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Cheap flights from Ireland to Colorado from £285

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 23/6. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — DEN
13 Jun — 20 Jun1
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
Explore the most affordable flight options available from Ireland to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 May 2026.

Fri 12/605:55
DUB
-
DEN
1 stop16h 45m
Air France
Tue 23/612:12
DEN
-
DUB
1 stop12h 43m
Air France
Deal found 13/5£391
Wed 24/612:40
DUB
-
DEN
1 stop13h 56m
Multiple Airlines
Tue 30/618:35
DEN
-
DUB
1 stop17h 55m
Multiple Airlines
Deal found 14/5£395
Wed 17/612:40
DUB
-
DEN
1 stop13h 56m
Multiple Airlines
Mon 22/618:35
DEN
-
DUB
1 stop18h 00m
Multiple Airlines
Deal found 13/5£396
Fri 22/509:30
DUB
-
DEN
1 stop21h 29m
Finnair
Thu 28/514:21
DEN
-
DUB
1 stop14h 29m
Finnair
Deal found 13/5£397
Mon 18/512:40
DUB
-
DEN
1 stop14h 15m
Finnair
Wed 27/514:21
DEN
-
DUB
1 stop14h 29m
Finnair
Deal found 9/5£398
Fri 5/608:55
DUB
-
DEN
2 stops18h 20m
Delta
Fri 19/606:35
DEN
-
DUB
1 stop19h 40m
Delta
Deal found 13/5£400
Sun 7/606:00
DUB
-
DEN
1 stop16h 40m
Delta
Sat 27/613:15
DEN
-
DUB
1 stop12h 30m
Delta
Deal found 13/5£401
Mon 18/511:10
DUB
-
DEN
2 stops16h 05m
Delta
Wed 27/507:55
DEN
-
DUB
2 stops17h 00m
Delta
Deal found 11/5£402
Wed 17/613:45
DUB
-
DEN
1 stop15h 48m
British Airways
Tue 23/606:38
DEN
-
DUB
1 stop19h 57m
British Airways
Deal found 10/5£404
Sun 7/609:30
DUB
-
DEN
1 stop21h 47m
Finnair
Sat 27/614:22
DEN
-
DUB
1 stop14h 28m
Finnair
Deal found 11/5£404
Fri 5/613:15
DUB
-
DEN
1 stop16h 25m
Delta
Sun 7/613:15
DEN
-
DUB
1 stop12h 30m
Delta
Deal found 13/5£407

Find flight deals from Ireland to Colorado

Keep the following information in mind while searching for Ireland to Colorado flight deals. Data was last updated 14 May 2026.

Round-trip from

£391

One-way from

£285

Popular in

August

Cheapest in

February

Average price

£518
Air France
  • Air France
  • 12/6-23/6
  • 2 total stops
  • 29h 28m total
  • Ireland to Colorado
Search Deals
JetBlue
  • JetBlue
  • 23/6
  • 1 total stop
  • 18h 29m total
  • Ireland to Colorado
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£70 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£16 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Ireland to Colorado 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, Cheapflights users made 858,174 searches. Data last updated 14 May 2026.
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 - DEN

