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$295 Cheap Flights from Denver (DEN) to Dublin (DUB)

View $295 flight on Mon, Mar 15, 2027Opens in a new window

Popular airlines from Denver Intl. Airport (DEN) to Dublin Airport (DUB)

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Cheap Flights from Denver to Dublin (DEN-DUB)

Prices were available within the past 7 days and start at $295 for one-way flights and $612 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Icelandair
Wed, Mar 10 - Wed, Mar 24
DEN
Denver
DUB
Dublin
$612 Roundtrip, found 3 hours ago
$612
Roundtrip
found 3 hours ago
Select Icelandair flight, departing Wed, Mar 10 from Denver to Dublin, returning Wed, Mar 24, priced at $612 found 3 hours ago
Icelandair
Tue, Oct 6 - Sun, Oct 11
DEN
Denver
DUB
Dublin
$617 Roundtrip, found 2 days ago
$617
Roundtrip
found 2 days ago
Select Icelandair flight, departing Tue, Oct 6 from Denver to Dublin, returning Sun, Oct 11, priced at $617 found 2 days ago
Icelandair
Wed, Oct 14 - Wed, Oct 21
DEN
Denver
DUB
Dublin
$617 Roundtrip, found 4 hours ago
$617
Roundtrip
found 4 hours ago
Select Icelandair flight, departing Wed, Oct 14 from Denver to Dublin, returning Wed, Oct 21, priced at $617 found 4 hours ago
Icelandair
Tue, Mar 30 - Tue, Apr 6
DEN
Denver
DUB
Dublin
$619 Roundtrip, found 1 hour ago
$619
Roundtrip
found 1 hour ago
Select Icelandair flight, departing Tue, Mar 30 from Denver to Dublin, returning Tue, Apr 6, priced at $619 found 1 hour ago
Icelandair
Tue, Mar 30 - Mon, Apr 5
DEN
Denver
DUB
Dublin
$620 Roundtrip, found 1 day ago
$620
Roundtrip
found 1 day ago
Select Icelandair flight, departing Tue, Mar 30 from Denver to Dublin, returning Mon, Apr 5, priced at $620 found 1 day ago
Air Canada
Mon, Aug 17 - Fri, Aug 21
DEN
Denver
DUB
Dublin
$688 Roundtrip, found 6 hours ago
$688
Roundtrip
found 6 hours ago
Select Air Canada flight, departing Mon, Aug 17 from Denver to Dublin, returning Fri, Aug 21, priced at $688 found 6 hours ago
United
Mon, Aug 17 - Fri, Aug 21
DEN
Denver
DUB
Dublin
$689 Roundtrip, found 6 hours ago
$689
Roundtrip
found 6 hours ago
Select United flight, departing Mon, Aug 17 from Denver to Dublin, returning Fri, Aug 21, priced at $689 found 6 hours ago
Aer Lingus
Wed, Aug 19 - Fri, Aug 28
DEN
Denver
DUB
Dublin
$696 Roundtrip, found 2 days ago
$696
Roundtrip
found 2 days ago
Select Aer Lingus flight, departing Wed, Aug 19 from Denver to Dublin, returning Fri, Aug 28, priced at $696 found 2 days ago
Lufthansa
Tue, Aug 25 - Tue, Sep 1
DEN
Denver
DUB
Dublin
$698 Roundtrip, found 19 hours ago
$698
Roundtrip
found 19 hours ago
Select Lufthansa flight, departing Tue, Aug 25 from Denver to Dublin, returning Tue, Sep 1, priced at $698 found 19 hours ago
JetBlue Airways
Sun, Sep 6 - Thu, Sep 10
DEN
Denver
DUB
Dublin
$745 Roundtrip, found 5 days ago
$745
Roundtrip
found 5 days ago
Select JetBlue Airways flight, departing Sun, Sep 6 from Denver to Dublin, returning Thu, Sep 10, priced at $745 found 5 days ago

