Price observed over the last 3 months for a round trip.
Compare all flight tickets and find cheap flights from Denver to Lisbon
The cheapest flights right now
Denver – Lisbon
Outbound – Nov 10, 2026
1 stop
11h 10m IAD
Return – Nov 22, 2026
2 stops
16h 15m EWR
IAD
$892
today
Denver – Lisbon
Outbound – Nov 10, 2026
1 stop
11h 10m IAD
Return – Nov 22, 2026
2 stops
16h 15m EWR
IAD
$884
2 days ago
Denver – Lisbon
Outbound – Nov 9, 2026
1 stop
13h 10m IAD
Return – Nov 22, 2026
1 stop
14h 10m IAD
$883
today
Denver – Lisbon
Outbound – Nov 10, 2026
1 stop
11h 10m IAD
Return – Nov 22, 2026
1 stop
14h 10m IAD
$880
2 days ago
* Prices are in USD per passenger, including taxes, for a round trip. Prices are based on searches carried out within the last 72 hours. Please note that availability and ticket prices are subject to change and should not be considered as the final price quoted.
Cheapest flight tickets
$510
Average price of a round trip
$655
Average flight ticket price recorded over the last 3 months for a round trip.
Flight duration
16h15
A flight from Denver to Lisbon takes on average 16h15.
Best time
August
According to user searches, the ideal month to go to Lisbon is August.
Tips for finding a cheap flight from Denver to Lisbon
Check out our tips for booking your flight to Lisbon (Portugal) from Denver (USA) at the cheapest possible price.
Usually, the cheapest month to pick up a ticket on this route is November, with an average flight ticket price of $655 (calculation over the last two years). The most touristic season corresponds to the months of May, November and October.
For the cheapest flights, it is advisable to buy your ticket at least 42 days before the departure date.
The airline offering the cheapest flight tickets is Icelandair. A ticket from the airline Icelandair to Lisbon costs on average $545.
The airlines that offer the most flights are .
Price of flight tickets from Denver to Lisbon
Here is some information and tips to know before booking your flight:
- Flight ticket prices range from $510 to $1075
- The average price of a flight ticket is about $655
- Prices are lowest for stays in the month of November
- The month in which booking a ticket is cheaper is: October
info departure city :
Denver, USA
airports :
Denver International Airport (DEN)
Rocky Mountain Airport (BJC)
Centennial Airport (APA)
local time :
Denver is a city in the country USA, the time zone is [[timezone]]. In Denver, it is currently {fromLocalTime}, the temperature is on average 10°C, with a minimum of 5°C and a maximum of 16°C.
The city of Denver has 3 airport(s): Denver, Rocky Mountain and Centennial
destination info :
Lisbon, Portugal
airport :
Lisbon-Humberto Delgado Airport (LIS)
local time :
Lisbon is in the country Portugal, the time zone is [[timezone]]. In Lisbon, it is currently {toLocalTime}, the temperature is on average 20°C, with a minimum of 18°C and a maximum of 23°C.
The city of Lisbon has 1 airport(s): Lisbon-Humberto Delgado
Useful info about Lisbon
What is the least touristic period to go to Lisbon?
If you want to visit Lisbon during the least touristic period, choose the month of August.
What is the most popular time to travel to Lisbon?
In Lisbon, the most popular month is May. It is during this period that the prices offered by airlines are also the highest.
When should I book my flight from Denver to Lisbon?
According to our data, it is recommended to book your flight 42 days before your departure. If you book your flight ticket 7 weeks before your departure, you may find a price below average. You can also choose morning flights that are 15% cheaper than afternoon and evening flights. The cheapest day to book a flight from Denver to Lisbon is Saturday.
What are the arrival and destination airports when traveling between Denver and Lisbon?
When you leave, you can leave from Denver, and you will arrive at Lisbon-Humberto Delgado.
How to reach Denver airport from the city centre?
The airport Denver is located 34 km, Rocky Mountain is located 21 km or Centennial is located 21 km from the city centre. You can access it by using public transportation, taking a taxi, or renting a car.
Are there other means of transportation to go from Denver to Lisbon?
Airplane is the only means of transportation listed on Liligo for this journey.
Are there big differences in weather between Denver and Lisbon?
In summer, the average temperature is 21°C in Lisbon and 22°C in Denver. The average rainfall in summer is 6 mm in Lisbon and 50 mm in Denver. In summer, it is warmer in Denver and it rains less in Lisbon. In winter, it is colder in Lisbon and it rains more in Lisbon.
