HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Dublin

$304+ 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 6/6. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — DUB
May 3 — May 101
Sat 5/3
Sat 5/10
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Denver to Dublin with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Denver Intl to Dublin are usually found in January or February, booked 65 days in advance, depart on a Wednesday or Monday and return on a Thursday

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 April 28, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$627
(JetBlue)

One-way from

$304
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$575

Good round-trip deal

$733 or less

Good one-way deal

$498 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. 27% potential increase in price ($232 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($36 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
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

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 April 28, 2025.

This Air Canada deal was found by Cheapflights users on 4/28. 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 10/227:52 amDEN - DUB
2 stops17h 23mAir Canada
Wed 11/59:00 amDUB - DEN
2 stops18h 05mAir Canada
Deal found 4/28$576
This JetBlue deal was found by Cheapflights users on 4/27. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/711:30 amDEN - DUB
1 stop13h 50mJetBlue
Tue 10/1411:30 amDUB - DEN
1 stop18h 29mJetBlue
Deal found 4/27$582
This Air Canada deal was found by Cheapflights users on 4/28. 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 8/137:50 amDEN - DUB
2 stops16h 55mMultiple Airlines
Wed 8/209:50 amDUB - DEN
2 stops15h 28mMultiple Airlines
Deal found 4/28$583
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Wed 10/296:30 amDEN - DUB
1 stop21h 35mUnited Airlines
Wed 11/59:00 amDUB - DEN
2 stops17h 01mUnited Airlines
Deal found 4/28$584
This American Airlines deal was found by Cheapflights users on 4/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/286:30 pmDEN - DUB
1 stop16h 30mAmerican Airlines
Tue 11/411:30 amDUB - DEN
2 stops17h 39mAmerican Airlines
Deal found 4/28$586
This StudentUniverse deal was found by Cheapflights users on 4/28. 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 StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2812:55 pmDEN - DUB
1 stop12h 20mFinnair
Tue 11/46:05 pmDUB - DEN
2 stops30h 37mFinnair
Deal found 4/28$587
This oojo deal was found by Cheapflights users on 4/28. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/244:40 pmDEN - DUB
1 stop13h 35mIcelandair
Mon 11/311:30 amDUB - DEN
1 stop13h 35mIcelandair
Deal found 4/28$589
This Delta deal was found by Cheapflights users on 4/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2611:00 amDEN - DUB
2 stops16h 20mDelta
Wed 11/510:45 amDUB - DEN
1 stop14h 37mDelta
Deal found 4/28$593
This British Airways deal was found by Cheapflights users on 4/28. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/182:04 pmDEN - DUB
2 stops14h 46mBritish Airways
Mon 8/258:55 pmDUB - DEN
1 stop26h 30mBritish Airways
Deal found 4/28$597
This Lufthansa deal was found by Cheapflights users on 4/28. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/277:00 pmDEN - DUB
2 stops15h 40mLufthansa
Tue 11/48:30 amDUB - DEN
1 stop14h 25mLufthansa
Deal found 4/28$618
This Bravofly deal was found by Cheapflights users on 4/28. 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 Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/57:55 pmDEN - DUB
Nonstop8h 45mAer Lingus
Sun 5/183:25 pmDUB - DEN
Nonstop9h 34mAer Lingus
Deal found 4/28$641
This Air France deal was found by Cheapflights users on 4/28. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2410:50 amDEN - DUB
1 stop14h 05mAir France
Tue 11/49:45 amDUB - DEN
2 stops16h 25mAir France
Deal found 4/28$643

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 April 28, 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

