DEN

€314 Find cheap flights to Denver

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Denver departing on 31/1. 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
0 bags

Search 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 for flights to Denver, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to Denver, as well as popular online travel agencies
In the last 7 days, travellers have searched 47,107,125 times on KAYAK, and here's why:

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Cheap flight deals to Denver

 
These are the cheapest deals for flights to Denver currently on KAYAK along with options from the most popular airlines KAYAK users selected for this route. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent return flight deals to Denver

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Ireland to Denver.

Recent one-way flight deals to Denver

Only flying one-way? Below are some of the best one-way flight deals from Ireland to Denver found on KAYAK recently.

Recent last-minute flight deals to Denver

Leaving soon but still want a bargain? Check out these latest deals for last minute flights from Ireland to Denver.

Recent direct flight deals to Denver

The latest deals for direct flights from Ireland to Denver so you can sit back and relax without the need for a layover.

Cheap bus & train deals to Denver

Find recent round-trip train or bus tickets from Ireland to Denver.

All round-trip flight deals to Denver

The cheapest plane tickets to Denver found on KAYAK recently.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
10:20 - 23:31DUB-DEN
20h 11m2 stops
06:50 - 09:20DEN-DUB
43h 30m2 stops
€526Scandinavian Airlines
Find Deal
Sat, 11 Jan - Fri, 24 Jan
10:10 - 23:31DUB-DEN
44h 21m2 stops
06:50 - 11:40DEN-DUB
45h 50m2 stops
€538Scandinavian Airlines
Find Deal
Sun, 12 Jan - Wed, 22 Jan
08:40 - 15:25DUB-DEN
13h 45m1 stop
17:30 - 17:00DEN-DUB
16h 30m1 stop
€671British Airways
Find Deal
Fri, 6 Dec - Tue, 10 Dec
20:30 - 15:25DUB-DEN
25h 55m1 stop
17:30 - 17:00DEN-DUB
16h 30m1 stop
€675British Airways
Find Deal
Mon, 23 Dec - Tue, 31 Dec
09:00 - 16:38DUB-DEN
14h 38m1 stop
13:30 - 10:05DEN-DUB
13h 35m2 stops
€691United Airlines
Find Deal
Wed, 4 Dec - Sat, 14 Dec
11:30 - 18:05DUB-DEN
13h 35m1 stop
15:40 - 10:15DEN-DUB
11h 35m1 stop
€704Icelandair
Find Deal
Sun, 12 Jan - Wed, 22 Jan
09:00 - 16:38DUB-DEN
14h 38m1 stop
13:30 - 10:05DEN-DUB
13h 35m2 stops
€716United Airlines
Find Deal
Wed, 4 Dec - Tue, 17 Dec
15:25 - 18:10DUB-DEN
9h 45mdirect
19:55 - 11:30DEN-DUB
8h 35mdirect
€730Aer Lingus
Find Deal
Fri, 11 Apr - Fri, 18 Apr
15:25 - 18:10DUB-DEN
9h 45mdirect
19:55 - 11:30DEN-DUB
8h 35mdirect
€731Aer Lingus
Find Deal
Fri, 11 Apr - Fri, 18 Apr
11:30 - 23:04DUB-DEN
18h 34m2 stops
15:40 - 10:15DEN-DUB
11h 35m1 stop
€735Icelandair
Find Deal
Mon, 3 Mar - Fri, 7 Mar
11:00 - 09:12DUB-DEN
29h 12m2 stops
€314
Find Deal
Fri, 31 Jan
20:00 - 07:56DUB-DEN
42h 56m3 stops
€318
Find Deal
Thu, 16 Jan
11:30 - 18:05DUB-DEN
13h 35m1 stop
€537Icelandair
Find Deal
Thu, 30 Jan
11:30 - 18:05DUB-DEN
13h 35m1 stop
€538Icelandair
Find Deal
Tue, 4 Feb
08:40 - 21:25DUB-DEN
19h 45m2 stops
€591British Airways
Find Deal
Thu, 30 Jan
08:40 - 15:25DUB-DEN
13h 45m1 stop
€612British Airways
Find Deal
Mon, 3 Feb
07:40 - 15:25DUB-DEN
14h 45m1 stop
€690American Airlines
Find Deal
Thu, 2 Jan
07:40 - 15:25DUB-DEN
14h 45m1 stop
€691American Airlines
Find Deal
Thu, 2 Jan
04:25 - 22:59DUB-DEN
25h 34m2 stops
€739TAP AIR PORTUGAL
Find Deal
Wed, 29 Jan
04:25 - 21:45DUB-DEN
48h 20m2 stops
€1,480TAP AIR PORTUGAL
Find Deal
Wed, 1 Jan
15:25 - 18:10DUB-DEN
9h 45mdirect
19:55 - 11:30DEN-DUB
8h 35mdirect
€731Aer Lingus
Find Deal
Fri, 11 Apr - Fri, 18 Apr
10:20 - 23:31DUB-DEN
20h 11m2 stops
06:50 - 09:20DEN-DUB
43h 30m2 stops
€526Scandinavian Airlines
Find Deal
Sat, 11 Jan - Fri, 24 Jan
10:10 - 23:31DUB-DEN
44h 21m2 stops
06:50 - 11:40DEN-DUB
45h 50m2 stops
€538Scandinavian Airlines
Find Deal
Sun, 12 Jan - Wed, 22 Jan
10:10 - 23:31DUB-DEN
44h 21m2 stops
06:50 - 11:40DEN-DUB
45h 50m2 stops
€540Scandinavian Airlines
Find Deal
Sun, 12 Jan - Wed, 22 Jan
11:00 - 09:22DUB-DEN
29h 22m2 stops
15:40 - 10:15DEN-DUB
11h 35m1 stop
€561
Find Deal
Mon, 13 Jan - Mon, 27 Jan
16:55 - 17:40DUB-DEN
31h 45m1 stop
19:35 - 13:40DEN-DUB
35h 05m1 stop
€602Turkish Airlines
Find Deal
Mon, 9 Dec - Sun, 22 Dec
16:55 - 17:40DUB-DEN
31h 45m1 stop
19:35 - 13:40DEN-DUB
35h 05m1 stop
€603Turkish Airlines
Find Deal
Mon, 3 Mar - Fri, 7 Mar
11:00 - 09:22DUB-DEN
29h 22m2 stops
15:40 - 10:15DEN-DUB
11h 35m1 stop
€614
Find Deal
Mon, 13 Jan - Sun, 26 Jan
05:55 - 16:12DUB-DEN
17h 17m2 stops
14:50 - 15:40DEN-DUB
17h 50m1 stop
€637
Find Deal
Thu, 5 Dec - Sun, 8 Dec
11:30 - 20:05DUB-DEN
15h 35m1 stop
14:50 - 15:40DEN-DUB
17h 50m1 stop
€642
Find Deal
Thu, 5 Dec - Sun, 8 Dec
16:50 - 17:40DUB-DEN
31h 50m1 stop
20:35 - 09:55DEN-DUB
31h 20m1 stop
€644Turkish Airlines
Find Deal
Thu, 6 Mar - Sun, 23 Mar

