DEN - DUB

$170 Find Cheap Flights from Denver to Dublin - Compare and Save

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 7/24. 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
$566
Typical prices: $456-$787
Icelandair, WestJet
Mon 8/31Wed 9/9
DEN - DUB • 1 stop
Cheapest non-stop
$821
Aer Lingus
Mon 8/3Wed 8/19
DEN - DUB • Non-stop
Nonstop flights
Mon, Wed, Fri, Sat, Sun
You can fly direct with Aer Lingus. Average duration is 8h 45m
Direct flights
Direct flights
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Direct flights
Direct flights
+1
Top layover airports
Cheapest • Avg $512 (round-trip)
Shortest trip • 11h 17m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 27% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 30% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to Dublin!
Flight Deals
Booking Insights
Expert advice
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

Mon, Aug 31 - Wed, Sep 9
Multiple Airlines Logo
8:10 pm - 11:05 am
DEN
-
DUB
31h 55m
1 stop
Multiple Airlines Logo
10:40 am - 11:20 am
DUB
-
DEN
31h 40m
2 stops
$566Multiple Airlines
Tue, Sep 1 - Fri, Sep 4
Multiple Airlines Logo
4:40 pm - 11:05 am
DEN
-
DUB
11h 25m
1 stop
Multiple Airlines Logo
10:40 am - 10:42 pm
DUB
-
DEN
19h 02m
1 stop
$568Multiple Airlines
Sat, Aug 29 - Wed, Sep 2
Multiple Airlines Logo
4:40 pm - 11:05 am
DEN
-
DUB
11h 25m
1 stop
Multiple Airlines Logo
10:40 am - 10:42 pm
DUB
-
DEN
19h 02m
1 stop
$569Multiple Airlines
Sun, Aug 30 - Wed, Sep 16
Multiple Airlines Logo
4:40 pm - 1:15 pm
DEN
-
DUB
13h 35m
1 stop
Multiple Airlines Logo
9:35 am - 11:04 pm
DUB
-
DEN
20h 29m
2 stops
$596Multiple Airlines
Fri, Sep 4 - Fri, Sep 11
Multiple Airlines Logo
4:40 pm - 1:15 pm
DEN
-
DUB
13h 35m
1 stop
Multiple Airlines Logo
10:40 am - 11:20 am
DUB
-
DEN
55h 40m
2 stops
$599Multiple Airlines
Tue, Sep 1 - Thu, Sep 10
Multiple Airlines Logo
4:40 pm - 11:05 am
DEN
-
DUB
11h 25m
1 stop
Multiple Airlines Logo
10:40 am - 11:20 am
DUB
-
DEN
31h 40m
2 stops
$612Multiple Airlines
Tue, Sep 1 - Wed, Sep 9
Multiple Airlines Logo
4:40 pm - 11:05 am
DEN
-
DUB
11h 25m
1 stop
Multiple Airlines Logo
10:40 am - 11:20 am
DUB
-
DEN
31h 40m
2 stops
$614Multiple Airlines
Tue, Sep 1 - Wed, Sep 9
Multiple Airlines Logo
4:40 pm - 11:05 am
DEN
-
DUB
11h 25m
1 stop
Multiple Airlines Logo
10:40 am - 11:20 am
DUB
-
DEN
31h 40m
2 stops
$615Multiple Airlines
Sun, Aug 30 - Wed, Sep 16
Multiple Airlines Logo
4:40 pm - 1:15 pm
DEN
-
DUB
13h 35m
1 stop
Multiple Airlines Logo
9:35 am - 11:04 pm
DUB
-
DEN
20h 29m
2 stops
$616Multiple Airlines
Mon, Aug 31 - Fri, Sep 11
Multiple Airlines Logo
4:40 pm - 1:15 pm
DEN
-
DUB
13h 35m
1 stop
Multiple Airlines Logo
9:35 am - 9:27 am
DUB
-
DEN
30h 52m
2 stops
$617Multiple Airlines
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.

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

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

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, Thursday 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 Wednesday 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 January, where tickets cost $442 (return) on average. On the other hand, the most expensive months are June and December, where the average cost of round-trip tickets is $995 and $775 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.

No, with an average price for the route of $945, prices are generally cheapest when you fly direct.

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 4 weeks before departure, which saves you about 27% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.

Expert advice

Expert advice for your flight from Denver to Dublin

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Ramsey Qubein

Ramsey Qubein

Expert on DUB

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.

Harriet Baskas

Harriet Baskas

Expert on DEN

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.

Good to know

Low seasonJanuary
Cheapest flight$170
Best time to beat the crowds with an average 31% drop in price.
Most popular time to fly with an average 8% 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).

  • How many flights are there between Denver and Dublin per day?

    There is a maximum of 1 nonstop flight a day that takes off from Denver and lands in Dublin, with an average flight time of 8h 45m. The most common departure time is 8:00 pm and most flights take off in the evening. Each week, there are 5 flights.

  • What is the cheapest flight from Denver to Dublin?

