Which airports can I use when flying from Porto to Denver?

Flights from Porto to Denver usually depart from Porto (OPO) and arrive at Denver Intl (DEN).

What cabin classes can I book on flights from Porto to Denver?

Only Economy Class is available on flights from Porto to Denver.

Which airports do connecting flights from Porto to Denver pass through?

One-stop flights from Porto to Denver most commonly connect through: • Frankfurt am Main (FRA) - 50% of one-stop connections • Newark (EWR) - 38% of one-stop connections • New York John F Kennedy Intl (JFK) - 13% of one-stop connections

Can I save money by using flexible dates for flights from Porto to Denver?

Yes. Flexible dates can save you up to 55% on flights from Porto to Denver. Monday is the cheapest departure day at $795 round-trip on average, while Sunday is the most expensive at $1,765, a difference of $970. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

What popular places can I visit in Denver?

Some of the most popular sights in Denver are Colorado Convention Center, Coors Field and Ball Arena. These are among the most viewed places in Denver on KAYAK.

How long is a flight from Porto to Denver?

A nonstop flight from Porto to Denver takes 00m, covering 4,747 miles.

Do I need a passport to fly from Porto to Denver?

Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

Have flight prices from Porto to Denver changed much recently?

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $772 to $7,345. That means the highest observed fare was about 10x higher than the lowest one.

How are flight prices from Porto to Denver looking right now?

One-way fares from Porto to Denver are currently lower than usual. Average one-way flight prices are about $622, which is 42% below the typical average for this route.

How much time can I save by choosing a different layover airport from Porto to Denver?

Flying via Newark (EWR) gives the shortest average 1-stop total travel time at 13h 30m, compared with 14h 01m via New York John F Kennedy Intl (JFK) and 14h 30m via Frankfurt am Main (FRA).

What is the time difference between Porto and Denver?

Denver is 6 hours behind Porto (Mountain Time vs Western European Time). Plan for the time shift when scheduling connections or first-day activities.

What car rental options are available at Denver Intl Airport (DEN)?

Denver Intl Airport (DEN) hosts 5 major car rental companies, with daily rates averaging $56 for economy cars. Top options include: • Routes Car & Truck Rentals • Ace • Europcar • NU Car • Hertz

How much should I expect to pay for a Porto to Denver flight?

Round-trip flights from Porto to Denver range from $888 to $1,200, with an average of $1,026 over the past 12 months. Anything below $888 counts as a good deal.

What's the cheapest day of the week to fly from Porto to Denver?

Based on deals KAYAK users found in the last 12 months, Monday is the cheapest day of the week to fly from Porto to Denver. It’s 23% cheaper than the average day, while Sunday is the most expensive, with prices 72% higher.

Which airline is the cheapest to fly from Porto to Denver?

TAP AIR PORTUGAL ($958) and Delta ($983) are the cheapest airlines to fly round-trip from Porto to Denver according to KAYAK data over the last 5 days.

What’s the most popular layover airport when flying from Porto to Denver?

Frankfurt am Main (FRA) is the most popular layover for the Porto to Denver route. 50% of KAYAK users who booked 1-stop round-trips over the past 3 months connected via FRA.

What is the cheapest layover airport when flying from Porto to Denver?

Flights via Newark (EWR) offer the most affordable fares, with an average round-trip price of $1,086. Based on KAYAK data over the past 3 months.

When flying from Porto to Denver which airport offers the shortest layover?

Newark (EWR) had the shortest average connection time for Porto to Denver layovers at 7h 34m over the past 3 months.

$534 CHEAP FLIGHTS from Porto to Denver (OPO - DEN)

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Cheapest round-trip

$772

Typical prices: $888-$1,200

Multiple Airlines

Fri 11/9Fri 11/16

OPO - DEN • 3 stops

Cheapest one-way

$534

Typical prices: $880-$1,140

Multiple Airlines

Wed 12/19

OPO - DEN • 3 stops

Nonstop flights

Not available

There are currently no direct flights between Porto and Denver. You'll need to take a connecting flight to reach the destination.

Insights

When to travel

March

Cheapest • 23% price drop

February

Most popular

Good to know

Top layover airports

Newark (EWR)

Cheapest • Avg $1,086 (round-trip)

New York John F Kennedy Intl (JFK)

Shortest trip • 14h 01m (one-way)

Insights

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We hope you love your trip to Denver!

