Cheap flights from Denver to Dublin from $171

In general, January is the cheapest month to fly from Denver to Dublin. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $442. If you’re not able to fly to Dublin in January, then February is your next best option. Flight prices from Denver to Dublin during February average around $458.

The cheapest day to depart from Denver to Dublin is on a Thursday. Travelers who choose to depart for Dublin on a Thursday will often find tickets for as low as $703. Flights from Denver to Dublin on a Tuesday will generally be more expensive and average around $954. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

In the afternoon is the cheapest time of day to fly from Denver to Dublin when you can find flight prices for as low as $659. Flying to Dublin in the afternoon is an ideal time because this is during off-peak travel hours. Flights in the evening are often more expensive with an average ticket price of $844.

Fly from Denver Intl to Dublin for the best Denver Intl - Dublin flight prices

You are more likely to see cheaper flights to Dublin from Denver when booking weeks ahead of your departure date. In general, you can expect to find flights to Dublin for around $648 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Dublin from Denver for as low as $576 on momondo.

There are 3 cabin classes available to choose from on Denver to Dublin flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 59% on your flight if you consider stops on a Denver to Dublin flight.

As of July 2026, prices for Denver to Dublin flights are approximately 22% cheaper when compared to flights at the same time last year.

Delta and Air Canada are the most popular carriers operating from Denver Intl to Dublin

Aer Lingus, United Airlines and Icelandair are the top three most popular airlines that fly to Dublin from Denver according to our data. Aer Lingus is the first choice among our users, with 47% of people opting to fly with this airline when traveling to Dublin. Keep in mind that there are 12 different airlines that fly to Dublin on a routine basis, so you have a few additional options to choose from.

London (LHR) was the most common stop: 29% of momondo users choosing 1-stop flights on this route connected there.

Flights via Paris (CDG) offer the lowest average round-trip price of $391.

Flights connecting via Minneapolis (MSP) have the shortest average one-way travel time: 10h 33m.

Minneapolis (MSP) has the shortest average layover time for this route: 1h 18m.

2 flights are operational daily from Denver to Dublin as of July 2026. The most popular departure time for this route is 8:00PM, with 100% of flights per day taking off in the evening.

The number of flights available between Denver and Dublin is 20 per week as of July 2026. The most frequent departure day is Mon, with 20% of weekly flights leaving on this day.