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$170+ 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 7/12. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — DUB
Jul 27 — Aug 31
Mon 7/27
Mon 8/3
1 adult, Economy
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Cheapflights Tip: The best prices from Denver Intl to Dublin are usually found in January or February, booked 49 days in advance, depart on a Thursday or Friday and return on a Wednesday

Cheap 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 June 27, 2026.

This Mytrip deal was found by Cheapflights users on 6/22. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/318:10 pm
DEN
-
DUB
1 stop31h 55m
Multiple Airlines
Wed 9/910:40 am
DUB
-
DEN
2 stops31h 40m
Multiple Airlines
Deal found 6/22$566
This Priceline deal was found by Cheapflights users on 6/25. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/14:40 pm
DEN
-
DUB
1 stop11h 25m
Multiple Airlines
Fri 9/410:40 am
DUB
-
DEN
1 stop19h 02m
Multiple Airlines
Deal found 6/25$568
This Expedia deal was found by Cheapflights users on 6/23. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/294:40 pm
DEN
-
DUB
1 stop11h 25m
Multiple Airlines
Wed 9/210:40 am
DUB
-
DEN
1 stop19h 02m
Multiple Airlines
Deal found 6/23$569
This Gotogate deal was found by Cheapflights users on 6/25. 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.
Fri 9/44:40 pm
DEN
-
DUB
1 stop13h 35m
Multiple Airlines
Fri 9/1110:40 am
DUB
-
DEN
2 stops55h 40m
Multiple Airlines
Deal found 6/25$599
This Gotogate deal was found by Cheapflights users on 6/22. 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.
Tue 9/14:40 pm
DEN
-
DUB
1 stop11h 25m
Multiple Airlines
Thu 9/1010:40 am
DUB
-
DEN
2 stops31h 40m
Multiple Airlines
Deal found 6/22$612
This Gotogate deal was found by Cheapflights users on 6/22. 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.
Tue 9/14:40 pm
DEN
-
DUB
1 stop11h 25m
Multiple Airlines
Wed 9/910:40 am
DUB
-
DEN
2 stops31h 40m
Multiple Airlines
Deal found 6/22$614
This Kiwi.com deal was found by Cheapflights users on 6/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/304:40 pm
DEN
-
DUB
1 stop13h 35m
Multiple Airlines
Wed 9/169:35 am
DUB
-
DEN
2 stops20h 29m
Multiple Airlines
Deal found 6/26$616
This Kiwi.com deal was found by Cheapflights users on 6/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/314:40 pm
DEN
-
DUB
1 stop13h 35m
Multiple Airlines
Fri 9/119:35 am
DUB
-
DEN
2 stops30h 52m
Multiple Airlines
Deal found 6/23$617
This Kiwi.com deal was found by Cheapflights users on 6/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/304:40 pm
DEN
-
DUB
1 stop13h 35m
Multiple Airlines
Fri 9/119:35 am
DUB
-
DEN
2 stops30h 52m
Multiple Airlines
Deal found 6/23$618
This Kiwi.com deal was found by Cheapflights users on 6/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/284:40 pm
DEN
-
DUB
1 stop13h 35m
Multiple Airlines
Fri 9/119:35 am
DUB
-
DEN
2 stops30h 52m
Multiple Airlines
Deal found 6/23$619
This Kiwi.com deal was found by Cheapflights users on 6/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/304:40 pm
DEN
-
DUB
1 stop13h 35m
Multiple Airlines
Thu 9/1710:40 am
DUB
-
DEN
2 stops31h 40m
Multiple Airlines
Deal found 6/26$621

Find 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 June 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$566
(Mytrip)

One-way from

$170
(oojo)

Popular in

June

Cheapest in

January

Average price

$995

Good round-trip deal

$971 or less

Good one-way deal

$527 or less
Provider with most accurate pricing for Denver Intl-Dublin flight deals.
Search Deals
Provider most trusted by Cheapflights users for Denver Intl-Dublin flights.
Search Deals
From Denver Intl to Dublin
Search Deals
One-way flight from Denver Intl to Dublin
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($173 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($33 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals
Price to beat on a round-trip flight from Denver Intl to Dublin.
Search Deals
Price to beat on a one-way flight from Denver Intl to Dublin.
Search Deals

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 June 27, 2026.
Use the filters below to find and compare flights from Denver to Dublin that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Sun 10/18