    In the last 5 days, the lowest price for a flight from Denver to Dublin was $170 for a one-way ticket and $566 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, Air France, and Lufthansa 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.

  • On which days can I fly direct from Denver to Dublin?

    You can catch a nonstop flight from Denver to Dublin on on Monday, Wednesday, Friday, Saturday, and Sunday.

  • 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 $684 and an overall rating of 7.8, Delta is the most popular choice. KLM is also a great choice for the route, with an average price of $663 and an overall rating of 7.8.

  • 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 $527 or less one-way and $971 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.

Prefer to fly direct from Denver to Dublin?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Denver Intl to Dublin.
Find which airlines fly direct from Denver Intl Airport to Dublin Airport, which days they fly and book direct flights.

Direct departures

Denver Intl to Dublin

Monday

Aer Lingus

Aer Lingus

Wednesday

Aer Lingus

Aer Lingus

Friday

Aer Lingus

Aer Lingus

Saturday

Aer Lingus

Aer Lingus

Sunday

Aer Lingus

Aer Lingus

See more direct flights

Direct returns

Dublin to Denver Intl

Monday

Aer Lingus

Aer Lingus

Wednesday

Aer Lingus

Aer Lingus

Friday

Aer Lingus

Aer Lingus

Saturday

Aer Lingus

Aer Lingus

Sunday

Aer Lingus

Aer Lingus

See more direct flights

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 9893 reviews
7.3Comfort
7.7Boarding
7.1Entertainment
8.1Crew
6.6Food
Airline reviews

I needed internet for critical matters and it never worked.

2.0 MediocreJorge Luis, Jun 2026
DEN - MEX
Read more United Airlines reviews

I needed internet for critical matters and it never worked.

Very easy ! Use the kiosk and bag drop and right to security within 10 min

The entertainment they offer could use some games, and maybe they could add some cookies to the snack menu. And the automated messages are a bit repetitive. But it was comfortable temperature wise and the seats were comfortable. The crew is very polite and helpful

This planes staff was top tier. Everything went great and had a great flight home.

Destroyed my suitcase. Tired of talking about it. Cancelling my unite mileage plus account.

New plane was lovely. Crew customer service is always lax but expected. Kraft on time and arrived safely.

It was a short flight so I was expecting too much

Had a one hour delay due to mechanical issue. I didn’t think I’d be able to make my connecting flight, but they waited for me and greeted me when I arrived to help things run smooth.

O’hsre taxi and deboarding took 40 minutes. Needed 20 minutes extra time between connecting flights to avoid running through terminal.

The Economy Plus rows weren’t as roomy as expected, and the meal service left a lot to be desired for.

The check in and boarding process was smooth, and the flight was fine.

We had a wonderful experience with Aer Lingus. The seats were too close for the long trip. The crew was absolutely perfect. They were so caring and thoughtful! My husband did not have a good experience with Air Lingus on the phone when trying to take care of getting better seating because he is disabled and needed a wheelchair prior to the day of our flight! Mariam R. in Boston was so helpful with seating and getting help for my husband. Filip Pytka who works for OCS was extremely helpful! He made sure that we had the lift because my husband could not climb the stairs to get onto the airplane. He took us from the gate all the way down to where we needed to be.

We were an hour and a half late, which caused my rental car company to cancel my reservation. We had no car, had to take a taxi to our hotel, and then a taxi back to get a new car the next day. Sometimes lack of on-time performance can end up costing the passenger a lot of money, none of which is covered by the airline that operated the late flight.

Overall good experience. But seats were small and uncomfortable for the price. Good entertainment, staff friendly and attentive.

Smooth quiet flight take off and landing both excellent. Food was mediocre. Boarding at gate was disorganized and unacceptable.

Very good trip. Nice clean aircraft. Helpful and friendly crew.

Crew members Grainne and Karen were extremely rude and unprofessional

I am very disappointed in that KAYAK sold me this flight as a business class it was not a business class. It was a regular economy class ticket. This was not Art Linus mistake. It was kayaks.

Crew was friendly and seats were comfortable. The connection however there were no free snacks or drinks.

Terrible. The test of an airline is how they deal with problems. There is very little to differentiate between airlines. Aer Lingus failed absolutely. They lost one of my bags even though we had more than a 2 hour connection in Dublin. Trying to get it back has been awful. In checking on line I can see that the bag is in Edinburgh and it was supposed to be delivered today. It wasn't. The number we have in the UK doesn't answer. I had to pay for an international call to speak to somebody. All the woman at the call centre could say was be patient wait. I can tell you when it will be delivered nor can I tell you who the courier is.

The flight attendants were extremely sourly and borderline rude. I did not feel appreciated as an AA customer once.

As we approached Denver, we encountered quite a bit of turbulence. I know this can sometimes be the case as I frequently fly this route but not on American. My gripe: Usually a pilot or co-pilot alerts passengers to the possibility of turbulance ahead of time. This did not occur nor did he communiucate during what was a pretty rough ride.

The economy seats are very cramped and the food was bizarre. However, I did like the greek yogurt option for breakfast.

