$439 Find Cheap Flights from Portugal to Colorado - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Portugal to Colorado departing on 9/24. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap Flights from Portugal to Colorado

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Portugal to Colorado that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Portugal to Colorado

Thu, Nov 19 - Mon, Nov 23
Icelandair Logo
2:00 pm - 6:00 pm
LIS
-
DEN
35h 00m
1 stop
Icelandair Logo
3:40 pm - 12:50 pm
DEN
-
LIS
14h 10m
1 stop
$698Icelandair
Fri, Sep 4 - Fri, Sep 18
Aer Lingus Logo
10:15 pm - 6:15 pm
LIS
-
DEN
27h 00m
1 stop
Aer Lingus Logo
8:00 pm - 9:35 pm
DEN
-
LIS
18h 35m
1 stop
$847Aer Lingus
Fri, Sep 4 - Fri, Sep 18
Aer Lingus Logo
10:15 pm - 6:15 pm
LIS
-
DEN
27h 00m
1 stop
Aer Lingus Logo
8:00 pm - 9:35 pm
DEN
-
LIS
18h 35m
1 stop
$853Aer Lingus
Fri, Sep 4 - Fri, Sep 18
Aer Lingus Logo
10:15 pm - 6:15 pm
LIS
-
DEN
27h 00m
1 stop
Aer Lingus Logo
8:00 pm - 9:35 pm
DEN
-
LIS
18h 35m
1 stop
$855Aer Lingus
Sat, Sep 5 - Fri, Sep 18
Aer Lingus Logo
10:15 pm - 6:15 pm
LIS
-
DEN
27h 00m
1 stop
Aer Lingus Logo
8:00 pm - 9:35 pm
DEN
-
LIS
18h 35m
1 stop
$867Aer Lingus
Tue, Oct 13 - Sat, Jan 9
Multiple Airlines Logo
8:25 am - 9:48 am
LIS
-
DEN
32h 23m
2 stops
Multiple Airlines Logo
3:40 pm - 12:50 pm
DEN
-
LIS
14h 10m
1 stop
$901Multiple Airlines
Tue, Oct 13 - Wed, Jan 13
Multiple Airlines Logo
8:25 am - 9:48 am
LIS
-
DEN
32h 23m
2 stops
Multiple Airlines Logo
3:40 pm - 12:50 pm
DEN
-
LIS
14h 10m
1 stop
$901Multiple Airlines
Thu, Aug 27 - Mon, Sep 28
Icelandair Logo
10:20 pm - 12:40 pm
LIS
-
DEN
21h 20m
1 stop
Icelandair Logo
4:40 pm - 1:50 pm
DEN
-
LIS
14h 10m
1 stop
$916Icelandair
Thu, Jan 14 - Sun, Jan 17
United Airlines Logo
5:00 am - 4:30 pm
LIS
-
COS
18h 30m
2 stops
United Airlines Logo
7:30 am - 8:10 am
COS
-
LIS
17h 40m
2 stops
$958United Airlines
Thu, Jan 14 - Sun, Jan 17
United Airlines Logo
5:00 am - 4:30 pm
LIS
-
COS
18h 30m
2 stops
United Airlines Logo
7:30 am - 8:10 am
COS
-
LIS
17h 40m
2 stops
$972United Airlines
Booking Insights

KAYAK's insights & trends for flights to Colorado

Get data-powered insights and trends for flights to Colorado to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Portugal to Colorado?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Portugal to Colorado, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Portugal to Colorado is September, when tickets cost $650 (return) on average. On the other hand, the most expensive months are February and January, when the average cost of round-trip tickets is $1,141 and $1,018 respectively.

Find deals

Good to know

Low season

September

Cheapest flight

$439
Best time to beat the crowds with an average 3% drop in price.
Most popular time to fly and prices are also 2% lower on average.
Flight from Lisbon to Denver

FAQs for booking flights from Portugal to Colorado

  • How does KAYAK find such low prices on flights from Portugal to Colorado?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Portugal to Colorado.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Portugal to Colorado?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Portugal to Colorado is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Portugal to Colorado?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Portugal to Colorado with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Portugal to Colorado?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Portugal to Colorado up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight to Colorado

Cabin class types available on flights to Colorado

Cabin classes available on flights to Colorado. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.
First Class flights to Colorado
Business Class flights to Colorado
Premium Economy Class flights to Colorado
Economy Class flights to Colorado