DUB - DEN

£396 Find Cheap Flights from Dublin to Denver

This is the cheapest return flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dublin to Denver departing on 18/6. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Denver

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Dublin to Denver, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Dublin to Denver, as well as popular online travel agencies
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Everything you should know

Cheapest return fare
£396
Typical prices: £808-£524
Finnair
Thu 18/6Wed 24/6
DUB - DEN • 1 stop
Cheapest direct flights
£570
Aer Lingus
Wed 1/7Fri 17/7
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 £396 (return)
Best reviews • 7.3 score
Airline reviews
Airline reviews
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Airline reviews
Airline reviews
+1
Top stopover airports
Cheapest • Avg £364 (return)
Shortest trip • 12h 09m (one-way)
Insights
Insights
Insights
Insights
Avoid delays
Most punctual • 83% on-time
Best time • Fewest delays
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 2 weeks in advance save around 24% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 37% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Denver!
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, 18 Jun - Wed, 24 Jun
Finnair Logo
12:40 - 19:36
DUB
-
DEN
13h 56m
1 stop
Finnair Logo
12:39 - 09:45
DEN
-
DUB
14h 06m
1 stop
£396Finnair
Thu, 18 Jun - Wed, 24 Jun
Finnair Logo
12:40 - 19:36
DUB
-
DEN
13h 56m
1 stop
Finnair Logo
14:22 - 11:50
DEN
-
DUB
14h 28m
1 stop
£397Finnair
Thu, 18 Jun - Sat, 27 Jun
Finnair Logo
09:30 - 00:17
DUB
-
DEN
21h 47m
1 stop
Finnair Logo
12:39 - 09:45
DEN
-
DUB
14h 06m
1 stop
£398Finnair
Thu, 18 Jun - Sat, 27 Jun
Delta Logo
05:55 - 15:38
DUB
-
DEN
16h 43m
2 stops
Delta Logo
12:12 - 10:00
DEN
-
DUB
14h 48m
2 stops
£401Delta
Thu, 18 Jun - Sat, 27 Jun
Delta Logo
05:55 - 15:38
DUB
-
DEN
16h 43m
2 stops
Delta Logo
10:23 - 08:45
DEN
-
DUB
15h 22m
1 stop
£401Delta
Wed, 17 Jun - Sun, 21 Jun
Finnair Logo
09:30 - 00:17
DUB
-
DEN
21h 47m
1 stop
Finnair Logo
14:22 - 11:50
DEN
-
DUB
14h 28m
1 stop
£404Finnair
Tue, 23 Jun - Wed, 8 Jul
Finnair Logo
09:30 - 00:17
DUB
-
DEN
21h 47m
1 stop
Finnair Logo
14:34 - 11:50
DEN
-
DUB
14h 16m
1 stop
£463Finnair
Thu, 18 Jun - Sat, 27 Jun
Iberia Logo
09:30 - 00:17
DUB
-
DEN
21h 47m
1 stop
Iberia Logo
20:00 - 11:45
DEN
-
DUB
8h 45mdirect
£475Iberia
Fri, 10 Jul - Wed, 22 Jul
JetBlue Logo
10:40 - 09:03
DUB
-
DEN
29h 23m
1 stop
JetBlue Logo
14:09 - 09:00
DEN
-
DUB
11h 51m
1 stop
£496JetBlue
Fri, 10 Jul - Mon, 20 Jul
JetBlue Logo
10:40 - 09:03
DUB
-
DEN
29h 23m
1 stop
JetBlue Logo
23:59 - 09:00
DEN
-
DUB
26h 01m
1 stop
£497JetBlue
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 June.

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 £345 (return) on average. On the other hand, the most expensive months are August and July, where the average cost of round-trip tickets is £775 and £717 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 £540, 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 24% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 4 weeks before departure.

Good to know - Cheap tickets from Dublin to Denver

Low seasonApril
Cheapest flight£396
Best time to beat the crowds (25% less expensive on average)
Most popular time to fly and prices are also 6% 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.

  • What is the cheapest flight from Dublin to Denver?

    In the last 3 days, the lowest price for a flight from Dublin to Denver was £413 for a one-way ticket and £396 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?

    Only Iberia offers 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 American Airlines?

    The two airlines most popular with KAYAK users for flights from Dublin to Denver are Aer Lingus and American Airlines. With an average price for the route of £584 and an overall rating of 7.3, Aer Lingus is the most popular choice. American Airlines is also a great choice for the route, with an average price of £465 and an overall rating of 7.1.

