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Portugal

$252+ Cheap flights from Denver (DEN) to Portugal

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 10/13. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — LIS
ago 4 — ago 111
seg 8/4
seg 8/11
1 adult, Economy
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Cheap flight deals from Denver to Portugal

Keep the following information in mind while searching for Denver to Portugal flight deals. Data was last updated julho 30, 2025.

Round-trip from

$579
(Mytrip)

One-way from

$252
(Trip.com)

Popular in

June

Cheapest in

January

Average price

$1,025
From Denver Intl to Portugal
Search Deals
One-way flight from Denver Intl to Portugal
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Highest demand for flights based on searches. 15% potential increase in price ($184 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($40 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Denver to Portugal

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

This United Airlines deal was found by Cheapflights users on 7/28. 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.
seg 8/1811:59 pmDEN - PDL
2 stops26h 41mUnited Airlines
qua 9/311:00 amPDL - DEN
1 stop12h 38mUnited Airlines
Deal found 7/28$547
This Mytrip deal was found by Cheapflights users on 7/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ter 9/309:40 amDEN - OPO
2 stops25h 05mMultiple Airlines
qua 10/1510:00 pmOPO - DEN
2 stops24h 35mMultiple Airlines
Deal found 7/29$579
This United Airlines deal was found by Cheapflights users on 7/27. 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.
qua 11/512:45 pmDEN - OPO
1 stop13h 45mUnited Airlines
qua 11/126:00 amOPO - DEN
1 stop17h 00mUnited Airlines
Deal found 7/27$580
This FlightHub deal was found by Cheapflights users on 7/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ter 10/145:59 pmDEN - OPO
1 stop14h 46mLufthansa
seg 11/312:30 pmOPO - DEN
1 stop34h 30mLufthansa
Deal found 7/29$621
This Scandinavian Airlines deal was found by Cheapflights users on 7/28. 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.
dom 11/96:30 amDEN - FAO
2 stops44h 30mScandinavian Airlines
sáb 11/155:10 pmFAO - DEN
2 stops36h 36mScandinavian Airlines
Deal found 7/28$634
This Ovago deal was found by Cheapflights users on 7/29. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ter 12/212:10 pmDEN - OPO
2 stops20h 50mBritish Airways
dom 12/148:20 amOPO - DEN
2 stops18h 35mBritish Airways
Deal found 7/29$653
This lol.travel deal was found by Cheapflights users on 7/30. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
seg 8/187:11 pmDEN - FNC
1 stop30h 19mUnited Airlines
qua 9/311:30 amFNC - DEN
1 stop18h 46mUnited Airlines
Deal found 7/30$692
This Iberia deal was found by Cheapflights users on 7/28. 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.
qui 10/309:12 amDEN - OPO
2 stops16h 28mIberia
sáb 11/88:40 pmOPO - DEN
2 stops19h 51mIberia
Deal found 7/28$709
This Ovago deal was found by Cheapflights users on 7/28. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 11/125:25 pmDEN - FAO
1 stop17h 20mBritish Airways
seg 11/177:05 pmFAO - DEN
1 stop27h 25mBritish Airways
Deal found 7/28$713
This Gurufare deal was found by Cheapflights users on 7/28. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
seg 11/107:22 amDEN - FAO
2 stops20h 08mAer Lingus
ter 11/1811:10 amFAO - DEN
2 stops18h 12mAer Lingus
Deal found 7/28$721
This United Airlines deal was found by Cheapflights users on 7/30. 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.
qui 10/161:25 pmDEN - LIS
1 stop14h 40mUnited Airlines
sex 10/245:05 amLIS - DEN
2 stops17h 58mUnited Airlines
Deal found 7/30$730
This Air Canada deal was found by Cheapflights users on 7/30. 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.
sex 10/1711:15 amDEN - LIS
2 stops16h 50mAir Canada
qui 10/2312:55 pmLIS - DEN
2 stops37h 43mAir Canada
Deal found 7/30$733

Cheapflights Fare Finder

 
Customize your flight search to find flights from Denver to Portugal 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 julho 30, 2025.
Use the filters below to find and compare flights from Denver to Portugal that are best for you.