Flight Deals

Cheap Flights from Porto to Denver (OPO-DEN)

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip flight deals from Porto to Denver

Mon, Nov 9 - Mon, Nov 16

11:35 am - 8:22 amOPO Porto-DEN Denver Intl

27h 47m3 stops Madrid Barajas Miami Atlanta Hartsfield-Jackson

6:10 am - 7:20 pmDEN Denver Intl-OPO Porto

30h 10m3 stops Houston George Bush Intcntl Miami Madrid Barajas

$772Multiple Airlines

Mon, Nov 9 - Mon, Nov 16

7:35 am - 8:29 amOPO Porto-DEN Denver Intl

31h 54m2 stops Madrid Barajas Miami

6:10 am - 3:15 pmDEN Denver Intl-OPO Porto

26h 05m3 stops Houston George Bush Intcntl Miami Madrid Barajas

$782Multiple Airlines

Thu, Nov 19 - Tue, Dec 1

7:00 am - 10:46 pmOPO Porto-DEN Denver Intl

22h 46m2 stops Lisbon Humberto Delgado Boston Logan Intl

1:01 pm - 6:00 pmDEN Denver Intl-OPO Porto

21h 59m2 stops New York John F Kennedy Intl Lisbon Humberto Delgado

$958TAP AIR PORTUGAL

Fri, Nov 20 - Tue, Dec 1

6:15 am - 8:24 amOPO Porto-DEN Denver Intl

33h 09m3 stops Madrid Barajas Casablanca Mohamed V Miami

1:54 pm - 7:20 pmDEN Denver Intl-OPO Porto

22h 26m3 stops Los Angeles Lisbon Humberto Delgado Madrid Barajas

$968Multiple Airlines

Wed, Nov 18 - Mon, Nov 30

5:00 am - 5:10 pmOPO Porto-DEN Denver Intl

19h 10m2 stops Amsterdam Schiphol Salt Lake City

11:08 am - 10:35 amDEN Denver Intl-OPO Porto

16h 27m2 stops Minneapolis St Paul Paris Charles de Gaulle

$983Delta

Fri, Nov 20 - Tue, Dec 1

6:15 am - 8:24 amOPO Porto-DEN Denver Intl

33h 09m3 stops Madrid Barajas Casablanca Mohamed V Miami

9:50 am - 6:00 pmDEN Denver Intl-OPO Porto

25h 10m2 stops Los Angeles Lisbon Humberto Delgado

$984Multiple Airlines

Fri, Nov 20 - Wed, Dec 2

5:00 am - 8:11 pmOPO Porto-DEN Denver Intl

22h 11m2 stops Amsterdam Schiphol Minneapolis St Paul

12:36 pm - 8:15 amDEN Denver Intl-OPO Porto

12h 39m1 stop New York John F Kennedy Intl

$987Delta

Fri, Nov 20 - Tue, Dec 1

8:30 am - 10:46 pmOPO Porto-DEN Denver Intl

21h 16m2 stops Lisbon Humberto Delgado Boston Logan Intl

1:01 pm - 1:30 pmDEN Denver Intl-OPO Porto

17h 29m2 stops New York John F Kennedy Intl Lisbon Humberto Delgado

$988TAP AIR PORTUGAL

Mon, Nov 9 - Mon, Nov 16

6:25 am - 8:25 pmOPO Porto-DEN Denver Intl

21h 00m2 stops Paris Charles de Gaulle New York John F Kennedy Intl

8:10 am - 10:35 amDEN Denver Intl-OPO Porto

19h 25m2 stops Atlanta Hartsfield-Jackson Paris Charles de Gaulle

$989Delta

Mon, Nov 9 - Mon, Nov 16

6:25 am - 11:15 pmOPO Porto-DEN Denver Intl

23h 50m2 stops Paris Charles de Gaulle Atlanta Hartsfield-Jackson

6:00 am - 10:35 amDEN Denver Intl-OPO Porto

21h 35m2 stops Atlanta Hartsfield-Jackson Paris Charles de Gaulle

$994Delta

Booking Insights

Price, demand and travel trends for Porto to Denver flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

Prices

Airlines

Layovers

What's the cheapest day of the week to fly from Porto to Denver?: Based on deals KAYAK users found in the last 12 months, Monday is the cheapest day of the week to fly from Porto to Denver. It’s 23% cheaper than the average day, while Sunday is the most expensive, with prices 72% higher.

