Cheap flights from Dublin to Denver from £389

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/6. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — DEN
18 May — 25 May1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Dublin to Denver Intl are usually found in September or February, booked 52 days in advance, depart on a Monday or Friday and return on a Monday

Cheap flight deals from Dublin to Denver

Enter your travel dates to find the best prices.

Cheapest flights from Dublin to Denver
Explore the most affordable flight options available from Dublin to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 April 2026.

Fri 5/612:15
DUB
-
DEN
1 stop31h 25m
Icelandair
Tue 9/616:40
DEN
-
DUB
1 stop11h 25m
Icelandair
Deal found 17/4£389
Mon 15/609:30
DUB
-
DEN
1 stop21h 36m
Multiple Airlines
Mon 29/618:40
DEN
-
DUB
1 stop17h 00m
Multiple Airlines
Deal found 14/4£390
Mon 8/609:30
DUB
-
DEN
1 stop21h 36m
Multiple Airlines
Mon 22/618:40
DEN
-
DUB
1 stop17h 00m
Multiple Airlines
Deal found 15/4£392
Mon 18/510:30
DUB
-
DEN
1 stop12h 50m
British Airways
Wed 27/512:27
DEN
-
DUB
2 stops17h 28m
British Airways
Deal found 17/4£394
Wed 20/520:30
DUB
-
DEN
1 stop26h 50m
British Airways
Fri 29/514:21
DEN
-
DUB
2 stops20h 29m
British Airways
Deal found 16/4£395
Mon 15/609:30
DUB
-
DEN
1 stop21h 36m
Finnair
Mon 29/612:39
DEN
-
DUB
1 stop14h 06m
Finnair
Deal found 13/4£396
Wed 20/508:35
DUB
-
DEN
2 stops22h 14m
British Airways
Mon 25/512:27
DEN
-
DUB
2 stops19h 03m
British Airways
Deal found 16/4£398
Mon 18/509:30
DUB
-
DEN
1 stop20h 15m
Finnair
Wed 27/514:21
DEN
-
DUB
1 stop14h 29m
Finnair
Deal found 16/4£399
Tue 19/509:40
DUB
-
DEN
2 stops20h 05m
Finnair
Mon 25/514:21
DEN
-
DUB
1 stop14h 29m
Finnair
Deal found 15/4£400
Tue 19/509:40
DUB
-
DEN
2 stops20h 05m
Finnair
Tue 26/514:21
DEN
-
DUB
1 stop14h 29m
Finnair
Deal found 16/4£401
Wed 20/512:40
DUB
-
DEN
1 stop16h 19m
Finnair
Wed 27/514:21
DEN
-
DUB
1 stop14h 29m
Finnair
Deal found 15/4£403

Find flight deals from Dublin to Denver

Discover tips and strategies to find the most affordable flight options for your journey from Dublin (DUB) to Denver (DEN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 18 April 2026.

Round-trip from

£389

Popular in

August

Cheapest in

September

Average price

£530
Icelandair
  • Icelandair
  • 5/6-9/6
  • 2 total stops
  • 42h 50m total
  • Dublin to Denver
Highest demand for flights based on searches. 7% potential increase in price (£36 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£11 potential savings vs. average return price).
Average for round-trip flights in April 2026

Cheapflights Fare Finder

 
Customise your flight search to find flights from Dublin to Denver that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 18 April 2026.
Use the filters below to find and compare flights from Dublin to Denver that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

