Cheap flights from Ireland to Colorado from €423

The cheapest month to fly to Colorado from Ireland is in February. Flight prices, which tend to average around €402, are often lower during this time because this is during the off-season. If you’re not able to fly to Colorado in February, then April is your next best option. Flight prices from Ireland to Colorado during April average around €450.

On average, the least expensive day to fly to Colorado from Ireland is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as €662. However, this price may fluctuate depending on the airline, the season, and holidays. The most expensive day to fly to Colorado is Saturday, with ticket prices averaging around €1,118.

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

You are more likely to see cheaper flights to Colorado from Ireland when booking weeks ahead of your departure date. In general, you can expect to find flights to Colorado for around €636 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Colorado from Ireland for as low as €465 on momondo.

There are 2 cabin classes available to choose from on Ireland to Colorado 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 73% on your flight if you consider stops on a Ireland to Colorado flight.

Delta, Aer Lingus, and Finnair are the most popular carriers operating from Ireland to Colorado

Aer Lingus, American Airlines and Icelandair are the top three most popular airlines that fly to Colorado from Ireland according to our data. Aer Lingus is the first choice among our users, with 48% of people opting to fly with this airline when travelling to Colorado. Keep in mind that there are 6 different airlines that fly to Colorado on a routine basis, so you have a few additional options to choose from.

As of September 2026, 2 flights take off from Ireland and land in Colorado each day. The most common flight departure time for this route is 15:00, with 100% of daily flights taking off in the afternoon.

As of September 2026, there are 20 flights per week flying from Ireland to Colorado. The most common day of the week flights depart is Mon, with 20% of flights taking off on this day.