$331 Find Cheap Flights from Dublin to Colorado

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dublin to Colorado departing on 5/12. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Colorado

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Dublin to Colorado, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Dublin to Colorado, as well as popular online travel agencies
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Flight Deals

Book Cheap Dublin to Colorado Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dublin to Colorado that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Dublin to Colorado

Fri, May 1 - Tue, May 12
Multiple Airlines Logo
9:30 am - 7:55 pm
DUB
-
DEN
17h 25m
1 stop
Multiple Airlines Logo
6:40 pm - 6:50 pm
DEN
-
DUB
17h 10m
1 stop
$392Multiple Airlines
Thu, May 7 - Mon, May 18
Finnair Logo
9:30 am - 7:55 pm
DUB
-
DEN
17h 25m
1 stop
Finnair Logo
10:28 am - 9:45 am
DEN
-
DUB
16h 17m
1 stop
$400Finnair
Fri, May 1 - Tue, May 12
Multiple Airlines Logo
9:40 am - 10:40 pm
DUB
-
DEN
20h 00m
2 stops
Multiple Airlines Logo
6:40 pm - 6:50 pm
DEN
-
DUB
17h 10m
1 stop
$444Multiple Airlines
Tue, Mar 10 - Tue, Mar 17
British Airways Logo
8:50 am - 4:30 pm
DUB
-
DEN
13h 40m
1 stop
British Airways Logo
6:25 pm - 7:55 am
DEN
-
DUB
31h 30m
1 stop
$462British Airways
Mon, Mar 9 - Mon, Mar 23
British Airways Logo
8:50 am - 4:30 pm
DUB
-
DEN
13h 40m
1 stop
British Airways Logo
6:25 pm - 7:40 pm
DEN
-
DUB
19h 15m
1 stop
$463British Airways
Tue, Mar 10 - Tue, Mar 17
British Airways Logo
8:50 am - 10:37 pm
DUB
-
DEN
19h 47m
2 stops
British Airways Logo
6:25 pm - 7:55 am
DEN
-
DUB
31h 30m
1 stop
$467British Airways
Thu, May 7 - Tue, May 19
Iberia Logo
9:30 am - 7:55 pm
DUB
-
DEN
17h 25m
1 stop
Iberia Logo
1:06 pm - 9:45 am
DEN
-
DUB
13h 39m
1 stop
$470Iberia
Tue, Apr 28 - Sat, May 2
American Airlines Logo
12:40 pm - 10:25 pm
DUB
-
COS
16h 45m
2 stops
American Airlines Logo
5:09 pm - 6:30 am
COS
-
DUB
30h 21m
2 stops
$971American Airlines
Tue, Apr 28 - Sat, May 2
Iberia Logo
9:30 am - 10:25 pm
DUB
-
COS
19h 55m
1 stop
Iberia Logo
5:09 pm - 9:45 am
COS
-
DUB
33h 36m
1 stop
$1,003Iberia
Tue, Apr 28 - Sat, May 2
American Airlines Logo
11:10 am - 10:25 pm
DUB
-
COS
18h 15m
2 stops
American Airlines Logo
12:21 pm - 5:10 am
COS
-
DUB
33h 49m
1 stop
$1,151American Airlines
Booking Insights

KAYAK's insights & trends for Dublin to Colorado flights

Get data-powered insights and trends into flights from Dublin to Colorado to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Dublin to Colorado?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Dublin to Colorado departing in May.

What is the cheapest Dublin to Colorado flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Colorado from Dublin found in the last 72 hours was to Denver, at $702 round-trip. The most popular route is from Dublin (DUB) to Denver (DEN), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $702.

Can I save money by flying with a layover from Dublin to Colorado?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 2 stops layover the cheapest option at $979 on average.

What is the cheapest month to fly from Dublin to Colorado?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Dublin to Colorado, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Dublin to Colorado is September, when tickets cost $606 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of round-trip tickets is $943 and $924 respectively.

What’s the cheapest day of the week to fly from Dublin to Colorado?

The average price of all round-trip flights from Dublin to Colorado clicked on KAYAK for each day over the last 12 months.

