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$400+ Cheap flights from Portugal to Colorado

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 3/2. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — DEN
Feb 4 — Feb 111
Tue 2/4
Tue 2/11
1 adult, Economy
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Cheap flight deals from Portugal to Colorado

Discover tips and strategies to find the most affordable flight options for your journey from Portugal (PT0) to Colorado (USCO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$728
(American Airlines)

One-way from

$400
(Kiwi.com)

Popular in

July

Cheapest in

October

Average price

$964
Provider with most accurate pricing for Lisbon Humberto Delgado-Denver Intl flight deals.
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Provider most trusted by Cheapflights users for Lisbon Humberto Delgado-Denver Intl flights.
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From Portugal to Colorado
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One-way flight from Portugal to Colorado
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Highest demand for flights based on searches. 17% potential increase in price ($214 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($24 potential savings vs. average RT price).
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Average for round-trip flights in January 2025
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Find flight deals from Portugal to Colorado

Cheapest flights from Portugal to Colorado
Explore the most affordable flight options available from Portugal to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 30, 2025.

This American Airlines deal was found by Cheapflights users on 1/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/186:30 amLIS - DEN
2 stops21h 18mAmerican Airlines
Wed 3/267:13 amDEN - LIS
1 stop19h 42mAmerican Airlines
Deal found 1/30$728
This Finnair deal was found by Cheapflights users on 1/29. 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.
Tue 3/186:30 amLIS - DEN
2 stops23h 07mFinnair
Wed 3/2612:31 pmDEN - LIS
2 stops20h 54mFinnair
Deal found 1/29$744
This United Airlines deal was found by Cheapflights users on 1/30. 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.
Tue 3/1811:00 amLIS - DEN
2 stops16h 13mUnited Airlines
Wed 3/267:46 amDEN - LIS
2 stops18h 24mUnited Airlines
Deal found 1/30$798
This United Airlines deal was found by Cheapflights users on 1/30. 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.
Fri 6/1311:30 amFNC - DEN
2 stops19h 00mUnited Airlines
Wed 6/188:27 pmDEN - FNC
2 stops30h 13mUnited Airlines
Deal found 1/30$802
This British Airways deal was found by Cheapflights users on 1/29. 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.
Sun 9/77:20 amLIS - DEN
1 stop16h 05mBritish Airways
Fri 9/126:35 pmDEN - LIS
1 stop14h 00mBritish Airways
Deal found 1/29$889
This Gotogate deal was found by Cheapflights users on 1/30. 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.
Sun 3/164:20 amFNC - DEN
2 stops23h 57mLufthansa
Sun 3/2310:25 amDEN - FNC
2 stops32h 35mLufthansa
Deal found 1/30$936
This Booking.com deal was found by Cheapflights users on 1/29. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/77:05 amLIS - DEN
2 stops18h 50mIcelandair
Fri 9/124:40 pmDEN - LIS
2 stops19h 40mIcelandair
Deal found 1/29$1,006
This SWISS deal was found by Cheapflights users on 1/29. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/512:30 pmLIS - DEN
2 stops32h 30mSWISS
Thu 9/185:35 pmDEN - LIS
2 stops40h 10mSWISS
Deal found 1/29$1,128
This Mytrip deal was found by Cheapflights users on 1/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/1610:05 amFNC - DEN
3 stops35h 35mMultiple Airlines
Sun 3/236:45 pmDEN - FNC
3 stops33h 25mMultiple Airlines
Deal found 1/30$1,131
This Mytrip deal was found by Cheapflights users on 1/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/1812:35 pmLIS - DEN
3 stops34h 45mMultiple Airlines
Wed 3/2611:25 amDEN - LIS
3 stops28h 00mMultiple Airlines
Deal found 1/30$1,145
This Scandinavian Airlines deal was found by Cheapflights users on 1/29. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/77:15 amLIS - DEN
2 stops23h 06mScandinavian Airlines
Fri 9/126:30 amDEN - LIS
3 stops26h 15mScandinavian Airlines
Deal found 1/29$1,225
This Air Canada deal was found by Cheapflights users on 1/30. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/139:25 amFNC - DEN
3 stops19h 33mAir Canada
Wed 6/189:40 amDEN - FNC
3 stops20h 25mAir Canada
Deal found 1/30$1,515

Find flights from Portugal to Colorado within your budget

Customize your flight search to find flights from Portugal to Colorado 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 January 30, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Tue 3/18

