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Cheap flights from Denver (DEN) to Porto (OPO) from $338

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 9/30. 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 15 — May 221
From?
To?
Wed 5/15
Wed 5/22
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 10, 2024.

Popular in

May

Cheapest in

January

Average price

$1,598

Round-trip from

$523
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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Average for round-trip flights in May 2024
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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 British Airways flights from Denver to Porto

Explore cheap flight options specifically provided by British Airways 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 2,717,708 searches. Data last updated May 10, 2024.
Peruse some of the lowest-priced British Airways flights we've found from Denver to Porto. It's recommended that users confirm their flight details before booking.
Tue 8/206:35 pmDEN - OPO
1 stop17h 40mBritish Airways
Fri 9/138:15 amOPO - DEN
2 stops22h 14mBritish Airways
Deal found 5/9$726
Mon 8/266:35 pmDEN - OPO
1 stop18h 00mBritish Airways
Thu 9/1212:20 pmOPO - DEN
2 stops18h 09mBritish Airways
Deal found 5/8$871
Sat 8/246:35 pmDEN - OPO
1 stop18h 10mBritish Airways
Wed 9/1112:20 pmOPO - DEN
2 stops18h 09mBritish Airways
Deal found 5/8$921
Tue 8/276:35 pmDEN - OPO
1 stop17h 40mBritish Airways
Sun 9/158:35 pmOPO - DEN
1 stop26h 55mBritish Airways
Deal found 5/8$951
Sat 8/246:35 pmDEN - OPO
1 stop18h 10mBritish Airways
Mon 9/1612:20 pmOPO - DEN
2 stops18h 09mBritish Airways
Deal found 5/8$971

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 2,717,708 searches. Data last updated May 10, 2024.
Some of the best deals we've found on Lufthansa flights traveling from Denver to Porto. Deals are refreshing constantly so come back soon for more options.
Tue 8/208:00 amDEN - OPO
2 stops32h 20mLufthansa
Fri 9/136:15 amOPO - DEN
2 stops24h 44mLufthansa
Deal found 5/9$747
Tue 9/248:00 amDEN - OPO
2 stops32h 20mLufthansa
Tue 10/156:15 amOPO - DEN
1 stop15h 05mLufthansa
Deal found 5/9$880
Thu 8/224:05 pmDEN - OPO
1 stop24h 15mLufthansa
Wed 9/116:00 amOPO - DEN
1 stop16h 40mLufthansa
Deal found 5/8$942
Fri 8/235:35 pmDEN - OPO
1 stop15h 20mLufthansa
Thu 9/126:15 amOPO - DEN
1 stop15h 05mLufthansa
Deal found 5/8$943
Wed 8/215:35 pmDEN - OPO
1 stop22h 10mLufthansa
Tue 9/106:00 amOPO - DEN
1 stop16h 40mLufthansa
Deal found 5/8$962
Wed 8/215:35 pmDEN - OPO
1 stop22h 10mLufthansa
Sat 9/146:00 amOPO - DEN
1 stop16h 40mLufthansa
Deal found 5/8$965
Fri 8/235:35 pmDEN - OPO
1 stop15h 20mLufthansa
Mon 9/166:00 amOPO - DEN
1 stop16h 40mLufthansa
Deal found 5/8$1,060

