$288 Find Cheap Flights from Denver to Ireland

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 Ireland departing on 12/8. 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

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Cheap Flights from Denver to Ireland

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Dublin
Dublin1 stop$464
Shannon
Shannon1 stop$480
Cork
Cork1 stop$446
Dublin
Dublin1 stop$464
Shannon
Shannon1 stop$480
Cork
Cork1 stop$446

Book Cheap Denver to Ireland Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Denver to Ireland 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 Ireland

Sun, Mar 1 - Tue, Mar 31
American Airlines Logo
5:25 pm - 3:25 pmDEN-ORK
15h 00m1 stop
American Airlines Logo
7:20 am - 4:35 pmORK-DEN
16h 15m1 stop
$446American Airlines
Find Deal
Sun, Mar 1 - Tue, Mar 31
American Airlines Logo
5:25 pm - 3:25 pmDEN-ORK
15h 00m1 stop
American Airlines Logo
7:20 am - 9:04 pmORK-DEN
20h 44m2 stops
$456American Airlines
Find Deal
Fri, Feb 27 - Fri, Mar 6
Multiple Airlines Logo
5:25 pm - 2:20 pmDEN-DUB
13h 55m1 stop
Multiple Airlines Logo
8:50 am - 3:30 pmDUB-DEN
13h 40m1 stop
$464Multiple Airlines
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Sun, Apr 26 - Wed, May 6
Air Canada Logo
11:05 am - 8:15 amDEN-DUB
38h 10m2 stops
Air Canada Logo
9:20 am - 8:50 amDUB-DEN
30h 30m2 stops
$468Air Canada
Find Deal
Mon, Mar 9 - Wed, Mar 18
Air Canada Logo
5:30 pm - 6:10 amDEN-DUB
30h 40m1 stop
Air Canada Logo
8:00 am - 7:55 pmDUB-DEN
17h 55m2 stops
$470Air Canada
Find Deal
Sat, Mar 7 - Tue, Mar 17
United Airlines Logo
5:30 pm - 6:10 amDEN-DUB
29h 40m1 stop
United Airlines Logo
9:30 am - 4:35 pmDUB-DEN
13h 05m1 stop
$485United Airlines
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Fri, Nov 28 - Mon, Dec 8
Icelandair Logo
3:40 pm - 10:15 amDEN-DUB
11h 35m1 stop
Icelandair Logo
11:30 am - 6:05 pmDUB-DEN
13h 35m1 stop
$498Icelandair
Find Deal
Thu, Nov 27 - Mon, Dec 8
Icelandair Logo
3:40 pm - 10:15 amDEN-DUB
11h 35m1 stop
Icelandair Logo
11:30 am - 6:05 pmDUB-DEN
13h 35m1 stop
$515Icelandair
Find Deal
Wed, Apr 22 - Sat, May 2
United Airlines Logo
4:00 pm - 11:10 amDEN-DUB
12h 10m1 stop
United Airlines Logo
9:20 am - 5:10 pmDUB-DEN
14h 50m1 stop
$516United Airlines
Find Deal
Sat, Mar 21 - Sat, Mar 28
Aer Lingus Logo
7:25 am - 7:25 pmDEN-SNN
30h 00m2 stops
Aer Lingus Logo
5:25 pm - 4:35 pmSNN-DEN
29h 10m1 stop
$837Aer Lingus
Find Deal
Booking Insights

KAYAK's insights & trends for Denver to Ireland flights

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

What is the cheapest Denver to Ireland flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Ireland from Denver found in the last 72 hours was to Dublin, at $523 round-trip. The most popular route is from Denver (DEN) to Dublin (DUB), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $523.

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

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 $633, prices are generally cheapest when you fly direct.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Denver to Ireland, 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 Ireland is November, when tickets cost $482 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of round-trip tickets is $970 and $785 respectively.

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

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

When flying from Denver to Ireland, you should consider leaving on a Wednesday and avoid Tuesdays if you are looking for the best rates. For your return to Denver, you’ll find the best rates on Fridays and the most expensive ones on Mondays.

