$252 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 3/24. 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$417
Shannon
Shannon2 stops$509
Cork
Cork1 stop$535
Dublin
Dublin1 stop$417
Shannon
Shannon2 stops$509
Cork
Cork1 stop$535

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

Mon, Apr 27 - Thu, May 7
Icelandair Logo
4:40 pm - 1:15 pm
DEN
-
DUB
13h 35m
1 stop
Icelandair Logo
2:15 pm - 7:00 pm
DUB
-
DEN
11h 45m
1 stop
$417Icelandair
Mon, Apr 27 - Thu, May 7
Icelandair Logo
4:40 pm - 1:15 pm
DEN
-
DUB
13h 35m
1 stop
Icelandair Logo
2:15 pm - 7:00 pm
DUB
-
DEN
11h 45m
1 stop
$418Icelandair
Thu, Apr 16 - Wed, Apr 29
Icelandair Logo
4:40 pm - 11:05 am
DEN
-
DUB
11h 25m
1 stop
Icelandair Logo
12:15 pm - 7:00 pm
DUB
-
DEN
13h 45m
1 stop
$423Icelandair
Tue, Apr 14 - Mon, Apr 27
United Airlines Logo
5:38 pm - 10:15 am
DEN
-
SNN
33h 37m
2 stops
United Airlines Logo
12:30 pm - 6:10 pm
SNN
-
DEN
12h 40m
1 stop
$509United Airlines
Mon, May 4 - Wed, May 13
Lufthansa Logo
5:40 pm - 4:20 pm
DEN
-
ORK
15h 40m
1 stop
Lufthansa Logo
5:05 pm - 3:40 pm
ORK
-
DEN
29h 35m
1 stop
$535Lufthansa
Sun, May 10 - Wed, May 20
United Airlines Logo
5:29 pm - 10:15 am
DEN
-
SNN
33h 46m
2 stops
United Airlines Logo
12:30 pm - 11:37 pm
SNN
-
DEN
18h 07m
2 stops
$538United Airlines
Sun, Apr 12 - Thu, Apr 30
Lufthansa Logo
4:05 pm - 4:30 pm
DEN
-
ORK
17h 25m
2 stops
Lufthansa Logo
5:05 pm - 11:30 pm
ORK
-
DEN
37h 25m
2 stops
$538Lufthansa
Sun, Mar 1 - Tue, Mar 31
Multiple Airlines Logo
8:05 am - 3:25 pm
DEN
-
ORK
24h 20m
2 stops
Multiple Airlines Logo
4:55 pm - 3:40 pm
ORK
-
DEN
29h 45m
1 stop
$627Multiple Airlines
Wed, Feb 18 - Sun, Feb 22
British Airways Logo
5:25 pm - 8:00 pm
DEN
-
CFN
19h 35m
2 stops
British Airways Logo
10:00 am - 3:30 pm
CFN
-
DEN
36h 30m
2 stops
$988British Airways
Wed, Feb 18 - Sun, Feb 22
British Airways Logo
5:25 pm - 8:00 pm
DEN
-
CFN
43h 35m
2 stops
British Airways Logo
1:00 pm - 3:30 pm
CFN
-
DEN
33h 30m
2 stops
$989British Airways
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 $484 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 $484.

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 $485 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of round-trip tickets is $983 and $764 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 Monday 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 15% 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$252
Best time to beat the crowds with an average 23% drop in price.
Most popular time to fly with an average 18% 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 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 $825.

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 9236 reviews
7.7Boarding
8.1Crew
7.3Comfort
7.1Entertainment
6.6Food
Airline reviews

Sitting on the runway after we land for almost two hours! Not sure if we should blame United or Just Dumpy Vance.

2.0 MediocreSid, Dec 2025
DEN - BZN
Read more United Airlines reviews

Sitting on the runway after we land for almost two hours! Not sure if we should blame United or Just Dumpy Vance.

Flight was late - I was downgraded from first class to coach

United overall experience is great these days. Airport experience was very organized. Staff on flight were great. App and information as good as it gets.

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 screens were inoperable for movies and such, but everything else was just fine

For a 5 1/2 hour flite i considered the "business class" to be subpar. The seats were just ok, no amenities, really nothing more than a long domestic flight. Frankly disappointed.

Delayed an hour due to operational issues. Minimal apologies or care for the significant inconvenience caused. Landed at nearly 1am and they still couldn’t find ground staff to get us off the plane promptly.

This was one of the most frustrating travel experiences I've had to date. I had changed my flight day of to this one as it was slated to depart on time. It ended up being so delayed that my original flight took off before this one did. The boarding process began but eventually stopped and everyone had to get off the plane as a problem was identified. The person at the front desk just tried to laugh it off as if this wasn't already a huge inconvenience. From there, we eventually got to board only to sit at the gate for an additional hour because of some additional issue. This was extremely frustrating and caused a lot of stress.

Update to handle the delay was very bad, crews no smiles or welcome or thanks. Don’t care attitude

It would be nice to have some low carb options in the snacks.

