DEN - DUB

$296 Find Cheap Flights from Denver to Dublin

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Denver to Dublin departing on 12/8. 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 Dublin

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Dublin.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Dublin.
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Everything you should know

Cheapest round-trip
$464
Overall average: $489
American Airlines
Sat 2/7Tue 2/17
DEN - DUB • 1 stop
Cheapest one-way
$296
Typical prices: $404-$753
JetBlue
Mon 12/8
DEN - DUB • 1 stop
Our travelers' advice
AI-generated summary based on content written by travel experts
Use the West Security Checkpoint at DEN for speed.
Dublin's 24-hour bus services offer scenic city views.
Expert advice
Expert advice
Expert advice
Expert advice
Video guide: How to find cheap flights to Dublin
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Top airlines
American Airlines
Cheapest • from $464 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
3 weeks
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 19% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
November
Cheapest • 23% price drop
May
Most popular
Good to know
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+1
+1
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+1
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Flight Deals

Cheap Flights from Denver to Dublin (DEN-DUB)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Denver to Dublin 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 Denver to Dublin

Sat, Feb 7 - Tue, Feb 17
American Airlines Logo
5:25 pm - 3:40 pmDEN-DUB
15h 15m1 stop
American Airlines Logo
11:30 am - 9:16 pmDUB-DEN
16h 46m1 stop
$464American Airlines
Find Deal
Fri, Feb 27 - Wed, Mar 4
Multiple Airlines Logo
5:25 pm - 2:20 pmDEN-DUB
13h 55m1 stop
Multiple Airlines Logo
8:50 am - 3:30 pmDUB-DEN
13h 40m1 stop
$465Multiple Airlines
Find Deal
Mon, Apr 20 - Fri, May 1
United Airlines Logo
3:20 pm - 9:45 amDEN-DUB
11h 25m1 stop
United Airlines Logo
9:50 am - 8:00 pmDUB-DEN
17h 10m1 stop
$472United Airlines
Find Deal
Mon, Apr 20 - Tue, Apr 28
Air Canada Logo
11:05 am - 8:15 amDEN-DUB
38h 10m2 stops
Air Canada Logo
9:50 am - 10:15 amDUB-DEN
31h 25m1 stop
$474Air Canada
Find Deal
Wed, Nov 12 - Wed, Nov 19
United Airlines Logo
7:46 am - 7:30 amDEN-DUB
16h 44m2 stops
United Airlines Logo
9:00 am - 6:07 pmDUB-DEN
16h 07m2 stops
$483United Airlines
Find Deal
Sat, Feb 28 - Wed, Mar 11
Delta Logo
12:59 am - 7:45 amDEN-DUB
23h 46m1 stop
Delta Logo
5:55 am - 8:28 pmDUB-DEN
20h 33m2 stops
$487Delta
Find Deal
Wed, Apr 1 - Wed, Apr 8
Delta Logo
5:30 am - 7:55 amDEN-DUB
19h 25m2 stops
Delta Logo
8:55 am - 8:03 pmDUB-DEN
18h 08m2 stops
$490Delta
Find Deal
Fri, Dec 12 - Mon, Dec 15
Icelandair Logo
3:40 pm - 10:15 amDEN-DUB
11h 35m1 stop
Icelandair Logo
11:30 am - 6:05 pmDUB-DEN
13h 35m1 stop
$495Icelandair
Find Deal
Fri, Dec 5 - Fri, Dec 12
Air Canada Logo
1:25 pm - 7:10 amDEN-DUB
10h 45m1 stop
Air Canada Logo
9:00 am - 7:55 pmDUB-DEN
17h 55m2 stops
$506Air Canada
Find Deal
Thu, Nov 27 - Mon, Dec 8
Icelandair Logo
3:40 pm - 10:15 amDEN-DUB
11h 35m1 stop
Icelandair Logo
11:30 am - 6:05 pmDUB-DEN
13h 35m1 stop
$519Icelandair
Find Deal
Booking Insights

KAYAK's insights & trends for Denver to Dublin flights

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

Find cheap flights to Dublin
Find cheap flights to Dublin

Planning a trip from Denver to Dublin? KAYAK’s data-powered insights will help you find cheap flights. Learn the best time to fly, how early to book your ticket, and other tips to secure great prices.