11:10 am-7:55 am

1 stop13h 45m

Dublin

Fri 11/6

5:45 am-3:56 pm

2 stops17h 11m

$703

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Sun 11/1

10:45 am-7:45 am

1 stop14h 00m

Dublin

Sat 11/7

9:40 am-12:23 am

1 stop21h 43m

$706

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Tue 11/3

5:40 am-8:45 am

2 stops20h 05m

Dublin

Thu 11/12

8:50 am-8:00 pm

2 stops18h 10m

$708

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Thu 9/17

11:59 pm-7:20 am

1 stop24h 21m

Dublin

Tue 9/22

9:20 am-10:31 am

1 stop32h 11m

$709
Quickest round-trip

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Mon 8/31

2:22 pm-10:00 am

1 stop12h 38m

Dublin

Wed 9/9

9:15 am-3:40 pm

1 stop13h 25m

$735

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Sun 9/13

10:55 am-10:00 am

1 stop16h 05m

Dublin

Thu 9/24

5:55 am-3:24 pm

2 stops16h 29m

$738

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Sun 7/19

7:30 pm-9:45 am

1 stop31h 15m

Dublin

Tue 8/11

9:50 am-10:33 am

1 stop31h 43m

$739

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Mon 8/3

6:05 am-10:00 am

1 stop20h 55m

Dublin

Tue 8/11

12:00 pm-11:34 pm

1 stop18h 34m

$741

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Mon 9/21

11:10 am-9:15 am

2 stops15h 05m

Dublin

Thu 9/24

5:55 am-3:24 pm

2 stops16h 29m

$742

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Mon 7/20

9:39 am-8:45 am

1 stop16h 06m

Dublin

Wed 7/29

5:55 am-3:30 pm

2 stops16h 35m

$768

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/24

Showing 1-10 of 20 resultsSorted by cheapest first
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 June.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy2 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*1 star
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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Denver-Dublin flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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?

Booking 48 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, January is the cheapest month in which you can book a flight from Denver to Dublin (average of $442). Flying from Denver to Dublin in June is currently the most expensive (average of $995). 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 June 27, 2026.

When flying from Denver to Dublin, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost to fly round-trip from Denver to Dublin?

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 June 27, 2026.
Peruse reviews from past customers who have flown with United Airlines,Aer Lingus, andAmerican Airlines 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.
United Airlines
7.4
Good
9,894 reviews

Comfort

7.3

Entertainment

7.1

Crew

8.1

Overall

7.4

Boarding

7.7

Food

6.6

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
United Airlines
7.4
Good
9,894 reviews
United Airlines
7.4
Good
9,894 reviews

Comfort

7.3

Entertainment

7.1

Crew

8.1

Overall

7.4

Boarding

7.7

Food

6.6

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
Aer Lingus
7.3
Good
1,628 reviews
United Airlines
7.4
Good
9,894 reviews

Comfort

7.3

Entertainment

7.1

Crew

8.1

Overall

7.4

Boarding

7.7

Food

6.6

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
American Airlines
7.1
Good
11,778 reviews
United Airlines
7.4
Good
9,894 reviews

Comfort

7.3

Entertainment

7.1

Crew

8.1

Overall

7.4

Boarding

7.7

Food

6.6

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
Icelandair
7.0
Good
690 reviews
United Airlines
7.4
Good
9,894 reviews

Comfort

7.3

Entertainment

7.1

Crew

8.1

Overall

7.4

Boarding

7.7

Food

6.6

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
British Airways
6.7
Okay
8,072 reviews
United Airlines
7.4
Good
9,894 reviews

Comfort

7.3

Entertainment

7.1

Crew

8.1

Overall

7.4

Boarding

7.7

Food

6.6

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.

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.

  • What airports do I use to fly from Denver to Dublin?

    You will need to book a flight from Denver Intl to Dublin if you want to fly from Denver to Dublin. At least 12 different airlines have flights from Denver Intl (DEN) to Dublin (DUB) on a regular basis. There are 2 flights to Dublin from the Denver airport per day. If you manage to book one that is nonstop, then you can expect the flight time from DEN to DUB to be around 8h 45m.

  • How popular is this Denver to Dublin flight route?

    The Denver Intl to Dublin flight path was viewed by 1 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Denver to Dublin?

    For as low as $703, KLM can have you in Dublin from Denver in 13h 45m. 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 $350 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 cheapest airlines to fly from Denver to Dublin one-way?

    For one-way options, check prices for JetBlue. According to our data, you can fly for as low as $215. Users have also found prices from $308 and $313 on Delta and Icelandair, respectively.

  • 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 $901, our data shows the cheapest flight currently is $432. When looking at the most popular route, (Denver Intl - Dublin), you can expect to pay $568 for that flight.

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

    The most popular layover on flights from Denver to Dublin is Reykjavik. Denver to Dublin flights stop in London the next most.

  • 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 $68 per day.

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

    Hyde Park, Buckingham Palace, and Trafalgar Square are currently the most popular points of interest in London at the moment. Hyde Park, Buckingham Palace and Trafalgar Square are located about 12.5 mi, 13.7 mi, and 14.3 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 $37 to make sightseeing during their layover a little easier.

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

    Flights departing from Denver and landing in Dublin layover in Washington, D.C. least frequently. Chicago sees the second fewest layovers for non-direct flights flying from Denver to Dublin.

  • 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, January is the cheapest month in which you can book a flight from Denver to Dublin (average of $442). Flying from Denver to Dublin in June is currently the most expensive (average of $995). 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
Castleknock

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Alternative routes for Denver to Dublin

See prices for flight routes from nearby airports that may be better suited for you.
Denver to Shannon flights
Denver to Cork flights

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 June 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$131Average$692FlexibilityNo cancel feeOn-time62%
IcelandairCheapest$350Average$439FlexibilityNo cancel feeOn-time76%
KLMCheapest$362Average$663FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$365Average$604FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$377Average$532FlexibilityNo cancel feeOn-time67%
IberiaCheapest$387Average$654FlexibilityNo cancel feeOn-time77%
DeltaCheapest$403Average$684FlexibilityNo cancel feeOn-timeN/A
Air FranceCheapest$405Average$643FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$408Average$561FlexibilityNo cancel feeOn-time70%
Aer LingusCheapest$432Average$725FlexibilityNo cancel feeOn-timeN/A

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