DEN - DUB

$317 Find Cheap Flights from Denver to Dublin

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Denver to Dublin departing on 7/25. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Dublin

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Dublin.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Dublin.
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Everything you should know

Cheapest round-trip
$844
Typical prices: $756-$486
JetBlue
Fri 9/4Fri 9/11
DEN - DUB • 1 stop
Cheapest non-stop
$895
Aer Lingus
Wed 9/9Wed 9/16
DEN - DUB • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
Use the West Security Checkpoint at DEN for speed.
Dublin's 24-hour bus services offer scenic city views.
Expert advice
Expert advice
Expert advice
Expert advice
Nonstop flights
Mon, Wed, Fri, Sat, Sun
You can fly direct with Aer Lingus. Average duration is 8h 45m
Direct flights
Direct flights
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Direct flights
Direct flights
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Top airlines
Cheapest • from $844 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
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Airline reviews
Airline reviews
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Top layover airports
Cheapest • Avg $533 (round-trip)
Shortest trip • 11h 20m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 31% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 31% price drop
Most popular
Good to know
Good to know
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Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Dublin!
Flight Deals
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Flight Deals

Cheap Flights from Denver to Dublin (DEN-DUB)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Denver to Dublin that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Denver to Dublin

Fri, Sep 4 - Fri, Sep 11
JetBlue Logo
11:59 pm - 9:00 am
DEN
-
DUB
26h 01m
1 stop
JetBlue Logo
11:30 am - 2:18 pm
DUB
-
DEN
33h 48m
1 stop
$844JetBlue
Sun, Oct 18 - Fri, Nov 6
Air Canada Logo
7:51 am - 8:15 am
DEN
-
DUB
17h 24m
2 stops
Air Canada Logo
9:00 am - 4:38 pm
DUB
-
DEN
14h 38m
1 stop
$845Air Canada
Tue, Nov 3 - Tue, Nov 10
American Airlines Logo
5:25 pm - 2:20 pm
DEN
-
DUB
13h 55m
1 stop
American Airlines Logo
11:30 am - 7:55 pm
DUB
-
DEN
15h 25m
2 stops
$846American Airlines
Mon, Aug 17 - Wed, Sep 2
JetBlue Logo
11:59 pm - 9:00 am
DEN
-
DUB
26h 01m
1 stop
JetBlue Logo
10:40 am - 4:19 pm
DUB
-
DEN
12h 39m
1 stop
$847JetBlue
Tue, Oct 13 - Tue, Oct 20
JetBlue Logo
5:55 pm - 8:20 am
DEN
-
DUB
31h 25m
1 stop
JetBlue Logo
10:40 am - 5:00 pm
DUB
-
DEN
13h 20m
1 stop
$848JetBlue
Sun, Oct 18 - Fri, Nov 6
Air Canada Logo
7:51 am - 8:15 am
DEN
-
DUB
17h 24m
2 stops
Air Canada Logo
9:00 am - 8:27 pm
DUB
-
DEN
18h 27m
2 stops
$849Air Canada
Sun, Sep 6 - Sun, Sep 13
Air Canada Logo
11:23 am - 7:45 am
DEN
-
DUB
37h 22m
2 stops
Air Canada Logo
9:50 am - 4:58 pm
DUB
-
DEN
14h 08m
1 stop
$850Air Canada
Wed, Sep 23 - Sun, Sep 27
Aer Lingus Logo
7:30 am - 10:35 am
DEN
-
DUB
20h 05m
1 stop
Aer Lingus Logo
1:20 pm - 8:17 pm
DUB
-
DEN
13h 57m
1 stop
$851Aer Lingus
Tue, Aug 25 - Tue, Sep 1
Multiple Airlines Logo
4:40 pm - 8:45 pm
DEN
-
DUB
21h 05m
2 stops
Multiple Airlines Logo
1:00 pm - 11:20 am
DUB
-
DEN
29h 20m
1 stop
$852Multiple Airlines
Sat, Sep 5 - Wed, Sep 16
Air Canada Logo
7:16 pm - 8:15 am
DEN
-
DUB
29h 59m
2 stops
Air Canada Logo
9:20 am - 6:46 pm
DUB
-
DEN
16h 26m
2 stops
$853Air Canada
Booking Insights

KAYAK's insights & trends for Denver to Dublin flights

Get data-powered insights and trends into flights from Denver to Dublin to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Denver to Dublin?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Denver to Dublin departing in September.

What’s the cheapest day of the week to fly from Denver to Dublin?

The average price of all round-trip flights from Denver to Dublin clicked on KAYAK for each day over the last 12 months.