When flying from Dublin to Colorado, you should consider leaving on a Friday and avoid Mondays if you are looking for the best rates. For your return to Dublin, you’ll find the best rates on Mondays and the most expensive ones on Tuesdays.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Dublin to Colorado, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Dublin to Colorado, you should book around 2 weeks before departure, which saves you about 27% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 12 weeks before departure.

Good to know

Low seasonMarch
Cheapest flight$331
Best time to beat the crowds with an average 7% drop in price.
Most popular time to fly with an average 14% increase in price.
Flight from Dublin to Denver

FAQs - booking Colorado flights

  • How does KAYAK find such low prices on flights from Dublin to Colorado?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Dublin to Colorado.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Dublin to Colorado?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Dublin to Colorado is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Dublin to Colorado?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Dublin to Colorado with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Dublin to Colorado?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Dublin to Colorado up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Colorado?

    The cheapest time of day to fly to Colorado is generally in the evening, when round-trip flights cost $808 on average. Morning departures are around 100% cheaper than evening flights, on average. The most expensive time of day to fly to Colorado is generally in the evening, which is peak travel time and where the average cost of a ticket is $808.

Reviews of the top 4 airlines serving from Dublin to Colorado

 
See real verified KAYAK customer reviews for airlines flying from Dublin to Colorado. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Dublin to Colorado? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9219 reviews
7.3Comfort
7.7Boarding
8.1Crew
6.6Food
7.1Entertainment
Airline reviews

I just think it’s unfortunate that Airlines have completely abandoned the idea of serving any kind of decent or even real food on flights, not even on a four hour flight!? Those days are gone, I guess.

8.0 ExcellentAnonymous, Jan 2026
SJD - DEN
Read more United Airlines reviews

I just think it’s unfortunate that Airlines have completely abandoned the idea of serving any kind of decent or even real food on flights, not even on a four hour flight!? Those days are gone, I guess.

The flight was delayed by two de-icings. The seatbelt did not work correctly. It did not stay tight.

Hotter than Hades in August. Why, why do crews think that in the winter when we are already dressed for cold weather we need a cabin that is 82 degrees. Even the vents were blowing hot air.

Flight was delayed. De-icing took a while. When we landed had to wait for another plane to vacate our gate. Just an overall bad experience.

Not good - outbound flight was delayed and missed my connection even though I got to the gate after running through the airport - the agent would not let me on because the door was closed (flight had not left). There was no notification from United - overall experience was very disappointing. Additionally, I was downgraded from first class to coach on the alternative flight

United have really come back. Airport and boarding process is clear and good, app and information also very good

We Left Calgary 1/2 hour late and that made for a tight connection in Denver. After arriving everything was done to help us make our connection. That was a great effort. Thank You United

The entertainment available didn’t work for anyone on the flight. Long 6 hr flight with no entertainment option and the staff didn’t know until an hour into the flight when we made sure they knew about it. They had no way to fix it.

Late FA meant slow boarding. WiFi did not work. I’m a medium plus sized passenger. The seatbelt was for the first time ever barely fitting. And we delayed on the tarmac 40 min

My husband and I had boarded the flight from Denver to Chicago, and one of the last passengers to get on the plane opened the overhead bin above my husband's seat and threw his bag out of the bin to make space for his own. He said, "Mine is bigger!" The flight attendant supported the new passenger. They didn't care that my husband has two artificial knees and must have the foot room in front of his seat to be able to fit his legs in -- and to be able to stand, much less walk, at the end of the flight. I have never seen this happen before, and it was a disaster.

Update to handle the delay was very bad, crews no smiles or welcome or thanks. Don’t care attitude

It would be nice to have some low carb options in the snacks.

I was trying to take 2 one and a half hour one way trips and I experienced almost 20 delays over the course of those two trips. Only a few of them were due to weather the rest was disorganization

Crew was clearly not loving their jobs at any point of the entire trip. Flight back from Mexico, I asked if they had food for sale for the 2.5+hr flight and they did not have any. The business class trip to Mexico also had noted that the catering company forgot to load food. The last leg of trip back had a similarly unhappy crew, a broken toilet, and my seat was broken (reclining would not lock which made landing a crossfit like event). This was a bad week for AA.

No gates avail at DFW so our incoming had to wait 30 mins for a plane to push back because they Had mechanical. We boarded 90 mins delayed and then we had a mechanical. Come on American…do better. Also at my seat the tray table had not been cleaned. Floor had not been cleaned. But captain and flight Att were very picture and apologetic.

