HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Dublin

$254+ 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 3/24. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — DUB
Mar 13 — Mar 201
Fri 3/13
Fri 3/20
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 42 days in advance, depart on a Monday or Wednesday 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 February 11, 2026.

This Mytrip deal was found by Cheapflights users on 2/9. 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 3/95:20 pm
DEN
-
DUB
2 stops16h 30m
Multiple Airlines
Mon 3/169:05 pm
DUB
-
DEN
2 stops24h 30m
Multiple Airlines
Deal found 2/9$561
This KAYAK deal was found by Cheapflights users on 2/8. 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.
Tue 8/2510:30 am
DEN
-
DUB
1 stop14h 50m
JetBlue
Mon 8/3111:40 am
DUB
-
DEN
1 stop18h 15m
JetBlue
Deal found 2/8$589
This Mytrip deal was found by Cheapflights users on 2/8. 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.
Thu 2/263:40 pm
DEN
-
DUB
2 stops24h 10m
Multiple Airlines
Mon 3/26:55 am
DUB
-
DEN
2 stops18h 10m
Multiple Airlines
Deal found 2/8$590
This Mytrip deal was found by Cheapflights users on 2/7. 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.
Tue 2/243:40 pm
DEN
-
DUB
2 stops20h 25m
Multiple Airlines
Wed 3/48:20 am
DUB
-
DEN
2 stops16h 45m
Multiple Airlines
Deal found 2/7$594
This KAYAK deal was found by Cheapflights users on 2/10. 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 4/2711:08 pm
DEN
-
DUB
1 stop26h 12m
JetBlue
Mon 5/410:40 am
DUB
-
DEN
1 stop18h 33m
JetBlue
Deal found 2/10$597
This Priceline deal was found by Cheapflights users on 2/9. 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.
Fri 5/111:08 pm
DEN
-
DUB
1 stop26h 12m
JetBlue
Sat 5/910:40 am
DUB
-
DEN
1 stop18h 33m
JetBlue
Deal found 2/9$598
This CheapOair deal was found by Cheapflights users on 2/10. 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.
Fri 5/111:08 pm
DEN
-
DUB
1 stop26h 12m
JetBlue
Sun 5/1010:40 am
DUB
-
DEN
1 stop18h 33m
JetBlue
Deal found 2/10$599
This FlightHub deal was found by Cheapflights users on 2/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1912:59 pm
DEN
-
DUB
2 stops39h 51m
Scandinavian Airlines
Fri 8/2812:40 pm
DUB
-
DEN
2 stops42h 05m
Scandinavian Airlines
Deal found 2/10$602
This Gotogate deal was found by Cheapflights users on 2/8. 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 2/263:40 pm
DEN
-
DUB
1 stop11h 35m
Icelandair
Thu 3/511:30 am
DUB
-
DEN
1 stop13h 35m
Icelandair
Deal found 2/8$604

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 February 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$561
(Mytrip)

One-way from

$254
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$466

Good round-trip deal

$621 or less

Good one-way deal

$431 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. 23% potential increase in price ($188 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 February 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 February 11, 2026.
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 2/25

7:24 pm-8:10 am

1 stop29h 46m

Dublin

Wed 3/4

9:00 am-10:23 am

1 stop32h 23m

$655

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Wed 4/8

8:52 pm-9:45 am

1 stop29h 53m

Dublin

Tue 4/14

9:50 am-10:18 am

1 stop31h 28m

$661

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Mon 4/6

7:17 pm-9:45 am

1 stop31h 28m

Dublin

Tue 4/14

9:50 am-10:18 am

1 stop31h 28m

$661

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Sun 3/29

7:20 pm-9:45 am

1 stop31h 25m

Dublin

Tue 4/7

9:50 am-10:18 am

1 stop31h 28m

$661

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Wed 4/29

3:55 pm-10:40 am

1 stop11h 45m

Dublin

Sat 5/9

9:20 am-7:27 pm

1 stop17h 07m

$664

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Wed 4/29

3:55 pm-10:40 am

1 stop11h 45m

Dublin

Fri 5/8

9:50 am-6:12 pm

1 stop15h 22m

$664

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Sun 5/3

7:50 am-10:40 am

1 stop19h 50m

Dublin

Wed 5/13

9:50 am-5:00 pm

1 stop14h 10m

$664

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Wed 2/25

5:25 pm-5:00 pm

1 stop16h 35m

Dublin

Wed 3/4

8:50 am-3:30 pm

1 stop13h 40m

$666

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Wed 2/25

5:25 pm-5:00 pm

1 stop16h 35m

Dublin

Tue 3/3

8:50 am-3:30 pm

1 stop13h 40m

$666

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Wed 2/25

5:25 pm-7:55 am

1 stop31h 30m

Dublin

Mon 3/2

3:10 pm-3:30 pm

1 stop31h 20m

$666

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/10

Showing 1-10 of 19 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 February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 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 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?

Use this chart to determine the optimal time to book a round-trip flight from Denver to Dublin. Price data was last updated on February 6, 2026.

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, January is the cheapest month in which you can book a flight from Denver to Dublin (average of $346). Flying from Denver to Dublin in June is currently the most expensive (average of $659). 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.

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 February 11, 2026.
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.
United Airlines
7.4
Good
9,274 reviews

Food

6.6

Overall

7.4

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,274 reviews
United Airlines
7.4
Good
9,274 reviews

Food

6.6

Overall

7.4

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
American Airlines
7.2
Good
11,265 reviews
United Airlines
7.4
Good
9,274 reviews

Food

6.6

Overall

7.4

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Aer Lingus
7.2
Good
1,449 reviews
United Airlines
7.4
Good
9,274 reviews

Food

6.6

Overall

7.4

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Air Canada
7.1
Good
10,708 reviews
United Airlines
7.4
Good
9,274 reviews

Food

6.6

Overall

7.4

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Icelandair
7.1
Good
611 reviews
United Airlines
7.4
Good
9,274 reviews

Food

6.6

Overall

7.4

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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?

    The Denver Intl to Dublin flight path was viewed by 2 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 $655, United Airlines can have you in Dublin from Denver in 29h 46m. Denver and Dublin are separated by a distance of 4378 mi.

  • 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 $356 and $362 round-trip. JetBlue is 78% 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 $234 and $288 on WestJet and Icelandair, respectively.

  • What are the cheapest flights from Denver to Dublin?

    While on average a flight from Denver to Dublin is generally $643, our data shows the cheapest flight currently is $317. When looking at the most popular route, (Denver Intl - Dublin), you can expect to pay $563 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 $54 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 $33 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 $346). Flying from Denver to Dublin in June is currently the most expensive (average of $659). 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
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 February 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$131Average$655FlexibilityNo cancel feeOn-time62%
IcelandairCheapest$356Average$470FlexibilityNo cancel feeOn-time76%
KLMCheapest$362Average$663FlexibilityNo cancel feeOn-time75%
Air CanadaCheapest$383Average$582FlexibilityNo cancel feeOn-time67%
IberiaCheapest$387Average$567FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$387Average$628FlexibilityNo cancel feeOn-time69%
DeltaCheapest$391Average$589FlexibilityNo cancel feeOn-timeN/A
Air FranceCheapest$405Average$645FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$409Average$555FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$428Average$641FlexibilityNo cancel feeOn-time76%

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.