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

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

For Denver to Dublin, Wednesday is the cheapest day to fly on average and Tuesday is the most expensive. Flying from Dublin back to Denver, the best deals are generally found on Friday, with Monday being the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Denver to Dublin, 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 Denver to Dublin is November, where tickets cost $482 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $968 and $785 respectively.

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

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 1 stop layover the cheapest option at $554 on average.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Denver to Dublin, 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 Denver to Dublin, you should book around 3 weeks before departure, which saves you about 19% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 4 weeks before departure.

Expert advice

Expert advice for your flight from Denver to Dublin

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airports
DEN

Use the West Security Checkpoint at DEN for faster screening. It allows liquids and laptops to stay in bags, saving time.

Read more about DENby Harriet Baskas
DUB

For a smooth arrival at DUB, consider the 24-hour bus services to the city center, offering scenic views from double-decker buses.

Read more about DUBby Ramsey Qubein
Our travel experts
Ramsey Qubein

Ramsey Qubein

Expert on DUB

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more
Harriet Baskas

Harriet Baskas

Expert on DEN

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more

Good to know

Low seasonJanuary
Cheapest flight$296
Best time to beat the crowds with an average 21% drop in price.
Most popular time to fly with an average 14% increase in price.
Flight from Denver to Dublin

When to book flights from Denver to Dublin

Are your dates flexible? Find out the best times to travel from Denver to Dublin based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Denver to Dublin

  • When I land at DUB and come through customs, where can I exchange my US dollars for euros?

    The International Currency Exchange or ICE counters are available for currency exchange throughout DUB. You can find an ICE kiosk in Terminal 1 near the baggage claim. You can also find one just beyond security in Terminal 2.

  • Is there somewhere at DEN where my service animal can go to the bathroom while we wait for the plane?

    DEN airport has animal relief areas in all three terminals, where both pets and service animals can go to the bathroom. For terminals A, B, and C, the pet relief areas are in the middle of all the gates, close to the US mailbox. In the Jeppesen terminal, the animal relief area is on Level 2.

  • Is there any place where I can get a massage at DEN before I catch my long flight to DUB?

    Yes. At DEN, you can loosen up your muscles before your long flight at the spa called The Massage on Concourse B, on the mezzanine level. Other spas you could try are the Colorado Oasis and XpresSpa.

  • How can I fly from DEN to DUB?

    There are no non-stop flights from DEN to DUB. Airlines such as Air Canada, Lufthansa, and United Airlines operate DEN to DUB flights with one stop. Layovers occur in cities such as Toronto (YYZ), Chicago (ORD), and London (LHR).

  • What is the cheapest flight from Denver to Dublin?

    In the last 3 days, the lowest price for a flight from Denver to Dublin was $296 for a one-way ticket and $464 for a round-trip.

  • Do I need a passport to fly between Denver and Dublin?

    Yes, you’ll need a passport to travel to Dublin from Denver.

  • Which airports will I be using when flying from Denver to Dublin?

    Denver airport is called Denver Intl and the only airport in Dublin is Dublin.

  • Which airlines offer Wi-Fi service onboard planes from Denver to Dublin?

    Iberia, United Airlines, Lufthansa, Air France, and JetBlue offer inflight Wi-Fi service on the Denver to Dublin flight route.

  • Which aircraft models fly most regularly from Denver to Dublin?

    The Airbus A330-200 is the aircraft model that flies most regularly on the Denver to Dublin flight route.

  • Which airline alliances offer flights from Denver to Dublin?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Denver and Dublin, with SkyTeam being the most commonly used for this route.

  • What is the most popular layover when flying to Dublin from Denver?

