OPO - DEN

$519 Find Cheap Flights from Porto to Denver - Compare and Save

1 adult
1 adult, Economy, 0 bags

Save 21% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Everything you should know

Cheapest round-trip
$855
Typical prices: $844-$1,169
Air France
Wed 10/10Wed 10/17
OPO - DEN • 1 stop
Cheapest one-way
$519
Typical prices: $796-$1,087
Multiple Airlines
Sun 10/21
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
Insights
When to travel
March
Cheapest • 26% price drop
February
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Newark (EWR)
Cheapest • Avg $1,026 (round-trip)
New York John F Kennedy Intl (JFK)
Shortest trip • 14h 01m (one-way)
Insights
Insights
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Denver!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Porto to Denver (OPO-DEN)

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

Recent round-trip flight deals from Porto to Denver

Sat, Oct 10 - Sat, Oct 17
Air France Logo
5:55 am - 3:40 pmOPO  Porto-DEN Denver Intl
16h 45m1 stop Paris Charles de Gaulle
Air France Logo
12:30 pm - 10:20 amDEN  Denver Intl-OPO Porto
14h 50m1 stop New York John F Kennedy Intl
$855Air France
Sat, Nov 7 - Fri, Nov 13
Multiple Airlines Logo
9:55 pm - 6:00 pmOPO  Porto-DEN Denver Intl
27h 05m3 stops Barcelona-El Prat London Gatwick Reykjavik Keflavik Intl
Multiple Airlines Logo
3:40 pm - 7:30 amDEN  Denver Intl-OPO Porto
32h 50m3 stops Reykjavik Keflavik Intl London Heathrow Lisbon Humberto Delgado
$870Multiple Airlines
Thu, Mar 11 - Mon, Mar 22
Multiple Airlines Logo
5:00 am - 3:56 pmOPO  Porto-DEN Denver Intl
17h 56m2 stops Amsterdam Schiphol Minneapolis St Paul
Multiple Airlines Logo
12:00 pm - 10:35 amDEN  Denver Intl-OPO Porto
16h 35m2 stops Atlanta Hartsfield-Jackson Paris Charles de Gaulle
$896Multiple Airlines
Thu, Oct 8 - Thu, Oct 15
Delta Logo
5:00 am - 3:49 pmOPO  Porto-DEN Denver Intl
17h 49m2 stops Amsterdam Schiphol Minneapolis St Paul
Delta Logo
6:35 am - 8:30 amDEN  Denver Intl-OPO Porto
18h 55m2 stops New York John F Kennedy Intl Paris Charles de Gaulle
$898Delta
Sat, Oct 10 - Sat, Oct 17
Delta Logo
5:55 am - 3:40 pmOPO  Porto-DEN Denver Intl
16h 45m1 stop Paris Charles de Gaulle
Delta Logo
12:30 pm - 3:25 pmDEN  Denver Intl-OPO Porto
19h 55m2 stops New York John F Kennedy Intl Paris Charles de Gaulle
$899Delta
Thu, Oct 8 - Thu, Oct 15
Delta Logo
5:00 am - 3:49 pmOPO  Porto-DEN Denver Intl
17h 49m2 stops Amsterdam Schiphol Minneapolis St Paul
Delta Logo
6:35 am - 10:30 amDEN  Denver Intl-OPO Porto
20h 55m1 stop New York John F Kennedy Intl
$902Delta
Fri, Mar 12 - Sun, Mar 21
American Airlines Logo
8:40 pm - 8:12 amOPO  Porto-DEN Denver Intl
18h 32m2 stops Madrid Barajas Dallas/Fort Worth
American Airlines Logo
9:02 am - 7:40 amDEN  Denver Intl-OPO Porto
16h 38m2 stops Dallas/Fort Worth Madrid Barajas
$924American Airlines
Sat, Nov 7 - Fri, Nov 13
Multiple Airlines Logo
10:15 am - 8:13 pmOPO  Porto-DEN Denver Intl
16h 58m1 stop New York John F Kennedy Intl
Multiple Airlines Logo
7:05 am - 8:15 amDEN  Denver Intl-OPO Porto
18h 10m1 stop New York John F Kennedy Intl
$933Multiple Airlines
Sat, Oct 10 - Sat, Oct 17
Multiple Airlines Logo
7:00 am - 6:46 pmOPO  Porto-DEN Denver Intl
18h 46m2 stops Nantes Atlantique Montreal Pierre Elliott Trudeau Intl
Multiple Airlines Logo
4:05 pm - 8:00 amDEN  Denver Intl-OPO Porto
32h 55m3 stops Munich Franz Josef Strauss Nantes Atlantique Barcelona-El Prat
$939Multiple Airlines
Sat, Mar 13 - Mon, Mar 22
Multiple Airlines Logo
6:15 am - 10:22 amOPO  Porto-DEN Denver Intl
35h 07m2 stops Madrid Barajas Santiago de Querétaro
Multiple Airlines Logo
5:15 pm - 12:50 pmDEN  Denver Intl-OPO Porto
13h 35m1 stop Munich Franz Josef Strauss
$954Multiple Airlines
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 from Porto to Denver with more confidence.

How much is a round-trip flight from Porto to Denver?

Round-trip flights from Porto to Denver start at $855. Prices are typical for this route right now, with typical round-trip fares ranging from $844 to $1,169. The lowest price found in the past 5 days was $855 on Air France.

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

Monday is the cheapest day of the week to fly from Porto to Denver, it is 38% cheaper than the average day. Sunday is the most expensive day with flight prices 63% higher than average. Based on deals found by KAYAK users in the last 12 months.

Find deals

Key details for Porto to Denver flights

Low season

September

Cheapest flight

$519
Best time to beat the crowds but there is an average 8% increase in price.
Most popular time to fly with an average 11% increase in price.
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

Your Porto to Denver flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • 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?

    Two cabin classes are available on flights from Porto to Denver:

    • Economy Class
    • Business Class

  • 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) - 73% of one-stop connections
    • Newark (EWR) - 18% of one-stop connections
    • New York John F Kennedy Intl (JFK) - 9% of one-stop connections

    Frankfurt am Main (FRA) handles the largest share of one-stop connections on this route.

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

    Yes. Being flexible with your travel dates can save you up to 62% on the Porto to Denver route. Monday is the cheapest departure day at $673 round-trip on average, while Sunday is the most expensive at $1,765, a difference of $1,092. 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, Union Station Denver and Coors Field. 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 0h 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 $855 to $3,934. That means the highest observed fare was about 5x 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 $601, which is 40% 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 47m, compared with 14h 01m via New York John F Kennedy Intl (JFK) and 15h 53m via Frankfurt am Main (FRA).

  • What is the time difference between Porto and Denver?

    Denver is 7 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 starting from around $16 for economy cars. Top options include:
    • Routes Car & Truck Rentals
    • Ace
    • NU Car
    • Europcar
    • Hertz

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

    Round-trip flights from Porto to Denver range from $844 to $1,169, with an average of $1,079 over the past 12 months. Anything below $844 counts as a good deal.

Your guide to booking Porto to Denver flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Monday departure instead of Sunday. On this route, Monday flights average $673 - about $1,092 less than Sunday (62% 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 $416 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

More options for your flight from Porto to Denver

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

Car rentals in Denver
Hotels in Denver
Vacations in Denver