$403 Cheap Flights from Dublin (DUB) to Denver (DEN)

View $403 flight on Wed, Apr 22, 2026Opens in a new window

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

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 30% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from Dublin to Denver (DUB-DEN)

Prices were available within the past 7 days and start at $403 for one-way flights and $463 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Icelandair
Wed, Apr 29 - Mon, May 11
DUB
Dublin
DEN
Denver
$463 Roundtrip, found 6 days ago
$463
Roundtrip
found 6 days ago
Select Icelandair flight, departing Wed, Apr 29 from Dublin to Denver, returning Mon, May 11, priced at $463 found 6 days ago
Icelandair
Thu, Sep 10 - Wed, Sep 16
DUB
Dublin
DEN
Denver
$471 Roundtrip, found 4 days ago
$471
Roundtrip
found 4 days ago
Select Icelandair flight, departing Thu, Sep 10 from Dublin to Denver, returning Wed, Sep 16, priced at $471 found 4 days ago
Icelandair
Wed, Jun 3 - Sun, Sep 6
DUB
Dublin
DEN
Denver
$503 Roundtrip, found 1 hour ago
$503
Roundtrip
found 1 hour ago
Select Icelandair flight, departing Wed, Jun 3 from Dublin to Denver, returning Sun, Sep 6, priced at $503 found 1 hour ago
Icelandair
Wed, Jun 17 - Thu, Jun 25
DUB
Dublin
DEN
Denver
$504 Roundtrip, just found
$504
Roundtrip
just found
Select Icelandair flight, departing Wed, Jun 17 from Dublin to Denver, returning Thu, Jun 25, priced at $504 just found
Iberia
Thu, Apr 16 - Thu, Apr 23
DUB
Dublin
DEN
Denver
$512 Roundtrip, found 6 days ago
$512
Roundtrip
found 6 days ago
Select Iberia flight, departing Thu, Apr 16 from Dublin to Denver, returning Thu, Apr 23, priced at $512 found 6 days ago
Aer Lingus
Wed, May 6 - Sat, May 16
DUB
Dublin
DEN
Denver
$517 Roundtrip, found 4 days ago
$517
Roundtrip
found 4 days ago
Select Aer Lingus flight, departing Wed, May 6 from Dublin to Denver, returning Sat, May 16, priced at $517 found 4 days ago
British Airways
Wed, Apr 15 - Mon, Apr 20
DUB
Dublin
DEN
Denver
$524 Roundtrip, found 1 day ago
$524
Roundtrip
found 1 day ago
Select British Airways flight, departing Wed, Apr 15 from Dublin to Denver, returning Mon, Apr 20, priced at $524 found 1 day ago
American Airlines
Mon, Apr 13 - Wed, Apr 29
DUB
Dublin
DEN
Denver
$540 Roundtrip, found 4 days ago
$540
Roundtrip
found 4 days ago
Select American Airlines flight, departing Mon, Apr 13 from Dublin to Denver, returning Wed, Apr 29, priced at $540 found 4 days ago
Turkish Airlines
Thu, Apr 16 - Thu, Apr 23
DUB
Dublin
DEN
Denver
$765 Roundtrip, found 6 days ago
$765
Roundtrip
found 6 days ago
Select Turkish Airlines flight, departing Thu, Apr 16 from Dublin to Denver, returning Thu, Apr 23, priced at $765 found 6 days ago
JetBlue Airways
Wed, May 27 - Wed, Jun 3
DUB
Dublin
DEN
Denver
$835 Roundtrip, found 8 hours ago
$835
Roundtrip
found 8 hours ago
Select JetBlue Airways flight, departing Wed, May 27 from Dublin to Denver, returning Wed, Jun 3, priced at $835 found 8 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 center is 32 minutes. Flights from $1,239
DEN
Denver Intl.
Cheapest
Average driving time to city center32 min
Flights from $1,239

Find the cheapest month to fly from Dublin (DUB) to Denver (DEN)

May is typically the cheapest month to fly

From $430 - $912 per traveler.

Frequently asked questions

How much does a flight from Dublin Airport (DUB) to Denver Intl. Airport (DEN) cost?
Grab a cheap one-way flight from $403 or cheap return flight from $463 from Dublin Airport (DUB) to Denver Intl. Airport (DEN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Dublin Airport (DUB) to Denver Intl. Airport (DEN)?
Planning your getaway for April is a great way to save, as it's the cheapest month for flights between DUB and DEN. You'll usually find the lowest prices during the off-season.
What is the cheapest airline that flies from Dublin Airport (DUB) to Denver Intl. Airport (DEN)?
Expedia's filter tool lets you easily compare travel time, airlines and fares all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest DUB to DEN flight.
How many flights per day from Dublin Airport (DUB) to Denver Intl. Airport (DEN)?
Nonstop flights from Dublin Airport (DUB) to Denver Intl. Airport (DEN) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filters. Enter your travel details and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from DUB to DEN?
You'll usually find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Dublin Airport (DUB) to Denver Intl. Airport (DEN)?
To reach Denver Intl. Airport (DEN) on schedule, book a flight that takes off from Dublin Airport (DUB) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Dublin Airport (DUB) to Denver Intl. Airport (DEN) last-minute?
Waiting until right before your break to book a ticket from DUB to DEN often results in higher prices. Although you may find some last-minute deals, there's no guarantee. Be flexible with your itinerary to maximize your chances of scoring a bargain.
Is it cheaper to book a DUB to DEN flight and hotel package?
Securing a DUB to DEN flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip in one place. Select from our impressive range of stays and then add flights, car rentals and activities 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 Airport (DUB) to Denver Intl. Airport (DEN)?
It's usually possible to cancel or reschedule your DUB to DEN flight. However, if it's been more than 24 hours since booking, additional charges may apply. Check your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find further details on our Customer Service portal.

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, Swiss International Air Lines, Turkish Airlines, United
Roundtrip price
$463
Distance
4381 mi

Book with confidence

Dublin to Denver Flights

The cheapest times to fly from Dublin to Denver

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 Dublin to Denver are during the month of April. You can find some of the cheapest flights from Dublin to Denver with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Dublin to Denver

Sunday is one of the best days to book for cheap flights from Dublin to Denver: 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 Dublin to Denver

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 Dublin to Denver in 2026. You can also book with separate airlines for your outbound and return journeys, from $403 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 Dublin to Denver 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 Dublin to Denver 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.

 

Dublin to Denver Flights

*Flight schedules are subject to change.

Explore a world of travel with Expedia

*Available to One Key members.