    Reykjavik is the most popular layover city among KAYAK users traveling from Denver to Dublin.

  • Which is the best airline for flights from Denver to Dublin, Delta or KLM?

    The two airlines most popular with KAYAK users for flights from Denver to Dublin are Delta and KLM. With an average price for the route of $580 and an overall rating of 7.9, Delta is the most popular choice. KLM is also a great choice for the route, with an average price of $577 and an overall rating of 7.7.

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

    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 Denver to Dublin.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Dublin from Denver 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 Denver to Dublin?

    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 to Dublin with an airline and back to Denver with another airline. Booking your flights between Denver and DUB can sometimes prove cheaper using this method.

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

    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 to Dublin from Denver up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Denver to Dublin

  • Looking for a cheap flight? 25% of our users found flights on this route for $493 or less one-way and $666 or less round-trip.
  • To get into the city center of Dublin from Dublin Airport (DUB), you can take an Airlink Bus into the city, where you will be close to other bus stations and railway stations that can get you wherever you need to be throughout the Dublin area.
  • The USO at Denver International Airport (DEN) is located on Concourse A in the center court on Level 4. This lounge is open to active-duty, guard, or reserve military members and their families—and military retirees if there are amenities and room available. Flight boards are on display and amenities include snacks and drinks, restrooms, TV, computers, and occasional meals.
  • If you want quiet contemplation or a feeling of sanctuary when you land, DUB has a Multi-Faith Prayer Room on the Departures Level of Terminal 2. This room is intended to be welcoming to all and offensive to no one. Open 24h every day, this quiet space has prayer mats and chairs where you can settle. You must turn off your cell phone and remove your shoes when you enter this space.
  • If you are intending to meet someone at the airport in DUB, there is a place designed for passengers arriving from a foreign country to meet people picking them up. These locations are in Terminal 1, Arrivals, near the information desk, and in Terminal 2, Arrivals, near the Spar Shop.
  • DEN has one of the biggest airport therapy animal initiatives in the country. The DEN CATS (Canine Airport Therapy Squad) comprise about 80 dogs and one cat. Roaming throughout the airport with their handlers, these animals are recognizable due to their purple plaid vests that say “Pet Me.” These animals are designed to offer comfort to passengers who might be feeling stressed, anxious, sad, or confused. Passengers are encouraged to hug, pet, smooch, and take pictures with these four-legged helpers.

Reviews of the top 5 airlines serving from Denver to Dublin

 
See real verified KAYAK customer reviews for airlines flying from Denver to Dublin. 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 Denver to Dublin? 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 8991 reviews
7.1Entertainment
7.7Boarding
8.1Crew
6.6Food
7.3Comfort
Airline reviews

Great smooth flight. Had a seating change, but that was an improvement. Thanks United Airways Crew.

10.0 ExcellentBen, Oct 2025DEN - PVR
Read more United Airlines reviews

Great smooth flight. Had a seating change, but that was an improvement. Thanks United Airways Crew.

Flight was good but there are way to many announcements for credit cards etc.

Crew seemed a bit cranky. No seatback screens. But boarding was efficient and on time and we arrived early.

See previous note about the passenger in Denver who threw my husband's bag out of the overhead bin in order to maker room for his own. And the flight attendant back up the new passenger.

Terrible. They wouldn't allow me on my flight on the 14th..

Impressed with the service despite turbulence because of the weather. Both flights arrived before their scheduled times.

Great experience…left a bit behind schedule but made up fir that in the air and landed 10 minutes early 😁

The seat and leg room was not good. The food and beverage service was good.

For economy, it was very good. Staff was great, they even let some of us change seats for more leg room... Put an empty seat between us which was fantastic for a 12hr flight. Onboard entertainment was excellent, I think over 200 choices of movies/tv/etc The bad was the barely/nonfunctional wifi that cost either $16.99 or 1700 miles (full flight). It was atrocious... Definitely the worst of the last 3 long haul major airlines I was on the last few months.

