DUB - DEN

£277 Find Cheap Flights from Dublin to Denver – Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dublin to Denver departing on 20/8. 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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Everything you should know

Cheapest return fare
£515
Typical prices: £479-£707
JetBlue
Thu 27/8Mon 31/8
DUB - DEN • 1 stop
Cheapest direct flights
£578
Aer Lingus
Wed 16/9Wed 23/9
DUB - DEN • Direct
Direct flights
Mon, Wed, Fri, Sat, Sun
You can fly direct with Aer Lingus. Average duration is 9h 50m
Direct flights
Direct flights
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Direct flights
Direct flights
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Top airlines
Cheapest • from £515 (return)
Best reviews • 7.3 score
Airline reviews
Airline reviews
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Airline reviews
Airline reviews
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Top stopover airports
Cheapest • Avg £362 (return)
Shortest trip • 12h 46m (one-way)
Insights
Insights
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Avoid delays
Most punctual • 86% on-time
Best time • Fewest delays
Insights
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When to book
in advance
Our data shows that travellers who book at least 2 weeks in advance save around 15% compared to booking last minute.
Insights
Insights
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Insights
When to travel
Cheapest • 36% price drop
Most popular
Good to know
Good to know
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Dublin to Denver (DUB-DEN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Dublin to Denver 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 return flight deals from Dublin to Denver

Thu, 27 Aug - Mon, 31 Aug
JetBlue Logo
11:30 - 22:58
DUB
-
DEN
18h 28m
1 stop
JetBlue Logo
09:54 - 08:20
DEN
-
DUB
15h 26m
1 stop
£515JetBlue
Fri, 28 Aug - Sat, 5 Sep
JetBlue Logo
10:40 - 22:42
DUB
-
DEN
19h 02m
1 stop
JetBlue Logo
09:44 - 08:20
DEN
-
DUB
15h 36m
1 stop
£522JetBlue
Tue, 1 Sep - Sun, 6 Sep
JetBlue Logo
10:40 - 22:42
DUB
-
DEN
19h 02m
1 stop
JetBlue Logo
09:54 - 08:20
DEN
-
DUB
15h 26m
1 stop
£522JetBlue
Wed, 2 Sep - Mon, 14 Sep
Icelandair Logo
12:15 - 19:00
DUB
-
DEN
13h 45m
1 stop
Icelandair Logo
16:40 - 13:15
DEN
-
DUB
13h 35m
1 stop
£562Icelandair
Tue, 1 Sep - Mon, 14 Sep
Icelandair Logo
14:15 - 19:00
DUB
-
DEN
11h 45m
1 stop
Icelandair Logo
16:40 - 13:15
DEN
-
DUB
13h 35m
1 stop
£562Icelandair
Wed, 16 Sep - Wed, 23 Sep
Aer Lingus Logo
15:25 - 18:15
DUB
-
DEN
9h 50mdirect
Aer Lingus Logo
20:00 - 11:45
DEN
-
DUB
8h 45mdirect
£578Aer Lingus
Tue, 3 Nov - Sun, 8 Nov
British Airways Logo
08:50 - 15:10
DUB
-
DEN
13h 20m
1 stop
British Airways Logo
17:01 - 12:15
DEN
-
DUB
12h 14m
1 stop
£602British Airways
Wed, 4 Nov - Tue, 10 Nov
British Airways Logo
08:50 - 15:10
DUB
-
DEN
13h 20m
1 stop
British Airways Logo
17:01 - 12:10
DEN
-
DUB
12h 09m
1 stop
£602British Airways
Sun, 6 Sep - Sun, 20 Sep
Aer Lingus Logo
15:25 - 18:15
DUB
-
DEN
9h 50mdirect
Aer Lingus Logo
06:00 - 05:15
DEN
-
DUB
16h 15m
1 stop
£615Aer Lingus
Tue, 1 Sep - Tue, 8 Sep
Icelandair Logo
14:15 - 09:03
DUB
-
DEN
25h 48m
2 stops
Icelandair Logo
16:40 - 11:05
DEN
-
DUB
11h 25m
1 stop
£790Icelandair
Booking Insights

KAYAK’s insights & trends for Dublin to Denver flights

Get data-powered insights and trends into flights from Dublin to Denver to help you find the cheapest flights, the best time to fly and much more.

How much is a return flight from Dublin to Denver?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from Dublin to Denver departing in August.

