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£278 Cheap Flights from Dublin (DUB) to Denver (DEN)

View £278 flight on Thu, 27 Aug 2026Opens in a new window

Popular airlines from Dublin Airport (DUB) to Denver International Airport (DEN)

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

Prices were available within the past 7 days and start at £278 for one-way flights and £515 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

JetBlue Airways
Wed, 26 Aug - Sun, 30 Aug
DUB
Dublin
DEN
Denver
£515 Return, found 7 hours ago
£515
Return
found 7 hours ago
Select JetBlue Airways flight, departing Wed, 26 Aug from Dublin to Denver, returning Sun, 30 Aug, priced at £515 found 7 hours ago
JetBlue Airways
Wed, 26 Aug - Sat, 5 Sept
DUB
Dublin
DEN
Denver
£516 Return, found 1 day ago
£516
Return
found 1 day ago
Select JetBlue Airways flight, departing Wed, 26 Aug from Dublin to Denver, returning Sat, 5 Sept, priced at £516 found 1 day ago
JetBlue Airways
Sat, 29 Aug - Sat, 5 Sept
DUB
Dublin
DEN
Denver
£518 Return, found 3 days ago
£518
Return
found 3 days ago
Select JetBlue Airways flight, departing Sat, 29 Aug from Dublin to Denver, returning Sat, 5 Sept, priced at £518 found 3 days ago
JetBlue Airways
Tue, 25 Aug - Sat, 5 Sept
DUB
Dublin
DEN
Denver
£533 Return, found 1 day ago
£533
Return
found 1 day ago
Select JetBlue Airways flight, departing Tue, 25 Aug from Dublin to Denver, returning Sat, 5 Sept, priced at £533 found 1 day ago
JetBlue Airways
Sat, 29 Aug - Sat, 5 Sept
DUB
Dublin
DEN
Denver
£535 Return, found 3 days ago
£535
Return
found 3 days ago
Select JetBlue Airways flight, departing Sat, 29 Aug from Dublin to Denver, returning Sat, 5 Sept, priced at £535 found 3 days ago
Icelandair
Wed, 14 Apr - Wed, 21 Apr
DUB
Dublin
DEN
Denver
£543 Return, just found
£543
Return
just found
Select Icelandair flight, departing Wed, 14 Apr from Dublin to Denver, returning Wed, 21 Apr, priced at £543 just found
Finnair
Fri, 28 Aug - Fri, 11 Sept
DUB
Dublin
DEN
Denver
£557 Return, found 1 day ago
£557
Return
found 1 day ago
Select Finnair flight, departing Fri, 28 Aug from Dublin to Denver, returning Fri, 11 Sept, priced at £557 found 1 day ago
Aer Lingus
Sat, 29 Aug - Fri, 11 Sept
DUB
Dublin
DEN
Denver
£561 Return, found 1 day ago
£561
Return
found 1 day ago
Select Aer Lingus flight, departing Sat, 29 Aug from Dublin to Denver, returning Fri, 11 Sept, priced at £561 found 1 day ago
Iberia
Wed, 14 Apr - Wed, 21 Apr
DUB
Dublin
DEN
Denver
£565 Return, just found
£565
Return
just found
Select Iberia flight, departing Wed, 14 Apr from Dublin to Denver, returning Wed, 21 Apr, priced at £565 just found
American Airlines
Fri, 21 May - Tue, 1 Jun
DUB
Dublin
DEN
Denver
£565 Return, found 2 hours ago
£565
Return
found 2 hours ago
Select American Airlines flight, departing Fri, 21 May from Dublin to Denver, returning Tue, 1 Jun, priced at £565 found 2 hours ago

Alternative airports near Denver

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

Select flight to Denver Intl. DEN. Cheapest option available. Average driving time to city centre is 32 minutes. Flights from £721
DEN
Denver Intl.
Cheapest
Average driving time to city centre32 min
Flights from £721

