Aer Lingus Flights from Denver to Portugal from $906.95*

Deals on flights from Denver to Portugal*

There are no fares that match your filter criteria. Please adjust your filters.

* Fares displayed include air transportation charges, taxes and fees. Fares displayed have been collected within the last 24 hours and may no longer be available at time of booking. Fares are economy class and may include connections with our partner airlines. Modifying this information may result in a different fare. Additional baggage fees and charges for optional products and services may apply.

Aer Lingus Plane Image

Book Denver to Portugal flight deals*

Known for its great maritime explorers and Moorish architecture, Portugal’s Mediterranean climate and varied landscapes draw visitors from around the world. Book your flight to Portugal with Aer Lingus and experience Portugal’s deep heritage and culture for yourself.

Lisbon Historic Sites

Step back in time to the Age of Discovery at the Monastery of the Hieronymites and the Tower of Belém. Learn about Portugal’s famed sailors, while you look for armillary spheres and twisted ropes carved onto the ceiling. For breath-taking views of the Tagus River, climb the battlements of the 11th century Moorish Castelo Sao Jorge. See artefacts from the castle site or watch a medieval re-enactment. Then, walk around the surrounding historic neighbourhood of Alfama, and get lost in its labyrinthine streets. Don’t miss the Lisbon Cathedral while there, as it is the oldest church in the city. 

Faro Beaches

Faro’s main beach, Praia da Ilha de Faro, is a long stretch of sand, west of the city. The area is well developed and features bars, restaurants and hotels. The beach is known for its nightlife and gets very lively in the summer. For a more secluded experience, visit the Praia da Barreta Mar, also known as the Ilha Deserta. While there, look out for black-tailed godwits, ringed plovers, and little snipes, as the Ria Formosa National Park where the island is located, is a bird sanctuary.

Email Sign Up
Aer Lingus Newsletter
Sign Up and Save

Be first to receive current offers

Learn about new and exciting destinations

Get the latest travel news and more

Best Deals for Denver to Portugal*

Best Deals for Denver to Portugal*
From
To
Fare Type
Dates
Price
FromDenver (DEN)ToLisbon (LIS)Roundtrip*
/
Economy
22 May 2025 - 4 Jun 2025

From

$917.49*

Seen: 6 hrs ago

* Fares displayed include air transportation charges, taxes and fees. Fares displayed have been collected within the last 24 hours and may no longer be available at time of booking. Fares are economy class and may include connections with our partner airlines. Modifying this information may result in a different fare. Additional baggage fees and charges for optional products and services may apply.