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$437+ Cheap flights from Portugal to Denver (DEN)

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 3/27. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — DEN
feb. 25 — mar. 41
mar. 2/25
mar. 3/4
1 adult, Economy
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Cheap flight deals from Portugal to Denver

Keep the following information in mind while searching for Portugal to Denver flight deals. Data was last updated febrero 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$723
(British Airways)

One-way from

$437
(Kiwi.com)

Popular in

July

Cheapest in

October

Average price

$972
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 Denver Intl
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One-way flight from Portugal to Denver Intl
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Highest demand for flights based on searches. 17% potential increase in price ($215 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 February 2025
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Find flight deals from Portugal to Denver

Cheapest flights from Portugal to Denver
Explore the most affordable flight options available from Portugal to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on febrero 20, 2025.

This British Airways deal was found by Cheapflights users on 2/19. 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.
sáb. 4/196:55 pmLIS - DEN
1 stop28h 30mBritish Airways
mié. 4/306:35 pmDEN - LIS
1 stop21h 35mBritish Airways
Deal found 2/19$723
This Iberia deal was found by Cheapflights users on 2/20. 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.
dom. 4/136:35 amLIS - DEN
2 stops24h 18mIberia
lun. 4/284:59 pmDEN - LIS
2 stops16h 06mIberia
Deal found 2/20$736
This American Airlines deal was found by Cheapflights users on 2/19. 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.
vie. 2/287:05 amLIS - DEN
1 stop15h 20mAmerican Airlines
jue. 5/16:35 pmDEN - LIS
1 stop21h 25mAmerican Airlines
Deal found 2/19$777
This AirNGo deal was found by Cheapflights users on 2/19. 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 AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 2/285:30 amLIS - DEN
1 stop14h 05mAir France
jue. 5/15:40 pmDEN - LIS
1 stop17h 10mAir France
Deal found 2/19$781
This Delta deal was found by Cheapflights users on 2/20. 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.
dom. 4/135:40 amLIS - DEN
1 stop16h 50mDelta
lun. 4/2811:30 amDEN - LIS
2 stops16h 45mDelta
Deal found 2/20$790
This Gotogate deal was found by Cheapflights users on 2/20. 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.
mar. 3/115:00 amLIS - DEN
1 stop17h 55mLufthansa
mié. 5/143:45 pmDEN - LIS
1 stop23h 20mLufthansa
Deal found 2/20$795
This Kiwi.com deal was found by Cheapflights users on 2/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 3/117:00 amLIS - DEN
2 stops21h 28mMultiple Airlines
mié. 5/1410:38 pmDEN - LIS
1 stop29h 52mMultiple Airlines
Deal found 2/20$810
This United Airlines deal was found by Cheapflights users on 2/19. 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.
vie. 2/2810:15 amLIS - DEN
3 stops20h 15mUnited Airlines
jue. 5/111:25 amDEN - LIS
1 stop16h 45mUnited Airlines
Deal found 2/19$816
This SWISS deal was found by Cheapflights users on 2/20. 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.
mar. 3/113:25 pmLIS - DEN
2 stops38h 05mSWISS
jue. 5/2211:25 amDEN - LIS
2 stops37h 50mSWISS
Deal found 2/20$931
This Scandinavian Airlines deal was found by Cheapflights users on 2/20. 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.
sáb. 9/277:15 amLIS - DEN
2 stops22h 41mScandinavian Airlines
vie. 10/36:30 amDEN - LIS
3 stops26h 15mScandinavian Airlines
Deal found 2/20$1,109
This Finnair deal was found by Cheapflights users on 2/20. 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.
dom. 4/136:35 amLIS - DEN
2 stops23h 04mFinnair
lun. 4/286:35 pmDEN - LIS
1 stop21h 35mFinnair
Deal found 2/20$1,113
This Air Canada deal was found by Cheapflights users on 2/20. 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.
sáb. 9/2711:25 amLIS - DEN
1 stop13h 53mAir Canada
vie. 10/38:15 amDEN - LIS
2 stops18h 05mAir Canada
Deal found 2/20$1,636

Find flights from Portugal to Denver within your budget

Customize your flight search to find flights from Portugal to Denver 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 febrero 20, 2025.