Wed 10/22

7:52 am-8:15 am

2 stops17h 23m

Dublin

Wed 11/5

9:00 am-8:05 pm

2 stops18h 05m

$576

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Tue 10/7

11:30 am-8:20 am

1 stop13h 50m

Dublin

Tue 10/14

11:30 am-10:59 pm

1 stop18h 29m

$582

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Wed 8/13

7:50 am-7:45 am

2 stops16h 55m

Dublin

Wed 8/20

9:50 am-6:18 pm

2 stops15h 28m

$583

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Fri 10/24

4:40 pm-1:15 pm

1 stop13h 35m

Dublin

Mon 11/3

11:30 am-6:05 pm

1 stop13h 35m

$589

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Wed 10/22

12:00 pm-9:15 am

2 stops14h 15m

Dublin

Thu 11/6

9:45 am-8:00 pm

1 stop17h 15m

$593

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Mon 8/18

2:04 pm-11:50 am

2 stops14h 46m

Dublin

Mon 8/25

8:55 pm-4:25 pm

1 stop26h 30m

$597

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Mon 8/18

7:55 pm-11:40 am

Nonstop8h 45m

Dublin

Mon 8/25

3:25 pm-5:59 pm

Nonstop9h 34m

$618

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Sat 10/25

5:40 pm-11:05 am

2 stops34h 25m

Dublin

Sun 11/2

9:00 am-10:28 am

1 stop32h 28m

$622

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Tue 10/21

4:40 pm-10:15 pm

2 stops22h 35m

Dublin

Mon 11/3

5:25 pm-3:55 pm

1 stop29h 30m

$637

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Fri 10/24

10:50 am-7:55 am

1 stop14h 05m

Dublin

Tue 11/4

9:45 am-7:10 pm

2 stops16h 25m

$643

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/27

Showing 1-10 of 24 results
1
2
3

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 April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
Justfly.comPrice Accuracy3 starsTrust Score*2 stars

*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 AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Denver-Dublin flight deals on Cheapflights vs. AranGrant >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 AranGrant the most. AranGrant 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 April 25, 2025.

Booking 65 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, November is the cheapest month in which you can book a flight from Denver to Dublin (average of $509). Flying from Denver to Dublin in June is currently the most expensive (average of $1,006). 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 April 28, 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 39% 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.

Rainfall in Dublin by month

Plan your trip to Dublin by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Dublin ranges from 1.9 - 3.1 inches per month. October is typically the wettest month, when rainfall can reach 3.1 in. February is typically the driest time to visit Dublin when rainfall is around 1.9 in.

Temperature in Dublin by month

Plan your trip to Dublin by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Dublin, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 60.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 41.0 F).

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 April 28, 2025.
Read through reviews of airlines operating flights from Denver to Dublin, such as Delta, SWISS and United Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,929 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,929 reviews
Delta
8.0
Very good
7,929 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
SWISS
7.5
Good
1,587 reviews
Delta
8.0
Very good
7,929 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,696 reviews
Delta
8.0
Very good
7,929 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
JetBlue
7.3
Good
2,922 reviews
Delta
8.0
Very good
7,929 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Scandinavian Airlines
7.3
Good
1,346 reviews
Delta
8.0
Very good
7,929 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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 is 1 flight 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 8 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • 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 $627 on this airline. Additional options worth looking into are Aer Lingus and Air Canada, starting at $641 and $652 round-trip.

  • What are the cheapest airlines to fly from Denver to Dublin one-way?

    For one-way options, check prices for WestJet. According to our data, you can fly for as low as $384. Users have also found prices from $447 and $493 on Aer Lingus and JetBlue, respectively.

  • What are the cheapest flights from Denver to Dublin?

    While on average a flight from Denver to Dublin is generally $2,673, our data shows the cheapest flight currently is $426. When looking at the most popular route, (Denver Intl - Dublin), you can expect to pay $496 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. London is followed by Chicago in terms of the most popular layover location for Denver to Dublin flights.

  • 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 $47 per day.

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

    Hyde Park, Piccadilly Circus, and Buckingham Palace are currently the most popular points of interest in London at the moment. Hyde Park, Piccadilly Circus and Buckingham Palace are located about 12.5 mi, 14.1 mi, and 13.7 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 $53 to make sightseeing during their layover a little easier.

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

    Most Chicago visitors opt to spend their time at Magnificent Mile, Grant Park, and River North. Magnificent Mile, Grant Park, and River North are located about 15.5 mi, 16.2 mi, and 15.0 mi, respectively from Chicago O'Hare Intl. Those landing in Chicago looking to spend some time exploring during their layover can rent a car for about $55 per day.

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

    Flights departing from Denver and landing in Dublin layover in Philadelphia least frequently. Toronto sees the second fewest layovers for non-direct flights flying from Denver to Dublin. Dallas sees the third fewest flights with layovers for the Denver to Dublin route.

  • 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, November is the cheapest month in which you can book a flight from Denver to Dublin (average of $509). Flying from Denver to Dublin in June is currently the most expensive (average of $1,006). 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 Denver?

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 April 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$344Average$498FlexibilityNo cancel feeOn-time76%
Air FranceCheapest$416Average$554FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$435Average$554FlexibilityNo cancel feeOn-time70%
Air CanadaCheapest$445Average$565FlexibilityNo cancel feeOn-time67%
DeltaCheapest$455Average$594FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$459Average$609FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$469Average$655FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$475Average$649FlexibilityNo cancel feeOn-time76%
IberiaCheapest$483Average$621FlexibilityNo cancel feeOn-time77%
Aer LingusCheapest$504Average$712FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.