Dublin

$289+ Cheap flights from Denver (DEN) to Dublin (DUB)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/12. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — DUB
Dec 17 — Dec 241
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1. Tell us where you want to go

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Cheapflights Tip: The best prices from Denver Intl to Dublin are usually found in November or February, booked 42 days in advance, depart on a Wednesday or Monday and return on a Wednesday

Find flight deals from Denver to Dublin

Cheapest flights from Denver to Dublin
Explore the most affordable flight options available from Denver to Dublin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 17, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 11/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/284:05 pmDEN - DUB
1 stop11h 15mLufthansa
Thu 12/410:40 amDUB - DEN
1 stop12h 50mLufthansa
Deal found 11/17$478
This KAYAK deal was found by Cheapflights users on 11/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/34:05 pmDEN - DUB
1 stop11h 15mLufthansa
Mon 12/155:55 pmDUB - DEN
1 stop27h 40mLufthansa
Deal found 11/16$479
This Gotogate deal was found by Cheapflights users on 11/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/46:00 amDEN - DUB
2 stops18h 10mMultiple Airlines
Thu 12/1112:05 pmDUB - DEN
1 stop19h 10mMultiple Airlines
Deal found 11/15$481
This United Airlines deal was found by Cheapflights users on 11/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/41:50 pmDEN - DUB
1 stop13h 30mUnited Airlines
Thu 12/1112:05 pmDUB - DEN
1 stop19h 10mUnited Airlines
Deal found 11/15$483
This CheapOair deal was found by Cheapflights users on 11/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2711:18 amDEN - DUB
2 stops36h 52mMultiple Airlines
Mon 12/85:55 pmDUB - DEN
1 stop32h 00mMultiple Airlines
Deal found 11/17$485
This United Airlines deal was found by Cheapflights users on 11/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2811:46 amDEN - DUB
1 stop12h 44mUnited Airlines
Thu 12/412:05 pmDUB - DEN
2 stops18h 39mUnited Airlines
Deal found 11/17$488
This KAYAK deal was found by Cheapflights users on 11/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/15:25 pmDEN - DUB
2 stops16h 45mLufthansa
Tue 12/1612:05 pmDUB - DEN
1 stop14h 22mLufthansa
Deal found 11/16$490
This CheapOair deal was found by Cheapflights users on 11/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/158:37 pmDEN - DUB
2 stops27h 33mMultiple Airlines
Sat 11/225:20 pmDUB - DEN
1 stop29h 40mMultiple Airlines
Deal found 11/14$493
This KAYAK deal was found by Cheapflights users on 11/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/305:45 pmDEN - DUB
1 stop22h 00mLufthansa
Mon 12/155:55 pmDUB - DEN
1 stop27h 40mLufthansa
Deal found 11/16$494
This KAYAK deal was found by Cheapflights users on 11/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2711:15 amDEN - DUB
1 stop16h 05mLufthansa
Mon 12/810:50 amDUB - DEN
1 stop34h 45mLufthansa
Deal found 11/17$495
This Air Canada deal was found by Cheapflights users on 11/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/311:18 amDEN - DUB
2 stops36h 52mAir Canada
Sun 12/79:00 amDUB - DEN
2 stops38h 30mAir Canada
Deal found 11/17$496

Cheap flight deals from Denver to Dublin

Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to Dublin (DUB). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 17, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$478
(Delta)

One-way from

$289
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$483

Good round-trip deal

$667 or less

Good one-way deal

$486 or less
Provider with most accurate pricing for Denver Intl-Dublin flight deals.
Provider most trusted by Cheapflights users for Denver Intl-Dublin flights.
From Denver Intl to Dublin
One-way flight from Denver Intl to Dublin
Highest demand for flights based on searches. 23% potential increase in price ($191 potential increase over avg. RT price).
Cheapest flight prices on average. 5% potential price decrease ($32 potential savings vs. average RT price).
Average for round-trip flights in November 2025
Price to beat on a round-trip flight from Denver Intl to Dublin.
Price to beat on a one-way flight from Denver Intl to Dublin.

Cheapflights Fare Finder

 
Customize your flight search to find flights from Denver to Dublin that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 17, 2025.
Use the filters below to find and compare flights from Denver to Dublin that are best for you.