Frequently asked questions

How much does a flight from Dublin (DUB) to Denver, CO (DEN-Denver Intl.) cost?
You can find cheap one-way flights from £278 and cheap return flights from £515 DUB to DEN with Expedia. One-way flights typically cost between £530 and £2437, and return flights often range between £551 and £4140. 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 DUB to DEN ticket fares go up or down.
What is the cheapest month to fly from Dublin (DUB) to Denver, CO (DEN-Denver Intl.)?
The cheapest months to fly from DUB to DEN are typically during off-peak season 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 are able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Dublin (DUB) to Denver, CO (DEN-Denver Intl.)?
Only one airline offers direct flights from Dublin (DUB) to Denver, CO (DEN-Denver Intl.). Aer Lingus operates 7 direct flights from Dublin (DUB) to Denver, CO (DEN-Denver Intl.) every week.
What is the cheapest airline that flies from Dublin (DUB) to Denver, CO (DEN-Denver Intl.)?
Aer Lingus is one of the cheapest airlines offering nonstop return flights from Dublin (DUB) to Denver, CO (DEN-Denver Intl.), with tickets starting from around £360 for flights that can be booked for departure within the next year. BA Cityflyer offers one of the cheapest connecting return flights from Dublin (DUB) to Denver, CO (DEN-Denver Intl.) with a layover in Heathrow (LHR), starting from around £752. These prices are per adult for economy/coach class. 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.
How do I find cheap flights from Dublin (DUB) to Denver, CO (DEN-Denver Intl.)?
To find a cheap flight from Dublin (DUB) to Denver, CO (DEN-Denver Intl.), 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 Dublin (DUB) to Denver, CO (DEN-Denver Intl.)?
The best airline to fly with from Dublin (DUB) to Denver, CO (DEN-Denver Intl.) 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. Aer Lingus offers the most daily flights from Dublin (DUB) to Denver, CO (DEN-Denver Intl.), 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 Dublin (DUB) to Denver, CO (DEN-Denver Intl.)?
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 Dublin (DUB) to Denver, CO (DEN-Denver Intl.)?
There are around 70 connecting flights per day from Dublin (DUB) to Denver, CO (DEN-Denver Intl.). Some common connection points include Heathrow (LHR), Pearson Intl. (YYZ), and Logan Intl. (BOS).
What is the earliest flight from Dublin (DUB) to Denver, CO (DEN-Denver Intl.)?
The earliest flight from Dublin (DUB) to Denver, CO (DEN-Denver Intl.) typically departs at around 5:00 AM. This service is seasonal, active only in March, and is operated by airlines such as Lufthansa, Condor, and Alaska Airlines. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Dublin (DUB) to Denver, CO (DEN-Denver Intl.)?
You'll typically find the most flights from Dublin (DUB) to Denver, CO (DEN-Denver Intl.) on a Friday, with around 69 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include Aer Lingus, United, and Delta. Flight options on Friday are notably more plentiful compared to other days of the week, offering you greater flexibility.
What are the most popular departure times for flights from Dublin (DUB) to Denver, CO (DEN-Denver Intl.)?
The most popular departure times for flights from Dublin (DUB) to Denver, CO (DEN-Denver Intl.) are in the morning, from 9am to 12pm. Many major carriers, including United, American Airlines and Aer Lingus, offer flights during this window. Many travellers prefer this time as it allows for an early start to your journey, getting you to your destination with plenty of time left in the day.
How long does it take to fly from Dublin (DUB) to Denver, CO (DEN-Denver Intl.)?
A direct flight from Dublin (DUB) to Denver, CO (DEN-Denver Intl.) typically takes around 9 hours 50 minutes. This route covers a distance of approximately 7,052 kilometers. If you opt for a flight with one stop, your journey will usually be longer, taking about 13 hours 48 minutes. Flights with two or more stops will extend your travel time even further, typically to around 18 hours 30 minutes. Keep in mind that actual flight times can vary due to factors like wind patterns and air traffic, so it's always a good idea to allow for some extra time when planning your trip.
Can you fly business or first class from Dublin (DUB) to Denver, CO (DEN-Denver Intl.)?
You can fly business class between DUB and DEN. Airlines that offer business class service on this route include:
  • Aer Lingus
  • Air Canada
  • Med View Airlines
  • British Airways
  • Swiss International Air Lines
  • Air Baltic
  • Icelandair
  • BA Cityflyer
  • Turkish Airlines
  • KLM
  • Lufthansa
  • Air France
  • SAS
  • Delta
  • Helvetic Airways
  • United
  • Finnair
  • Hop!
  • American Airlines
How do I earn miles on a Dublin (DUB) to Denver, CO (DEN-Denver Intl.) flight with Expedia?
It's easy to earn miles on a Dublin (DUB) to Denver, CO (DEN-Denver Intl.) 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.
What airports do you fly into for Denver, CO (DEN) from Dublin (DUB)?
If you're planning to travel to Denver from DUB, you can fly directly into Denver International Airport (DEN) which offers international flights and connections. Some flights may connect through major hubs like Heathrow (LHR), Frankfurt International Airport (FRA), or Amsterdam Airport Schiphol (AMS) before reaching Denver. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Dublin (DUB) to Denver, CO (DEN-Denver Intl.) at the last minute?
Typically, booking a last minute flight from Dublin (DUB) to Denver, CO (DEN-Denver Intl.) 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 Dublin (DUB) to Denver, CO (DEN-Denver Intl.) flight and hotel package?
Securing a Dublin (DUB) to Denver, CO (DEN-Denver Intl.) flight and hotel package 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 Dublin (DUB) to Denver, CO (DEN-Denver Intl.)?
If you booked your Dublin (DUB) to Denver, CO (DEN-Denver Intl.) 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
Dublin
Destination airport
Denver Intl.
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
Return price
£514
Distance
7010 km
Average flight time
9 hours 50 mins

Book with confidence

Compare flights from Dublin to Denver easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Dublin to Denver. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Denver Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Dublin to Denver Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Dublin (DUB) to Denver Intl. (DEN)

The easiest way to view the best deals on flights from Dublin to Denver today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Dublin to Denver Intl. start at just £515 and range up to £573.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Dublin and Denver
  • booking your flight during August, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Dublin to Denver flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Dublin to Denver Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from Dublin to Denver easily and book with confidence

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