Cheap flights from Denver, CO to Lisbon, Portugal
Flights starting at $397. Choose between Frontier Airlines, Spirit Airlines, or TAP Portugal to find the best price.
Kiwi-Code uncovers prices airlines don't want you to see.
Use our flexible filters to tailor your search.
Look out for the travel hack star icon for even cheaper fares.
Tips to know when travelling to Lisbon
Cheapest one-way trip | $444 |
---|---|
Cheapest round-trip | $898 |
Includes rare itinerary | Travel hack |
Most popular airline | Frontier Airlines |
Search by stops
Search by carrier
Search by price
Search by departure date
One-way trips
Updated:
Round trips
Updated:

By subscribing you agree to receive offers according to the conditions described in our Privacy Policy.
Check-in for a flight from Denver to Lisbon
Name | Carrier code | IATA Code | Passport needed during booking | Online check-in available |
---|---|---|---|---|
Frontier Airlines | FFT | F9 | No | Opens 24 days before flight Closes 1 hours before flight |
Spirit Airlines | NKS | NK | No | Opens 24 days before flight Closes 1 hours before flight |
TAP Portugal | TAP | TP | Yes | Opens 36 days before flight Closes 1 hours before flight |
easyJet | EZY | U2 | No | Opens 720 days before flight Closes 2 hours before flight |
Ryanair | RYR | FR | No | Opens 24 days before flight Closes 2 hours before flight |
Portugal COVID-19 travel restrictions

Most travelers from Denver, DEN can enter Portugal, but there are restrictions.
Departure
Travel restrictions |
|
---|---|
Visa requirements |
|
Return
Travel restrictions |
|
---|---|
Visa requirements |
|
Information is provided as guidance only and accurate at the time of publishing. Always check government websites and airline materials before booking and traveling.
Learn more about COVID-19 restrictions in Portugal in our dedicated Stories article.
Frequently asked questions
Planning a trip? Thanks to our Virtual Interlining algorithm, we offer billions of route combinations between any A and any B in the world by plane, train, and bus. Find the cheapest routes and best deals for you, as well as the best dates on which to travel.
Explore alternative trips
Flights from Denver
- Flights from Denver to Las Vegas
- Flights from Denver to Los Angeles
- Flights from Denver to Chicago
- Flights from Denver to Minneapolis
- Flights from Denver to Dallas
- Flights from Denver to Washington, D.C.
- Flights from Denver to Orlando
- Flights from Denver to Phoenix
- Flights from Denver to San Francisco
- Flights from Denver to Houston
- Flights from Denver to San Diego
- Flights from Denver to Austin
- Flights from Denver to Atlanta
- Flights from Denver to Paris
- Flights from Denver to Philadelphia
- Flights from Denver to New York
- Flights from Denver to Miami
- Flights from Denver to London
- Flights from Denver to Seattle
- Flights from Denver to Tampa
Flights to Lisbon
- Flights from New York to Lisbon
- Flights from Los Angeles to Lisbon
- Flights from San Francisco to Lisbon
- Flights from Boston to Lisbon
- Flights from London to Lisbon
- Flights from Chicago to Lisbon
- Flights from Tel Aviv to Lisbon
- Flights from Miami to Lisbon
- Flights from Madrid to Lisbon
- Flights from Budapest to Lisbon
- Flights from Orlando to Lisbon
- Flights from Vienna to Lisbon
- Flights from Copenhagen to Lisbon
- Flights from Barcelona to Lisbon
- Flights from Oakland to Lisbon
- Flights from Seattle to Lisbon
- Flights from Paris to Lisbon
- Flights from Brussels to Lisbon
- Flights from Prague to Lisbon
- Flights from Washington, D.C. to Lisbon
Popular routes
- Flights from Los Angeles to Mexico City
- Flights from Cusco to Santiago de Chile
- Flights from Los Angeles to Paris
- Flights from Buenos Aires to Rio de Janeiro
- Flights from New York to Athens
- Flights from Saint Croix to San Juan
- Flights from San Francisco to Los Angeles
- Flights from Los Angeles to Puerto Escondido, Oaxaca
- Flights from Fort Lauderdale to Indianapolis
- Flights from Orlando to Memphis
- Flights from Las Vegas to Santa Ana
- Flights from Los Angeles to Boston
- Flights from Boston to Austin