Electric plugs didn't work. Entertainment system wasn't working

The only thing to like was that we eventually got to our destination

Delayed delayed delayed and no offer for food or vouchers

Disliked having to wait a little longer to disembark from the plan when we landed in London

Typically flights with AA are good. The staff are pleasant, welcoming, and efficient.

A couple ladies from the crew were so rude and nasty. Thought they were mad at having to be there especially if you asked a question. This will make me think twice next time if I book a flight with you.

Delays to take off and to leave the plane after landing added a lot of time to this flight.

Poor seat in rear of aircraft Food at Admiral’s Club Terminal D at DFW inedible

Always seated jammed in rear of aircraft Admirals Club food at DFW terminal D was absolute worst food experience and I pay $600/year to eat this dried out junk

Flight was delayed because of a bird strike. They had another plane available within 45 minutes.

Mostly good. Flight was crowded but Airline personnel were very friendly & accommodating. It would be good to have savory snacks rather than just sweet Biscoff cookies.

This flight left about 45 minutes late, and arrived about 45 minutes late, which was enough to make us miss our next flight and trap us in Dublin for 24 hours!!

I think the extra charges for seating with no added advantage and the added charges for baggage are excessive compared to other airlines.

I had zero issues with the flight. I did have issues with the staff at the airport. We missed out flight due to a delay with another airline. Talking to the staff and trying to get a new flight arranged was challenging. One guy was able to try to help us and got us on a new flight, but other staff was dismissive and clearly let us know it wasn’t their problem. All I kept thinking was… this is why air lingus has such a poor customer service reputation. I will be avoiding this airline in the future.

Food was just okay. Was surprised initially when was charged for a cup of tea when they first came through cabin for beverages. I’ve had far better long distance flights ( take some tips from Swiss airlines)

The boarding process was not good. From check-in, there was only one desk for check-in, which made for a very long line. I asked to print out my boarding pass for the next leg of my trip, also via Aer Lingus, and they said they couldn't. I was unable to do this on the app or online, either. Many fellow passengers I spoke to had the same issue. Because the plane was delayed taking off by 90 minutes, everyone had to quickly go to a desk for their next boarding pass which was chaos. Overall it wasn't a smooth or happy experience.

UNDERPRISER IS A CRIMINAL ORGANIZATION. I WILL NEVER LET THEM MANAGE ANOTHER TRIP. THEY ESSENTIALLY WERE TRYING TO EXTORT ME FOR "Permission" FROM THEM not TO USE MY ROME TO DUBLIN FLIGHT. I did not use this flight, and despite many communications with both Aer Lingus and Underpricers, to the end, they insisted I could not do this, while Aer Lingus kept telling me there was no problem. And in fact, I had zero problems catching that second leg of the trip home from Dublin to LAX.. As if harrassment, underpricers sent me a rude and insensitve email insisting Aer Lingus would not honor the flight home to LAX from DUB. ON THE MORNING OF THE TRAVEL!!! KAYAK SHOULD NOT USE UNDERPRICER "services" They are dishonest and sadistic.

We left 2 1/2 hours late. It wasn't the airlines fault but they did nothing to help the situation. Even water had a price tag. The next flight was better.

They specifically asked about my flight from bordeaux to Dublin, which was fine. A little lacking but for a 1 and a half hour flight - it was more than enough. I transferred at Dublin and went to Newark. And wow that flight was incredible.

I liked that I went thru customs in Dublin instead of having to do that in LA.

Aer Lingus unfortunately seems more like a budget airline than a national carrier. The plane was fine. The crew seemed a bit hurried and without that Irish charm (which may be an inappropriate stereotype and maybe not to be expected on a long international flight but other carriers seem to pull it off). My biggest complaint was that my gold status on Alaska Airlines--which gets me into lounges with BA and other partner airlines--was not accepted at lounges in Rome or Dublin, despite Aer Lingus on paper anyway partnering with Alaska. But the flight itself through Kayak was several hundred dollars cheaper than others, so overall, the right decision. Also, be aware that US customs on flights from Dublin occurs in Dublin (like Canadian airports) so if you have a connection or are just departing from Ireland, give yourself enough time (up to 30 minutes) to negotiate all of the lines. Still better than going through customs in the US after a 10 hour flight.

