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Cheap flights from Denver (DEN) to Porto (OPO) from $328

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 10/22. 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.
DEN — OPO
May 12 — May 191
From?
To?
Sun 5/12
Sun 5/19
1 adult, Economy
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The best prices from Denver Intl to Porto are usually found in January or February, booked 13 days in advance, depart on a Thursday or Wednesday and return on a Monday

Cheap flight deals from Denver to Porto

Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to Porto (OPO). 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 May 7, 2024.

Popular in

May

Cheapest in

January

Round-trip from

$523

One-way from

$328
High demand for flights, 30% potential price rise
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Best time to find cheap flights, 55% potential price drop
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From Denver Intl to Porto
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One-way flight from Denver Intl to Porto
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What is the cheapest day to fly round-trip from Denver to Porto?

Departing on a Wednesday is a good option for securing a great price. You can expect to save up to 17% when planning your travel around this day of the week.

How far in advance should I book a flight from Denver to Porto?

Users have found that booking a flight from Denver to Porto at least 13 days early can save you up to 165% on average compared to booking a flight this week. If booking 13 days before your flight isn’t an option for you, users have found flights from Denver to Porto for as little as $449 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $2,017 for flights departing within the next 3 days.

What is the cheapest month to fly from Denver to Porto?

Our data shows that January tends to be the cheapest month to fly to Porto from Denver. Users have commonly found prices around $1,114 for the month, but tickets can be as low as $462. Due to multiple factors, prepare for potentially higher prices in May.

When is the cheapest time to fly from Denver to Porto (DEN - OPO)?

It’s optimal to fly from Denver to Porto in the afternoon. By choosing this option you can save up to 31% on the cost of your flight, compared to a flight at noon.

Cheap Lufthansa flights from Denver to Porto

Explore cheap flight options specifically provided by Lufthansa for the route between Denver and Porto. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,689,106 searches. Data last updated May 7, 2024.
Peruse some of the lowest-priced Lufthansa flights we've found from Denver to Porto. It's recommended that users confirm their flight details before booking.
Wed 10/306:50 pmDEN - OPO
1 stop21h 35mLufthansa
Thu 11/76:00 amOPO - DEN
1 stop17h 05mLufthansa
Deal found 5/6$706
Wed 10/307:00 pmDEN - OPO
2 stops21h 25mLufthansa
Thu 11/76:00 amOPO - DEN
1 stop17h 05mLufthansa
Deal found 5/6$712
Sat 8/244:05 pmDEN - OPO
1 stop24h 15mLufthansa
Thu 9/126:15 amOPO - DEN
1 stop15h 05mLufthansa
Deal found 5/6$927
Fri 8/235:35 pmDEN - OPO
1 stop15h 20mLufthansa
Thu 9/126:15 amOPO - DEN
1 stop15h 05mLufthansa
Deal found 5/6$942
Sat 8/245:35 pmDEN - OPO
1 stop15h 10mLufthansa
Wed 9/186:00 amOPO - DEN
1 stop16h 40mLufthansa
Deal found 5/6$956
Sun 11/35:50 pmDEN - OPO
1 stop14h 55mLufthansa
Fri 11/812:30 pmOPO - DEN
2 stops57h 10mLufthansa
Deal found 5/7$1,025
Thu 8/225:35 pmDEN - OPO
1 stop15h 10mLufthansa
Wed 9/186:15 amOPO - DEN
1 stop15h 05mLufthansa
Deal found 5/6$1,085

Cheap SWISS flights from Denver to Porto

Explore cheap flight options specifically provided by SWISS for the route between Denver and Porto. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,689,106 searches. Data last updated May 7, 2024.
Some of the best deals we've found on SWISS flights traveling from Denver to Porto. Deals are refreshing constantly so come back soon for more options.
Wed 10/302:40 pmDEN - OPO
2 stops22h 00mSWISS
Thu 11/71:10 pmOPO - DEN
2 stops39h 15mSWISS
Deal found 5/6$719
Wed 8/215:55 pmDEN - OPO
1 stop31h 00mSWISS
Sun 9/1512:25 pmOPO - DEN
1 stop34h 55mSWISS
Deal found 5/6$778
Mon 8/265:55 pmDEN - OPO
1 stop34h 35mSWISS
Sun 9/157:20 pmOPO - DEN
1 stop28h 00mSWISS
Deal found 5/6$923
Mon 9/95:55 pmDEN - OPO
1 stop31h 00mSWISS
Mon 10/77:15 pmOPO - DEN
2 stops33h 42mSWISS
Deal found 5/6$1,053
Sun 6/25:55 pmDEN - OPO
1 stop17h 20mSWISS
Sat 6/87:20 pmOPO - DEN
1 stop28h 05mSWISS
Deal found 5/6$1,123