I was trying to take 2 one and a half hour one way trips and I experienced almost 20 delays over the course of those two trips. Only a few of them were due to weather the rest was disorganization

No gates avail at DFW so our incoming had to wait 30 mins for a plane to push back because they Had mechanical. We boarded 90 mins delayed and then we had a mechanical. Come on American…do better. Also at my seat the tray table had not been cleaned. Floor had not been cleaned. But captain and flight Att were very picture and apologetic.

Crew was helpful and cheerful especially when they had no refreshments to work with. The plane was never serviced and had nothing but limited water and coffee onboard. For the price point, a concern of services.

Flight was smooth, quick and felt safe. The 2 delays not happening would have been better but I guess that happens in the airline industry

One of the best flight experience I have had in along time. Would fly with them again.

Like getting a bus. No great luxury but will get you there

Got us to destination alive, albeit a bit late. Luggage was left behind. No live tracking app available (available on some other airlines). Supposedly going to be delivered in next couple of days.

The trip was mostly nice, till the last moment when they had some issue with opening the flight door. The flight arrived late by 10 minutes, which was ok-ish, but then we got stuck on the plane for 35 minutes at the bridge and that costed our connection flight to LAX which left with 12+ passengers still on our flight. It added 2 days to our trip home, and we had to make lots of rearrangements to deal with the ripple effects. Don't book a 1+ stop trip with a layover time less than 2 hours.

My seat was broken. No sound available and the armrest between my wife and I was broken so it could only fold halfway up. Seats were a big close together so they felt a bit claustrophobic. Boarding was a little frustrating in Dublin as there is not sufficient room to actually queue up. Boarding was also frustrating for people behind me who were unable to use the overhead due to people abusing the privilege and putting more than one item each up there. Staff was friendly and helpful to those people.

The staff was amazing, so friendly and responsive. Check in was tedious as the online service was not available and the desk understaffed. It took a full hour in line to check in. The seats, in economy, where quite spacious until the people in front of us reclined their seats which then meant the seat was touching our knees. The inconsiderate people who were seated in a bulkhead kept their seats reclined for 80% of the flight and then got annoyed when we bumped their seats while shifting positions. It was highly unpleasant..

The connection time between the regional flight (from Newcastle) to an international flight (to The States) was too short. To require as second security scan and customs clearance within an hour and 20 mins is not enough time to make the actual connection. We had a final boarding call the minute we walked out of US customs and had to sprint (with two small children) through 20 gates to make it in time before the door closed. The concept is great in theory to clear customs before leaving Europe, but the timing needs to be adjusted. We travel abroad frequently and won’t be using this route again. Thanks.

Canceled my flight couple hours before takeoff. They could not find a decent re-routing and refused to pay for when i subjected alternative with Lufthansa.

Seats a little to soft on the SFO DUB flight

I was not admitted to the flight!!! I need a refund for this

Overall satisfied and would fly with them again. They could improve the check-in efficiency at BOS, we got backed up because it seemed there were passengers requiring much more time for check in.

Delays at check-in, seemed like they were short ground staff at the time and some passengers needed extra processing.

Problems checking in both on the laptop and on the app. No free seating available at check-in as advertised - must pay for EVERY seat between $23 and $75. No way to cancel seat choice. App menus and site menus are not responsive, and some items are impossible to find. Crew and mobile assistance are friendly and helpful.

Food - Non-Existent. You pay for everything. It is strictly Pay-to-Play!

Again, we paid $ 328.00 for specific seats are were assigned those seats.

They had a 4 hour delay and left my luggage in Iceland and it didn’t arrive in Portland until 11/1

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

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.

Really appreciated the care, attention and friendliness of cabin crew. Very comfortable, prompt and efficient flight.

The issue was not with BA it was with the link yoiu sent fopr booking the flight

Loved the boarding option from Business class lounge, experience on flight was excellent, plenty of good food choices

Getting the boarding passes between the BA and AA apps was very clunky.

The airline was not clear about a new departure time so we got to the airport early anyway. The flight left early which was great because of weather. The check in process was very easy and staff were friendly and helpful. The crew was great and our flight was very good.

Awful it always is unfortunately is the only way to fly direct to london

I travelled in business class and was disappointed by lack of service, curt and borderline rude time of the crew and to top it off, all of my luggage was delayed. It was like pulling teeth to even report the missing luggage and recover it the next day from the airport.

Plane was extremely delayed, but not all of it was BA fault (some was). Worst part was lack of room - this had as much space as an Allegiant flight. I thought transatlantic usually gave you an extra inch or two, but not this one. Entertainment system sporadically worked and didn’t have great options. Overhead bins are old and tiny, not as good as aunties new planes.

Boarding was poor. All groups called immediately one after the other resulting in a long queue in the jetty/jet bridge. Seats were very hard and and did not recline on a 4.5 hour flight. No food was available. Plane was cold. There was no entertainment.

People were nice. Seats are so cramped my knees had to be pressed into the seat in front of me.

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

Information on your arrival and departure airports