Flight prices are below average for this route right now.

Flights to Denver from Dublin usually cost between £612 and £855 in August.
The lowest price found in the past 5 days was £515 on JetBlue (27 Aug–31 Aug).

What is the cheapest month to fly from Dublin to Denver?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Dublin to Denver, 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 Dublin to Denver is February, where tickets cost £343 (return) on average. On the other hand, the most expensive months are August and July, where the average cost of round-trip tickets is £720 and £715 respectively.

Can I save money by flying with a stopover from Dublin to Denver?

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of £537, prices are generally cheapest when you fly direct.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Dublin to Denver, 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 Dublin to Denver, you should book around 2 weeks before departure, which saves you about 15% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 3 weeks before departure.

Good to know - Cheap tickets from Dublin to Denver

Low season

April

Cheapest flight

£277
Best time to beat the crowds (28% less expensive on average)
Most popular time to fly and prices are also 13% lower on average.
Flight from Dublin to Denver

When to book flights from Dublin to Denver

Are your dates flexible? Find out the best times to travel from Dublin to Denver based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Dublin to Denver

  • Are there hotels at Denver Airport?

    Yes, the Westin Denver International Airport Hotel and Conference Centre is a stone’s throw from the main terminal - you’ll find it just above the transit centre.

  • How do I get from the airport to Denver City centre?

    You can easily catch the A-line commuter train, which departs every 15min during peak travel times and every 30min from 03:00 to 05:00 and 18:30 to 01:00. The train will get you to Denver Union Station in around 37min and an unlimited day pass costs around €13. The Airport also operates a bus line called Skyline, which runs from 03:30 until midnight. Journey time to central Denver usually takes about 1h. Again, an unlimited day pass costs around €13. Taxis on the other hand, can cost up to $56 (or more) (€48) to central Denver and will take 40min. Another option is Rideshare, which is a private car shared with other passengers. At around $25-40 (€22-34) and also takes around 40min to downtown area.

  • How many flights are there between Dublin and Denver per day?

    There is a maximum of 1 direct flight a day that takes off from Dublin and lands in Denver, with an average flight time of 9h 50m. The most common departure time is 15:00 and most flights take off in the afternoon. Each week, there are 5 flights.

  • What is the cheapest flight from Dublin to Denver?

    In the last 5 days, the lowest price for a flight from Dublin to Denver was £277 for a one-way ticket and £515 for a return.

  • Which airports will I be using when flying from Dublin to Denver?

    On your way to Denver, you’ll fly out from Dublin. You’ll be landing at Denver Intl.

  • Which airlines offer Wi-Fi service onboard planes from Dublin to Denver?

    Iberia, and Aer Lingus offer inflight Wi-Fi service on the Dublin to Denver flight route.

  • Which aircraft models fly most regularly from Dublin to Denver?

    The Airbus A330-200 is the aircraft model that flies most regularly on the Dublin to Denver flight route.

  • Which airline alliances offer flights from Dublin to Denver?

    oneworld is the only airline alliance operating flights between Dublin and Denver.

  • On which days can I fly direct from Dublin to Denver?

    You can catch a direct flight from Dublin to Denver on on Monday, Wednesday, Friday, Saturday, and Sunday.

  • Which is the best airline for flights from Dublin to Denver, Aer Lingus or Icelandair?

    The two airlines most popular with KAYAK users for flights from Dublin to Denver are Aer Lingus and Icelandair. With an average price for the route of £593 and an overall rating of 7.3, Aer Lingus is the most popular choice. Icelandair is also a great choice for the route, with an average price of £485 and an overall rating of 7.0.

  • How does KAYAK find such low prices on flights from Dublin to Denver?

    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 Dublin to Denver.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Dublin to Denver?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Denver from Dublin 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 Dublin to Denver?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Denver with an airline and back to Dublin with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Dublin to Denver?

    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 to Denver from Dublin up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Dublin to Denver

  • Looking for a cheap flight from Denver to Dublin? 25% of our users found flights on this route for £612 or less round-trip.
  • You can have food delivered from any of the restaurants in Denver International Airport (DEN) to wherever you are in the airport including your flight gate. Download the AtYourGate app and select anything you like. Food arrives in 30min or less.
  • Denver Airport is renowned for being pet friendly. You’ll find a pet resort called Paradise 4 Paws. Open 24/7, your pet can walk around the 25,000 square foot area, have a massage or rest in a private suite.
  • If you have time to kill, there is plenty to see and do. Denver is the largest airport in America so you could take yourself for a walk. Alternatively, you could take in one of the art exhibitions or gaze at the view of the Rockies from Gates C23 and C24.
  • If you fancy some fresh air, head to the outdoor plaza in Denver Airport. You’ll find a pop-up park there in summer and an outdoor ice-skating rink in winter.

