$363 Cheap Flights from Denver (DEN) to Dublin (DUB)

View $363 flight on Wed, Oct 22, 2025Opens in a new window

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Find available prices by choosing your travel dates.

Cheap Flights from Denver to Dublin (DEN-DUB)

Prices were available within the past 7 days and start at $363 for one-way flights and $524 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Icelandair
Wed, Oct 22 - Wed, Nov 5
DEN
Denver
DUB
Dublin
$524 Roundtrip, just found
$524
Roundtrip
just found
Select Icelandair flight, departing Wed, Oct 22 from Denver to Dublin, returning Wed, Nov 5, priced at $524 just found
Aer Lingus
Sun, May 4 - Fri, May 16
DEN
Denver
DUB
Dublin
$528 Roundtrip, found 5 days ago
$528
Roundtrip
found 5 days ago
Select Aer Lingus flight, departing Sun, May 4 from Denver to Dublin, returning Fri, May 16, priced at $528 found 5 days ago
Aer Lingus
Wed, Jul 30 - Wed, Aug 13
DEN
Denver
DUB
Dublin
$540 Roundtrip, found 5 days ago
$540
Roundtrip
found 5 days ago
Select Aer Lingus flight, departing Wed, Jul 30 from Denver to Dublin, returning Wed, Aug 13, priced at $540 found 5 days ago
Icelandair
Tue, Aug 5 - Sat, Aug 23
DEN
Denver
DUB
Dublin
$541 Roundtrip, found 2 days ago
$541
Roundtrip
found 2 days ago
Select Icelandair flight, departing Tue, Aug 5 from Denver to Dublin, returning Sat, Aug 23, priced at $541 found 2 days ago
Icelandair
Fri, Aug 15 - Sat, Aug 23
DEN
Denver
DUB
Dublin
$543 Roundtrip, found 11 hours ago
$543
Roundtrip
found 11 hours ago
Select Icelandair flight, departing Fri, Aug 15 from Denver to Dublin, returning Sat, Aug 23, priced at $543 found 11 hours ago
Delta
Sun, Oct 5 - Tue, Oct 28
DEN
Denver
DUB
Dublin
$549 Roundtrip, found 5 days ago
$549
Roundtrip
found 5 days ago
Select Delta flight, departing Sun, Oct 5 from Denver to Dublin, returning Tue, Oct 28, priced at $549 found 5 days ago
American Airlines
Wed, Oct 1 - Fri, Oct 10
DEN
Denver
DUB
Dublin
$550 Roundtrip, found 2 days ago
$550
Roundtrip
found 2 days ago
Select American Airlines flight, departing Wed, Oct 1 from Denver to Dublin, returning Fri, Oct 10, priced at $550 found 2 days ago
United
Tue, Aug 19 - Tue, Aug 26
DEN
Denver
DUB
Dublin
$551 Roundtrip, just found
$551
Roundtrip
just found
Select United flight, departing Tue, Aug 19 from Denver to Dublin, returning Tue, Aug 26, priced at $551 just found
Air Canada
Tue, Aug 19 - Tue, Aug 26
DEN
Denver
DUB
Dublin
$551 Roundtrip, just found
$551
Roundtrip
just found
Select Air Canada flight, departing Tue, Aug 19 from Denver to Dublin, returning Tue, Aug 26, priced at $551 just found
British Airways
Wed, Jul 16 - Mon, Jul 21
DEN
Denver
DUB
Dublin
$552 Roundtrip, found 1 day ago
$552
Roundtrip
found 1 day ago
Select British Airways flight, departing Wed, Jul 16 from Denver to Dublin, returning Mon, Jul 21, priced at $552 found 1 day ago

Frequently asked questions

How much does a flight from Denver Intl. Airport (DEN) to Dublin Airport (DUB) cost?
Pick up cheap return tickets starting at $528 from Denver Intl. Airport (DEN) to Dublin Airport (DUB). This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Aer Lingus flight leaving DEN on May 19 2025 and touching down at DUB. The price was last updated on April 22 2025 and has not changed since.
What is the cheapest month to fly from DEN to DUB?
The cheapest flights from DEN to DUB are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from DEN to DUB?
Take off from DEN to DUB with American Airlines. This carrier currently has the cheapest one-way fare on this route, starting at $663. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from DEN on May 9 2025. Prices were last updated on April 22 2025 and have not changed since.
How many flights per day from Denver Intl. Airport (DEN) to Dublin Airport (DUB)?
You’ll have to hop on a flight with a layover when traveling from Denver Intl. Airport (DEN) to Dublin Airport (DUB). There are no daily direct flights on this route. However, simply filter your search to include one or two stops to discover an option that works for you.
What day of the week has the most flights from DEN to DUB?
You’ll typically find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Denver Intl. Airport (DEN) to Dublin Airport (DUB)?
Book a flight from Denver Intl. Airport (DEN) to Dublin Airport (DUB) that takes off before 3 PM to reduce the likelihood of delays and cancellations. Departures after this time have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
Is it cheaper to buy a plane ticket from Denver Intl. Airport (DEN) to Dublin Airport (DUB) last-minute?
Last-minute fares from DEN to DUB are typically more expensive. For the lowest prices, start looking for flights as soon as possible. That said, if you’re flexible with your travel plans, it’s possible to score a cheap fare just before your departure.
Is it cheaper to book a DEN to DUB flight and hotel package?
Booking a DEN to DUB flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our wide range of stays and then add car rentals, flights and activities to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Denver Intl. Airport (DEN) to Dublin Airport (DUB)?
In most cases, you can reschedule or cancel your DEN to DUB flight. However, additional fees may apply, especially if your booking was made more than 24 hours ago. Double-check your itinerary for the airline’s policies and fees on flight changes, or if you need further information, go to our Customer Service portal.
*Available to One Key members.