Alternative airports near Dublin

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Dublin Airport DUB. Cheapest and Closest option available. Average driving time to city center is 14 minutes. Flights from $738
DUB
Dublin Airport
CheapestClosest
Average driving time to city center14 min
Flights from $738

What you need to know for your flight from Denver Intl. to Dublin

Denver (DEN) to Dublin (DUB) at a glance

Traveling from Denver (DEN) to Dublin (DUB) offers a range of options with various airlines catering to your needs. Whether you prefer full-service flights or more economical low-cost carriers, you can easily compare choices to find the itinerary that aligns with your budget and schedule. Explore Dublin’s iconic attractions and vibrant neighborhoods with convenient flights from Denver International Airport (DEN) to Dublin Airport (DUB).

  • Fastest flight duration: around 8h 45m non-stop
  • Route distance: roughly 4,400 miles (7,080 km)
  • Flights per week: around 13 departures on average
  • Typical fares (one-way): economy tickets often range from $190–$655, depending on seasonality and how far ahead you book

Flights from Denver International Airport (DEN) to Dublin Airport (DUB)

Based on recent traveler bookings, here are the top airlines favored for flights from Denver to Dublin, featuring both non-stop and one-stop options. Popular layover choices include Keflavik International Airport, KEF (approximately 1 hour and 30 minutes), Washington Dulles International Airport, IAD (around 2 hours), and Heathrow Airport, LHR (about 3 hours). These options allow you to tailor your journey by balancing price, total travel time, and cabin class to discover the best itinerary for your needs.

  • United: As a comprehensive service airline, United provides one-stop options, with one-way fares generally falling within $190–$570. This carrier represents about 25% of the departures on this route, featuring a flight duration of 10 hours and 15 minutes, and a total travel time of approximately 12 hours and 30 minutes, including layovers.
  • Aer Lingus: This full-service airline offers both non-stop and one-stop flights, with typical one-way fares ranging from $210 to $585. Aer Lingus accounts for roughly 21% of the departures on this route, boasting a standard non-stop travel time of about 8 hours and 45 minutes.
  • American Airlines: A versatile full-service option, American Airlines provides non-stop, one-stop, and multi-stop services, with one-way fares typically priced between $245 and $770. This airline covers around 16% of the departures on this route, featuring a standard non-stop journey duration of 8 hours and 45 minutes.
  • Icelandair: Known for its one-stop service, Icelandair offers one-way fares that typically range from $190 to $1345. This airline accounts for about 13% of departures on this route, with an in-flight time of 10 hours and 15 minutes and a total travel duration of approximately 12 hours and 30 minutes, including layovers.
  • Air Canada: A full-service option, Air Canada provides both one-stop and multi-stop services, with one-way fares usually ranging from $225 to $560. This airline represents around 8% of the departures on this route, typically featuring a 1-stop journey with an in-flight time of 10 hours and 15 minutes and a total travel time of about 12 hours and 30 minutes.

Travelers flying from Denver to Dublin can enhance their experience by upgrading to business class, available through Icelandair and Aer Lingus for this route.

Best time to fly from Denver (DEN) to Dublin (DUB)

The most popular months for travelers flying from Denver to Dublin are March, May, and August, when peak temperatures in Dublin reach up to 58.6°F in August. If you prefer quieter travel, consider January, the least busy and relatively cheaper time to visit with fewer crowds and temperatures around 41.9°F. For better deals, November usually offers the lowest average one-way fare around $282. Flight availability peaks in March, with approximately 18 flights per week, making it easier to find convenient departure times.

