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Cheap flights from Ireland to Colorado from £286

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 16/3. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — DEN
14 Feb — 21 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ireland to Colorado

Keep the following information in mind while searching for Ireland to Colorado flight deals. Data was last updated 15 January 2026.

Round-trip from

£286

Popular in

June

Cheapest in

September

Average price

£624
16/3-30/3
  • 16/3-30/3
  • 2 total stops
  • 43h 45m total
  • Ireland to Colorado
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£70 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£8 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Find 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 15 January 2026.

Mon 16/320:40
DUB
-
DEN
1 stop25h 50m
Multiple Airlines
Mon 30/318:40
DEN
-
DUB
1 stop17h 55m
Multiple Airlines
Deal found 15/1£286
Fri 1/509:30
DUB
-
DEN
1 stop17h 25m
Multiple Airlines
Tue 12/518:40
DEN
-
DUB
1 stop12h 55m
Multiple Airlines
Deal found 15/1£286
Tue 22/908:35
DUB
-
DEN
1 stop14h 55m
Multiple Airlines
Tue 6/1018:40
DEN
-
DUB
1 stop17h 50m
Multiple Airlines
Deal found 14/1£289
Mon 27/409:30
DUB
-
DEN
1 stop17h 25m
Multiple Airlines
Mon 4/518:40
DEN
-
DUB
1 stop17h 00m
Multiple Airlines
Deal found 15/1£290
Tue 10/320:40
DUB
-
DEN
1 stop25h 50m
Multiple Airlines
Tue 17/318:25
DEN
-
DUB
1 stop16h 35m
Multiple Airlines
Deal found 14/1£306
Mon 23/208:50
DUB
-
DEN
1 stop13h 40m
British Airways
Sun 8/318:25
DEN
-
DUB
1 stop31h 30m
British Airways
Deal found 14/1£329
Tue 12/509:40
DUB
-
DEN
2 stops20h 00m
Finnair
Tue 26/514:22
DEN
-
DUB
1 stop14h 28m
Finnair
Deal found 14/1£330

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 15 January 2026.
Use the filters below to find and compare flights from Ireland to Colorado that are best for you.

Fly from

Ireland

Fly to

Colorado

Route

Depart

Return

Price

DublinDenver

DUB - DEN

DUBDEN

Dublin

Fri 1/5

09:30-19:55

1 stop17h 25m

Denver Intl

Tue 12/5

18:40-14:35

1 stop12h 55m

£286

DublinDenver

DUB - DEN

DUBDEN

Dublin

Tue 10/3

20:40-16:30

1 stop25h 50m

Denver Intl

Tue 17/3

18:25-17:00

1 stop16h 35m

£306

DublinDenver

DUB - DEN

DUBDEN

Dublin

Mon 27/4

09:40-22:40

2 stops20h 00m

Denver Intl

Mon 4/5

18:40-18:40

1 stop17h 00m

£327

DublinDenver

DUB - DEN

DUBDEN

Dublin

Tue 26/5

09:40-00:07

2 stops21h 27m

Denver Intl

Wed 3/6

14:22-11:50

1 stop14h 28m

£330

DublinDenver

DUB - DEN

DUBDEN

Dublin

Sat 31/1

17:55-16:21

2 stops29h 26m

Denver Intl

Tue 10/2

15:14-17:00

2 stops18h 46m

£333

DublinDenver

DUB - DEN

DUBDEN

Dublin

Sat 31/1

17:55-16:21

2 stops29h 26m

Denver Intl

Fri 13/2

12:21-17:00

2 stops21h 39m

£333

DublinDenver

DUB - DEN

DUBDEN

Dublin

Mon 25/5

08:30-16:30

1 stop15h 00m

Denver Intl

Thu 4/6

18:40-19:20

1 stop17h 40m

£349

DublinDenver

DUB - DEN

DUBDEN

Dublin

Wed 20/5

09:40-18:50

3 stops40h 10m

£348

DublinDenver

DUB - DEN

DUBDEN

Dublin

Tue 19/5

12:15-11:25

3 stops30h 10m

£360

DublinDenver

DUB - DEN

DUBDEN

Dublin

Wed 13/5

10:40-22:13

1 stop18h 33m

£364

Flights are sorted by cheapest return flights first.

Deals found on 15/1

Showing 1-10 of 17 results
1
2

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

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

Currently, April is the cheapest month in which you can book a flight from Ireland to Colorado (average of £321). Flying from Ireland to Colorado in July is currently the most expensive (average of £528). 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.

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 15 January 2026.
Read through reviews of airlines operating flights from Ireland to Colorado, such as United Airlines, Aer Lingus, andIcelandair. 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
9,164 reviews
Check prices

Food

6.6

Crew

8.1

Entertainment

7.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,164 reviews
United Airlines
7.4
Good
9,164 reviews
Check prices

Food

6.6

Crew

8.1

Entertainment

7.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Aer Lingus
7.2
Good
1,435 reviews
United Airlines
7.4
Good
9,164 reviews
Check prices

Food

6.6

Crew

8.1

Entertainment

7.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Icelandair
7.1
Good
596 reviews
United Airlines
7.4
Good
9,164 reviews
Check prices

Food

6.6

Crew

8.1

Entertainment

7.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
British Airways
6.7
Okay
7,680 reviews
United Airlines
7.4
Good
9,164 reviews
Check prices

Food

6.6

Crew

8.1

Entertainment

7.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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 79 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • 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, April is the cheapest month in which you can book a flight from Ireland to Colorado (average of £321). Flying from Ireland to Colorado in July is currently the most expensive (average of £528). 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

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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 4 airlines flying from Ireland to Colorado

Discover the top 4 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 15 January 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£318Average£456FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Aer LingusCheapest£412Average£631FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
IcelandairCheapest£469Average£582FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
United AirlinesCheapest£482Average£730FlexibilityNo 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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