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

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 Ireland, 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 Ireland, you should book around 3 weeks before departure, which saves you about 18% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 4 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$288
Best time to beat the crowds with an average 19% drop in price.
Most popular time to fly with an average 3% increase in price.
Flight from Denver to Dublin

FAQs - booking Ireland flights

  • Is it necessary to have a visa to fly from Denver to Ireland?

    As a U.S. citizen traveling to Ireland, you are not required to get a tourist visa before leaving the United States. However, you may be asked to show proof of an exit date out of Ireland. Make sure you have a valid passport with you as well.

  • Are there direct flights from Denver to Ireland?

    Currently, there aren’t any available direct flights making the route from Denver to Ireland. Nonetheless, there are flights with just one layover in between. Most of these routes are operated by United Airlines and make a stop in Newark Liberty International Airport (EWR) in New York, before crossing the Atlantic Ocean.

  • What is the best way to get to the Ring of Kerry?

    The Ring of Kerry is a scenic route drive around the Iveragh Peninsula in southwest Ireland. The best way to enjoy the Ring of Kerry is by car. Travelers coming from Denver can fly into Shannon Airport (SNN) where they can rent a vehicle from one of the available agencies. The Ring of Kerry is just a few hours away through the striking Irish countryside.

  • Is there public transportation to get to Limerick from the airport?

    The airport serving the area of Limerick in southwest Ireland is the second largest hub in the country—Shannon Airport (SNN). The airport has a couple of national bus services that operate outside its doors. This is most likely the cheapest option to get around. The 343 route of Bus Éireann arrives in Limerick in about half an hour. Passengers can expect to pay more or less €10 ($11).

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

    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 Ireland.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Denver to Ireland 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 Ireland?

    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 from Denver to Ireland with an airline and back with another airline.

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

    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 from Denver to Ireland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Ireland?

    The cheapest time of day to fly to Ireland is generally in the evening, when round-trip flights cost $548 on average. Morning departures are around 19% more expensive than evening flights, on average. The most expensive time of day to fly to Ireland is generally at night, which is peak travel time and where the average cost of a ticket is $859.

Top tips for finding cheap flights to Ireland

  • When you’re booking flights from Denver to Ireland, the best airport to fly into with the most route options is Dublin Airport (DUB). This is the country’s main hub, and it is located near some top attractions like the Dublin Castle and the Guinness Storehouse. It is also a short distance from the Dublin city center.
  • As you’re prepping for your trip from Denver to Ireland, remember to have USD to exchange into the local Euro (EUR) currency. The main airports, such as Dublin Airport (DUB) and Shannon Airport (SNN), have currency exchange kiosks at their arrival terminals.
  • Denver International Airport (DEN) offers a few services ideal for passengers that get stressed before long flights like the one from Denver to Ireland. Before boarding their flight, passengers can get a massage or go to the spa to relax.
  • Child car seats are mandatory for children under 150 cm (4ft 11in) or 36kg (79lb). This is important to know if you’re planning on traveling with infants and renting a vehicle in Ireland. You can check with your car rental company to find out if they can provide child seats so you don’t have to bring your own.
  • If you’re traveling with a pet or service animal from Denver to Ireland, Denver International Airport (DEN) has various pet relief spots. These are available for your four-legged friends to do their business before flying.

Reviews of the top 5 airlines serving from Denver to Ireland

 
Need help choosing which airline to fly with from Denver to Ireland? 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 8999 reviews
8.1Crew
7.1Entertainment
6.6Food
7.7Boarding
7.3Comfort
Airline reviews

Great smooth flight. Had a seating change, but that was an improvement. Thanks United Airways Crew.

10.0 ExcellentBen, Oct 2025DEN - PVR
Read more United Airlines reviews

Great smooth flight. Had a seating change, but that was an improvement. Thanks United Airways Crew.

Flight was good but there are way to many announcements for credit cards etc.

Crew seemed a bit cranky. No seatback screens. But boarding was efficient and on time and we arrived early.

