:30 am-6:05 pm

1 stop13h 35m

$404

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Wed 10/22

4:40 pm-1:15 pm

1 stop13h 35m

Dublin

Wed 10/29

11:30 am-7:05 pm

1 stop13h 35m

$407

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Tue 11/4

1:25 pm-7:10 am

1 stop10h 45m

Dublin

Tue 11/11

9:10 am-4:00 pm

1 stop13h 50m

$442

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Tue 11/4

1:25 pm-7:10 am

1 stop10h 45m

Dublin

Tue 11/11

5:00 am-4:00 pm

1 stop18h 00m

$453

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Mon 2/23

11:15 am-7:10 am

2 stops36h 55m

Dublin

Fri 3/6

9:00 am-3:56 pm

2 stops37h 56m

$457

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Tue 2/24

7:45 am-7:10 am

2 stops16h 25m

Dublin

Fri 3/6

9:00 am-3:56 pm

2 stops37h 56m

$462

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Sun 10/26

11:45 am-7:30 am

1 stop13h 45m

Dublin

Fri 11/7

9:00 am-6:05 pm

1 stop16h 05m

$464

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Wed 11/12

4:20 pm-5:10 pm

1 stop17h 50m

Dublin

Thu 11/27

5:00 am-4:00 pm

1 stop18h 00m

$466

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Tue 3/17

1:45 pm-7:30 am

1 stop11h 45m

Dublin

Thu 4/9

9:50 am-8:00 pm

1 stop17h 10m

$472

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Tue 2/24

5:45 pm-4:25 pm

1 stop15h 40m

Dublin

Tue 3/3

9:10 am-4:00 pm

1 stop13h 50m

$499

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Ireland from

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

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 $478. 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 $487.

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 $815. 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 $1,056. 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 $532. 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 $865.

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 $615 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 $534 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 33% 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

$473

Fastest flight time

8h 40m

Direct flights

Mon, Tue, Thu, Fri, Sat and Sun

Airports in Ireland

1 airport
The best one-way flight to Ireland from Colorado in the past 72 hours is $473. The best round-trip flight deal from Colorado to Ireland found on momondo in the last 72 hours is $648.
The fastest flight from Colorado to Ireland takes 8h 40m
Direct flights go from Colorado to Ireland on Monday, Tuesday, Thursday, Friday, Saturday and Sunday. There are no airlines offering direct flights.
There is 1 airport near Ireland: Dublin (DUB)
  • 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?

  • 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?

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
JetBluePriceFrom $131Free CancellationRating
7.2
2,912 reviews
Search JetBlue flights
IcelandairPriceFrom $346Free CancellationRating
7.0
545 reviews
Search Icelandair flights
KLMPriceFrom $362Free CancellationRating
7.8
1,387 reviews
Search KLM flights
DeltaPriceFrom $363Free CancellationRating
7.9
7,971 reviews
Search Delta flights
IberiaPriceFrom $372Free CancellationRating
7.0
2,938 reviews
Search Iberia flights
Air CanadaPriceFrom $390Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights
United AirlinesPriceFrom $394Free CancellationRating
7.4
8,922 reviews
Search United Airlines flights
Air FrancePriceFrom $405Free CancellationRating
7.4
1,467 reviews
Search Air France flights
British AirwaysPriceFrom $436Free CancellationRating
6.7
7,386 reviews
Search British Airways flights
LufthansaPriceFrom $464Free CancellationRating
6.8
7,421 reviews
Search Lufthansa 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

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1 adult
Wed 10/22
Wed 10/29

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Popular cities in Ireland

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