Fly from

Denver

Fly to

Portugal

Route

Depart

Return

Price

DenverPonta Delgada

DEN - PDL

DENPDL

Denver Intl

seg 8/18

11:59 pm-8:40 am

2 stops26h 41m

Ponta Delgada Nordela

qua 9/3

11:00 am-5:38 pm

1 stop12h 38m

$547

DenverPorto

DEN - OPO

DENOPO

Denver Intl

ter 9/30

9:40 am-5:45 pm

2 stops25h 05m

Porto

qua 10/15

10:00 pm-3:35 pm

2 stops24h 35m

$579

DenverPorto

DEN - OPO

DENOPO

Denver Intl

qua 11/5

12:45 pm-9:30 am

1 stop13h 45m

Porto

qua 11/12

6:00 am-4:00 pm

1 stop17h 00m

$580

DenverPorto

DEN - OPO

DENOPO

Denver Intl

ter 10/14

5:59 pm-3:45 pm

1 stop14h 46m

Porto

seg 11/3

12:30 pm-4:00 pm

1 stop34h 30m

$621

DenverFaro

DEN - FAO

DENFAO

Denver Intl

dom 11/9

6:30 am-10:00 am

2 stops44h 30m

Faro

sáb 11/15

5:10 pm-10:46 pm

2 stops36h 36m

$634

DenverPorto

DEN - OPO

DENOPO

Denver Intl

ter 12/2

12:10 pm-4:00 pm

2 stops20h 50m

Porto

dom 12/14

8:20 am-7:55 pm

2 stops18h 35m

$653

DenverFunchal

DEN - FNC

DENFNC

Denver Intl

seg 8/18

7:11 pm-8:30 am

1 stop30h 19m

Funchal Madeira

qua 9/3

11:30 am-11:16 pm

1 stop18h 46m

$692

DenverPorto

DEN - OPO

DENOPO

Denver Intl

qui 10/30

9:12 am-7:40 am

2 stops16h 28m

Porto

sáb 11/8

8:40 pm-9:31 am

2 stops19h 51m

$709

DenverFaro

DEN - FAO

DENFAO

Denver Intl

qua 11/12

5:25 pm-5:45 pm

1 stop17h 20m

Faro

seg 11/17

7:05 pm-3:30 pm

1 stop27h 25m

$713

DenverFaro

DEN - FAO

DENFAO

Denver Intl

seg 11/10

7:22 am-10:30 am

2 stops20h 08m

Faro

ter 11/18

11:10 am-10:22 pm

2 stops18h 12m

$721

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 47 results
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Best time to book a flight from Denver to Portugal

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

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

Currently, January is the cheapest month in which you can book a flight from Denver to Portugal (average of $612). Flying from Denver to Portugal in June is currently the most expensive (average of $1,129). 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 DEN to PT?

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

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

Reviews of airlines servicing Portugal

Get insights into the airlines that provide service to Portugal. 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 Portugal. Reviews last updated julho 30, 2025.
See what other customers who have flown with Delta, SWISS, and United Airlines from Denver to Portugal have to say. 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
7,980 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
SWISS
7.5
Good
1,686 reviews
Delta
8.0
Very good
7,980 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,896 reviews
Delta
8.0
Very good
7,980 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Turkish Airlines
7.3
Good
3,928 reviews
Delta
8.0
Very good
7,980 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Scandinavian Airlines
7.3
Good
1,453 reviews
Delta
8.0
Very good
7,980 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Denver to Portugal. 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 from for flights from Denver to Portugal?

    Most people fly from Denver Intl (DEN) if they book a flight from Denver to Portugal. Denver Intl is conveniently located just 18.5 mi from Denver’s city center.

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

    The cheapest airlines for a one-way flight from Denver to Portugal are Aer Lingus ($401), Lufthansa ($486), and Delta ($487).

  • What are the most popular routes from Denver to Portugal?

    Most travelers choose Denver Intl - Lisbon Humberto Delgado, Denver Intl - Porto or Denver Intl - Faro when deciding on the best route from Denver to Portugal.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Denver to Portugal (average of $612). Flying from Denver to Portugal in June is currently the most expensive (average of $1,129). 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 Denver to Portugal

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Denver to Portugal

Discover the top 10 airlines that operate flights from Denver to Portugal. 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 julho 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$458Average$689FlexibilityNo cancel feeOn-time76%
DeltaCheapest$535Average$1,099FlexibilityNo cancel feeOn-timeN/A
Virgin AtlanticCheapest$539Average$1,193FlexibilityNo cancel feeOn-time72%
British AirwaysCheapest$555Average$890FlexibilityNo cancel feeOn-time70%
Turkish AirlinesCheapest$555Average$684FlexibilityNo cancel feeOn-time77%
Air FranceCheapest$569Average$886FlexibilityNo cancel feeOn-time77%
KLMCheapest$599Average$787FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$624Average$1,061FlexibilityNo cancel feeOn-time76%
Air CanadaCheapest$627Average$920FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$639Average$1,177FlexibilityNo cancel feeOn-time69%

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