See previous note about the passenger in Denver who threw my husband's bag out of the overhead bin in order to maker room for his own. And the flight attendant back up the new passenger.

Terrible. They wouldn't allow me on my flight on the 14th..

Impressed with the service despite turbulence because of the weather. Both flights arrived before their scheduled times.

Great experience…left a bit behind schedule but made up fir that in the air and landed 10 minutes early 😁

The seat and leg room was not good. The food and beverage service was good.

For economy, it was very good. Staff was great, they even let some of us change seats for more leg room... Put an empty seat between us which was fantastic for a 12hr flight. Onboard entertainment was excellent, I think over 200 choices of movies/tv/etc The bad was the barely/nonfunctional wifi that cost either $16.99 or 1700 miles (full flight). It was atrocious... Definitely the worst of the last 3 long haul major airlines I was on the last few months.

Electric plugs didn't work. Entertainment system wasn't working

The flight attendant, a black woman with curly hair who sat near Row 21, was wonderful and kind.

It was good..clean, comfy seat. Friendly warm welcoming crew. Was able to check my cabin luggage at the gate which I was able to pickup in a decent time from baggage claim. The app gave all updates from delays to baggage claim info. Overall smooth flight.

Flight was delayed leaving Dallas. Arrived about 2 hours later than scheduled.

Flight delayed and missed connection. Rescheduled flight cancelled after 6 hrs wait. Rerouted thru ORD, flight cancelled, overnight stay in ORD. Still in the air on new flight!

We are too tired and frustrated to comment politely at this point

Terrible. Our luggage was delayed and couldn’t be delivered for several days. We got bad information from the airline agents at baggage claim. We had to pick up our car so we wouldn’t be charged for an extra day. We got lost in the maze of airport parking. The baggage claim agents didn’t offer us any compensation for our extra time and expense. We are tired, hungry and very frustrated.

The flight was flawless and we even arrived between 20 and 25 minutes early!

The only thing to like was that we eventually got to our destination

Delayed delayed delayed and no offer for food or vouchers

Disliked having to wait a little longer to disembark from the plan when we landed in London

Staff was generally friendly and helpful. Attendants collecting trash were somewhat inattentive though.

This flight left about 45 minutes late, and arrived about 45 minutes late, which was enough to make us miss our next flight and trap us in Dublin for 24 hours!!

I think the extra charges for seating with no added advantage and the added charges for baggage are excessive compared to other airlines.

I had zero issues with the flight. I did have issues with the staff at the airport. We missed out flight due to a delay with another airline. Talking to the staff and trying to get a new flight arranged was challenging. One guy was able to try to help us and got us on a new flight, but other staff was dismissive and clearly let us know it wasn’t their problem. All I kept thinking was… this is why air lingus has such a poor customer service reputation. I will be avoiding this airline in the future.

Food was just okay. Was surprised initially when was charged for a cup of tea when they first came through cabin for beverages. I’ve had far better long distance flights ( take some tips from Swiss airlines)

The boarding process was not good. From check-in, there was only one desk for check-in, which made for a very long line. I asked to print out my boarding pass for the next leg of my trip, also via Aer Lingus, and they said they couldn't. I was unable to do this on the app or online, either. Many fellow passengers I spoke to had the same issue. Because the plane was delayed taking off by 90 minutes, everyone had to quickly go to a desk for their next boarding pass which was chaos. Overall it wasn't a smooth or happy experience.

UNDERPRISER IS A CRIMINAL ORGANIZATION. I WILL NEVER LET THEM MANAGE ANOTHER TRIP. THEY ESSENTIALLY WERE TRYING TO EXTORT ME FOR "Permission" FROM THEM not TO USE MY ROME TO DUBLIN FLIGHT. I did not use this flight, and despite many communications with both Aer Lingus and Underpricers, to the end, they insisted I could not do this, while Aer Lingus kept telling me there was no problem. And in fact, I had zero problems catching that second leg of the trip home from Dublin to LAX.. As if harrassment, underpricers sent me a rude and insensitve email insisting Aer Lingus would not honor the flight home to LAX from DUB. ON THE MORNING OF THE TRAVEL!!! KAYAK SHOULD NOT USE UNDERPRICER "services" They are dishonest and sadistic.

