£417 Cheap Aer Lingus flights from Dublin to Denver (DUB→DEN)

Scoring cheap one-way Aer Lingus flights from DUB to DEN from £417 on Expedia couldn't be easier — just filter by "Price (lowest to highest)." Or check out our budget-friendly round-trip fares £630 for your next exciting adventure.*

*These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

Search for one-way or return flights to Denver in January or November. You could find a cheap fare with Aer Lingus during these off-season months.

To figure out if there's a direct journey from DUB to DEN with Aer Lingus or any other carriers, use our "Nonstop" filter when looking for tickets.

Aer Lingus flights from Dublin Airport (DUB) to Denver come in to Denver Intl. Airport (DEN). This is the main gateway to this city.

For checked luggage, passengers can take 1 checked-in bag weighing up to 23 kg (50 lbs) with dimensions not exceeding 157 centimetres. You can also travel with 1 cabin bag in the cabin when flying standard economy from DUB to DEN with Aer Lingus. This carry-on must weigh less than 10 kg (22 lbs) and be no larger than 53 centimetres x 38 centimetres x 23 centimetres. Going above these limits can mean extra fees, so check Aer Lingus's baggage allowance rules before packing.

Depending on the ticket type you purchased, a fee generally applies if you change or cancel your booking more than 24 hours after it's been confirmed. To secure plane tickets with more flexibility, select our "Changes included" or "No cancel fee" filter when you look for flights. For additional information on cancelling or changing your reservation, go to "Trips," select your flight and tick "Manage Booking."