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 2,717,708 searches. Prices were last updated on May 10, 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.
Thu 6/64:18 pmDEN - OPO
2 stops47h 32mMultiple Airlines
Thu 6/136:50 amOPO - DEN
1 stop25h 23mMultiple Airlines
Deal found 5/9$954
Wed 6/512:49 pmDEN - OPO
1 stop13h 56mUnited Airlines
Wed 6/199:00 amOPO - DEN
1 stop15h 58mUnited Airlines
Deal found 5/10$1,011
Wed 6/511:36 amDEN - OPO
1 stop12h 19mUnited Airlines
Wed 6/199:00 amOPO - DEN
2 stops20h 06mUnited Airlines
Deal found 5/10$1,015
Thu 6/611:36 amDEN - OPO
1 stop12h 19mMultiple Airlines
Thu 6/1311:10 amOPO - DEN
1 stop14h 25mMultiple Airlines
Deal found 5/9$1,057
Wed 5/2912:49 pmDEN - OPO
1 stop13h 56mUnited Airlines
Sat 6/89:00 amOPO - DEN
1 stop14h 21mUnited Airlines
Deal found 5/10$1,061
Tue 6/1111:36 amDEN - OPO
1 stop12h 19mUnited Airlines
Mon 6/249:00 amOPO - DEN
2 stops21h 59mUnited Airlines
Deal found 5/10$1,065
Sun 6/25:55 pmDEN - OPO
1 stop17h 20mSWISS
Sat 6/87:20 pmOPO - DEN
1 stop28h 05mSWISS
Deal found 5/10$1,066
Wed 6/511:36 amDEN - OPO
1 stop12h 19mUnited Airlines
Wed 6/1912:35 pmOPO - DEN
1 stop15h 18mUnited Airlines
Deal found 5/9$1,068
Wed 6/55:02 amDEN - OPO
2 stops18h 53mUnited Airlines
Wed 6/199:00 amOPO - DEN
2 stops20h 06mUnited Airlines
Deal found 5/9$1,072

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 2,717,708 searches. Data last updated May 10, 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 8/206:35 pmDEN - OPO
1 stop17h 40mBritish Airways
Fri 9/138:15 amOPO - DEN
2 stops22h 14mBritish Airways
Deal found 5/9$726
Tue 8/208:00 amDEN - OPO
2 stops32h 20mLufthansa
Fri 9/136:15 amOPO - DEN
2 stops24h 44mLufthansa
Deal found 5/9$747
Wed 8/215:55 pmDEN - OPO
1 stop31h 00mSWISS
Sun 9/157:20 pmOPO - DEN
1 stop28h 00mSWISS
Deal found 5/8$779
Wed 8/215:45 pmDEN - OPO
1 stop31h 40mDelta
Fri 9/139:15 amOPO - DEN
1 stop13h 20mDelta
Deal found 5/8$801
Wed 8/211:40 pmDEN - OPO
2 stops18h 50mDelta
Fri 9/139:15 amOPO - DEN
1 stop13h 20mDelta
Deal found 5/8$805
Wed 8/215:45 pmDEN - OPO
1 stop31h 40mDelta
Tue 9/106:45 amOPO - DEN
2 stops21h 47mDelta
Deal found 5/8$813
Wed 8/211:40 pmDEN - OPO
2 stops18h 50mDelta
Fri 9/139:15 amOPO - DEN
2 stops20h 34mDelta
Deal found 5/8$814
Tue 8/206:30 amDEN - OPO
1 stop20h 15mMultiple Airlines
Fri 9/138:40 amOPO - DEN
1 stop14h 40mMultiple Airlines
Deal found 5/9$815
Wed 8/211:40 pmDEN - OPO
2 stops18h 50mDelta
Thu 9/124:20 pmOPO - DEN
1 stop30h 15mDelta
Deal found 5/8$816

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 2,717,708 searches. Data last updated May 10, 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.
Mon 9/304:40 pmDEN - OPO
3 stops32h 20mMultiple Airlines
Deal found 5/8$338
Wed 10/24:40 pmDEN - OPO
2 stops23h 50mMultiple Airlines
Deal found 5/8$339
Mon 9/304:40 pmDEN - OPO
2 stops23h 50mMultiple Airlines
Deal found 5/8$351
Wed 10/24:40 pmDEN - OPO
3 stops24h 50mMultiple Airlines
Deal found 5/8$361
Fri 9/2011:56 pmDEN - OPO
3 stops29h 04mMultiple Airlines
Deal found 5/9$415
Tue 10/112:58 amDEN - OPO
3 stops28h 02mMultiple Airlines
Deal found 5/8$422
Mon 9/3011:20 amDEN - OPO
1 stop12h 40mMultiple Airlines
Deal found 5/8$583
Fri 9/206:10 amDEN - OPO
2 stops22h 35mMultiple Airlines
Deal found 5/9$595
Fri 5/247:30 pmDEN - OPO
3 stops53h 00mMultiple Airlines
Deal found 5/9$597

