DEN

€374 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 2/2. 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 41,299,237 times on KAYAK, and here's why:

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Cheap Flight Deals to Denver

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights 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.

Recent return flight deals from Ireland to Denver

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Ireland to Denver.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
10:20 - 23:00DUB-DEN
19h 40m2 stops
12:20 - 11:40DEN-DUB
40h 20m2 stops
€494Scandinavian Airlines
Find Deal
Sat, 18 Jan - Mon, 3 Feb
12:30 - 23:00DUB-DEN
41h 30m2 stops
06:50 - 11:40DEN-DUB
45h 50m2 stops
€522Scandinavian Airlines
Find Deal
Mon, 13 Jan - Mon, 20 Jan
11:30 - 18:05DUB-DEN
13h 35m1 stop
16:40 - 10:15DEN-DUB
11h 35m1 stop
€615Icelandair
Find Deal
Fri, 21 Feb - Mon, 10 Mar
11:30 - 18:05DUB-DEN
13h 35m1 stop
15:40 - 10:15DEN-DUB
11h 35m1 stop
€620Icelandair
Find Deal
Sat, 18 Jan - Mon, 3 Feb
08:40 - 15:25DUB-DEN
13h 45m1 stop
17:30 - 19:35DEN-DUB
19h 05m1 stop
€623British Airways
Find Deal
Mon, 20 Jan - Mon, 3 Feb
08:40 - 19:16DUB-DEN
17h 36m2 stops
17:30 - 12:35DEN-DUB
12h 05m1 stop
€629British Airways
Find Deal
Mon, 20 Jan - Mon, 3 Feb
15:25 - 18:10DUB-DEN
9h 45mdirect
19:55 - 11:30DEN-DUB
8h 35mdirect
€722Aer Lingus
Find Deal
Sun, 1 Jun - Sat, 14 Jun
09:00 - 18:25DUB-DEN
16h 25m2 stops
09:40 - 07:00DEN-DUB
14h 20m2 stops
€741United Airlines
Find Deal
Mon, 13 Jan - Sun, 26 Jan
12:30 - 19:28DUB-DEN
13h 58m1 stop
07:45 - 07:05DEN-DUB
16h 20m2 stops
€770United Airlines
Find Deal
Fri, 18 Apr - Thu, 24 Apr
09:45 - 16:30DUB-DEN
13h 45m1 stop
19:55 - 11:30DEN-DUB
8h 35mdirect
€778Aer Lingus
Find Deal
Sat, 26 Apr - Thu, 1 May

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 round-trip 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 Sunday where round-trip tickets can be as cheap as €717. On the other hand, the most expensive day to fly is Wednesday, where round-trip prices are €810 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 €641 on average for return flights. On the other hand, the most expensive months are July and June, where the average cost of tickets from Ireland is €922 and €899 respectively. For one-way flights, the best month to travel is February with an average price of €641.

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

The average price for all round-trip 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 round-trip flights cost €712 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 €809.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights 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, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.

Good to know

Low season

January

High season

June

Cheapest flight

€374
Best time to beat the crowds (8% less expensive on average)
Most popular time to fly (20% 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 €903. The cheapest price found on KAYAK in the last 2 weeks cost €702 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 €1,468
  • 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, +58 more

ANA, Aer Lingus, +59 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, +58 more

ANA, Aer Lingus, +59 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 9055 reviews
8.1Crew
7.1Entertainment
7.3Comfort
7.7Boarding
6.7Food
Airline reviews

The reason I don’t fly United. No in seat entertainment for a long flight and inconsistent WiFi and entertainment available from my device.

4.0 OkayChris, Dec 2024FLL - DEN
Read more United Airlines reviews

The reason I don’t fly United. No in seat entertainment for a long flight and inconsistent WiFi and entertainment available from my device.

It was 4 hours late. Almost missed my connecting flight no food or drinks on connecting flight. Overall terrible experience

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!

Again, lines for boarding are a problem in iceland. The flight itself was fine and very smooth. No complaints. We would definitely fly icelandair again.

take snacks and food. purchase options in flight are not great

Had a screaming child next to us. Not the airline’s fault but still annoying.

Highly disorganized company, poor customer service. Packed seats on a 737 for a trans-atlantic 9 hour flight. Greedy company policies, no meal or snack provided for 9 hour flight.

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.

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

There was a very drunk and disruptive passenger who was on the plane, right behind me. He was already drunk before boarding but was still let on the plane. He kept kicking and hitting the back of my chair the entire flight. It was an early morning flight and had zero rest on that leg

Really lovely trip and flight. The flight staff were so accommodating and warm throughout!

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.

Even the carry-ons were not allowed and upon getting down, we had the wait for the longest time for the baggage to put on the jet aisle. We had a short connection which British Airways kept changing and made out entire experience poor. I would never fly BA again.

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

The seats are incredibly uncomfortable. My luggage didn't make it on the flight from London to Nashville.

The plane itself is old and way overcrowded. The crew do a great job of trying to mitigate. It is just uncomfortable for over 8 hours, bearable, but barely. Boarding, and the baggage game, is ludicrous. Why charge extra to check bags when there is not enough room for everyone to "carry-on" and checking is needed? I do not think these issues would be different with other airlines, I believe it is the attitude that squeezes every penny out of each traveler.