Cheap Denver to Porto flights in May & June 2024

Find cheap flight options from Denver to Porto specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,689,106 searches. Prices were last updated on May 7, 2024.
The lowest fares we've come across on flights traveling from Denver to Porto in May and June 2024. Check back soon for alternative fares.
Wed 6/51:25 pmDEN - OPO
1 stop13h 20mUnited Airlines
Wed 6/199:00 amOPO - DEN
1 stop15h 58mUnited Airlines
Deal found 5/6$1,011
Wed 6/57:45 amDEN - OPO
2 stops16h 10mUnited Airlines
Wed 6/199:00 amOPO - DEN
2 stops20h 06mUnited Airlines
Deal found 5/6$1,015
Tue 6/116:00 amDEN - OPO
2 stops17h 55mUnited Airlines
Mon 6/2412:35 pmOPO - DEN
2 stops18h 24mUnited Airlines
Deal found 5/6$1,065
Tue 6/111:25 pmDEN - OPO
1 stop13h 20mUnited Airlines
Mon 6/246:00 amOPO - DEN
2 stops24h 15mUnited Airlines
Deal found 5/7$1,081
Tue 6/115:02 amDEN - OPO
2 stops18h 53mUnited Airlines
Mon 6/246:00 amOPO - DEN
2 stops24h 15mUnited Airlines
Deal found 5/7$1,086
Wed 5/2912:49 pmDEN - OPO
1 stop13h 56mUnited Airlines
Sat 6/89:00 amOPO - DEN
1 stop14h 21mUnited Airlines
Deal found 5/7$1,118
Mon 6/35:55 pmDEN - OPO
1 stop31h 00mSWISS
Sat 6/82:35 pmOPO - DEN
2 stops56h 45mSWISS
Deal found 5/6$1,120
Wed 5/2911:20 amDEN - OPO
2 stops15h 25mUnited Airlines
Sat 6/89:00 amOPO - DEN
2 stops18h 02mUnited Airlines
Deal found 5/7$1,122
Sun 6/25:55 pmDEN - OPO
1 stop17h 20mSWISS
Sat 6/87:20 pmOPO - DEN
1 stop28h 05mSWISS
Deal found 5/6$1,123

Denver to Porto 2024 flight deals

Discover exclusive flight deals for travel between Denver and Porto in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,689,106 searches. Data last updated May 7, 2024.
The lowest fares we've come across on flights traveling from Denver to Porto in May and June 2024. Check back soon for alternative fares.
Tue 11/59:45 amDEN - OPO
2 stops18h 50mAir Canada
Wed 11/206:00 amOPO - DEN
2 stops35h 04mAir Canada
Deal found 5/6$702
Wed 10/306:50 pmDEN - OPO
1 stop21h 35mLufthansa
Thu 11/76:00 amOPO - DEN
1 stop17h 05mLufthansa
Deal found 5/6$706
Wed 10/307:00 pmDEN - OPO
2 stops21h 25mLufthansa
Thu 11/76:00 amOPO - DEN
1 stop17h 05mLufthansa
Deal found 5/6$712
Tue 11/53:50 pmDEN - OPO
1 stop16h 55mMultiple Airlines
Wed 11/201:45 pmOPO - DEN
1 stop31h 55mMultiple Airlines
Deal found 5/6$717
Wed 10/302:40 pmDEN - OPO
2 stops22h 00mSWISS
Thu 11/71:10 pmOPO - DEN
2 stops39h 15mSWISS
Deal found 5/6$719
Tue 11/52:00 pmDEN - OPO
2 stops18h 45mMultiple Airlines
Tue 11/1212:30 pmOPO - DEN
3 stops32h 53mMultiple Airlines
Deal found 5/6$722
Tue 11/53:50 pmDEN - OPO
1 stop16h 55mMultiple Airlines
Tue 11/1212:30 pmOPO - DEN
1 stop32h 10mMultiple Airlines
Deal found 5/6$724
Sun 11/103:50 pmDEN - OPO
1 stop16h 55mMultiple Airlines
Sat 11/161:45 pmOPO - DEN
1 stop31h 55mMultiple Airlines
Deal found 5/5$767
Sun 11/108:15 amDEN - OPO
2 stops20h 20mMultiple Airlines
Sat 11/164:35 pmOPO - DEN
2 stops33h 54mMultiple Airlines
Deal found 5/5$769