Flights to Denver - Travel Insights & Trends

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

What is the cheapest day to fly to Denver?

The average price of all flights to Denver clicked on KAYAK for each day over the last 12 months.
Based on KAYAK data, the cheapest day to fly to Denver is Friday where tickets can be as cheap as €711. On the other hand, the most expensive day to fly is Wednesday, where prices are €808 on average.

What is the cheapest month to fly to Denver?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights 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 to Denver is February, where tickets cost €644 on average for one-way flights. On the other hand, the most expensive months are July and June, where the average cost of tickets from Ireland is €913 and €890 respectively. For return trips, the best month to travel is February with an average price of €644.

What is the cheapest time of day to fly to Denver?

The average price for all flights to Denver depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.
The cheapest time of day to fly to Denver is generally in the morning, when flights cost €703 on average. The most expensive time of day to fly to Denver is generally in the evening, which is peak travel time and where the average cost of a ticket is €826.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights to Denver, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price, you should book around 0 weeks before departure. For the absolute cheapest price, our data suggests you should book 168 days before departure.

Good to know

Low season

January

High season

June

Cheapest flight

€314
Best time to beat the crowds (11% less expensive on average)
Most popular time to fly (21% more expensive on average)
Flight from Dublin to Denver

When to book flights to Denver

Are your dates flexible? Find out the best times to travel 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. The information is for flights to Denver based on your location. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs - booking Denver flights

  • How far is Denver Intl Airport from central Denver?

