Denver to Dublin Flights on Aer Lingus from $820.19*
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Book Denver (DEN) to Dublin (DUB) flight deals*
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Business Class deals on flights to Dublin (DUB)
Denver (DEN)to
Dublin (DUB)
Apr 20 2026 - Apr 28 2026
Roundtrip*
Business
From
$3,879.72
Seen: 21 hrs ago
Denver (DEN)to
Dublin (DUB)
Apr 7 2026 - Apr 14 2026
Roundtrip*
Business
From
$3,881.36
Seen: 4 hrs ago
Denver (DEN)to
Dublin (DUB)
Apr 21 2026 - Apr 28 2026
Roundtrip*
Business
From
$3,910.32
Seen: 4 hrs ago
Denver (DEN)to
Dublin (DUB)
Mar 30 2026 - Apr 10 2026
Roundtrip*
Business
From
$4,113.67
Seen: 10 hrs ago
Denver (DEN)to
Dublin (DUB)
May 19 2026 - May 26 2026
Roundtrip*
Business
From
$4,136.75
Seen: 5 hrs ago
Denver (DEN)to
Dublin (DUB)
Apr 3 2026 - Apr 5 2026
Roundtrip*
Business
From
$4,178.79
Seen: 22 hrs ago
* Fares displayed include air transportation charges, taxes and fees. Fares displayed have been collected within the last 24 hours and may no longer be available at time of booking. Fares are economy class and may include connections with our partner airlines. Modifying this information may result in a different fare. Additional baggage fees and charges for optional products and services may apply.
Flights from Denver (DEN) to Dublin, Ireland
As Ireland’s flag carrier, Aer Lingus offers frequent flights, dependable schedules and a warm Irish welcome on routes between Ireland and the UK, Europe and North America.
Our long-haul transatlantic flights are designed to make going further feel effortless; with comfortable cabins, thoughtful onboard service and the added convenience of US Preclearance when flying from Dublin and Shannon.
Fly from Denver to Dublin with Aer Lingus and discover a capital filled with history and charm. Explore St. Patrick’s Cathedral, enjoy live music at Temple Bar, and dive into our fascinating history at a range of museums and monuments. Families will enjoy Dublinia, Phoenix Park, and Dublin Zoo, while couples and solo travellers will love the cosy pubs, authentic restaurants, and unique shopping boutiques. Plus, coastal walks, national parks, and countryside escapes are all just a couple of hours away. Dublin is the perfect blend of culture and relaxation for everyone.
Top things to do
Traditional Irish Music
Experience traditional Irish music session at one of Dublin's many pubs such as The Temple Bar.
Kilmainham Gaol
An unmissable place on a visit to Dublin. There are countless tales in the walls of the former prison. The excellent guided tour will take you through electrifying episodes in Irish history.
Phoenix Park
When you think Dublin, you probably picture cobbled lanes, river-spanning bridges and period houses. But it’s also home to the largest enclosed public park in any capital city in Europe.
Merrion Square
Merrion Square, a local favourite and lesser-known city park, is home to Oscar Wilde statue, across from his birthplace. This beautiful park also features food markets and outdoor cinema in the summer.
Take a tour of Dublin and its hidden gems in 59 seconds
Explore the sights and sounds of Dublin's fair city in our video "59 seconds in Dublin".
What are the direct flight options from Denver (DEN) to Dublin (DUB)?
Aer Lingus offers flights between Denver International Airport (DEN) and Dublin Airport (DUB). For the latest schedule, departure days, and available fares, check the official Aer Lingus booking page.
How long is the flight from Denver to Dublin with Aer Lingus?
The average direct flight time for Denver (DEN) → Dublin (DUB) is around 11 hours and 40 minutes, depending on routing and weather. Be sure to check the latest schedule when you book to confirm departure and arrival times.
What baggage allowance is included on the Denver to Dublin flight?
Your baggage allowance for flights from Denver (DEN) to Dublin (DUB) will depend on your fare type (e.g., Economy, Business) with Aer Lingus. Be sure to review the included checked and carry-on allowance, plus any additional fees for extra bags.
What happens if my Denver to Dublin flight is delayed or cancelled?
If your flight from Denver to Dublin (or return) is delayed, cancelled or rescheduled, Aer Lingus may offer alternative flights, refunds or accommodate changes according to their policy. It’s wise to familiarise yourself with your rights and airline terms for long-haul travel.
What are the best ways to get from Dublin Airport (DUB) to the city centre after arriving from Denver?
On arrival at Dublin Airport (DUB), you have options including airport buses, taxis and car hire to reach central Dublin. The journey from the airport to the city centre typically takes around 20–30 minutes depending on traffic.
More to discover
Taste your way through Ireland
Visit Ireland to find a food lover’s paradise, where traditional recipes are enlivened by contemporary techniques.
7 most Instagrammable spots in Dublin
Heading to Dublin on your next adventure? The Irish capital is a booming hub of nightlife, food and culture.
Ireland’s hidden gems
Here you’ll find some inspiration on how to skip the tourist trail and find something new on your visit.
A beginner's guide: Dublin
Famous for it's culture, literary connections and it's lively atmosphere, Dublin makes a fantastic city break for anyone looking for something new and exciting.
Other useful links
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Book Denver to Dublin flight deals*
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From | To | Fare Type | Dates | Price |
|---|---|---|---|---|
| Denver (DEN) | Dublin (DUB) | Roundtrip* / Economy | Sep 21 2026 - Oct 1 2026 | From $942.71 Seen: 19 hrs ago |
| Denver (DEN) | Dublin (DUB) | Roundtrip* / Economy | Sep 23 2026 - Sep 30 2026 | From $942.71 Seen: 13 hrs ago |
| Denver (DEN) | Dublin (DUB) | Roundtrip* / Economy | Sep 25 2026 - Oct 6 2026 | From $981.71 Seen: 21 hrs ago |
| Denver (DEN) | Dublin (DUB) | Roundtrip* / Economy | Sep 27 2026 - Oct 4 2026 | From $991.29 Seen: 15 hrs ago |
| Denver (DEN) | Dublin (DUB) | Roundtrip* / Economy | Sep 23 2026 - Oct 7 2026 | From $991.29 Seen: 18 hrs ago |
* Fares displayed include air transportation charges, taxes and fees. Fares displayed have been collected within the last 24 hours and may no longer be available at time of booking. Fares are economy class and may include connections with our partner airlines. Modifying this information may result in a different fare. Additional baggage fees and charges for optional products and services may apply.