  • Cheapest time to fly: November usually offers good deals with average one-way fare around $282, roughly 26% cheaper than the yearly average.
  • Another budget-friendly time to fly: January typically offers an average one-way fare of around $298.
  • Most flight options: March has the highest number of flights from Denver to Dublin, with approximately 18 flights per week, giving you more flexibility in scheduling your trip.
calendar iconMonthtemperature iconTemperaturecrowd level iconDemandflights iconWeekly Flightsprice iconAverage one-way Fare
January41.9°F (5.5°C)Low9$298
February42.6°F (5.9°C)Low9$311
March43.9°F (6.6°C)High18$401
April46.8°F (8.2°C)Average11$352
May51.4°F (10.8°C)High17$409
June56.3°F (13.5°C)Average14$561
July59.2°F (15.1°C)Average14$448
August58.6°F (14.8°C)High13$390
September55.9°F (13.3°C)Average15$330
October52.3°F (11.3°C)Average15$368
November46.8°F (8.2°C)Average11$282
December43.5°F (6.4°C)Low10$439

*Average one-way fare is based on Expedia flight booking data from January 2025 to April 2026 for the specified route and travel class and may change depending on availability, dates, and demand.

Alternative route from Denver (DEN) to Dublin (DUB)

  • Colorado Springs to Dublin (COS-DUB): Colorado Springs Airport (COS) is located roughly 73 miles from Denver International Airport (DEN). One-way economy tickets for this route generally fall between $245 and $810, influenced by seasonal demand and advance booking. Travelers can choose from both one-stop and multi-stop flights, frequently connecting through O'Hare International Airport (ORD) and Dallas-Fort Worth International Airport (DFW). The leading airlines serving this route include United and American Airlines, with business class also offered for those seeking a more premium experience.

How to find the best prices for flights from Denver (DEN) to Dublin (DUB)

Getting some of the best deals on flights from Denver to Dublin is all about timing and flexibility. Here are some key tips to help you save:

  1. Best times to book and fly: cheaper fares are usually available when booking at least two months in advance, which coincides with when most travelers make their reservations. Afternoon departures from 12 PM to 6 PM often offer lower prices, while evening flights from 6 PM to 12 AM are the most popular. Additionally, flying on Tuesday typically results in cheaper fares, although Friday remains the busiest travel day.
  2. Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
  3. Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.*
  4. Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
  5. Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
  6. Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.

*Members only. Savings vary and are not available on all bundles. Select hotels.

Arriving at Dublin Airport from Denver International Airport

Dublin welcomes travelers from Denver with a range of transport options based on price, convenience, and proximity. Dublin city center is approximately a 15-minute drive (covering about 8 miles) from Dublin Airport, depending on traffic. Here's how to reach Dublin efficiently:

  • Hotel transfer: Transfers offer a convenient way to reach your hotel in Dublin, with private rides that can be arranged in advance.
  • Car rental: Renting a car from Dublin Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Dublin Airport on Expedia.
  • Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
  • Public transportation: From Dublin Airport, several important transport options are conveniently located nearby. Dublin Howth Junction Station, a train station, is about 4.9 miles from the airport by car, while Phibsborough Tram Stop, a metro station, is around 6.2 miles away by car. Additionally, 3Arena Seaport, a seaport, is situated approximately 6.7 miles from the airport by car.