Fly from

Denver

Fly to

Dublin

Route

Depart

Return

Price

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Mon 1/5

9:12 am-7:15 am

1 stop15h 03m

Dublin

Mon 1/12

8:50 am-3:30 pm

1 stop13h 40m

$481

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Mon 1/19

6:40 am-8:45 am

1 stop19h 05m

Dublin

Thu 1/29

5:55 am-4:41 pm

2 stops17h 46m

$482

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Wed 1/14

6:00 am-7:30 am

2 stops18h 30m

Dublin

Wed 1/21

9:00 am-5:58 pm

2 stops15h 58m

$483

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Thu 12/4

1:50 pm-10:20 am

1 stop13h 30m

Dublin

Thu 12/11

12:05 pm-12:15 am

1 stop19h 10m

$483

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Thu 1/1

10:30 am-7:10 am

1 stop13h 40m

Dublin

Fri 1/16

11:30 am-10:24 pm

1 stop17h 54m

$483

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Sat 2/14

5:49 pm-8:45 am

2 stops31h 56m

Dublin

Thu 2/26

9:45 am-9:16 pm

1 stop18h 31m

$488

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Thu 11/27

9:35 am-7:30 am

2 stops14h 55m

Dublin

Thu 12/11

1:35 pm-12:15 am

2 stops17h 40m

$488

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Fri 11/28

11:46 am-7:30 am

1 stop12h 44m

Dublin

Thu 12/4

12:05 pm-11:44 pm

2 stops18h 39m

$488

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Thu 1/15

5:25 pm-5:25 pm

1 stop17h 00m

Dublin

Wed 3/11

8:50 am-4:30 pm

1 stop13h 40m

$493

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Fri 1/16

5:25 pm-2:20 pm

1 stop13h 55m

Dublin

Thu 3/12

8:50 am-4:30 pm

1 stop13h 40m

$493

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/15

Showing 1-10 of 20 results
1
2

Compare providers for flights from Denver to Dublin

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Denver to Dublin in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
AranGrantPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
JustAirTicketPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Denver-Dublin flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Denver-Dublin flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Denver-Dublin flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Denver-Dublin flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Denver-Dublin flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Denver to Dublin

Have a flexible travel schedule? Discover the best time to fly to Dublin from Denver with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

How far ahead should I book a flight from Denver to Dublin?

Use this chart to determine the optimal time to book a round-trip flight from Denver to Dublin. Price data was last updated on November 14, 2025.

Booking 42 days in advance of your planned departure date is, on average, the best time to get cheap flights from Denver to Dublin. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Denver to Dublin?

Currently, February is the cheapest month in which you can book a flight from Denver to Dublin (average of $347). Flying from Denver to Dublin in June is currently the most expensive (average of $677). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from DEN to DUB?

Find hourly flight availability from Denver to Dublin. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 17, 2025.

A simple way to save on the total cost of your ticket is to fly from Denver to Dublin in the afternoon. If you’re flexible enough to do this you can expect to save up to 36% on your trip compared to booking a flight in the evening.

What is the cheapest day to fly from Denver to Dublin?

Use this chart to determine the cheapest time to fly round-trip from Denver to Dublin. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Denver to Dublin flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Tuesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Dublin

Get insights into the airlines that provide service to Dublin. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Dublin. Reviews last updated November 17, 2025.
Peruse reviews from past customers who have flown with United Airlines, American Airlines, and Aer Lingus from Denver to Dublin to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Comfort

7.3

Crew

8.1

Boarding

7.7

Entertainment

7.1

Food

6.6

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Comfort

7.3

Crew

8.1

Boarding

7.7

Entertainment

7.1

Food

6.6

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Comfort

7.3

Crew

8.1

Boarding

7.7

Entertainment

7.1

Food

6.6

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Comfort

7.3

Crew

8.1

Boarding

7.7

Entertainment

7.1

Food

6.6

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Comfort

7.3

Crew

8.1

Boarding

7.7

Entertainment

7.1

Food

6.6

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Comfort

7.3

Crew

8.1

Boarding

7.7

Entertainment

7.1

Food

6.6

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Related info for your journey

Find useful and relevant information for your journey from Denver to Dublin. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • How popular is this Denver to Dublin flight route?