    You’ll need to travel 30 km to reach the Denver city centre from Denver Intl Airport.

  • What is the name of Denver’s airport?

    There is only 1 airport in Denver, called Denver Intl Airport (DEN). It can also be referred to as Denver or Denver Intl.

  • How much is a flight to Denver?

    On average, a flight to Denver costs €882. The cheapest price found on KAYAK in the last 2 weeks cost €719 and departed from Dublin Airport.

  • How does KAYAK find such low prices on flights 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 to Denver.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Denver is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights to Denver?

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

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight 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 up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to Denver

  • Looking for cheap airfare to Denver? 25% of our users found return tickets to Denver for the following prices or less: From Dublin €3,224
  • Book at least 1 week before departure in order to get a below-average price.
  • High season is considered to be June, July and August. The cheapest month to fly from Ireland is February.
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Denver flight deals.
See more tips

Prefer to fly direct to Denver Intl?

Find which airlines fly direct to Denver Intl Airport, which days they fly and book direct flights.

Direct departures

Ireland to Denver Intl

Monday

ANA, Aer Lingus, Aeromexico, +60 more

ANA, Aer Lingus, +61 more

Tuesday

ANA, Aer Lingus, Aeromexico, +59 more

ANA, Aer Lingus, +60 more

Wednesday

ANA, Aer Lingus, Aeromexico, +59 more

ANA, Aer Lingus, +60 more

Thursday

ANA, Aer Lingus, Aeromexico, +61 more

ANA, Aer Lingus, +62 more

Friday

ANA, Aer Lingus, Aeromexico, +60 more

ANA, Aer Lingus, +61 more

Saturday

ANA, Aer Lingus, Aeromexico, +62 more

ANA, Aer Lingus, +63 more

Sunday

ANA, Aer Lingus, Aeromexico, +61 more

ANA, Aer Lingus, +62 more

See more direct flights

Direct returns

Denver Intl to Ireland

Monday

ANA, Aer Lingus, Aeromexico, +60 more

ANA, Aer Lingus, +61 more

Tuesday

ANA, Aer Lingus, Aeromexico, +59 more

ANA, Aer Lingus, +60 more

Wednesday

ANA, Aer Lingus, Aeromexico, +59 more

ANA, Aer Lingus, +60 more

Thursday

ANA, Aer Lingus, Aeromexico, +61 more

ANA, Aer Lingus, +62 more

Friday

ANA, Aer Lingus, Aeromexico, +60 more

ANA, Aer Lingus, +61 more

Saturday

ANA, Aer Lingus, Aeromexico, +62 more

ANA, Aer Lingus, +63 more

Sunday

ANA, Aer Lingus, Aeromexico, +61 more

ANA, Aer Lingus, +62 more

See more direct flights
See more direct flights

Top 4 airlines flying to Denver

 
See real verified KAYAK customer reviews for airlines flying to Denver. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Ireland to Denver. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with 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.
7.4
United AirlinesOverall score based on 9171 reviews
7.1Entertainment
7.3Comfort
8.1Crew
7.7Boarding
6.7Food
Airline reviews

It was a good flight. Nothing comes to mind about how it could have been better. It was a newer plane, seemed like a great upgrade from your older ones. Staff was very good as well.

10.0 ExcellentJason, Nov 2024MSO - DEN
Read more United Airlines reviews

It was a good flight. Nothing comes to mind about how it could have been better. It was a newer plane, seemed like a great upgrade from your older ones. Staff was very good as well.

The food for long haul was poor compared to Singapore airlines economy. Pasta plain with tomato sauce . Singapore airlines give me Hagen dash small ice cream cup it was great. The choices of dinner course Singapore air also much better The crew mostly friendly. The economy seat are as expected.

The plane was clean. The staff was excellent. The flight attendants were very good. Enjoyable flight. Overall. The seats in the back are too small but, will always be.

I was at the back of the plane with earphones, and I could still hear the chatty flight attendants; I wasn't able to sleep at all.

Flight was 3 1/2 hour delayed with no credit or meal vouchers

United airlines was top for my last trip in every way

late departure due to some unspecified issue with ventilating the cabin. They got it running but it was FREEZING for the whole flight. I asked for a blanket but they didn't provide one. They could not turn up the heat. it was quite miserable.