Frequently asked questions

How much does a flight from Denver, CO (DEN-Denver Intl.) to Dublin (DUB) cost?
You can find cheap one-way flights from $295 and cheap return flights from $612 Denver, CO (DEN-Denver Intl.) to Dublin (DUB) with Expedia. One-way flights typically cost between $430 and $4479, and return flights often range between $543 and $5813. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Denver, CO (DEN-Denver Intl.) to Dublin (DUB) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Denver, CO (DEN-Denver Intl.) to Dublin (DUB)?
The cheapest month to fly from DEN to DUB is March when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Denver, CO (DEN-Denver Intl.) to Dublin (DUB)?
You can fly direct from DEN to DUB on Aer Lingus, with around 7 flights per week.
What is the cheapest airline that flies from Denver, CO (DEN-Denver Intl.) to Dublin (DUB)?
Iberia is one of the cheapest airlines offering nonstop flights from Denver, CO (DEN-Denver Intl.) to Dublin (DUB), with round-trip tickets starting from around $454. This direct option makes it easy for you to start your adventure in Ireland. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Denver, CO (DEN-Denver Intl.) to Dublin (DUB)?
To find a cheap flight from Denver, CO (DEN-Denver Intl.) to Dublin (DUB), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Denver, CO (DEN-Denver Intl.) to Dublin (DUB)?
The best airline to fly with from Denver, CO (DEN) to Dublin (DUB) will differ from traveler to traveler. If you like to fly early, Aer Lingus offers early morning flights. If price is the most important factor, Aer Lingus typically offers the lowest fares. Delta offers the most daily flights from DEN to DUB, which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Denver, CO (DEN-Denver Intl.) to Dublin (DUB)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Denver, CO (DEN-Denver Intl.) to Dublin (DUB)?
You can find approximately 1 nonstop flights per day from Denver Intl. (DEN) to (DUB). For more options, look at flights that include layovers.
What is the earliest flight from Denver, CO (DEN-Denver Intl.) to Dublin (DUB)?
Sort flights by "Departure (earliest)" on Expedia to find the earliest flight from DEN to DUB. To compare more early flights, use the "Early Morning" and "Morning" filters in your search.
How long does it take to fly from Denver, CO (DEN-Denver Intl.) to Dublin (DUB)?
A nonstop flight from DEN to DUB typically takes around 8 hours 50 minutes, covering approximately 4,382 miles. Connecting flights on this route usually add 3 hours to your travel time. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Denver, CO (DEN-Denver Intl.) to Dublin (DUB)?
You can fly business class between DEN and DUB. Airlines that offer business class service on this route include:

  • Air Canada
  • United Airlines
  • Lufthansa
  • American Airlines
  • British Airways
  • Icelandair
  • Delta Air Lines
  • Aer Lingus
  • Edelweiss Air
  • Turkish Airlines

First class is available with United Airlines and Lufthansa.
How much is a business class flight from Denver, CO (DEN-Denver Intl.) to Dublin (DUB)?
A direct, return business class ticket from Denver (DEN) to Dublin (DUB) typically costs between $5,802 - $10,849. A non-stop, one-way business class flight is usually around $4,829 - $9,420. Prices often fluctuate based on seasonality and how early you book. You may also be able to find a cheaper business class journey between Denver, CO (DEN-Denver Intl.) to Dublin (DUB) if you opt for a connecting flight.*Prices based on flights available on Expedia in the last year.
How do I earn miles on a Denver, CO (DEN-Denver Intl.) to Dublin (DUB) flight with Expedia?
It's easy to earn miles on a Denver, CO (DEN-Denver Intl.) to Dublin (DUB) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
Is it cheaper to buy a plane ticket from Denver, CO (DEN-Denver Intl.) to Dublin (DUB) at the last minute?
Typically, booking a last minute flight from Denver, CO (DEN-Denver Intl.) to Dublin (DUB) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Denver, CO (DEN-Denver Intl.) to Dublin (DUB) flight and hotel package?
Securing a Denver, CO (DEN-Denver Intl.) to Dublin (DUB) Dublin Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Denver, CO (DEN-Denver Intl.) to Dublin (DUB)?
If you booked your Denver, CO (DEN-Denver Intl.) to Dublin (DUB) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Denver Intl.
Destination airport
Dublin
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, British Airways, Brussels Airlines, Delta, Finnair, Iberia, Icelandair, JetBlue Airways, KLM, Lufthansa, Turkish Airlines, United, WestJet
Roundtrip price
$612
Distance
4381 mi
Average flight time
8 hours 45 mins

Book with confidence

Denver to Dublin Flights

The cheapest times to fly from Denver to Dublin

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Denver to Dublin are during the month of March. You can find some of the cheapest flights from Denver to Dublin with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Denver to Dublin

Sunday is one of the best days to book for cheap flights from Denver to Dublin: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Denver to Dublin

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Denver to Dublin in 2026. You can also book with separate airlines for your outbound and return journeys, from $295 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Denver to Dublin flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Denver to Dublin airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Denver to Dublin Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

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