€247 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 8/12. 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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Best Ireland Flight Deals from Denver

Cheapest return prices found by our users on KAYAK in the last 72 hours
Dublin
Dublin1 stop€398
Cork
Cork1 stop€383
Shannon
Shannon1 stop€412
Dublin
Dublin1 stop€398
Cork
Cork1 stop€383
Shannon
Shannon1 stop€412

Cheap Flights from Denver to Ireland

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return 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 return flight deals from Denver to Ireland

Sun, 1 Mar - Tue, 31 Mar
American Airlines Logo
17:25 - 15:25DEN-ORK
15h 00m1 stop
American Airlines Logo
07:20 - 16:35ORK-DEN
16h 15m1 stop
€383American Airlines
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Sun, 1 Mar - Tue, 31 Mar
American Airlines Logo
17:25 - 15:25DEN-ORK
15h 00m1 stop
American Airlines Logo
07:20 - 21:04ORK-DEN
20h 44m2 stops
€391American Airlines
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Fri, 27 Feb - Fri, 6 Mar
Multiple Airlines Logo
17:25 - 14:20DEN-DUB
13h 55m1 stop
Multiple Airlines Logo
08:50 - 15:30DUB-DEN
13h 40m1 stop
€398Multiple Airlines
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Sun, 26 Apr - Fri, 8 May
Air Canada Logo
07:45 - 08:15DEN-DUB
17h 30m1 stop
Air Canada Logo
09:20 - 08:50DUB-DEN
30h 30m2 stops
€401Air Canada
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Wed, 14 Jan - Fri, 23 Jan
British Airways Logo
17:25 - 14:05DEN-DUB
13h 40m1 stop
British Airways Logo
08:50 - 15:30DUB-DEN
13h 40m1 stop
€402British Airways
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Mon, 9 Mar - Mon, 16 Mar
Multiple Airlines Logo
11:21 - 06:10DEN-DUB
36h 49m2 stops
Multiple Airlines Logo
18:35 - 23:21DUB-DEN
34h 46m2 stops
€403Multiple Airlines
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Mon, 9 Mar - Tue, 17 Mar
Lufthansa Logo
17:20 - 17:10DEN-DUB
17h 50m1 stop
Lufthansa Logo
05:00 - 17:00DUB-DEN
18h 00m1 stop
€404Lufthansa
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Mon, 6 Apr - Wed, 15 Apr
Air Canada Logo
11:35 - 08:15DEN-DUB
13h 40m1 stop
Air Canada Logo
09:50 - 19:55DUB-DEN
17h 05m2 stops
€407Air Canada
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Thu, 15 Jan - Mon, 19 Jan
British Airways Logo
17:25 - 14:50DEN-DUB
14h 25m1 stop
British Airways Logo
17:55 - 15:30DUB-DEN
28h 35m1 stop
€438British Airways
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Sat, 21 Mar - Sat, 28 Mar
Aer Lingus Logo
07:25 - 19:25DEN-SNN
30h 00m2 stops
Aer Lingus Logo
17:25 - 16:35SNN-DEN
29h 10m1 stop
€718Aer Lingus
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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 €469 return. 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 €469.

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

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of €469, 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 €413 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of return tickets is €832 and €673 respectively.

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 a 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€247
Best time to beat the crowds (19% less expensive on average)
Most popular time to fly (3% more expensive on average)
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 travellers 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 return 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 retur flights cost €581 on average. Morning departures are around 100% cheaper 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 €676.

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 airline flying 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.
7.2
Aer LingusOverall score based on 1361 reviews
8.0Crew
6.9Entertainment
7.1Comfort
6.6Food
7.4Boarding
Airline reviews

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

8.0 ExcellentDaniel, Oct 2025BER - DUB
Read more Aer Lingus reviews

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.

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

Information on your arrival and departure airports

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