Fly from

Portugal

Fly to

Denver

Route

Depart

Return

Price

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

sáb. 4/19

6:55 pm-4:25 pm

1 stop28h 30m

Denver Intl

mié. 4/30

6:35 pm-11:10 pm

1 stop21h 35m

$723

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

dom. 4/13

6:35 am-11:53 pm

2 stops24h 18m

Denver Intl

lun. 4/28

4:59 pm-4:05 pm

2 stops16h 06m

$736

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

dom. 4/13

5:40 am-3:30 pm

1 stop16h 50m

Denver Intl

lun. 4/28

11:30 am-11:15 am

2 stops16h 45m

$790

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

mar. 3/11

5:00 am-4:55 pm

1 stop17h 55m

Denver Intl

mié. 5/14

3:45 pm-10:05 pm

1 stop23h 20m

$795

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

mar. 3/11

7:00 am-10:28 pm

2 stops21h 28m

Denver Intl

mié. 5/14

10:38 pm-11:30 am

1 stop29h 52m

$810

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

dom. 4/6

5:05 am-1:35 pm

1 stop15h 30m

Denver Intl

dom. 4/13

11:59 pm-9:20 am

2 stops26h 21m

$834

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

jue. 3/13

6:30 am-8:25 pm

2 stops19h 55m

Denver Intl

mié. 5/14

7:00 am-9:05 am

1 stop19h 05m

$866

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

mar. 3/11

3:25 pm-11:30 pm

2 stops38h 05m

Denver Intl

jue. 5/22

11:25 am-8:15 am

2 stops37h 50m

$931

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

dom. 4/13

6:35 am-10:39 pm

2 stops23h 04m

Denver Intl

lun. 4/28

6:35 pm-11:10 pm

1 stop21h 35m

$1,113

LisbonDenver

LIS - DEN

LISDEN

Lisbon Humberto Delgado

dom. 4/13

7:15 am-11:18 pm

2 stops23h 03m

Denver Intl

lun. 4/28

1:30 pm-10:10 pm

3 stops25h 40m

$2,208

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 18 results
1
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Best time to book a flight from Portugal to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver 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 Denver

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

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

Currently, October is the cheapest month in which you can book a flight from Portugal to Denver (average of $197). Flying from Portugal to Denver 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 DEN?

Find hourly flight availability from Portugal to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated febrero 20, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Portugal to Denver as you normally would.

Rainfall in Denver by month

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

In terms of precipitation, rainfall in Denver 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 Denver when rainfall is around 0.5 in.

Temperature in Denver by month

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

If weather is an important factor for your trip to Denver, 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 Denver

Get insights into the airlines that provide service to Denver. 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 Denver. Reviews last updated febrero 20, 2025.
Get a feel of what it's like to fly with Delta, Finnair and SWISS from Portugal to Denver by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,220 reviews

Comfort

8.0

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

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
8,220 reviews
Delta
8.0
Very good
8,220 reviews

Comfort

8.0

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

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
1,273 reviews
Delta
8.0
Very good
8,220 reviews

Comfort

8.0

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

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
1,568 reviews
Delta
8.0
Very good
8,220 reviews

Comfort

8.0

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

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
8,766 reviews
Delta
8.0
Very good
8,220 reviews

Comfort

8.0

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

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
3,832 reviews
Delta
8.0
Very good
8,220 reviews

Comfort

8.0

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

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 Denver. 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 Denver from Portugal?

    For a flight from Portugal to Denver, you will be flying into Denver Intl. Denver Intl (DEN) is just 18.5 mi from the center of the city.

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

    $630 is the cheapest one-way deal found within the past few days, from Turkish Airlines. You may also be able to find cheap deals on Aer Lingus and Finnair, with prices starting from $634 and $664, respectively.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Portugal to Denver (average of $197). Flying from Portugal to Denver 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

Traveling to a place near Portugal?

Book flights to Portugal if you plan to visit one of these locations
Westminster
Black Hawk
Winter Park
Lakewood
Broomfield
Silverthorne
Golden
Brighton
Keystone
Frisco
Wheat Ridge
Grand Lake
Idaho Springs
Greeley
Central City
Copper Mountain
Longmont
Thornton
Limon
Dillon

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Alternative routes for Portugal to Denver

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Top 4 airlines flying from Portugal to Denver

Discover the top 4 airlines that operate flights from Portugal to Denver. 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 febrero 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$744Average$951FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$766Average$912FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$809Average$1,181FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$845Average$930FlexibilityNo cancel feeOn-time71%
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