Prefer to fly direct from Dublin to Denver?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Dublin to Denver Intl.
Find which airlines fly direct from Dublin Airport to Denver Intl Airport, which days they fly and book direct flights.

Direct departures

Dublin to Denver Intl

Monday

Aer Lingus

Aer Lingus

Wednesday

Aer Lingus

Aer Lingus

Friday

Aer Lingus

Aer Lingus

Saturday

Aer Lingus

Aer Lingus

Sunday

Aer Lingus

Aer Lingus

See more direct flights

Direct returns

Denver Intl to Dublin

Monday

Aer Lingus

Aer Lingus

Wednesday

Aer Lingus

Aer Lingus

Friday

Aer Lingus

Aer Lingus

Saturday

Aer Lingus

Aer Lingus

Sunday

Aer Lingus

Aer Lingus

See more direct flights

Reviews of the top 3 airlines flying from Dublin to Denver

 
See real verified KAYAK customer reviews for airlines flying from Dublin to Denver. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Dublin to Denver? 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.
7.3
Aer LingusOverall score based on 1684 reviews
7.2Comfort
8.1Crew
7.4Boarding
7.0Entertainment
6.7Food
Airline reviews

On time departure and arrival at LAX - good inflight entertainment - all basic seats on every airline right now begin to feel small after 10 hours!!

8.0 ExcellentSusie, Jul 2026
DUB - LAX
Read more Aer Lingus reviews

On time departure and arrival at LAX - good inflight entertainment - all basic seats on every airline right now begin to feel small after 10 hours!!

I was pleasantly surprised. I've never flown this airline and the seats were comfy, I couldn't select my seat but luckily got aisle and was able to comfortably sleep the whole trip except when they came around with an in flight free meal, drinks then snack at the end. I'd fly with Aer Lingus again. The only annoying thing is you had to pay for WiFi for different hours of usage but luckily I didn't need it

This was a great flight. I love the way they had general boarding board from the back first by seat row and in general the flight was very comfortable. The seats were actually comfy, and the food served was surprisingly good.

A seat was broken There was a delay of 45min A checked bag was missing in Boston

The service was some of the worst I have experienced on an international flight. The service was rude, the quality of the food was very low. The speed of service was insanely quick. You couldn’t finish your pretzels before the meal came before the coffee came before trash collection came. Then they never came back for 5 hours. They rushed everything so they could get it over with.

A special shout-out to one of the check-in staff at DUB yesterday noon. We had to use the "Closing Flights" counter and we met, hands down, the most efficient person - able to resolve several issues in the matter of minutes, while remaining polite and calming everyone down. Great job, Aer Lingus!

Everything was great!! I had no problems!! I would fly Aer Lingus again! 🥰

From Rome to Dublin if you want any refreshments you have to pay for them, Not used to this as we typically get soft drinks and a little snack on a 3hour flight in the US.

Boarding was fine, difficult to understand the guy over the speaker though so we were unsure when exactly to board until they updated the monitor by the gate. Flight itself was fine, nice flight attendants, seats were comfortable enough, good selection of entertainment on the screens. Other airlines at a similar price point have included wifi though, at a minimum messaging, for free, so that was a little disappointing to not have that. But otherwise fine. Food was pretty decent, nice hot meal, good drink selection, nice snacks. Bathrooms were ok, could've been cleaned a little more often, but they were never bad.

Dublin airport is big and US Customs and Immigration screening officers are is part of the process there. This eliminates screening upon arrival to US, however should be taken into consideration when playing your transfer. After all, pleasant experience enhanced by draft Guinness and Irish coffee at the buffet area near the gate. We loved boarding by the row, back of the airplane first.

The ticket was reserved in my name but not paid for by underpricer. Alaska airlines was unable to issue my ticket (could not connect the ticket with the PNR) due to an error with underpricer and I spent the better part of 2 hours at the ticket counter trying to rectify.

Terrible way of boarding in Reykjavik. Seats comfortable. Meal was good.