  • How long is the flight from Denver to Dublin?

    For as low as $483, Delta can have you in Dublin from Denver in 18h 30m. Denver and Dublin are separated by a distance of 4378 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Denver to Dublin round-trip?

    Our cheapest airline available from Denver to Dublin is JetBlue. Our recent data shows that you can find tickets from as low as $131 on this airline. Additional options worth looking into are Icelandair and KLM, starting at $347 and $362 round-trip. JetBlue is 79% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the most reliable airlines from Denver to Dublin?

    Before booking your flight to Dublin from Denver, check out the most reliable airlines to get you to your destination on time: American Airlines (91%), Aer Lingus (91%), Iberia( 91%).

  • What are the cheapest flights from Denver to Dublin?

    While on average a flight from Denver to Dublin is generally $652, our data shows the cheapest flight currently is $414. When looking at the most popular route, (Denver Intl - Dublin), you can expect to pay $349 for that flight.

  • Where are the most common layover locations when flying from Denver to Dublin?

  • What are some popular things to do or see while on a layover in Reykjavik?

    Most Reykjavik visitors opt to spend their time experiencing Hallgrímskirkja, Harpa, and Laugardalslaug Geothermal Pool. Hallgrímskirkja, Harpa, and Laugardalslaug Geothermal Pool can be visited by traveling about 23.2 mi, 23.3 mi, and 24.6 mi respectively from Reykjavik Keflavik Intl. Those looking to explore during their layover in Reykjavik can rent a car from Reykjavik Keflavik Intl for about $48 per day.

  • What are some popular points of interest to see during a layover in London?

    Hyde Park, Buckingham Palace, and Piccadilly Circus are currently the most popular points of interest in London at the moment. Hyde Park, Buckingham Palace and Piccadilly Circus are located about 12.5 mi, 13.7 mi, and 14.1 mi, respectively from London Heathrow if you are interested in checking them out. Travelers can rent a car at London Heathrow for an average daily rate of $29 to make sightseeing during their layover a little easier.

  • What are points of interest worth seeing during a layover in Dallas?

    Most Dallas visitors opt to spend their time at American Airlines Center, Dallas World Aquarium, and Dos Equis Pavilion. American Airlines Center, Dallas World Aquarium, and Dos Equis Pavilion are located about 15.0 mi, 15.5 mi, and 18.3 mi, respectively from Dallas/Fort Worth. Those landing in Dallas looking to spend some time exploring during their layover can rent a car for about $57 per day.

  • Where are the least popular layover locations for Denver to Dublin flights?

  • Can I find deals for flights from Denver to Dublin that include hotel bookings?

    Yes. In addition to deals on Denver to Dublin flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Denver to Dublin?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Denver to Dublin.

  • Can I find deals for business class flights from Denver to Dublin?

    Yes. Cheapflights offers flight deals from Denver to Dublin by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Denver to Dublin?

    Currently, February is the cheapest month in which you can book a flight from Denver to Dublin (average of $347). Flying from Denver to Dublin in June is currently the most expensive (average of $677). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Dublin?

Book flights to Dublin if you plan to visit one of these locations
Maynooth
Castleknock
Swords
Wicklow
Leixlip

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Top 10 airlines flying from Denver to Dublin

Discover the top 10 airlines that operate flights from Denver to Dublin. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$131Average$655FlexibilityNo cancel feeOn-time62%
IcelandairCheapest$347Average$509FlexibilityNo cancel feeOn-time76%
KLMCheapest$362Average$596FlexibilityNo cancel feeOn-time75%
DeltaCheapest$363Average$576FlexibilityNo cancel feeOn-timeN/A
IberiaCheapest$372Average$569FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$388Average$584FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$397Average$614FlexibilityNo cancel feeOn-time69%
Air FranceCheapest$405Average$579FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$481Average$570FlexibilityNo cancel feeOn-time70%
Aer LingusCheapest$482Average$725FlexibilityNo cancel feeOn-timeN/A

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