Find deals

Low season	July
High season	February
Cheapest flight	$534

Beat the crowds with an average 67% drop in travelers.

The most popular month to fly with an average 50% increase in travelers.

One-way flight from Porto to Denver

When to book flights from Porto to Denver

Are your dates flexible? Find out the best times to travel from Porto to Denver based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated round-trip price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

What cabin classes can I book on flights from Porto to Denver?
Only Economy Class is available on flights from Porto to Denver.
How long is a flight from Porto to Denver?
A nonstop flight from Porto to Denver takes 00m, covering 4,747 miles.
Do I need a passport to fly from Porto to Denver?
Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.
How much should I expect to pay for a Porto to Denver flight?
Round-trip flights from Porto to Denver range from $888 to $1,200, with an average of $1,026 over the past 12 months. Anything below $888 counts as a good deal.
Have flight prices from Porto to Denver changed much recently?
Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $772 to $7,345. That means the highest observed fare was about 10x higher than the lowest one.
How are flight prices from Porto to Denver looking right now?
One-way fares from Porto to Denver are currently lower than usual. Average one-way flight prices are about $622, which is 42% below the typical average for this route.
What car rental options are available at Denver Intl Airport (DEN)?
Denver Intl Airport (DEN) hosts 5 major car rental companies, with daily rates averaging $56 for economy cars. Top options include:

• Routes Car & Truck Rentals
• Ace
• Europcar
• NU Car
• Hertz
Which airports can I use when flying from Porto to Denver?
Flights from Porto to Denver usually depart from Porto (OPO) and arrive at Denver Intl (DEN).
Which airports do connecting flights from Porto to Denver pass through?
One-stop flights from Porto to Denver most commonly connect through:

• Frankfurt am Main (FRA) - 50% of one-stop connections
• Newark (EWR) - 38% of one-stop connections
• New York John F Kennedy Intl (JFK) - 13% of one-stop connections
Can I save money by using flexible dates for flights from Porto to Denver?
Yes. Flexible dates can save you up to 55% on flights from Porto to Denver. Monday is the cheapest departure day at $795 round-trip on average, while Sunday is the most expensive at $1,765, a difference of $970.

KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.
How much time can I save by choosing a different layover airport from Porto to Denver?
Flying via Newark (EWR) gives the shortest average 1-stop total travel time at 13h 30m, compared with 14h 01m via New York John F Kennedy Intl (JFK) and 14h 30m via Frankfurt am Main (FRA).
What is the time difference between Porto and Denver?
Denver is 6 hours behind Porto (Mountain Time vs Western European Time). Plan for the time shift when scheduling connections or first-day activities.
What popular places can I visit in Denver?
Some of the most popular sights in Denver are Colorado Convention Center, Coors Field and Ball Arena. These are among the most viewed places in Denver on KAYAK.

If your dates are flexible, aim for a Monday departure and avoid flying on Sunday. On this route, Monday flights average $795, about $970 less than Sunday fares (55% savings) based on the last 12 months.
If you can choose when to travel, plan your Porto to Denver trip for March. Fares historically average $795 round-trip in that month - typically $449 less than the most expensive month, which is December (based on the last 12 months).
If you're arriving late at night and need somewhere to stay, check out these hotels close to Denver Intl Airport.

• The Westin Denver International Airport

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OPO - DEN

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Everything you should know

Cheap Flights from Porto to Denver (OPO-DEN)

Recent round-trip flight deals from Porto to Denver

Recent one-way flight deals from Porto to Denver

Recent last minute flight deals from Porto to Denver

Price, demand and travel trends for Porto to Denver flights

What's the cheapest day of the week to fly from Porto to Denver?

Which airline is the cheapest to fly from Porto to Denver?

What’s the most popular layover airport when flying from Porto to Denver?

What is the cheapest layover airport when flying from Porto to Denver?

When flying from Porto to Denver which airport offers the shortest layover?

Key details for Porto to Denver flights

Low season

High season

Cheapest flight

When to book flights from Porto to Denver

Your Porto to Denver flight questions, answered

Your guide to booking Porto to Denver flights

More options for your flight from Porto to Denver

Complete your trip to Denver with a hotel stay or car rental

Information on your arrival and departure airports

Cabin class types available on flights from Porto to Denver

Find direct flights to and from Porto and Denver

Flights from domestic origins to Denver

Flights to other popular destinations

Find deals for your return flight