HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Lisbon

$294+ Cheap flights from Colorado to Lisbon (LIS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/3. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — LIS
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Colorado to Lisbon with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Colorado to Lisbon

Keep the following information in mind while searching for Colorado to Lisbon flight deals. Data was last updated May 1, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$722
(Kiwi.com)

One-way from

$295
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$1,151
Provider with most accurate pricing for Denver Intl-Lisbon Humberto Delgado flight deals.
Search Deals
Provider most trusted by Cheapflights users for Denver Intl-Lisbon Humberto Delgado flights.
Search Deals
From Colorado to Lisbon Humberto Delgado
Search Deals
One-way flight from Colorado to Lisbon Humberto Delgado
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($246 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($40 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2025
Search Deals

Find flight deals from Colorado to Lisbon

Cheapest flights from Colorado to Lisbon
Explore the most affordable flight options available from Colorado to Lisbon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 1, 2025.

This American Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/16:35 pmDEN - LIS
1 stop21h 35mAmerican Airlines
Wed 10/226:35 amLIS - DEN
2 stops16h 50mAmerican Airlines
Deal found 4/29$723
This Iberia deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/234:58 pmDEN - LIS
2 stops16h 07mIberia
Wed 10/112:30 pmLIS - DEN
2 stops18h 05mIberia
Deal found 4/29$725
This Air Canada deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1411:25 amDEN - LIS
2 stops14h 55mAir Canada
Tue 10/2111:25 amLIS - DEN
2 stops15h 29mAir Canada
Deal found 4/29$727
This Iberia deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/266:30 pmDEN - LIS
1 stop17h 15mMultiple Airlines
Sat 11/14:45 pmLIS - DEN
2 stops23h 37mMultiple Airlines
Deal found 4/29$740
This Finnair deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/712:52 pmDEN - LIS
2 stops19h 33mFinnair
Sun 11/234:10 pmLIS - DEN
2 stops32h 32mFinnair
Deal found 4/29$750
This Delta deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/245:40 amDEN - LIS
2 stops19h 20mDelta
Sat 11/15:00 amLIS - DEN
2 stops23h 46mDelta
Deal found 4/29$753
This United Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/79:40 amDEN - LIS
1 stop16h 40mUnited Airlines
Tue 10/1411:25 amLIS - DEN
2 stops32h 18mUnited Airlines
Deal found 4/29$786
This Scandinavian Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2010:45 amDEN - LIS
3 stops28h 25mScandinavian Airlines
Wed 8/277:15 amLIS - DEN
2 stops23h 34mScandinavian Airlines
Deal found 4/30$787
This United Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/207:35 amASE - LIS
2 stops18h 45mUnited Airlines
Wed 8/2711:25 amLIS - ASE
2 stops41h 20mUnited Airlines
Deal found 4/30$791
This British Airways deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/265:30 pmDEN - LIS
1 stop14h 25mBritish Airways
Mon 1/56:35 pmLIS - DEN
1 stop27h 50mBritish Airways
Deal found 4/29$796
This deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/255:59 pmDEN - LIS
1 stop14h 21mLufthansa
Tue 9/306:45 amLIS - DEN
1 stop15h 50mLufthansa
Deal found 4/30$841
This Gotogate deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/256:35 pmCOS - LIS
2 stops55h 45mAir Canada
Fri 8/811:25 amLIS - COS
2 stops31h 51mAir Canada
Deal found 4/30$905

Cheapflights Fare Finder

Customize your flight search to find flights from Colorado to Lisbon that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 1, 2025.
Use the filters below to find and compare flights from Colorado to Lisbon that are best for you.

Fly from

Colorado

Fly to

Lisbon

Route

Depart

Return

Price

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Wed 10/1

6:35 pm-11:10 pm

1 stop21h 35m

Lisbon Humberto Delgado

Wed 10/22

6:35 am-4:25 pm

2 stops16h 50m

$723

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Tue 9/23

4:58 pm-4:05 pm

2 stops16h 07m

Lisbon Humberto Delgado

Tue 9/30

12:30 pm-11:35 pm

2 stops18h 05m

$725

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Tue 10/14

11:25 am-9:20 am

2 stops14h 55m

Lisbon Humberto Delgado

Tue 10/21

11:25 am-7:54 pm

2 stops15h 29m

$727

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Sun 10/26

6:30 pm-5:45 pm

1 stop17h 15m

Lisbon Humberto Delgado

Sat 11/1

4:45 pm-10:22 am

2 stops23h 37m

$740

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Fri 10/24

5:40 am-8:00 am

2 stops19h 20m

Lisbon Humberto Delgado

Sat 11/1

5:00 am-10:46 pm

2 stops23h 46m

$753

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Tue 10/7

9:40 am-9:20 am

1 stop16h 40m

Lisbon Humberto Delgado

Tue 10/14

11:25 am-12:43 pm

2 stops32h 18m

$786

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Wed 8/20

10:45 am-10:10 pm

3 stops28h 25m

Lisbon Humberto Delgado

Wed 8/27

7:15 am-11:49 pm

2 stops23h 34m

$787

AspenLisbon

ASE - LIS

ASELIS

Aspen Pitkin County

Wed 8/20

7:35 am-9:20 am

2 stops18h 45m

Lisbon Humberto Delgado

Wed 8/27

11:25 am-9:45 pm

2 stops41h 20m

$791

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Wed 5/14

6:35 pm-11:10 pm

1 stop21h 35m

Lisbon Humberto Delgado

Sat 8/30

11:05 am-9:55 pm

1 stop17h 50m

$824

DenverLisbon

DEN - LIS

DENLIS

Denver Intl

Thu 9/25

5:59 pm-3:20 pm

1 stop14h 21m

Lisbon Humberto Delgado

Tue 9/30

6:45 am-3:35 pm

1 stop15h 50m

$841

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 30 results
1
2
3

Best time to book a flight from Colorado to Lisbon

Have a flexible travel schedule? Discover the best time to fly to Lisbon from Colorado with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Colorado to Lisbon

What is the cheapest month to book a flight from Colorado to Lisbon?

