The cheapest times to fly from DEN to DUB are

  • January 1st to April 1st
  • May 14th to June 10th
  • October 22nd to December 16th

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from DEN to DUB is mid January. Prices can be as high as $1080 for Saturday flights during late July, or as low as $435 for Tuesday flights around mid January.


When to Fly to Dublin

Flying from Denver, CO (DEN) to Dublin (DUB) will usually cost between $458 to $918 per person if booking more than four weeks in advance. On average the very cheapest time to fly is mid January with an average ticket price of $488. Due to high demand the most expensive time to fly is late July, with an average price of $950. Planning your trip to low-cost times can easily save you $462 on economy flights and even more on first-class flights. Generally, any price below $706 can be considered a good price for a round-trip DEN to DUB flight.

See below for a graph of average weekly prices for the DEN to DUB route. All prices are for round-trip tickets in USD.

DEN to DUB Flight Prices

Compared to other flights, the DEN to DUB flight is cheaper than the average and costs less than the average flight leaving from Denver. The average price per mile (for a direct flight) is $0.1, which is far below average.


Flight Prices by Day of the Week

Tuesday is usually the cheapest day to depart and return on this flight. Saturdays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $108 (15%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $608. Return trip prices are from the DUB to DEN flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from DEN to DUB can generally find a 1-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 8 hour 52 minutes may not be realistic.


Flight Hacking DEN to DUB

Flight hacking is when you book two tickets instead of a layover, sometimes with different airlines. You will need to either bring only a carry-on bag (highly recommended) or leave yourself plenty of time to go through security again. Flight hacking is completely allowed, but airlines don’t always tell you the cheapest way to get from DEN to DUB — but Champion Traveler does!

Hack #1: London (DEN > LHR > DUB)

  • Price for both tickets: $653
  • Average savings: $53 (7.51%)

See DEN to LHR flights

Hack #2: London (DEN > LGW > DUB)

  • Price for both tickets: $664
  • Average savings: $42 (5.88%)

See DEN to LGW flights


Flight Questions Answered

Still have questions about flying from DEN to DUB? We’ve got answers.

Which airlines fly this route?

You can find 28 major airlines flying this route most often: Aer Lingus, Air Canada, Air France, Air Transat, Alaska, American, Austrian, British Airways, Brussels Airlines, Condor, Delta, Finnair, Flybe, Frontier, Iberia, Icelandair, JetBlue, KLM, Lufthansa, Norwegian, Norwegian Air International, Porter Airlines, SAS, SWISS, Tap Air Portugal, Turkish Airlines, United, WestJet, and potentially more during busy seasons.

How far away is it from Dublin Airport to Denver International Airport?

The distance between the two airports is roughly 4379 miles or 7047 kilometers.

How long does it take to fly from DEN to DUB?

The real-world flight time for a nonstop DEN to DUB flight is about 8 hour 52 minutes.

How many flights go between Denver, CO and Dublin?

It depends on the day of the week and the date, but a typical day might have around 113 available flights from DEN to DUB.


Airport Location Info


Departing Airport

Origination code DEN
Origination airport name Denver International Airport
City Denver, CO
Country the United States
Latitude 39.9
Longitude -104.7

Return Airport

Destination code DUB
Destination airport name Dublin Airport
City Dublin
Country Ireland
Latitude 53.4
Longitude -6.3


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.