Ireland

$276+ Cheap flights from Denver (DEN) to Ireland

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 5/4. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — DUB
May 11 — May 181
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Cheap flight deals from Denver to Ireland

Cheapest flights from Denver to Ireland
Explore the most affordable flight options available from Denver to Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 11, 2026.

This FlightHub deal was found by Cheapflights users on 4/7. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/312:59 pm
DEN
-
DUB
2 stops39h 46m
Scandinavian Airlines
Thu 11/127:05 pm
DUB
-
DEN
2 stops34h 55m
Scandinavian Airlines
Deal found 4/7$703
This FlightHub deal was found by Cheapflights users on 4/10. 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.
Fri 8/2112:00 pm
DEN
-
DUB
2 stops38h 25m
Scandinavian Airlines
Sat 8/2910:15 am
DUB
-
DEN
2 stops19h 43m
Scandinavian Airlines
Deal found 4/10$708
This Air France deal was found by Cheapflights users on 4/6. 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.
Wed 8/2612:20 pm
DEN
-
SNN
1 stop15h 50m
Multiple Airlines
Wed 9/21:05 pm
SNN
-
DEN
1 stop16h 44m
Multiple Airlines
Deal found 4/6$708
This KLM deal was found by Cheapflights users on 4/6. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/511:59 pm
DEN
-
SNN
1 stop28h 11m
KLM
Wed 9/161:05 pm
SNN
-
DEN
1 stop16h 44m
KLM
Deal found 4/6$713
This Delta deal was found by Cheapflights users on 4/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/511:59 pm
DEN
-
SNN
1 stop28h 11m
Delta
Wed 9/161:05 pm
SNN
-
DEN
1 stop16h 44m
Delta
Deal found 4/10$714
This KLM deal was found by Cheapflights users on 4/6. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2012:20 pm
DEN
-
SNN
1 stop15h 50m
KLM
Tue 9/81:05 pm
SNN
-
DEN
1 stop16h 44m
KLM
Deal found 4/6$718
This United Airlines deal was found by Cheapflights users on 4/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/202:05 pm
DEN
-
SNN
1 stop13h 10m
United Airlines
Tue 5/512:30 pm
SNN
-
DEN
2 stops19h 14m
United Airlines
Deal found 4/10$720
This Delta deal was found by Cheapflights users on 4/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/209:35 am
DEN
-
SNN
2 stops18h 35m
Delta
Tue 9/81:05 pm
SNN
-
DEN
2 stops26h 36m
Delta
Deal found 4/9$723
This oojo deal was found by Cheapflights users on 4/9. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/33:40 pm
DEN
-
DUB
1 stop11h 35m
Icelandair
Thu 11/1211:30 am
DUB
-
DEN
1 stop13h 35m
Icelandair
Deal found 4/9$724
This United Airlines deal was found by Cheapflights users on 4/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/172:00 pm
DEN
-
SNN
1 stop13h 15m
United Airlines
Mon 4/2012:30 pm
SNN
-
DEN
1 stop12h 40m
United Airlines
Deal found 4/10$728
This KAYAK deal was found by Cheapflights users on 4/8. 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 11/312:59 pm
DEN
-
DUB
2 stops39h 46m
Scandinavian Airlines
Tue 11/1012:30 pm
DUB
-
DEN
2 stops40h 47m
Scandinavian Airlines
Deal found 4/8$737
This FlightHub deal was found by Cheapflights users on 4/9. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/711:23 am
DEN
-
DUB
2 stops37h 22m
Air Canada
Tue 7/149:50 am
DUB
-
DEN
1 stop31h 43m
Air Canada
Deal found 4/9$738

Find flight deals from Denver to Ireland

Keep the following information in mind while searching for Denver to Ireland flight deals. Data was last updated April 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$708
(FlightHub)

One-way from

$276
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$643

Good round-trip deal

$850 or less

Good one-way deal

$433 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 Ireland
One-way flight from Denver Intl to Ireland
Highest demand for flights based on searches. 21% potential increase in price ($170 potential increase over avg. RT price).
Cheapest flight prices on average. 5% potential price decrease ($33 potential savings vs. average RT price).
Average for round-trip flights in April 2026
Price to beat on a round-trip flight from Denver Intl to Ireland.
Price to beat on a one-way flight from Denver Intl to Ireland.

Cheapflights Fare Finder

 
Customize your flight search to find flights from Denver to Ireland 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 11, 2026.
Use the filters below to find and compare flights from Denver to Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverShannon

