DEN - DUB

€186 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 13/10. 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

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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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

Wed, 22 Oct - Wed, 5 Nov
Icelandair Logo
16:40 - 13:15DEN-DUB
13h 35m1 stop
Icelandair Logo
11:30 - 18:05DUB-DEN
13h 35m1 stop
€331Icelandair
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Wed, 5 Nov - Fri, 14 Nov
Icelandair Logo
15:40 - 10:15DEN-DUB
11h 35m1 stop
Icelandair Logo
11:30 - 18:05DUB-DEN
13h 35m1 stop
€332Icelandair
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Sun, 16 Nov - Fri, 28 Nov
Air Canada Logo
13:25 - 07:10DEN-DUB
10h 45m1 stop
Air Canada Logo
09:00 - 16:40DUB-DEN
14h 40m1 stop
€355Air Canada
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Tue, 7 Oct - Fri, 7 Nov
Air Canada Logo
08:40 - 07:45DEN-DUB
16h 05m1 stop
Air Canada Logo
09:00 - 10:23DUB-DEN
32h 23m1 stop
€360Air Canada
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Mon, 13 Oct - Wed, 22 Oct
United Airlines Logo
06:00 - 09:45DEN-DUB
20h 45m1 stop
United Airlines Logo
09:20 - 17:18DUB-DEN
14h 58m1 stop
€362United Airlines
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Wed, 12 Nov - Fri, 21 Nov
United Airlines Logo
11:15 - 09:55DEN-DUB
15h 40m2 stops
United Airlines Logo
09:00 - 16:40DUB-DEN
14h 40m1 stop
€368United Airlines
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Sun, 16 Nov - Wed, 26 Nov
Delta Logo
11:34 - 08:45DEN-DUB
14h 11m2 stops
Delta Logo
09:45 - 17:51DUB-DEN
15h 06m1 stop
€369Delta
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Sun, 16 Nov - Tue, 25 Nov
Delta Logo
11:34 - 08:45DEN-DUB
14h 11m2 stops
Delta Logo
09:45 - 23:14DUB-DEN
20h 29m1 stop
€370Delta
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Wed, 15 Oct - Thu, 23 Oct
Aer Lingus Logo
19:55 - 11:40DEN-DUB
8h 45mdirect
Aer Lingus Logo
15:25 - 17:59DUB-DEN
9h 34mdirect
€377Aer Lingus
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Wed, 15 Oct - Wed, 22 Oct
Aer Lingus Logo
19:55 - 11:40DEN-DUB
8h 45mdirect
Aer Lingus Logo
15:25 - 17:59DUB-DEN
9h 34mdirect
€383Aer Lingus
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Everything you should know

Top airlines
Icelandair
Cheapest • from €331 (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 24% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
November
Cheapest • 22% price drop
May
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Direct flights
6 days a week
There are direct flights from Denver to Dublin 6 days a week: Mon, Wed, Thu, Fri, Sat, Sun.
Direct flights
Direct flights
Direct flights
Direct flights
Cheapest return fare
€331
Overall average: €454
Icelandair
Wed 22/10Wed 5/11
DEN - DUB • 1 stop
Cheapest direct flights
€377
Aer Lingus
Mon 13/10Wed 22/10
DEN - DUB • Direct
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We hope you love your trip to Dublin!
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’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.

Your flight ticket price will generally be cheaper if you fly to Dublin on a Monday and more expensive on a Friday. On your return trip to Denver, you should consider flying back on a Friday, and avoid Sundays for better deals.

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 €407 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is €800 and €668 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.

No, with an average price for the route of €466, 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 3 weeks before departure, which saves you about 24% 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€186
Best time to beat the crowds (20% less expensive on average)
Most popular time to fly (17% 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 €218 for a one-way ticket and €388 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, Air France, United Airlines, JetBlue, 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?

    oneworld is the only airline alliance operating flights between Denver and Dublin.

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

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

  • 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.

Prefer to fly direct from Denver Intl to Dublin?

 
Nonstop data is based off flight results for the next 60 days. Find direct flights from all airlines flying nonstop 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

Thursday

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

Thursday

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 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 1270 reviews
6.5Food
7.3Boarding
7.1Comfort
6.9Entertainment
8.0Crew
Airline reviews

Too hot. Asked for an extra glass of water and was ignored. Asked to sit in empty seats that were open because it was so hot and crowded and was denied and the seats were empty the entire flight

6.0 GoodAnonymous, Sept 2025IND - DUB
Read more Aer Lingus reviews

Too hot. Asked for an extra glass of water and was ignored. Asked to sit in empty seats that were open because it was so hot and crowded and was denied and the seats were empty the entire flight

Terrible leg room - I’m 5’3” and my knees were touching the seat in front of me. When the person sitting in front of me leaned back, there was about 15 inches of space between my head and the TV screen which made it awkward to view movies. Last year they had decent food, but this year the only tasty item on the trip was dessert.

The flight was delayed leaving Philadelphia due to “catering” and consequently arrived in Dublin some 75 minutes later than scheduled. Consequently this caused me to miss my connecting flight to Glasgow and I had to spend the night in Dublin.

It was truly a horrible flight. We were delayed almost 2 hours. The seats were so tiny, my legs were hurting the entire flight. When i finally made it to Ireland i missed my connecting flight because we left Newark late. I will most likely never fly Aer Lingus again

Coming from the EU to the USA, Aer Lingus is a very good choice. You clear U.S. border control while still at the departure airport, so when you land in the States, you don’t need to go through the entry process again — very efficient and fast. In terms of comfort, Aer Lingus is better than the usual EU carriers like KLM, Lufthansa, or Air France, and also better than United. There’s more legroom, and the crew is helpful and kind. The food is average but slightly better than most airlines. Overall, the crew is definitely better than on American Airlines, though not quite at the level of Virgin.

Best travel day I've had in a long time. Everything went perfectly, no delays. 10 out of 10

Seat is business could have been a lot cleaner, but space was nice and seat was comfortable

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.

A little late, but an overall pleasant flight. Staff pleasent hand helpful, a great start to our holiday.

Poor check-in experience in Manchester. Delayed boarding and check-in agent never explained how to transfer in NYC to JetBlue.

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

Information on your arrival and departure airports

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