Horrible; seating was atrocious - inadequate leg room and seat width tight even for a small individual. Profits shouldn’t be everything!

Liked that we left on time for each flight. Snacks not the best, but we're okay.

It was fine. The flight attendant appeared to be in a bad mood but everything was fine.

Icelandair flight was excellent. The checkin and security arrangements for Saga Premium passengers at Newark was very poor - our checkin opened much later than the normal and our security queue simply led us to the back of the normal queue. Someone was having a laugh surely!

Never took flight. See previous comment on trip from Boston to Reykjavik. Used a different airline that i had to find and book.

One of the worst airlines I ever flew. Boarding is a disaster, they are always late, the planes are overly crowded. Everyone on my flight lost their connection because they were 2h late. Reykjavik is also not the best airport out there.

My only area of issue was the flight was rather warm and the knobs for cool air didn't allow much cool air to come through. Everything else was great.

Been travelling for 2mo. And when you meet flight Attendants that love their jobs you can just tell. And makes flying with them worth another flight in the future!!

Everything was great! My only critique is 25 euro for wifi is wild, but I get it

Good, but I feel there should be a separate boarding line for seniors

Plane left an hour late and missed our connecting flight. Your service center was closed ao Alaska Airlines could not change the ticket. Thus we missed the chance to get out that night to San Jose. This is a major operational blunder.

Well! They got me as far as Iceland, let me wait around at the airport since my next flight had either left or canceled, finally gave me my luggage, and sent me to wait quite some time with seven other people for a ride to a hotel. At the hotel we got a chef's salad, a nice room for the night which unfortunately had feather pillows and duvet (allergies), a really great and spectacular buffet for breakfast (small but stunning), taxis back to the airport for the 9:30 Delta flight back to Minneapolis. The Delta flight has free food and liquor included which Icelandair does not. All in all, it falls far short of my worst ever United flight to SGN. Icelandair did change my reservation after my roommate tested positive for COVID and we canceled our plans to travel around Iceland, but the charges were fairly hefty. I had trouble contact Kayak's agents to discuss changing my reservations and finally contacted Icelandair who changed them. (I used their contact form and put in several requests for call backs.) Of course, they called just after I made the change with Icelandair.

Flight was delayed. They did a terrible job rebooking me. Agent on the ground was useless. The partner airline who ran the plane was able to help me but Iceland air was useless

Friendly crew who apologised and explained reason for delay. Good on board service. Rather cramped seating. Late departure.

Very sad, couldn't stop crying. Was an hour delay in Ireland and when we got to Canada the flight was boarded and couldn't get on. Was the last flight of the day. Now in a hotel waiting on a stand by.I have to got o work, so I'll go first available while my son stays in the hotel til one's available

Was not aware that Aer Lingus was like the cut-rate services in the states, with no food or beverage (other then 3.50 Euro coffee) and no screens for entertainment. Was a great flight, but not much in the way of services.

Both flights late. Almost missed connecting flight and flight staff not willing to help expedite us off the plane.

during a very rough flight, I was forced to sit in a last row seat, fell asleep, and was forced to return to my assigned seat after the turbulence. The stewardess then used that seat to sleep.

I didn’t realize Aer Lingus was a “nickel and dime” kind of airline where you had to separately buy all the amenities you wanted. The push to purchase duty-free beauty products was off-putting. And our row had the least amount of leg room I’ve ever dealt with on a flight.

We couldn't talk to aer lingus we had issues with the flight change and aer lingus made us talk to kayak

Very pleasant staff, there was some turbulence but the captain was very apologetic and gave notice where possible.

Flight was great. Had to wait almost 100 minutes for luggage (some problem in the delivery). This may not be an Aer Lingus problem, but an SFO problem.

Amenity kits were never handed out. There was zero friendliness and assistance by crew. Food was uneatable. One drink was offered and no wine, with dinner or before or after. Cocktails and beverages were not encouraged and when I asked for water, none was given. Poorest, most cramped business class flight I’ve ever been on.

Flight was fine, food better than anticipated and flight attendants were helpful and friendly.

Our headphone plug is broken, we can not enjoy our entertainment, especially traveling with 5 year old who like to watch movie

It was good but I wished if they could have sign do not disturb if we did not wanted any meals . I was tired and slept through the entire flight and woke up just before landing .being hungry Too late to ask for something to eat before exiting the flight . Left feeling hunger 🙁

Pleasant, attentive and efficient flight attendants. Boarding process and seat selection easy. No internet on transatlantic flight. Extremely uncomfortable, rigid seat.