  • 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

  • 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 4 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 1598 reviews
7.0Entertainment
6.7Food
8.1Crew
7.4Boarding
7.2Comfort
Airline reviews

Vegetarian food option was very poor. Effectively, overcooked rice ("risotto"). Zero protein which is always disappointing with no vegetables and poorly seasoned. Basically had lots of carbs on 6-hour flight. Not acceptable for business class in 2026. Flight was otherwise very good.

8.0 ExcellentAnonymous, Jun 2026
DUB - BOS
Read more Aer Lingus reviews

Vegetarian food option was very poor. Effectively, overcooked rice ("risotto"). Zero protein which is always disappointing with no vegetables and poorly seasoned. Basically had lots of carbs on 6-hour flight. Not acceptable for business class in 2026. Flight was otherwise very good.

Small plane. Tight seating . What can one say except that it was fast!

Flight crew was very cold and stood around a lot talking to each other.

I sat in the first row behind first class. There was plenty of legroom. The entertainment was great. I saw two excellent movies and one episode of a sitcom. Also enjoyed the flight tracker.

On time, only a little turbulence, very competent and caring attendants. Clear information.

The flights are literally always delayed arriving, boarding and taking off so they are always late for the connection. I planned ahead so I was okay but many others aren't. The food was terrible. The staff was very pleasant. I appreciate boarding back to front.

On a four hour delayed flight now on seats back end of the plane instead front-

My issue is with the SkyWest terminal. The flight was not listed on the main airport flight screen list, and I had to do a Google search to locate the terminal and gate. We had to ask several airport employees where to locate the phantom gate. The airport did not provide adequate signage and was confusing. When we arrived, there was one vendor providing services that quickly closed, leaving zero options for food and drink while we waited hours for our delayed flight. The crew that assisted with check-in and boarding was VERY friendly.

Checked in ok for 3 flights at the airport check-in desk, but apparently I was not checked in to my connecting flights even though I was assured that I was and had seats on all 3 flights. Aer Lingus departure was also delayed for 1.5 hours which gave no time to collect bags to go through customs.

No complimentary drinks or snacks offered on a 2 hour flight was disappointing but everything else went well

Our flight was repeatedly delayed for maintenance problems: scheduled for 9.30am, eventually delayed to 7pm! Very very inconvenient! AA should have provided a substitute plane much earlier.. On the other hand, Customer Service crew in Charlotte helped us to reach NY (LGA) by late afternoon. Thank you Patricia!! The actual flight was quick and very comfortable. As always a. excellent, professional crew. [no food on a a short hop).

Take-off delayed an hour because of a missing flight officer, so,arrived in Charlotte lates causing many passengers to miss connections. Otherwise a very good flight, safe and comfortable, with an excellent professional crew.

Little time between flight from Dallas to flight to Gainesville. We chose this one, 43 minutes between, because the price for a connection with at least an hour between, was so much higher. Had to ask passengers on the Dallas flight to please allow us to deplane ahead of them. The economy passengers allowed this. We had to walk very fast to the next gate, 35 gates away. Thankfully all in the same terminal. Getting to the small Gainesville plane was a little confusing as you enter an area that is boarding many small planes at the same time. We stood in the wrong line for about 15 seconds before realizing it was not our Gainesville flight. Since I had boarded at this gate in the past, I knew to check the signs carefully so we weren’t lost. The first class seat experience was wonderful. I really enjoyed the upgrade. We were offered an alcohol drink as soon as we sat down. I got something different but it was a great gesture especially since we really had to hurry to make the flight. We had packed expecting we might miss this connection, but made it. Our luggage didn’t miss the flight. American Airlines delivered our bags to our home the next day. That was very convenient!

The plane was large, not full, but one with 3 seats near each window and 4 in a row in the middle of the plane. There were screens on the backs of the seats for entertainment and information. To use the entertainment one needs ear plugs that physically plug into the screen. My husband had some he let me use as I only had blue tooth type. The stewards gave out some headphones to some, but when my neighbor asked for some, the steward said no. So maybe they ran out? Idk. Bring the old kind of headphones or earbuds if you want entertainment in case this is the type of entertainment offered. We had a very tight connection in Miami. 43 minutes. The other economy passengers allowed us to get ahead of them because I asked if we could since we were near boarding time for our next flight and 35 gates away. They were extremely kind. First class wasn’t going to allow us to pass through. We did make the next flight. Our baggage didn’t, but they were delivered to us the next day and we were prepared with essentials in our carry on packs.

Food is what you expect on a plane. Nothing gluten free. But that is expected. Drinks, apple juice, was fine. Seat, what I expected. Fine.