One-way flights to Porto from Denver

Search for one-way flight options from Denver to Porto. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,689,106 searches. Data last updated May 7, 2024.
Take a look at some of the best available options we've come across on one-way flights from Denver to Porto. For those needing a return trip from Denver, there is a search form available above.
Tue 10/224:40 pmDEN - OPO
2 stops19h 10mMultiple Airlines
Deal found 5/5$328
Mon 8/268:30 amDEN - OPO
3 stops27h 15mMultiple Airlines
Deal found 5/6$376
Fri 10/412:58 amDEN - OPO
3 stops28h 02mMultiple Airlines
Deal found 5/6$380
Sun 8/258:30 amDEN - OPO
3 stops27h 25mMultiple Airlines
Deal found 5/6$400
Tue 8/278:30 amDEN - OPO
3 stops27h 25mMultiple Airlines
Deal found 5/6$410
Sat 10/54:40 pmDEN - OPO
3 stops32h 10mMultiple Airlines
Deal found 5/6$413
Sat 10/54:40 pmDEN - OPO
2 stops24h 00mMultiple Airlines
Deal found 5/6$416
Fri 9/2011:56 pmDEN - OPO
3 stops29h 04mMultiple Airlines
Deal found 5/6$421
Sat 10/264:15 pmDEN - OPO
1 stop15h 00mMultiple Airlines
Deal found 5/5$423

Find flights from Denver to Porto within your budget

Customize your flight search to find flights from Denver to Porto 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 2,689,106 searches. Data last updated May 7, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$706 - $973

Route

Depart

Return

Price

Denver IntlPorto

DEN - OPO

DENOPO

Denver Intl

Wed 10/30

1 stop21h 35m

Porto

Thu 11/7

1 stop17h 05m

$706

Denver IntlPorto

DEN - OPO

DENOPO

Denver Intl

Wed 10/30

2 stops22h 00m

Porto

Thu 11/7

2 stops39h 15m

$719

Denver IntlPorto

DEN - OPO

DENOPO

Denver Intl

Wed 8/21

1 stop31h 40m

Porto

Wed 9/18

1 stop13h 20m

$781

Denver IntlPorto

DEN - OPO

DENOPO

Denver Intl

Mon 8/26

1 stop18h 00m

Porto

Tue 9/17

2 stops18h 09m

$871

Denver IntlPorto

DEN - OPO

DENOPO

Denver Intl

Sun 8/25

1 stop11h 35m

Porto

Thu 9/12

1 stop16h 40m

$877

Denver IntlPorto

DEN - OPO

DENOPO

Denver Intl

Tue 8/27

1 stop20h 15m

Porto

Sun 9/15

1 stop28h 00m

$910

Denver IntlPorto

DEN - OPO

DENOPO

Denver Intl

Thu 8/22

2 stops18h 14m

Porto

Tue 9/17

2 stops18h 09m

$932

Denver IntlPorto

DEN - OPO

DENOPO

Denver Intl

Sat 8/24

2 stops16h 10m

Porto

Wed 9/18

2 stops23h 31m

$933

Denver IntlPorto

DEN - OPO

DENOPO

Denver Intl

Wed 8/28

1 stop14h 45m

Porto

Sun 9/15

1 stop13h 20m

$973

Flights are sorted by cheapest first

Deals found on 5/6

When is the best time to book a flight from Denver to Porto?

Use this chart to determine the optimal time to book a round-trip flight from Denver to Porto. Price data was last updated on May 3, 2024.
The best time to book flights from Denver to Porto is 12 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Search Deals

When is the cheapest time to fly from Denver to Porto?

Use this chart to determine the cheapest time to fly round-trip from Denver to Porto. Price data was last updated on May 5, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Denver to Porto flight should consider departing on Wednesday mornings when fares are most often at their lowest. Wednesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
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Average price of flights to Porto by month

Plan your trip from Denver to Porto by taking into account the cheapest months to travel. The average price of a one-way flight from Denver to Porto is currently $396 while a round-trip flight costs $856. Price data was last updated on April 28, 2024.

Currently, January is the cheapest month in which you can book a flight from Denver to Porto (average of $523). Flying from Denver to Porto in June is currently the most expensive (average of $1,027). 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.