For Denver to Dublin, Thursday is the cheapest day to fly on average and Saturday is the most expensive. Flying from Dublin back to Denver, the best deals are generally found on Friday, with Wednesday being the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Denver to Dublin, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Denver to Dublin is January, where tickets cost $426 (return) on average. On the other hand, the most expensive months are June and December, where the average cost of round-trip tickets is $974 and $763 respectively.

Can I save money by flying with a layover from Denver to Dublin?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $945, prices are generally cheapest when you fly direct.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Denver to Dublin, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Denver to Dublin, you should book around 4 weeks before departure, which saves you about 31% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 16 weeks before departure.

Expert advice

Expert advice for your flight from Denver to Dublin

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Ramsey Qubein

Ramsey Qubein

Expert on DUB

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Harriet Baskas

Harriet Baskas

Expert on DEN

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Good to know

Low seasonJanuary
Cheapest flight$317
Best time to beat the crowds with an average 32% drop in price.
Most popular time to fly with an average 12% increase in price.
Flight from Denver to Dublin

When to book flights from Denver to Dublin

Are your dates flexible? Find out the best times to travel from Denver to Dublin based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Denver to Dublin

  • When I land at DUB and come through customs, where can I exchange my US dollars for euros?

    The International Currency Exchange or ICE counters are available for currency exchange throughout DUB. You can find an ICE kiosk in Terminal 1 near the baggage claim. You can also find one just beyond security in Terminal 2.

  • Is there somewhere at DEN where my service animal can go to the bathroom while we wait for the plane?

    DEN airport has animal relief areas in all three terminals, where both pets and service animals can go to the bathroom. For terminals A, B, and C, the pet relief areas are in the middle of all the gates, close to the US mailbox. In the Jeppesen terminal, the animal relief area is on Level 2.

  • Is there any place where I can get a massage at DEN before I catch my long flight to DUB?

    Yes. At DEN, you can loosen up your muscles before your long flight at the spa called The Massage on Concourse B, on the mezzanine level. Other spas you could try are the Colorado Oasis and XpresSpa.

  • How can I fly from DEN to DUB?

    There are no non-stop flights from DEN to DUB. Airlines such as Air Canada, Lufthansa, and United Airlines operate DEN to DUB flights with one stop. Layovers occur in cities such as Toronto (YYZ), Chicago (ORD), and London (LHR).

  • What is the cheapest flight from Denver to Dublin?

    In the last 3 days, the lowest price for a flight from Denver to Dublin was $317 for a one-way ticket and $844 for a round-trip.

  • Do I need a passport to fly between Denver and Dublin?

    Yes, you’ll need a passport to travel to Dublin from Denver.

  • Which airports will I be using when flying from Denver to Dublin?

    Denver airport is called Denver Intl and the only airport in Dublin is Dublin.

  • Which airlines offer Wi-Fi service onboard planes from Denver to Dublin?

    Iberia, United Airlines, Lufthansa, and Air France offer inflight Wi-Fi service on the Denver to Dublin flight route.

  • Which aircraft models fly most regularly from Denver to Dublin?

    The Airbus A330-200 is the aircraft model that flies most regularly on the Denver to Dublin flight route.

  • Which airline alliances offer flights from Denver to Dublin?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Denver and Dublin, with SkyTeam being the most commonly used for this route.

  • On which days can I fly direct from Denver to Dublin?

    You can catch a nonstop flight from Denver to Dublin on on Monday, Wednesday, Friday, Saturday, and Sunday.

  • Which is the best airline for flights from Denver to Dublin, Delta or KLM?

    The two airlines most popular with KAYAK users for flights from Denver to Dublin are Delta and KLM. With an average price for the route of $661 and an overall rating of 7.9, Delta is the most popular choice. KLM is also a great choice for the route, with an average price of $635 and an overall rating of 7.8.

  • How does KAYAK find such low prices on flights from Denver to Dublin?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Denver to Dublin.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Denver to Dublin?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Dublin from Denver is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Denver to Dublin?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Dublin with an airline and back to Denver with another airline. Booking your flights between Denver and DUB can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Denver to Dublin?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Dublin from Denver up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Denver to Dublin