We left 2 1/2 hours late. It wasn't the airlines fault but they did nothing to help the situation. Even water had a price tag. The next flight was better.

They specifically asked about my flight from bordeaux to Dublin, which was fine. A little lacking but for a 1 and a half hour flight - it was more than enough. I transferred at Dublin and went to Newark. And wow that flight was incredible.

I liked that I went thru customs in Dublin instead of having to do that in LA.

All attendents were very efficient, pleasant and happy. Everything went smoothly. The seats could have been wider. There could have been more free food instead of just one small bar.

My seat was one of those that couldn't recline, but the problem was that it was abnormally upright, so the headrest actually made the seat concave, which was uncomfortable and hard on my lower back. I had to ball my jacket up and use it as lumbar support. goodness I had it with me.

Boarding was so so after zone 3 was called all other zones went in

I liked a lot , the flight attendant so nice ,the seat very comfortable I enjoyed the flight , I will do it again with Air Canada,

Plane left an hour late, I missed my connection and my bow case was never even loaded on the plane in VA. I deal with this type of nonsense everytime I fly air canada.

For goodness sake, board from the back of the plane to the front and assign overhead space. It would fix everything. Seriously.

Elderly female flight attendant was not customer friendly. There were only about 12 people on a regional jet that had about 60 seats. There were 8 exit row seats and none of them were taken. We attempted to sit in those seats and the flight attendant gave the standard " you didn't pay for those" so she would not allow us to move. What harm would that have caused ? They assigned seats to 5 of the 12 people in 2 rows, row 20 and 21. A simple friendly customer experience gesture of allowing us to sit in exit rows would have gone a long way in me having a very favorable impression on Air Canada. After that I have very poor impression of Air Canada and will not fly with them when I can avoid it.

It was a smooth flight both in the sky and landing!

Pearson Airport could not properly handle all the passengers who they needed to process in order to properly get them on board. As a result, I missed the departure of my flight from Toronto. The only saving grace is that Air Canada found a flight that only delayed me by one hour. However, this was no thanks to Pearson Airport!

Almost everything it was a “cool” ambiance but we arrived to Toronto so that it’s ok for me

The boarding process seem to take longer than necessary, resulting in a 20+ minute delay

It was too cold in the plane my feet froze

Service was excellent. Food and drinks were very good except for a greasy lump of a donut at the end of the flight that left us both feeling internally disgusted.

Handling our luggage was the biggest issue - they lost it and we got it almost 3 days later. Really threw off the beginning of our trip and we really had to change our itinerary accordingly.

Seat was hard and uncomfortable and the temperature too warm and uncomfortable.

No meals included on this long international flight. Most airlines will offer you a meal when flying internationally. Not Icelandair. Your included choices are water and coffee. Poor customer service. The airport was also very confusing.

I flew Icelandair with my partner from Prague to the US. Overall flight time was around 12 hours, with a connecting flight in Iceland. I have flown internationally for years and with multiple airlines. Every airline serves you a meal when traveling internationally. Icelandair not only did not offer an inclusive meal, but they did not even offer a snack. The only things they served over our long flight was water and coffee. Ridiculous! Never again will I fly with Icelandair.

Best smelling onboard bathrooms ever. Even after use the whole flight. Biggest overhead bins. Most legroom in economy class. Great Icelandiic music. Really nice staff. Icelandair is awesome! (Don’t fly Air Canada! During the strike they lied about no flights available (I booked this flight myself) and hid the process to get money back on their website by obscuring menu titles, then made it difficult and time consuming to fill out. I’m Canadian. Don’t trust Air Canada!

It was good. The air plane is clean and staff were friendly.

Worst airline I’ve ever flown. Delayed 5.5 hrs, missed connecting flight, and missed an entire day of vacation. Zero customer service

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

Information on your arrival and departure airports

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