This was my first flight on Aer Lingus and it was great. The plane wasn't full so I could move to a seat with extra room. The food was pretty good for airline food and the staff was nice and attentive. I enjoyed the media provided during my 10 hour flight. We arrived home early and it's always good to be home!

Everything went as planned. The only issue I had was with the gate C31 attendant. The person could barely speak English and was very difficult to understand.

The flight took off an hour late which made the connection concerning

We departed early and arrived early The plane was clean and the crew was incredibly efficient another positive experience with American airlines for me.

The flight from LA to Chicago was smooth and service was very good overall.

Awful. The Iceland airport was a complete mess. Boarding was a chaotic, the seats were awful, there was a group of rowdy 20 something men in our row hooting and hollering, ordering alcoholic drink after drink. Yelling and laughing at the top of their lungs and the crew just went along with it. Passengers complained to the men, asking if they could keep it down (it was a night time flight so people wanted to sleep). They never listened crew continued to laugh with them, flirt with them and serve them more drinks. No free food or snacks, seats were horribly uncomfortable. Worst flight I've had in a long time

At least one soda free, felt like I was nickeled to death.

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

The Icelandair crew was so kind!!! Thank you for making my first trip to Paris a great one!

I am not going to fillo this out for each leg of my trip. My first review holds for the experience

The movie choices were poor. The worst problem is the treatment of passengers durinng pre-boarding. In one case the primes were checked in and sent down the boarding tunnek only to stand waiting there while the plane is cleaned. In the second case the bus was loaded, the doors closed and just stood there unmoving like sardeines in a tin for over TEN minutes. In both cases it was rough on us old guys who find standing for long periods trying.. In other words, Donnt just stack us up and forget us.

I had no idea that my ticket only paid for my right to get on the plane. They charged me $130 for my carry-on bag because it was 1 inch too big she claimed but it wasn’t! Then they wanted another fee for everything. I had no idea that Icelandair had changed to such a bargain basement airline. I was very disappointed.

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

Waiting area on top of stairs before Boarding the bus wasn’t great. Took a long time to load the bus to gate.

The real reason why the flying experience with Icelandair ---was mediocre was because of not being able to enter DC airspace yesterday evening. This obviously was out of your control and do realize this is a safety issue. I did notice---that everything was being done to get us to Washington Dulles and we did arrive at Dulles SAFELY with just a 4 hour delay. Thank you!

Lovely big plane. Excellent take off and landing. Cabin crew were so nice. Flight in time no delays

Because our ABZ-LHR flight was cancelled by BA for reasons they refuse to tell us--not weather--we did not make this flight and were booked on the following day. BA offered no assistance to us on the phone or in the airport, and we had to find a hotel at Heathrow on our own.

Horrible - flight was delayed by 6 hours - we boarded, were made to de-board due some technical fault; aircraft changed; special meals request on new flight - all went awry. Landed in Dulles airport; breezed thru immigration; as Business Class passengers or baggage was delivered almost 90 minutes after landing; air tags indicated the bags were just near the carousel but the unhelpful BA staff - Maria and Ghina refused to give any update - palming it off on some imaginary invisible “manager” despite air tags evidence showing it right there. So about 50-60 passengers waiting and getting infuriatingly impatient for their bags coz one container was not delivered. Finally after much argument by some other passengers Maria condescended to go to the “ramp” and within 5 minutes the baggage was delivered miraculously. Question is why couldn’t she have done it one hour earlier ? Poor poor experience once again on Business Class BA.

Cheap Flight Fares would not provide booking info. I canceled the reservation and we arbitrated with American Express. They provided erroneous info to Amex and it was determined that C.F.F. deserved the price of the ticket. Worse experience I've ever had.

Seating space is appalling. Seats and all surrounding area in "Economy" is built for individuals shorter than 4' 10" and below 120 lbs. Ridiculous. While I'm not expecting fine dining, the food was the worst airplane food that I can recall.

My luggage was lost at the airport but American Airlines contacted me and got it to me the next day.

Business class lounge for my gate was closed and no email was sent, causing me to walk back and forth to different gates, etc for over 20 minutes one way. Flight entertainment was mediocre with very poor choices especially for business class cabin. Original flight was cancelled and rebooking was difficult and no reason given for cancellation.

Very comfortable flight and simple and directed one way and back. Amazing price.

We loved our flight attendant, Emma from Scotland, the meal and entertainment offerings were wonderful, the flight was smooth, and enough leg room to stretch. We would fly with you again!

Los Angeles to London. 25th of April 2026. Business class. I was flying backwards with a complete stranger snoring next to me. In Business class. Males and females, strangers lying next to each other. Seats were backwards. I paid for comfort. I got dizziness and stress.

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

Information on your arrival and departure airports