6:30 am-9:48 pm

2 stops21h 18m

Denver Intl

Wed 3/26

7:13 am-8:55 am

1 stop19h 42m

$728

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Tue 3/18

6:30 am-11:37 pm

2 stops23h 07m

Denver Intl

Wed 3/26

12:31 pm-3:25 pm

2 stops20h 54m

$744

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Tue 3/18

11:00 am-9:13 pm

2 stops16h 13m

Denver Intl

Wed 3/26

7:46 am-8:10 am

2 stops18h 24m

$798

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Sat 7/5

7:10 am-4:25 pm

1 stop16h 15m

Denver Intl

Thu 9/18

6:35 pm-6:10 pm

1 stop16h 35m

$1,017

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Sat 7/5

12:30 pm-2:00 pm

2 stops32h 30m

Denver Intl

Thu 9/18

5:35 pm-4:45 pm

2 stops40h 10m

$1,128

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Tue 3/18

12:35 pm-5:20 pm

3 stops34h 45m

Denver Intl

Wed 3/26

11:25 am-9:25 pm

3 stops28h 00m

$1,145

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Sat 7/5

7:00 am-10:56 pm

2 stops22h 56m

Denver Intl

Thu 9/18

6:30 am-3:45 pm

3 stops26h 15m

$1,483

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Sat 3/29

10:50 am-10:33 pm

2 stops41h 43m

Denver Intl

Wed 4/9

7:20 am-10:45 am

2 stops20h 25m

$2,734

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Tue 2/18

10:00 am-10:46 pm

2 stops19h 46m

Denver Intl

Fri 2/28

6:05 am-8:00 am

2 stops18h 55m

$3,418

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

Sat 3/29

5:00 am-4:55 pm

1 stop17h 55m

Denver Intl

Wed 4/9

5:40 pm-11:30 pm

1 stop22h 50m

$3,801

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/29

Showing 1-10 of 20 results
1
2

Best time to book a flight from Portugal to Colorado

Have a flexible travel schedule? Discover the best time to fly to Colorado from Portugal 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.

Travel insights for flights from Portugal to Colorado

Get recent, data-driven insights about flights from Portugal to Colorado including ideal travel times, pricing trends, and more.

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

Currently, October is the cheapest month in which you can book a flight from Portugal to Colorado (average of $197). Flying from Portugal to Colorado in March is currently the most expensive (average of $278). 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 PT to CO?

Find hourly flight availability from Portugal to Colorado. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 30, 2025.

When flying from Portugal to Colorado, 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 Colorado by month

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

In terms of precipitation, rainfall in Colorado ranges from 0.5 - 2.3 inches per month. May is typically the wettest month, when rainfall can reach 2.3 in. January is typically the driest time to visit Colorado when rainfall is around 0.5 in.

Temperature in Colorado by month

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

If weather is an important factor for your trip to Colorado, 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 30.2 F).

Reviews of airlines servicing Colorado

Get insights into the airlines that provide service to Colorado. 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 Colorado. Reviews last updated January 30, 2025.
Delta
8.0
Very good
8,450 reviews

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta
8.0
Very good
8,450 reviews
Delta
8.0
Very good
8,450 reviews

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Finnair
7.6
Good
1,285 reviews
Delta
8.0
Very good
8,450 reviews

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

SWISS
7.5
Good
1,584 reviews
Delta
8.0
Very good
8,450 reviews

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines
7.4
Good
8,906 reviews
Delta
8.0
Very good
8,450 reviews

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Turkish Airlines
7.3
Good
3,903 reviews
Delta
8.0
Very good
8,450 reviews

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

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

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

    The cheapest airlines for a one-way flight from Portugal to Colorado are Aer Lingus ($531), Turkish Airlines ($623), and Finnair ($677).

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Portugal to Colorado 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 Portugal to Colorado?

    Currently, October is the cheapest month in which you can book a flight from Portugal to Colorado (average of $197). Flying from Portugal to Colorado in March is currently the most expensive (average of $278). 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

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Alternative routes for Portugal to Colorado

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Portugal to Colorado

Discover the top 4 airlines that operate flights from Portugal to Colorado. 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 January 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$679Average$918FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$766Average$932FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$809Average$1,181FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$845Average$930FlexibilityNo cancel feeOn-time71%
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