January

$523

February

$581

March

$599

April

$742

May

$883

June

$1,027

July

$985

August

$866

September

$759

October

$698

November

$548

December

$645

Temperature and rainfall in Porto by month

Plan your trip to Porto by taking into account the average temperature and rainfall totals by month.

OPO

Temperature

48.2 - 68 °F

Reviews of airlines servicing Porto

Get insights into the airlines that provide service to Porto. 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 Porto. Reviews last updated May 7, 2024.
See what other customers who have flown with Lufthansa, SWISS and Delta from Denver to Porto have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.1
Very good
10,818 reviews
Check prices

Comfort

7.9

Food

7.4

Boarding

8.2

Overall

8.1

Crew

8.6

Entertainment

8.0

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Delta
8.1
Very good
10,818 reviews
Delta
8.1
Very good
10,818 reviews
Check prices

Comfort

7.9

Food

7.4

Boarding

8.2

Overall

8.1

Crew

8.6

Entertainment

8.0

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

KLM
7.9
Good
1,602 reviews
Delta
8.1
Very good
10,818 reviews
Check prices

Comfort

7.9

Food

7.4

Boarding

8.2

Overall

8.1

Crew

8.6

Entertainment

8.0

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

SWISS
7.8
Good
2,013 reviews
Delta
8.1
Very good
10,818 reviews
Check prices

Comfort

7.9

Food

7.4

Boarding

8.2

Overall

8.1

Crew

8.6

Entertainment

8.0

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Air France
7.5
Good
1,783 reviews
Delta
8.1
Very good
10,818 reviews
Check prices

Comfort

7.9

Food

7.4

Boarding

8.2

Overall

8.1

Crew

8.6

Entertainment

8.0

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Turkish Airlines
7.5
Good
3,711 reviews
Delta
8.1
Very good
10,818 reviews
Check prices

Comfort

7.9

Food

7.4

Boarding

8.2

Overall

8.1

Crew

8.6

Entertainment

8.0

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Related info for your journey

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

  • Can I find flights from Denver to Porto for under $800 on Cheapflights?

    Yes, there are multiple flights from Denver to Porto for under $800. The cheapest flight booked recently is on Lufthansa for just $706, but on average you can expect to pay $809.

  • What are the cheapest airlines flying from Denver to Porto round-trip?

    Currently priced at $706, Lufthansa will fly you from Denver to Porto and back. In addition to Lufthansa, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from SWISS and Delta - these airlines can fly you to your destination from $719 and $781, respectively. Lufthansa is currently priced 36% below the average price you’ll pay for this route.

  • What are the most popular airlines that fly from Denver to Porto?

    American Airlines, British Airways and Delta are the most popular airlines when flying from Denver to Porto.

  • What does DEN to OPO mean?

    This is defined as Denver Intl Airport (DEN) and Porto Airport (OPO). Codes like Porto Airport are often used to just call airports uniquely.

  • Can I find deals for flights from Denver to Porto that include extra baggage allowance?

    The amount of baggage you can bring on your Denver to Porto flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Denver to Porto with specific airlines?

    Yes, Cheapflights allows you to browse and filter Denver to Porto flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

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

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

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

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

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

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

  • Can I find deals for flights from Denver to Porto that allow pets onboard?

    Many airlines flying from Denver to Porto offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Denver to Porto?

    Yes, you can often find last-minute deals on Denver to Porto flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Denver to Porto flight deals updated?

    The Denver to Porto flight deals you see on this page were last updated on 5/6.

See more FAQs

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Alternative routes for Denver to Porto
See prices for flight routes from nearby airports that may be better suited for you.

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Top 6 airlines flying from Denver to Porto

Discover the top 6 airlines that operate flights from Denver to Porto. 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 2,689,106 searches. Data last updated May 7, 2024.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$502Average$1,160FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
British AirwaysCheapest$504Average$1,168FlexibilityNo cancel feeOn-time70%
Search British Airways flights
IberiaCheapest$513Average$1,066FlexibilityNo cancel feeOn-time77%
Search Iberia flights
LufthansaCheapest$554Average$1,051FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
DeltaCheapest$562Average$1,147FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapest$717Average$1,306FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
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Search flights from Denver to Porto by cabin class

Find flights from Denver to Porto, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Denver to Porto?

Cheapflights helps you search for flights from Denver to Porto via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Denver to Porto?

Cheapflights helps you find that perfect flight to Porto from Denver by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Denver to Porto with no change fees?

Yes, we can. To see specific flights from Denver to Porto with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Denver to Porto become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Porto from Denver today and book when prices fit your budget.

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