  • Looking for a cheap flight? 25% of our users found flights on this route for $541 or less one-way and $1,020 or less round-trip.
  • To get into the city center of Dublin from Dublin Airport (DUB), you can take an Airlink Bus into the city, where you will be close to other bus stations and railway stations that can get you wherever you need to be throughout the Dublin area.
  • The USO at Denver International Airport (DEN) is located on Concourse A in the center court on Level 4. This lounge is open to active-duty, guard, or reserve military members and their families—and military retirees if there are amenities and room available. Flight boards are on display and amenities include snacks and drinks, restrooms, TV, computers, and occasional meals.
  • If you want quiet contemplation or a feeling of sanctuary when you land, DUB has a Multi-Faith Prayer Room on the Departures Level of Terminal 2. This room is intended to be welcoming to all and offensive to no one. Open 24h every day, this quiet space has prayer mats and chairs where you can settle. You must turn off your cell phone and remove your shoes when you enter this space.
  • If you are intending to meet someone at the airport in DUB, there is a place designed for passengers arriving from a foreign country to meet people picking them up. These locations are in Terminal 1, Arrivals, near the information desk, and in Terminal 2, Arrivals, near the Spar Shop.
  • DEN has one of the biggest airport therapy animal initiatives in the country. The DEN CATS (Canine Airport Therapy Squad) comprise about 80 dogs and one cat. Roaming throughout the airport with their handlers, these animals are recognizable due to their purple plaid vests that say “Pet Me.” These animals are designed to offer comfort to passengers who might be feeling stressed, anxious, sad, or confused. Passengers are encouraged to hug, pet, smooch, and take pictures with these four-legged helpers.

Prefer to fly direct from Denver to Dublin?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Denver Intl to Dublin.
Find which airlines fly direct from Denver Intl Airport to Dublin Airport, which days they fly and book direct flights.

Direct departures

Denver Intl to Dublin

Monday

Aer Lingus

Aer Lingus

Wednesday

Aer Lingus

Aer Lingus

Friday

Aer Lingus

Aer Lingus

Saturday

Aer Lingus

Aer Lingus

Sunday

Aer Lingus

Aer Lingus

See more direct flights

Direct returns

Dublin to Denver Intl

Monday

Aer Lingus

Aer Lingus

Wednesday

Aer Lingus

Aer Lingus

Friday

Aer Lingus

Aer Lingus

Saturday

Aer Lingus

Aer Lingus

Sunday

Aer Lingus

Aer Lingus

See more direct flights

Reviews of the top 5 airlines serving from Denver to Dublin

 
See real verified KAYAK customer reviews for airlines flying from Denver to Dublin. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Denver to Dublin? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9729 reviews
7.1Entertainment
7.7Boarding
6.6Food
7.3Comfort
8.1Crew
Airline reviews

O’hsre taxi and deboarding took 40 minutes. Needed 20 minutes extra time between connecting flights to avoid running through terminal.

6.0 GoodAnonymous, May 2026
DEN - ORD
Read more United Airlines reviews

O’hsre taxi and deboarding took 40 minutes. Needed 20 minutes extra time between connecting flights to avoid running through terminal.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

Really hard landing... as in slammed into the runway then hit the brakes really hard ...

Putting people that close to the bathroom, where you have to look into the bathroom as people are exiting and entering was not great and the smell was also not great. I know the airlines are desperate for more chairs, but that seat is a crime.

Every staff member was professional, friendly and courteous. The pizza twist was ok. It was warm but too much dough.

one staffer was frustrated (it happen); the flight was late and the pilot mentioned they'll make amend but the snacks were the same, other than that the aircraft was clean and everything went smooth, no complaints

Wonderful in-seat entertainment with seatback screens and huge selection of quality movies. The ability to bluetooth connect headphones was amazing.

No seat back entertainment. And app had a hard time getting entertainment loaded.

ticket agent lady wás very helpful , she arranged wheel chair for my elderly mother

Flight left on time and we arrived 25 minutes early! There was a gate available when we arrived so early on a busy Sunday afternoon! Flight attendants came around twice with the drinks cart.

Friendly flight attendants, decent food if you can eat dairy.

Very good trip. Nice clean aircraft. Helpful and friendly crew.

Other than Air Lingus not loading one piece of luggage on our flight from Dublin to Barcelona, with it arriving one day after we arrived in Barcelona, all was good.

Crew members Grainne and Karen were extremely rude and unprofessional

I am very disappointed in that KAYAK sold me this flight as a business class it was not a business class. It was a regular economy class ticket. This was not Art Linus mistake. It was kayaks.

Everything was great. I liked that one of the crew noticed my son's sunflower lanyard and asked them to let them know if we needed anything. That was lovely.

Crew was friendly and seats were comfortable. The connection however there were no free snacks or drinks.