Terrible. Our luggage was delayed and couldn’t be delivered for several days. We got bad information from the airline agents at baggage claim. We had to pick up our car so we wouldn’t be charged for an extra day. We got lost in the maze of airport parking. The baggage claim agents didn’t offer us any compensation for our extra time and expense. We are tired, hungry and very frustrated.

Don’t know they cancelled the flight day before I was to leave. They sent a email at 9:00 pm at night saying they cancelled. That is the smooth way to say we don’t want your business! I think they didn’t have enough people booking so they cancelled the flight! It’s all about the money anymore there is no honesty in business.

Mechanical delay and no compensation. Missed connection as a result of their delay. Mediocre performance and service. Horrible airline currently with horrible culture.

Any sort of gluten free snack option would be nice

Crew was late. Baggage was late. 2hs inside the plane waiting fro de-icing and traffic. A 3:30hs flight ended up being almost 6hs inside the airplane.

Timely boarding process, made up for lost time even after a lengthy wait for de-icing

horrible our connectig flight was late and we had to rush thru DFW to the next gate with 15 minutes time. Get to gate and its changed. no one knows whats going on . finally get a new gate and the plane has been sent back to the hanger . Boarded 4 hours after our original flight time and then sat at the gate for over an hour as the captian said the cargo doors were open and no one was in the airprot or on the ground to find out what was happening. this caused us to miss the first day of the tour as we missed our transfer and hotel meetup no apologies or accomodations offered to assist

Good. Rxception is the Entertainment - movies and TV shows all out of date…

I liked the crew but not the uncomfortable seats and lack of movie and tv selection.

They cancelled our connecting flight resulting in another layover reaching our final destination 8 hours later than scheduled.

On-time arrivals and departures. Crew helpful and friendly. Yet everything costs extra: seat selection, food, even airphones!

I had no idea that my ticket only paid for my right to get on the plane. They charged me $130 for my carry-on bag because it was 1 inch too big she claimed but it wasn’t! Then they wanted another fee for everything. I had no idea that Icelandair had changed to such a bargain basement airline. I was very disappointed.

Second time with Saga Premium, everything was fab, but the entertainment centre on both my flights didn't work, plus the seat on the NY to Rek flight (Airbus) was so solid and so uncomfortable. The 737Max flight's seat was much, much better.

The staff was kind and helpful. There was no food, and you needed to bring your own earphones to use the entertainment, which I didn’t know.

They wouldn’t check in my luggage even though I had one checked bag prepaid. So I took my bag to the gate and tried to check it in there and two employees scolded me for bringing a large bag to the gate. I told them I was trying to check it in and that it was prepaid, and they said they couldn’t guarantee that it would arrive at my destination but they finally let me drop it off when boarding the plane and pick it up right after exiting the plane. There was no food, and there was no entertainment.

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

Problems checking in both on the laptop and on the app. No free seating available at check-in as advertised - must pay for EVERY seat between $23 and $75. No way to cancel seat choice. App menus and site menus are not responsive, and some items are impossible to find. Crew and mobile assistance are friendly and helpful.

I’ve never been on a trans-Atlantic (or Pacific) flight where the seats don’t recline—not even a little. I asked my seat mate when BA starting doing this and he said “Oh, a few years ago.” I couldn’t sleep, with my head falling forward waking me continuously, and came off the plane incredibly stiff. I booked a Premium Economy seat to get a more comfortable seat, which was worse than most basic Economy seats I’ve ever booked.

The gate agent made me check my carry-on in Denver, even though I've traveled all over taking this case on the plane. Beware folks. Food in Premium Economy was quite good - excellent blanket! Flight attendants on the Heathrow-to-Budapest flight on 3-27-2026 were quite snappy. I got a frown when asked to unscrew the water bottle cap for me (I had a cast on my right arm). Also woke up right when they were handing out biscuits. She had given my rowmates one and was in the process of giving water when I asked for a biscuit. She scolded me and said, "You snooze, you lose". She did give me one, but I thought that comment was uncalled for.

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

Everything was very good! I personally struggled with the heat in the cabin for the first 2 hours

Flight was delayed. Though I checked in with BA live chat three times, our special meals were not provided.

Was 3 hrs delayed and my poor friend I met in Barcelona was waiting at airport for 3 hrs. Dallas airport was awful

Late in leaving the US. Late in arriving in UK. 2 plua hous on ground in UK before leaving. Late in arriving in Spain. Didn't get our bags until the next night.

Economy extremely cramped. Dinner was not good. Breakfast was quite good. Crew was excellent.

Comfortable, pleasant staff, quiet, good entertainment, food, drinks. Better than American (flight back) when we were crammed in and staff sometimes indifferent.

Not connecting flights. Missed my flight from Dublin to Liverpool because I arrived at Dublin one hour too late. For this mistake, they offered me a flight from Dublin to Manchester. Thats great and all, but I waste time and money to commute to Liverpool. Be sure to check the time of your connecting flights, because they sure don’t when they sell it to you

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

Information on your arrival and departure airports