The seats of the Boeing 787-10 Dreamliner were ridiculously uncomfortable. I was on 10 flights during this vacation and this plane was super uncomfortable both times I was on one whereas all of the others were perfectly fine. Additionally, these planes do not have any air vents that passengers can control, the climate is entirely controlled by the crew which made for an extremely uncomfortable temperature for the duration. The flight attendants tried to make everyone happy with the temperature but several people you could tell were excessively warm and just wanted a bit of airflow.

Don't fly thru London Awful and huge U need 4 hrs to transfer cuz u have to tale buses to and fro from airplanes Bad business

Staff with low service level, forgetful. Temperature at 15 C and after asking twice to raise the temperature the crew did nothing.

I was disappointed with the quality of the food for an international flight also I wasn't given a toiletry bag which is customary in international flights.

They had about 20-25 people overbooked. Including me. Why is this?? I was put on a flight to NC an hour later with a 4 hour layover. I was supposed to be home at 1045am instead i was home at 7:30pm. An extra day to pay for dog care.

Boarding is not controlled as groups called was not enforced

Book Cheap Denver Plane Tickets

Recent return flight deals

 
These are the cheapest return flights to Denver found on KAYAK in the last 72 hours.
11/1Sat
2 stopsScandinavian Airlines
20h 11mDUB-DEN
24/1Fri
2 stopsScandinavian Airlines
43h 30mDEN-DUB
€526
12/1Sun
2 stopsScandinavian Airlines
44h 21mDUB-DEN
22/1Wed
2 stopsScandinavian Airlines
45h 50mDEN-DUB
€538
6/12Fri
1 stopBritish Airways
13h 45mDUB-DEN
10/12Tue
1 stopBritish Airways
16h 30mDEN-DUB
€671
23/12Mon
1 stopBritish Airways
25h 55mDUB-DEN
31/12Tue
1 stopBritish Airways
16h 30mDEN-DUB
€675
4/12Wed
1 stopUnited Airlines
14h 38mDUB-DEN
14/12Sat
2 stopsUnited Airlines
13h 35mDEN-DUB
€691
12/1Sun
1 stopIcelandair
13h 35mDUB-DEN
22/1Wed
1 stopIcelandair
11h 35mDEN-DUB
€704
4/12Wed
1 stopUnited Airlines
14h 38mDUB-DEN
17/12Tue
2 stopsUnited Airlines
13h 35mDEN-DUB
€716
11/4Fri
directAer Lingus
9h 45mDUB-DEN
18/4Fri
directAer Lingus
8h 35mDEN-DUB
€730
11/4Fri
directAer Lingus
9h 45mDUB-DEN
18/4Fri
directAer Lingus
8h 35mDEN-DUB
€731
3/3Mon
2 stopsIcelandair
18h 34mDUB-DEN
7/3Fri
1 stopIcelandair
11h 35mDEN-DUB
€735

Search by stops

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Recent one-way flight deals

 
Only flying one-way? Below are some of the best deals for one-way flights to Denver found on KAYAK in the last 72 hours.
31/1Fri
2 stops
29h 12mDUB-DEN
€314
16/1Thu
3 stops
42h 56mDUB-DEN
€318
30/1Thu
1 stopIcelandair
13h 35mDUB-DEN
€537
4/2Tue
1 stopIcelandair
13h 35mDUB-DEN
€538
30/1Thu
2 stopsBritish Airways
19h 45mDUB-DEN
€591
3/2Mon
1 stopBritish Airways
13h 45mDUB-DEN
€612
2/1Thu
1 stopAmerican Airlines
14h 45mDUB-DEN
€690
2/1Thu
1 stopAmerican Airlines
14h 45mDUB-DEN
€691
29/1Wed
2 stopsTAP AIR PORTUGAL
25h 34mDUB-DEN
€739
1/1Wed
2 stopsTAP AIR PORTUGAL
48h 20mDUB-DEN
€1,480

Search by stops

Search by airline

Search by price

Everything you need to know for your flight to Denver

Information on the airport you'll fly into in Denver

Not what you’re looking for? Find thousands of other hotels, flights, car hires and package deals with KAYAK.