Crew was helpful and cheerful especially when they had no refreshments to work with. The plane was never serviced and had nothing but limited water and coffee onboard. For the price point, a concern of services.

Flight was smooth, quick and felt safe. The 2 delays not happening would have been better but I guess that happens in the airline industry

Flight was canceled. I asked to be rerouted to OKC and then took an Uber.

AA did not allow to board a flight because my connecting flight from DFW had been canceled. I got on another flight to another city. No service on the plane and I did not use their entertainment system.

On time on a day with lots of weather cancellations on other flights. Thank you for getting me home during a winter storm!

One of the best flight experiences I've have had in along time. Would fly with them again.

So, the trip from Dublin to LA did not really happen because the flight took off before we could finish the transfer.

Very nice experience. Flight had good entertainment system and good food options. Customer service was very friendly and nice as well.

Like - the crew were nice Dislike - sitting on the tarmac for long periods after boarding and landing.

I was not admitted to the flight!!! i need a refund for this.

It’s my new favourite airline! Everything was smooth and relaxed!

One of the best flights I've been on in a while. Very genuinely friendly staff. Courteous, kind, respectful. On a past flight (not Aer Lingus) I remember being woken up rudely to put my seat forward. Like a child being berated for something. Oddly jarring experience when someone could just tap you gently on the shoulder and gesture kindly. But I noticed the Aer Lingus staff were incredibly patient with everyone on the plane. It's the holiday season and I noticed a lot more elderly customers on the plane than I typically see flying, and the staff went above and beyond with helping accommodate people. Service throughout the flight was flawless. They came through offering water, and picking up garbage at perfect intervals. Seemed like this flight, everyone was on point. And the flight landed early on top of that

Seats are small, but comfortable and more space around you, so for a normal person the seats are perfect. If you are a big and fat individual, I would not think the seats are comfortable. All else was good and normal. Lots of movies to watch.

Customer service was excellent! The app was terrible, tried several times to check in without success! But the young lady that checked us in was absolutely terrific and helpful.

The same as I stated prior. We incurred extra costs that should be reimbursed, given we were not communicated with about schedule changes.

Overall satisfied and would fly with them again. They could improve the check-in efficiency at BOS, we got backed up because it seemed there were passengers requiring much more time for check in.

The customer service was unbeatable from the wheelchair assist team to the flight attendants. The pilot also did an excellent job managing the turbulence.

Delays at check-in, seemed like they were short ground staff at the time and some passengers needed extra processing.

Food - Non-Existent. You pay for everything. It is strictly Pay-to-Play!

The Experience Was Torture Spend a few extra dollars and avoid Icelandair at all costs. There is absolutely no refreshments, no food, no drinks. Only water, coffee, tea are free and at only half a tiny cup. Entertainment is limited selection of films, shows and mostly outdated. The seats are smaller than usual, with no cushion, no pillows, no blankets. First time in my life have I witness an airline asking for donations in spare change for a charity. With all the money Icelandair saves by starving the passenger, they can afford to give this charity on their own.

Again, we paid $ 328.00 for specific seats are were assigned those seats.

Never again. Terrible hospitality and human decency for an international flight. No food, no snacks, no beverages, blankets, pillows, limited entertainment. Tiny seats without any cushion and some do not even recline. I was shocked that they did not charge for seat belts. Never in my life have I witness asking for "spare change" for charity before landing on both legs of the flight. Icelandair can contribute on their own to said, so called, children's charity with the money saved from providing 3 centimeters of tea and water to hungry and dehydrated passengers.

Having been prepared for paying for everything on board other than water, coffee and tea the service was OK. Food and drink is expensive but the food was OK if limited in scope. Plane was clean and obviously well serviced. After complaining about having to walk in wind and rain to a get a bus to the airport the same thing happened at Portland. I’m sure you could get a terminal gate flight, complimentary food and drink for not much more money without traipsing through rain and slush in Reykjavik. Not bad but not great.

Iceland air transfer was bad. They lost my luggage and I just received it 11/1

The boarding process seem to take longer than necessary, resulting in a 20+ minute delay

Everything you need to know for your flight from Dublin to Colorado

Information on your arrival and departure airports