Unlike my prior three connections on this latest journey, this flight was fairly good. Only issue was boarding as it was once again one of those Icelandic issues of bunch up, walk in the rain to a bus that then has you run up three flights of stairs to board the plain. I was in Saga class but the bus scramble eliminates any chance you get on first and have to then find a place to squeeze your carry on into an overhead that the people in economy populate so they can grab it on their way out up front. But unlike other Icelandic flights this journey I did find more the of the business class like accommodations then the other air segments. This one found a pillow and blanket waiting for me and I actually received a small cup of sparkling wine and had a bottle of water in place. Service was attentive and the flight departed and arrived on time. Received a menu and had choices of a hot or cold meal. I choose the hot which was cod and it was good. Decent size portion, salad and a choice of dinner rolls. Beverage menu was a selection of wines, beer and soft drinks. Desert was a small Tiramisu. Overall the six hour flight was a good experience for the price point.

We paid for saga class, which is the business class for international. My seat was broken and did not recline and my monitor for in-flight entertainment was broken.

The flight itself was fine, even with a one-hour delay leaving on the Reykjavik tarmac (the lost time was made up during flight). Our experience at the Reykjavik airport on arrival was terrible due mostly to the one hour it took for passport control. Only two stations were open for our category, and the room was full with a huge crowd.

Friendly flight crew. Airplane (757) configured as a domestic flight (no lie-flat seats) & no advanced meal selection.

The most uncomfortable seat i’ve ever had on a flight

Best smelling onboard bathrooms ever. Even after use the whole flight. Biggest overhead bins. Most legroom in economy class. Great Icelandiic music. Really nice staff. Icelandair is awesome! (Don’t fly Air Canada! During the strike they lied about no flights available (I booked this flight myself) and hid the process to get money back on their website by obscuring menu titles, then made it difficult and time consuming to fill out. I’m Canadian. Don’t trust Air Canada!

Boarded with no problems. Sat on the tarmac for an hour before taking off. We were the last ones on our connecting flight. Didn't think we were going to make it. Our flight to Iceland was similarly delayed. When we've flown other airlines, pilots have tried to make up time while in the air. This doesn't seem to be something that Icelandair does. We made all of our flights, but it was stressful and we didn't think it was going to happen based on the time we arrived.

Did not like last minute change to our itinerary that made us spend the night in the airport

Long line with check in at the DIA British Airway counter.

It was great overall. A few slight improvements could be made on the onboarding process at the Gates with announcements and clarity of communications (both at the gate and in flight). The movies in the entertainment options could be improved for bollywood, hollywood.

Everything excellent except for bag drop off. We started at the D area and that was so slow that it was eventually closed just as we were about to go to a station. We then went to F. We got one suitcase checked and then the screen showed that the station was no longer operable. There were long lines everywhere so we had to ask if we could butt in to the next station to finish. Again, this was the only incident, otherwise it was an excellent flying experience

There were no gluten-free vegan options available, so food was very limited on this flight, and some of the crew weren’t especially helpful about it. To make matters worse, a passenger was sick on board, and although the area was cleaned, the smell lingered for the rest of the journey. On top of that, we ended up circling for an extra hour, which only made the unpleasant situation drag on even longer.

We never made it onto this flight due to BA's lackluster organisation.

We arrived late to London, and consequently were 5 min. late to be allowed through security for our next flight. Even though dozens of people missed the same flight, BA did not radio ahead to hold open security for an extra 5-10 min. to allow people to get on the flight. This caused an additional 6 hour delay in London after waiting over an hour in Customer Service to get rebooked. They did not have enough staff on hand to help people in a timely manner. Not at all happy with the BA's customer care or customer service.

Boarding was fairly chaotic. One of your employees clipped my ankle as he was passing with an empty wheelchair and not only did not apologize but stated something to the effect of “oh forGod’s sake.” There was plenty of room for him to pass. otherwise, everything was excellent.

Seating is tight if you don’t upgrade. Food was decent. Boarding and unboarding was efficient. Smooth flight. Could make upgrades more affordable

The seat was very uncomfortable. It helped to use the foot rest. Could not sleep because of the seat.

The crew was so unfriendly. Our (the last) section of the plane only got drink service once during an over 9 hour flight. When it come to the main meal service we only got a vegetarian option and where told the chicken option gone. About 30 minutes later I went to the bathroom and lo and behold the whole crew were eating the chicken option.

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

Information on your arrival and departure airports