DUBDEN

Dublin

Fri 12/6

05:55-15:40

1 stop16h 45m

Denver Intl

Tue 23/6

07:05-07:55

2 stops17h 50m

£401

DublinDenver

DUB - DEN

DUBDEN

Dublin

Sun 7/6

06:00-15:40

1 stop16h 40m

Denver Intl

Sat 27/6

11:23-08:45

1 stop14h 22m

£402

DublinDenver

DUB - DEN

DUBDEN

Dublin

Fri 12/6

05:55-15:40

1 stop16h 45m

Denver Intl

Mon 15/6

11:10-10:00

2 stops15h 50m

£446

DublinDenver

DUB - DEN

DUBDEN

Dublin

Mon 29/6

11:10-22:45

2 stops18h 35m

Denver Intl

Fri 10/7

05:45-08:45

1 stop20h 00m

£550
Fastest return journey

DublinDenver

DUB - DEN

DUBDEN

Dublin

Tue 10/11

11:30-18:05

1 stop13h 35m

Denver Intl

Sun 6/12

15:40-10:15

1 stop11h 35m

£597

DublinDenver

DUB - DEN

DUBDEN

Dublin

Mon 9/11

05:45-15:09

2 stops16h 24m

Denver Intl

Tue 8/12

10:30-08:45

2 stops15h 15m

£651

DublinDenver

DUB - DEN

DUBDEN

Dublin

Mon 9/11

20:40-15:30

1 stop25h 50m

Denver Intl

Sat 5/12

17:25-12:45

1 stop12h 20m

£663

DublinDenver

DUB - DEN

DUBDEN

Dublin

Sun 30/8

08:35-19:38

2 stops18h 03m

Denver Intl

Sun 6/9

18:40-17:15

1 stop15h 35m

£697

DublinDenver

DUB - DEN

DUBDEN

Dublin

Mon 7/9

11:10-22:29

2 stops18h 19m

Denver Intl

Mon 28/9

10:45-09:15

2 stops15h 30m

£699

DublinDenver

DUB - DEN

DUBDEN

Dublin

Tue 7/7

09:30-00:17

1 stop21h 47m

Denver Intl

Tue 28/7

14:34-11:50

1 stop14h 16m

£1,456

Flights are sorted by cheapest return flights first.

Deals found on 10/5

Showing 1-10 of 22 resultsSorted by cheapest first
1
2
3

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
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

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

The best time to book flights from Ireland to Colorado is 41 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.

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

Currently, June is the cheapest month in which you can book a flight from Ireland to Colorado (average of £294). Flying from Ireland to Colorado in July is currently the most expensive (average of £514). 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?

Find hourly flight availability from Ireland to Colorado. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 14 May 2026.

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.

Reviews of airlines servicing Colorado

Get insights into the airlines that provide service to Colorado. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Colorado. Reviews last updated 14 May 2026.
Read through reviews of airlines operating flights from Ireland to Colorado, such as United Airlines,Aer Lingus, andAmerican Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,718 reviews
Check prices

Boarding

7.7

Crew

8.1

Entertainment

7.1

Food

6.6

Overall

7.4

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.
United Airlines
7.4
Good
9,718 reviews
United Airlines
7.4
Good
9,718 reviews
Check prices

Boarding

7.7

Crew

8.1

Entertainment

7.1

Food

6.6

Overall

7.4

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.
Aer Lingus
7.3
Good
1,561 reviews
United Airlines
7.4
Good
9,718 reviews
Check prices

Boarding

7.7

Crew

8.1

Entertainment

7.1

Food

6.6

Overall

7.4

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.
American Airlines
7.1
Good
11,663 reviews
United Airlines
7.4
Good
9,718 reviews
Check prices

Boarding

7.7

Crew

8.1

Entertainment

7.1

Food

6.6

Overall

7.4

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.
Icelandair
7.0
Good
654 reviews
United Airlines
7.4
Good
9,718 reviews
Check prices

Boarding

7.7

Crew

8.1

Entertainment

7.1

Food

6.6

Overall

7.4

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.
British Airways
6.7
Okay
7,980 reviews
United Airlines
7.4
Good
9,718 reviews
Check prices

Boarding

7.7

Crew

8.1

Entertainment

7.1

Food

6.6

Overall

7.4

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.

Related info for your journey

Find useful and relevant information for your journey from Ireland to Colorado. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How popular is this Ireland to Colorado flight route?

    The Ireland to Colorado flight path was viewed by 43 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 £401, Delta can have you in Colorado from Ireland in 16h 45m. Airlines will cover a distance of 4378 mi.

  • 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, June is the cheapest month in which you can book a flight from Ireland to Colorado (average of £294). Flying from Ireland to Colorado in July is currently the most expensive (average of £514). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ireland to Colorado

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Ireland to Colorado

Discover the top 5 airlines that operate flights from Ireland to Colorado. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 14 May 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£299Average£389FlexibilityNo cancel feeOn-time70%
Search British Airways flights
IcelandairCheapest£333Average£556FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
American AirlinesCheapest£361Average£461FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Aer LingusCheapest£363Average£596FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
United AirlinesCheapest£646Average£691FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Ireland to Colorado?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Colorado from Ireland today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Ireland to Colorado?

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.

Can Cheapflights notify me if prices for flights from Ireland to Colorado become cheaper?

Of course! You can now track prices for flights from Ireland to Colorado and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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