Our flight from Dublin to Coruna did not exist any more. Apparently it was cancelled in February and I was not advised, nor was I offered any flights for rebooking. Happily Aer Lingus found another flight to another city in Spain that was 500 miles from Coruna; I had to pay for a hotel overnight and a revise my rental car that incurred additional costs, and I did not get to Coruna for another 24 hours. I was not at all impressed with Kayak or Chatdeal or Hertz.

Satin first class and absolutely no snacks are offered. Surface was awful.

This was the smoothest flight I've ever taken with any airline, including Aer Lingus. Typically, there are moments when I feel afraid, but from take off (miraculously seamless!) to cruise, to landing this was a perfect flight. Thank you!

Fine. Nothing to write home about. The plane left on time, and arrived on time.

I was downgraded from first class to coach due to an airplane change. They pulled me out of line and I was the very last person to board the plane stuck in the middle seat with no overhead place to put my carry-.on. Very poor customer service.

Seat comfort was poor (no lumbar or lower back support).

The airplane seats were spacious and comfortable, and the flight attendants were friendly and attentive. The food was delicious like never before. The blankets and toiletries were thoughtfully provided. The captain's navigation was steady and reliable. In short, having flown with Starlux, I won't consider any other airline next time.

STOP MAKING THE SEATING SO CRAMPED. WE NEED A PASSENGER BILL OF RIGHTS!

The passenger in front of of me reclined their seat back all the way the entire flight. Their headrest was in my face the entire flight! I barely had room for the little plastic cup of water to fit on my tray table; can you make the seats and space between the rows any smaller??? You can’t even get up to use the restroom! Worst flight I’ve had in a very long time!

We had several flights and they were all on-time and flawless

My Frequent Flyer nber wasn't put on as I was told it was..... This resulted in a last group boarding and no priority tags on My bags.

Premium Economy Good crew, good service, excellent food. Seat back screen just not bright enough.

Terrible steward... Plane was quite empty... I asked to move "back" in the plane and the steward said no... Unnecessary power trip of mediocre people.

At least one soda free, felt like I was nickeled to death.

On-time arrivals and departures. Crew helpful and friendly. Yet everything costs extra: seat selection, food, even airphones!

Was a bit surprised that Icelandair flies a domestically configured 757s on long-haul flights to Iceland (no lie-flat seats in business class).

I had no idea that my ticket only paid for my right to get on the plane. They charged me $130 for my carry-on bag because it was 1 inch too big she claimed but it wasn’t! Then they wanted another fee for everything. I had no idea that Icelandair had changed to such a bargain basement airline. I was very disappointed.

Screen didn't work, and neither did the button to tilt the seat even though the seat was comfortable

Second time with Saga Premium, everything was fab, but the entertainment centre on both my flights didn't work, plus the seat on the NY to Rek flight (Airbus) was so solid and so uncomfortable. The 737Max flight's seat was much, much better.

I’m considering never flying with Iceland Air again. The seats in economy are torture. Now you only get water, coffee and tea for free- really? No food, not a single peanut. The passport line was insane, everyone was worried about catching their connecting flight. This was the third time I’ve barely made my connection, had to run. It can’t be that my choice is to use the bathroom (during the 50 minutes between flights) or make my flight. SO stressful! Ugh.

Waiting area on top of stairs before Boarding the bus wasn’t great. Took a long time to load the bus to gate.

Iceland Air severely damaged a checked bag. Additionally, the gate agent caused issues for many passengers who had standard-sized onboard bags that would have passed inspection by any other airline.

The staff was kind and helpful. There was no food, and you needed to bring your own earphones to use the entertainment, which I didn’t know.

All the above categories was great. Seats entirely too cramped.

Flight was good but temp in the cabin was cold.

Departure was delayed leading to late arrival, 25 min wait for a gate. Basically, missed all our connections & had to be rebooted, which was a very long process.

I like American Airlines and their safety record. They provide quality service and a feel safe enough to prefer American Airlines over other carriers even if I have to pay a little more.

Good flight, no turbulence. I felt safe and comfortable which is really important when I am just a passenger.

Cancelled flight and re booked seats were a downgrade. British Airways said the upgrade was t available but when I checked it was but then they wouldn’t make it right

Someone switched seats in business class so they could sit together and we were left apart (3). Very disappointing. Staff did nothing

Somone switched seats to sit near friend causing us to be disconnected (3) business class. Very disappointed. Staff did nothing.

Boarding was orderly, pilot and flight attendants were nice, entertainment options were good, and low sodium meals were quite tasty.

The whole experience was excellent, O can say out from Miami the best airline to travel with for any European destination. Since the ground staff to the inflight crew attention was great, service on board 10 of 10. Finally the 380 is very confortable and nice to travel.

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

Information on your arrival and departure airports