DEN - SNN

DENSNN

Denver Intl

Sat 9/5

11:59 pm-11:10 am

1 stop28h 11m

Shannon

Wed 9/16

1:05 pm-10:49 pm

1 stop16h 44m

$713

DenverShannon

DEN - SNN

DENSNN

Denver Intl

Sat 9/5

10:45 am-11:10 am

2 stops17h 25m

Shannon

Wed 9/16

1:05 pm-5:31 pm

2 stops35h 26m

$723

DenverShannon

DEN - SNN

DENSNN

Denver Intl

Tue 9/29

3:35 pm-10:15 am

1 stop11h 40m

Shannon

Wed 10/7

12:30 pm-7:34 pm

1 stop14h 04m

$748

DenverShannon

DEN - SNN

DENSNN

Denver Intl

Mon 10/5

1:28 pm-10:15 am

2 stops13h 47m

Shannon

Wed 10/14

12:30 pm-7:34 pm

1 stop14h 04m

$753

DenverShannon

DEN - SNN

DENSNN

Denver Intl

Sat 9/12

8:25 pm-7:30 am

2 stops28h 05m

Shannon

Fri 9/25

12:30 pm-9:18 pm

1 stop15h 48m

$753
Quickest round-trip

DenverShannon

DEN - SNN

DENSNN

Denver Intl

Sun 5/10

3:35 pm-10:15 am

1 stop11h 40m

Shannon

Mon 5/18

12:30 pm-7:07 pm

1 stop13h 37m

$798

DenverShannon

DEN - SNN

DENSNN

Denver Intl

Sun 8/2

7:09 pm-11:10 am

2 stops33h 01m

Shannon

Sun 8/9

1:05 pm-10:45 pm

1 stop16h 40m

$802

DenverDublin

DEN - DUB

DENDUB

Denver Intl

Wed 9/9

6:40 pm-7:30 pm

1 stop17h 50m

Dublin

Wed 9/16

6:00 pm-5:38 pm

2 stops30h 38m

$806

DenverShannon

DEN - SNN

DENSNN

Denver Intl

Fri 8/7

7:40 am-7:30 am

1 stop16h 50m

Shannon

Sun 8/16

9:30 am-2:26 pm

1 stop11h 56m

$808

DenverShannon

DEN - SNN

DENSNN

Denver Intl

Sun 8/16

6:00 am-7:30 am

1 stop18h 30m

Shannon

Wed 8/19

9:30 am-2:26 pm

1 stop11h 56m

$835

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/6

Showing 1-10 of 46 resultsSorted by cheapest first
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Best time to book a flight from Denver to Ireland

Have a flexible travel schedule? Discover the best time to fly to Ireland 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 Ireland

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

Currently, January is the cheapest month in which you can book a flight from Denver to Ireland (average of $346). Flying from Denver to Ireland in June is currently the most expensive (average of $636). 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.

Reviews of airlines servicing Ireland

Get insights into the airlines that provide service to Ireland. 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 Ireland. Reviews last updated April 11, 2026.
Read through reviews of airlines operating flights from Denver to Ireland, such as United Airlines,Aer Lingus, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Comfort

7.3

Crew

8.1

Boarding

7.7

Overall

7.4

Entertainment

7.1

Food

6.6

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

Comfort

7.3

Crew

8.1

Boarding

7.7

Overall

7.4

Entertainment

7.1

Food

6.6

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

Comfort

7.3

Crew

8.1

Boarding

7.7

Overall

7.4

Entertainment

7.1

Food

6.6

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

Comfort

7.3

Crew

8.1

Boarding

7.7

Overall

7.4

Entertainment

7.1

Food

6.6

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

Comfort

7.3

Crew

8.1

Boarding

7.7

Overall

7.4

Entertainment

7.1

Food

6.6

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

Comfort

7.3

Crew

8.1

Boarding

7.7

Overall

7.4

Entertainment

7.1

Food

6.6

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 Ireland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly from for flights from Denver to Ireland?

    Denver Intl (DEN) is the airport you will fly out of if you book a flight from Denver to Ireland. It is only a 18.5 mi journey to Denver Intl (DEN) from Denver’s city center.

  • How popular is this Denver to Ireland flight route?

  • How long is the flight from Denver to Ireland?

    Airlines like KLM, United Airlines, and Delta fly from Denver to Ireland in about 11h 40m. The time it takes to get you to your destination can typically vary by up to 16h 31m. The distance from Denver to Ireland is about 4309 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Denver to Ireland 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 popular routes from Denver to Ireland?

  • What are the cheapest flights from Denver to Ireland?

    Looking at all options, your cheapest flight can be booked for $317. While the most popular route (Denver Intl - Dublin) can be booked for $708 on average, our data indicates $795 when flying from Denver to Ireland.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Denver to Ireland 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 Ireland?

    Currently, January is the cheapest month in which you can book a flight from Denver to Ireland (average of $346). Flying from Denver to Ireland in June is currently the most expensive (average of $636). 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

Browse thousands of different options on Cheapflights for your next trip

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Top 10 airlines flying from Denver to Ireland

Discover the top 10 airlines that operate flights from Denver to Ireland. 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 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$131Average$692FlexibilityNo cancel feeOn-time62%
IcelandairCheapest$350Average$445FlexibilityNo cancel feeOn-time76%
SWISSCheapest$356Average$458FlexibilityNo cancel feeOn-time79%
KLMCheapest$362Average$663FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$374Average$707FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$377Average$563FlexibilityNo cancel feeOn-time67%
IberiaCheapest$387Average$583FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$402Average$587FlexibilityNo cancel feeOn-time70%
DeltaCheapest$403Average$671FlexibilityNo cancel feeOn-timeN/A
Air FranceCheapest$405Average$645FlexibilityNo cancel feeOn-time77%

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