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 2,717,708 searches. Data last updated May 10, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$726 - $1,009

Route

Depart

Return

Price

Denver IntlPorto

DEN - OPO

DENOPO

Denver Intl

Tue 8/20

1 stop17h 40m

Porto

Fri 9/13

2 stops22h 14m

$726

Denver IntlPorto

DEN - OPO

DENOPO

Denver Intl

Tue 8/20

2 stops32h 20m

Porto

Fri 9/13

2 stops24h 44m

$747

Denver IntlPorto

DEN - OPO

DENOPO

Denver Intl

Wed 8/21

1 stop31h 00m

Porto

Sun 9/15

1 stop28h 00m

$779

Denver IntlPorto

DEN - OPO

DENOPO

Denver Intl

Wed 8/21

1 stop31h 40m

Porto

Fri 9/13

1 stop13h 20m

$801

Denver IntlPorto

DEN - OPO

DENOPO

Denver Intl

Tue 8/20

1 stop20h 15m

Porto

Fri 9/13

1 stop14h 40m

$815

Denver IntlPorto

DEN - OPO

DENOPO

Denver Intl

Wed 8/21

2 stops17h 00m

Porto

Wed 9/11

2 stops23h 31m

$848

Denver IntlPorto

DEN - OPO

DENOPO

Denver Intl

Sun 8/25

1 stop14h 45m

Porto

Fri 9/13

1 stop13h 20m

$902

Denver IntlPorto

DEN - OPO

DENOPO

Denver Intl

Thu 8/22

2 stops16h 17m

Porto

Thu 9/12

2 stops18h 09m

$932

Denver IntlPorto

DEN - OPO

DENOPO

Denver Intl

Mon 9/23

2 stops35h 56m

Porto

Tue 10/15

2 stops39h 15m

$1,009

Flights are sorted by cheapest first

Deals found on 5/9

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 $445 while a round-trip flight costs $840. Price data was last updated on May 5, 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 $1,016). 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

$879

June

$1,016

July

$983

August

$865

September

$766

October

$694

November

$554

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 10, 2024.
See what other customers who have flown with British Airways, Lufthansa and SWISS 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
10,768 reviews
Check prices

Crew

8.6

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Food

7.4

Overall

8.1

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
10,768 reviews
Delta
8.1
Very good
10,768 reviews
Check prices

Crew

8.6

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Food

7.4

Overall

8.1

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
2,003 reviews
Delta
8.1
Very good
10,768 reviews
Check prices

Crew

8.6

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Food

7.4

Overall

8.1

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
7.6
Good
1,776 reviews
Delta
8.1
Very good
10,768 reviews
Check prices

Crew

8.6

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Food

7.4

Overall

8.1

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
3,713 reviews
Delta
8.1
Very good
10,768 reviews
Check prices

Crew

8.6

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Food

7.4

Overall

8.1

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.

United Airlines
7.4
Good
11,016 reviews
Delta
8.1
Very good
10,768 reviews
Check prices

Crew

8.6

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Food

7.4

Overall

8.1

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 British Airways for just $726, but on average you can expect to pay $834.

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

    Currently priced at $726, British Airways will fly you from Denver to Porto and back. In addition to British Airways, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Lufthansa and SWISS - these airlines can fly you to your destination from $747 and $779, respectively. British Airways is currently priced 34% below the average price you’ll pay for this route.

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

    The cheapest airlines for a one-way flight from Denver to Porto are United Airlines ($756), American Airlines ($775), and SWISS ($4,386).

  • 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 5/9.

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 2,717,708 searches. Data last updated May 10, 2024.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$502Average$1,160FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
British AirwaysCheapest$504Average$1,177FlexibilityNo 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$1,213FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapest$717Average$1,320FlexibilityNo cancel feeOn-time69%
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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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