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

It was too cold in the plane my feet froze

Handling our luggage was the biggest issue - they lost it and we got it almost 3 days later. Really threw off the beginning of our trip and we really had to change our itinerary accordingly.

Seat was hard and uncomfortable and the temperature too warm and uncomfortable.

I flew Icelandair with my partner from Prague to the US. Overall flight time was around 12 hours, with a connecting flight in Iceland. I have flown internationally for years and with multiple airlines. Every airline serves you a meal when traveling internationally. Icelandair not only did not offer an inclusive meal, but they did not even offer a snack. The only things they served over our long flight was water and coffee. Ridiculous! Never again will I fly with Icelandair.

Worst airline I’ve ever flown. Delayed 5.5 hrs, missed connecting flight, and missed an entire day of vacation. Zero customer service

Everything sucked. No food, one small glass of water, a tiny coffee, 5.5 hour delay with no customer service. Would never recommend flying them.

The crew was wonderful at check in, the gate and on board. Felt the luggage had more room than the passengers. The seats were smaller than most domestic U.S. airlines. I'm only 5'2" and I had little legroom. There were only 2 bathrooms in coach. Needed more. The flight was very smooth but not the most comfortable.

There was no lounge at Boston for us to use. Typically flying first class overseas comes with lounge privileges. The seats did not recline even a little. My headset only worked on one side. I felt like I was flying on Ryan Air, not Icelandic Air.

The flight was delayed and as a consequence we missed our connecting flight. Were stuck for another 6h in Reykyavik. Appreciated that we got a generous food voucher at least. Would have liked to see more information upon arrival including a person waiting for connecting flight travellers and informing already that we will not catch the flight and directing us to the office dealing with the matter; unfortunately that didnt happen and we hence first needed to find out whether flight had indeed left already and then locate the adequate office to help us with booking us on the next connecting flight. Also my suitcase broke and it is not clear whether it is happened on the leg with Iceland Air from DC to Reykyavik or on the leg with Lufthansa from Reykyavik to Frankfurt. Finally, understood that it is a low cost company but at least provision of earplugs for free would have been nice, instead of making them buy.

The flat beds. Other than that, the place was not clean.

Moved me away from my family and refused to fix it.

I have always been pleased with their service. Would not change a thing

Seating and food was the worst we have experienced in 35 years of traveling for both personal and busines .

Economy seats felt more cramped than other flights we have taken.7 hr, painful sitting hours 6 and 7. Web site difficult to deal with. Originally put in for 1 special meal due to type 2. Meal was awful. Tried to change selection to standard for return flight, on app and website, unable to complete that action.

I was sleeping during dinner service, no one bothered to offer meal later, I remained hungry….until I got a morning sandwich!

Need to offer Better food from LAX to London Service from London to Delhi very delayed after take off.

Connection at Hethrow was horrible..We couldn't get out of the plane for an hour as they were buying people to the airport and there were not enough busses. We had 2 and half hf between flights so it was very tight. After departing plane we had to go thru security again. People with less time in between connections missed their flights

Poor all around experience. Sat at gate in Grand Rapids to Chicago for 2.5 hours. No food or water offered and no allowances to use restroom. Missed connecting flight to London and not offered any compensation including food or lodging. Not happy with AA, claims delay was weather related but no weather issues seen on radar. Take ownership for real reason behind delay which was actually the IT outage. Very disappointing and will not be recommending AA for domestic or international flights if this is the way that customers are treated.

Horrible… I was downgraded without notice, had to sit in economy and given my back injury was in pain most of the journey. I expect to be reimbursed for this inconvenience and after my return flight home, I never plan to fly with British Airways again.

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

Information on your arrival and departure airports

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