DEN - DUB

€212 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 2/2. 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, 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 Denver to Dublin, as well as popular online travel agencies
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Everything you should know

Cheapest return fare
€336
Overall average: €440
Icelandair
Fri 23/1Tue 27/1
DEN - DUB • 1 stop
Cheapest direct flights
€424
Aer Lingus
Wed 13/5Wed 20/5
DEN - DUB • Direct
Top airlines
United Airlines
Cheapest • from €393 (return)
Aer Lingus
Best reviews • 7.2 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
3 weeks
in advance
Our data shows that travellers who book at least 3 weeks in advance save around 17% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
November
Cheapest • 24% price drop
May
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Dublin!
Flight Deals
Booking Insights
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 return 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 return flight deals from Denver to Dublin

Fri, 23 Jan - Tue, 27 Jan
Icelandair Logo
15:40 - 10:15
DEN
-
DUB
11h 35m1 stop
Icelandair Logo
11:30 - 18:05
DUB
-
DEN
13h 35m1 stop
€336Icelandair
Tue, 24 Mar - Thu, 2 Apr
Icelandair Logo
16:40 - 10:15
DEN
-
DUB
11h 35m1 stop
Icelandair Logo
14:15 - 19:00
DUB
-
DEN
11h 45m1 stop
€340Icelandair
Fri, 6 Feb - Sun, 15 Feb
Icelandair Logo
15:40 - 10:15
DEN
-
DUB
11h 35m1 stop
Icelandair Logo
11:30 - 18:05
DUB
-
DEN
13h 35m1 stop
€343Icelandair
Wed, 14 Jan - Thu, 22 Jan
Icelandair Logo
15:40 - 10:15
DEN
-
DUB
11h 35m1 stop
Icelandair Logo
11:30 - 18:05
DUB
-
DEN
13h 35m1 stop
€347Icelandair
Mon, 23 Mar - Thu, 2 Apr
Icelandair Logo
16:40 - 10:15
DEN
-
DUB
11h 35m1 stop
Icelandair Logo
14:15 - 19:00
DUB
-
DEN
11h 45m1 stop
€351Icelandair
Mon, 19 Jan - Sun, 25 Jan
Icelandair Logo
15:40 - 10:15
DEN
-
DUB
11h 35m1 stop
Icelandair Logo
11:30 - 18:05
DUB
-
DEN
13h 35m1 stop
€365Icelandair
Mon, 12 Jan - Sat, 17 Jan
Icelandair Logo
15:40 - 10:15
DEN
-
DUB
11h 35m1 stop
Icelandair Logo
11:30 - 18:05
DUB
-
DEN
13h 35m1 stop
€366Icelandair
Sat, 21 Mar - Thu, 2 Apr
Air Canada Logo
11:19 - 06:10
DEN
-
DUB
36h 51m2 stops
Air Canada Logo
09:50 - 18:04
DUB
-
DEN
39h 14m2 stops
€375Air Canada
Wed, 21 Jan - Wed, 28 Jan
Multiple Airlines Logo
11:15 - 08:10
DEN
-
DUB
13h 55m1 stop
Multiple Airlines Logo
09:00 - 10:23
DUB
-
DEN
32h 23m1 stop
€381Multiple Airlines
Tue, 24 Feb - Tue, 10 Mar
Brussels Airlines Logo
11:15 - 08:10
DEN
-
DUB
13h 55m1 stop
Brussels Airlines Logo
10:40 - 18:02
DUB
-
DEN
13h 22m1 stop
€381Brussels 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.

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 €413 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is €835 and €662 respectively.

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

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a stopover may cost you more time, but you can also save money on the route, with a 1 stop stopover the cheapest option at €412 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 17% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 4 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight€212
Best time to beat the crowds (19% less expensive on average)
Most popular time to fly (11% more expensive on average)
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 return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns 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 €212 for a one-way ticket and €336 for a return.

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

    On your way to Dublin, you’ll fly out from Denver Intl. You’ll be landing at Dublin.

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

    Iberia, Lufthansa, United Airlines, 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.

  • 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 return ticket. You could then fly to Dublin with an airline and back to Denver with another airline.

  • 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

  • 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 airline flying 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.
7.2
Aer LingusOverall score based on 1394 reviews
8.0Crew
7.0Entertainment
6.6Food
7.1Comfort
7.4Boarding
Airline reviews

The folks and flights were fantastic. I unfortunately wasn’t able to order a meal that I could eat (I’m gluten free) because I got my ticket through kayak, but they tried their best to find something to help me get through the long flight and I’ll forever remember their kindness.

10.0 ExcellentAnonymous, Dec 2025
BCN - DUB
Read more Aer Lingus reviews

The folks and flights were fantastic. I unfortunately wasn’t able to order a meal that I could eat (I’m gluten free) because I got my ticket through kayak, but they tried their best to find something to help me get through the long flight and I’ll forever remember their kindness.

Seats are terribly cramped. I’m only 5’2” and my knees were practically in my face. No room to put a normal size bag under the seat and when the person in front of you reclined their seat your tray table was in your lap. This is the airline’s way of cramming more seats into the plane to make more money. I’ll think twice about taking Aer Lingus again since there are a few other options from Boston to the Emerald Isle.

Couldn’t check In online, message was couldn’t check in until Sunday morning though plane left Saturday night. Checked in okay at airport but caused slot if stress.

It all went very well, except for the ramp coordination upon landing in Boston. That, however, was resolved in fairly short order.

NOTE. Aer Lingus does not accept American Express. I was denied boarding because I could not pay the fee for my oversized bag. I did not have another credit or debit card. Moreover, at CDG, I needed to check my bag at one location, go to another location to check my oversized bag and a THIRD location to pay for my oversized bag. Hence, once I was denied boarding, my bags were already en route to the plane. To retrieve them I needed to go to a FOURTH location in another part of the terminal. Last, Aer Lingus will not reimburse me for any portion of my ticket. I lost $1000 bc Aer Lingus doesn’t accept American Express at the CDG counter even though I paid for my ticket through the Kayak link with Amex. Kayak should remedy this situation if they want to continue to partner with Aer Lingus.

The biking process was confusing and I was called for a seat assignment from I number I repeatedly though was spam, but the flight itself was great

It was poor overall. They cancelled our flight and changed it without notifying us. So we incurred extra costs by having to book a hotel for our layover. They say it's Kayak/Underpricer's responsibility to reimburse us. But Kayak/Underpricer have said it's Aer Lingus' responsibility because they are the ones with our 'booking information.' I find this situation confusing and unacceptable.

My experience with Aer Lingus was not too good. First, because of the last minute delayed flight from Amsterdam to Dublin we almost missed our flight from Dublin to Philadelphia. Secondly, the flight from Dublin to Philadelphia had very uncomfortable seats especially it was a very long flight. My buttocks were constantly in pain for sitting on these seats for this long. Lastly, the service in the plane was also slow. I asked for a second cup of water and the hostess told me he'll be right back with that where it took him over an hour to come back with water. It was warm in the plane and I was very thirsty. Overall this airline needs much improvement in their services.

Staff was generally friendly and helpful. Attendants collecting trash were somewhat inattentive though.

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!!

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

Information on your arrival and departure airports