DublinDenver

DUB - DEN

DUBDEN

Dublin

Mon 18/5

10:30-16:20

1 stop12h 50m

Denver Intl

Wed 27/5

12:27-12:55

2 stops17h 28m

£394

DublinDenver

DUB - DEN

DUBDEN

Dublin

Mon 18/5

09:30-22:45

1 stop20h 15m

Denver Intl

Wed 27/5

14:21-11:50

1 stop14h 29m

£399

DublinDenver

DUB - DEN

DUBDEN

Dublin

Fri 29/5

05:55-15:36

2 stops16h 41m

Denver Intl

Thu 4/6

00:55-09:15

1 stop25h 20m

£417

DublinDenver

DUB - DEN

DUBDEN

Dublin

Mon 11/5

11:10-20:15

2 stops16h 05m

Denver Intl

Mon 25/5

07:55-09:15

2 stops18h 20m

£417
Fastest return journey

DublinDenver

DUB - DEN

DUBDEN

Dublin

Mon 1/6

15:25-23:59

1 stop15h 34m

Denver Intl

Mon 15/6

20:00-11:45

Nonstop8h 45m

£477

DublinDenver

DUB - DEN

DUBDEN

Dublin

Fri 1/5

11:10-22:48

2 stops18h 38m

Denver Intl

Sat 16/5

07:55-07:55

2 stops17h 00m

£477

DublinDenver

DUB - DEN

DUBDEN

Dublin

Fri 8/5

11:30-22:59

1 stop18h 29m

Denver Intl

Fri 22/5

14:20-08:20

1 stop11h 00m

£521

DublinDenver

DUB - DEN

DUBDEN

Dublin

Sun 10/5

11:30-22:59

1 stop18h 29m

Denver Intl

Fri 22/5

14:20-08:20

1 stop11h 00m

£542

DublinDenver

DUB - DEN

DUBDEN

Dublin

Wed 20/5

08:35-23:49

2 stops22h 14m

Denver Intl

Fri 10/7

18:35-07:45

1 stop30h 10m

£548

DublinDenver

DUB - DEN

DUBDEN

Dublin

Mon 1/6

05:55-17:14

2 stops18h 19m

Denver Intl

Mon 15/6

10:25-09:15

1 stop15h 50m

£575

Flights are sorted by cheapest return flights first.

Deals found on 16/4

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

Best time to book a flight from Dublin to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver from Dublin with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Dublin to Denver

How far ahead should I book a flight from Dublin to Denver?

Use this chart to determine the optimal time to book a return flight from Dublin to Denver. Price data was last updated on 10 April 2026.

The price you pay for your flight from Dublin to Denver may vary depending on when you book. For the best chance of a lower fare, look to book 51 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Dublin to Denver?

Currently, September is the cheapest month in which you can book a flight from Dublin to Denver (average of £440). Flying from Dublin to Denver in August is currently the most expensive (average of £724). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost for a return flight from Dublin to Denver?

Reviews of airlines servicing Denver

Get insights into the airlines that provide service to Denver. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Denver. Reviews last updated 18 April 2026.
Get a feel of what it's like to fly with United Airlines,Aer Lingus, andIcelandair from Dublin to Denver by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.1

Food

6.6

Comfort

7.3

Boarding

7.7

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.

Crew

8.1

Food

6.6

Comfort

7.3

Boarding

7.7

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.

Crew

8.1

Food

6.6

Comfort

7.3

Boarding

7.7

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.

Crew

8.1

Food

6.6

Comfort

7.3

Boarding

7.7

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.

Crew

8.1

Food

6.6

Comfort

7.3

Boarding

7.7

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.

Related info for your journey

Find useful and relevant information for your journey from Dublin to Denver. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • How popular is this Dublin to Denver flight route?

  • How long is the flight from Dublin to Denver?

    British Airways, Finnair, and Delta can get you from Dublin to Denver in just under 12h 50m. Your travel time can differ by up to 7h 25m. There are 4378 mi between Dublin and Denver. Both multi-stop and direct flights can be found to your destination and back.

  • What are the cheapest airlines flying from Dublin to Denver round-trip?

    British Airways, at £299, was found to be the cheapest airline from Dublin to Denver.Alternate airlines flying return to your destination include Icelandair and Aer Lingus. British Airways is currently priced 47% below the average price you’ll pay for this route.

  • Can I find deals for flights from Dublin to Denver that include hotel bookings?

    Yes. In addition to deals on Dublin to Denver flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Dublin to Denver?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dublin to Denver.

  • Can I find deals for business class flights from Dublin to Denver?

    Yes. Cheapflights offers flight deals from Dublin to Denver by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Dublin to Denver?

    Currently, September is the cheapest month in which you can book a flight from Dublin to Denver (average of £440). Flying from Dublin to Denver in August is currently the most expensive (average of £724). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 4 airlines flying from Dublin to Denver

Discover the top 4 airlines that operate flights from Dublin to Denver. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 18 April 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£299Average£407FlexibilityNo cancel feeOn-time70%
Search British Airways flights
IcelandairCheapest£333Average£556FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Aer LingusCheapest£389Average£641FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
United AirlinesCheapest£477Average£758FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Dublin to Denver?

Deals for Dublin to Denver flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Dublin to Denver?

Cheapflights simply makes it quick and affordable to book flights from Dublin to Denver by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Dublin to Denver with no change fees?

Need flexible booking options for your flight to Denver from Dublin? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Dublin to Denver become cheaper?

Yes, Cheapflights offers price alerts on Dublin to Denver flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.