Expected a lot better service paying for a business class seat. Seemed to be short on staff and did not get the service I expected.

I flew Club World and was SHOCKED at how totally absent the crew were for the duration of the flight. So much so that we received no drink service other than the post-departure cocktail and that was it. Wasn't even offered tea/coffee and the in-flight attention was so bad that literally minutes before landing the one crew member for our row was scrambling to pick up left-behind water bottles, glassware, trash. And the rest of the crew had already stowed all carts, he was cramming the trash into the lavatory trash can and was stashing the glassware frantically in the galley as we were on final approach. He was so scrambled he left two overhead lockers wide open (that he'd opened) for landing. Unbelievable!

The flight was several times changed. That was inconvenient, to sah the least.

They lost my special meal request and tried to tell me I didn't request it. I had the proof. Then they tried to get me to eat food I can't eat. No apologies

British airways keeps canceling our flights. I won’t be booking any future flights with them

I could not charge my phone the entire night or read my book, as the whole middle isle was without power.

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.
18/1Sat
2 stopsScandinavian Airlines
19h 40mDUB-DEN
3/2Mon
2 stopsScandinavian Airlines
40h 20mDEN-DUB
€494
13/1Mon
2 stopsScandinavian Airlines
41h 30mDUB-DEN
20/1Mon
2 stopsScandinavian Airlines
45h 50mDEN-DUB
€522
21/2Fri
1 stopIcelandair
13h 35mDUB-DEN
10/3Mon
1 stopIcelandair
11h 35mDEN-DUB
€615
18/1Sat
1 stopIcelandair
13h 35mDUB-DEN
3/2Mon
1 stopIcelandair
11h 35mDEN-DUB
€620
20/1Mon
1 stopBritish Airways
13h 45mDUB-DEN
3/2Mon
1 stopBritish Airways
19h 05mDEN-DUB
€623
20/1Mon
2 stopsBritish Airways
17h 36mDUB-DEN
3/2Mon
1 stopBritish Airways
12h 05mDEN-DUB
€629
1/6Sun
directAer Lingus
9h 45mDUB-DEN
14/6Sat
directAer Lingus
8h 35mDEN-DUB
€722
13/1Mon
2 stopsUnited Airlines
16h 25mDUB-DEN
26/1Sun
2 stopsUnited Airlines
14h 20mDEN-DUB
€741
18/4Fri
1 stopUnited Airlines
13h 58mDUB-DEN
24/4Thu
2 stopsUnited Airlines
16h 20mDEN-DUB
€770
26/4Sat
1 stopAer Lingus
13h 45mDUB-DEN
1/5Thu
directAer Lingus
8h 35mDEN-DUB
€778

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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.
2/2Sun
2 stops
29h 12mDUB-DEN
€374
2/2Sun
3 stops
41h 22mDUB-DEN
€376
21/5Wed
1 stopIcelandair
13h 45mDUB-DEN
€459
30/1Thu
1 stopIcelandair
13h 35mDUB-DEN
€475
30/1Thu
2 stopsBritish Airways
19h 45mDUB-DEN
€594
21/5Wed
directAer Lingus
9h 45mDUB-DEN
€610
29/4Tue
1 stopBritish Airways
12h 55mDUB-DEN
€617
4/6Wed
directAer Lingus
9h 45mDUB-DEN
€647
21/5Wed
3 stopsUnited Airlines
19h 14mDUB-DEN
€1,158
21/5Wed
3 stopsUnited Airlines
19h 14mDUB-DEN
€1,159

Search by stops

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Search by price

Last minute flights to Denver

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights to Denver that are departing in the next 10 days.
23/12Mon
multi-stopBritish Airways
25h 55mDUB-DEN
30/12Mon
multi-stopBritish Airways
19h 05mDEN-DUB
€723
23/12Mon
multi-stopBritish Airways
25h 55mDUB-DEN
30/12Mon
multi-stopBritish Airways
13h 07mDEN-DUB
€741
22/12Sun
multi-stopUnited Airlines
15h 56mDUB-DEN
2/1Thu
multi-stopUnited Airlines
19h 00mDEN-DUB
€823
22/12Sun
multi-stopUnited Airlines
14h 40mDUB-DEN
2/1Thu
multi-stopUnited Airlines
19h 00mDEN-DUB
€824
23/12Mon
multi-stopAmerican Airlines
15h 29mDUB-DEN
30/12Mon
multi-stopAmerican Airlines
14h 45mDEN-DUB
€849
22/12Sun
multi-stopUnited Airlines
18h 23mDUB-DEN
2/1Thu
multi-stopUnited Airlines
16h 10mDEN-DUB
€906
22/12Sun
multi-stopDelta
17h 51mDUB-DEN
2/1Thu
multi-stopDelta
18h 20mDEN-DUB
€1,052
23/12Mon
multi-stop
35h 25mDUB-DEN
30/12Mon
multi-stop
36h 45mDEN-DUB
€1,133
22/12Sun
multi-stopAer Lingus
18h 37mDUB-DEN
28/12Sat
multi-stopAer Lingus
20h 31mDEN-DUB
€1,258
22/12Sun
multi-stop
61h 55mDUB-DEN
29/12Sun
multi-stop
56h 55mDEN-DUB
€1,513

Search by stops

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Everything you need to know for your flight to Denver

Information on the airport you'll fly into in Denver

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