Currently, January is the cheapest month in which you can book a flight from Colorado to Lisbon (average of $612). Flying from Colorado to Lisbon in June is currently the most expensive (average of $1,178). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from CO to LIS?

Find hourly flight availability from Colorado to Lisbon. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 1, 2025.

When flying from Colorado to Lisbon, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Lisbon by month

Plan your trip to Lisbon by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Lisbon ranges from 0.2 - 4.8 inches per month. December is typically the wettest month, when rainfall can reach 4.8 in. July is typically the driest time to visit Lisbon when rainfall is around 0.2 in.

Temperature in Lisbon by month

Plan your trip to Lisbon by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Lisbon, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing Lisbon

Get insights into the airlines that provide service to Lisbon. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Lisbon. Reviews last updated May 1, 2025.
To help decide which airline to fly from Colorado to Lisbon, see what other customers have to say about Delta, KLM and Finnair. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,934 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,934 reviews
Delta
8.0
Very good
7,934 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,334 reviews
Delta
8.0
Very good
7,934 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Finnair
7.6
Good
1,275 reviews
Delta
8.0
Very good
7,934 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
SWISS
7.5
Good
1,588 reviews
Delta
8.0
Very good
7,934 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,696 reviews
Delta
8.0
Very good
7,934 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Colorado to Lisbon. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Lisbon from Colorado?

    Lisbon Humberto Delgado (LIS), located 4.2 mi from the city center, is the airport you fly into when you book flights from Colorado to Lisbon.

  • What are the cheapest airlines to fly from Colorado to Lisbon one-way?

    For one-way options, check prices for Aer Lingus. According to our data, you can fly for as low as $427. Users have also found prices from $449 and $477 on Icelandair and Lufthansa, respectively.

  • What are the most popular routes from Colorado to Lisbon?

    The most popular flight routes from Colorado to Lisbon are Denver Intl - Lisbon Humberto Delgado, Colorado Springs - Lisbon Humberto Delgado and Aspen Pitkin County - Lisbon Humberto Delgado.

  • Can I find deals for flights from Colorado to Lisbon that include hotel bookings?

    Yes. In addition to deals on Colorado to Lisbon flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Colorado to Lisbon?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Colorado to Lisbon.

  • Can I find deals for business class flights from Colorado to Lisbon?

    Yes. Cheapflights offers flight deals from Colorado to Lisbon by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Colorado to Lisbon?

    Currently, January is the cheapest month in which you can book a flight from Colorado to Lisbon (average of $612). Flying from Colorado to Lisbon in June is currently the most expensive (average of $1,178). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Colorado?

Book flights to Colorado if you plan to visit one of these locations
Sintra
Beja
Nazaré
Costa da Caparica
Evora
Torres Vedras
Oeiras
Sesimbra
Fátima

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Colorado to Lisbon

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Lisbon flights
Newark to Lisbon flights
Boston to Lisbon flights
LaGuardia to Lisbon flights
Newark to Porto flights
Dulles Intl to Lisbon flights
O'Hare Intl to Lisbon flights
Miami to Lisbon flights
San Francisco to Lisbon flights
Boston to Ponta Delgada flights
John F Kennedy Intl to Porto flights
Los Angeles to Lisbon flights
Reagan-National to Lisbon flights
Philadelphia to Lisbon flights
John F Kennedy Intl to Ponta Delgada flights
Dallas/Fort Worth to Lisbon flights
Baltimore to Lisbon flights
Seattle to Lisbon flights
Boston to Porto flights
LaGuardia to Porto flights
Newark to Ponta Delgada flights
Hobby to Lisbon flights
Denver to Lisbon flights
Midway to Lisbon flights
Atlanta to Lisbon flights
Dulles Intl to Porto flights
Raleigh to Lisbon flights
Reagan-National to Porto flights
Love Field to Lisbon flights
George Bush Intcntl to Lisbon flights
Newark to Faro flights
Orlando to Lisbon flights
Newark to Funchal flights
John F Kennedy Intl to Funchal flights
John F Kennedy Intl to Faro flights
Baltimore to Porto flights
Sky Harbor Intl to Lisbon flights
Minneapolis to Lisbon flights
Portland to Lisbon flights
Charlotte to Lisbon flights
O'Hare Intl to Porto flights
San Diego to Lisbon flights
Tampa to Lisbon flights
Dallas/Fort Worth to Porto flights
Los Angeles to Porto flights
Austin to Lisbon flights
Detroit to Lisbon flights
Fort Lauderdale to Lisbon flights
San Francisco to Porto flights
Stewart to Lisbon flights

Top 10 airlines flying from Colorado to Lisbon

Discover the top 10 airlines that operate flights from Colorado to Lisbon. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$464Average$651FlexibilityNo cancel feeOn-time76%
Virgin AtlanticCheapest$491Average$1,177FlexibilityNo cancel feeOn-time72%
Turkish AirlinesCheapest$555Average$694FlexibilityNo cancel feeOn-time77%
DeltaCheapest$558Average$935FlexibilityNo cancel feeOn-timeN/A
Air FranceCheapest$569Average$922FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$570Average$859FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$597Average$911FlexibilityNo cancel feeOn-time69%
KLMCheapest$606Average$807FlexibilityNo cancel feeOn-time75%
Air CanadaCheapest$627Average$977FlexibilityNo cancel feeOn-time67%
LufthansaCheapest$641Average$945FlexibilityNo cancel feeOn-time76%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.