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$239+ Cheap flights from Wisconsin to Porto (OPO)

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 10/12. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — OPO
Aug 25 — Sep 11
Mon 8/25
Mon 9/1
1 adult, Economy
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Cheap flight deals from Wisconsin to Porto

Keep the following information in mind while searching for Wisconsin to Porto flight deals. Data was last updated August 20, 2025.

Round-trip from

$361
(oojo)

One-way from

$239
(Kiwi.com)
From Wisconsin to Porto
Search Deals
One-way flight from Wisconsin to Porto
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Find flight deals from Wisconsin to Porto

Cheapest flights from Wisconsin to Porto
Explore the most affordable flight options available from Wisconsin to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 20, 2025.

This oojo deal was found by Cheapflights users on 8/20. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/277:20 pmORD - OPO
1 stop15h 35mScandinavian Airlines
Fri 12/125:45 pmOPO - ORD
1 stop29h 00mScandinavian Airlines
Deal found 8/20$361
This Scandinavian Airlines deal was found by Cheapflights users on 8/20. 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.
Sun 11/167:20 pmORD - OPO
1 stop15h 25mScandinavian Airlines
Fri 12/55:45 pmOPO - ORD
1 stop29h 00mScandinavian Airlines
Deal found 8/20$395
This Scandinavian Airlines deal was found by Cheapflights users on 8/20. 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.
Sun 11/307:20 pmORD - OPO
1 stop15h 25mScandinavian Airlines
Fri 12/125:45 pmOPO - ORD
1 stop29h 00mScandinavian Airlines
Deal found 8/20$433
This Scandinavian Airlines deal was found by Cheapflights users on 8/20. 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.
Thu 11/207:20 pmORD - OPO
1 stop15h 35mScandinavian Airlines
Fri 12/55:45 pmOPO - ORD
1 stop29h 00mScandinavian Airlines
Deal found 8/20$463
This oojo deal was found by Cheapflights users on 8/18. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/237:20 pmORD - OPO
1 stop15h 25mScandinavian Airlines
Fri 11/285:45 pmOPO - ORD
1 stop29h 00mScandinavian Airlines
Deal found 8/18$469
This lol.travel deal was found by Cheapflights users on 8/20. 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.
Mon 9/226:10 pmORD - OPO
1 stop18h 50mTAP AIR PORTUGAL
Wed 10/89:15 pmOPO - ORD
1 stop21h 20mTAP AIR PORTUGAL
Deal found 8/20$476
This FlightHub deal was found by Cheapflights users on 8/18. 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.
Thu 10/27:15 pmORD - OPO
1 stop15h 50mScandinavian Airlines
Fri 11/215:45 pmOPO - ORD
1 stop29h 00mScandinavian Airlines
Deal found 8/18$481
This United Airlines deal was found by Cheapflights users on 8/18. 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.
Wed 11/194:20 pmORD - OPO
1 stop11h 10mUnited Airlines
Wed 11/266:00 amOPO - ORD
1 stop20h 05mUnited Airlines
Deal found 8/18$485
This oojo deal was found by Cheapflights users on 8/19. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/296:10 pmORD - OPO
1 stop22h 45mTAP AIR PORTUGAL
Wed 10/159:15 pmOPO - ORD
1 stop21h 20mTAP AIR PORTUGAL
Deal found 8/19$487
This United Airlines deal was found by Cheapflights users on 8/20. 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.
Mon 11/171:00 pmORD - OPO
2 stops14h 30mUnited Airlines
Fri 12/512:30 pmOPO - ORD
1 stop13h 35mUnited Airlines
Deal found 8/20$489
This United Airlines deal was found by Cheapflights users on 8/20. 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.
Sun 11/168:50 amORD - OPO
2 stops18h 40mUnited Airlines
Wed 12/1012:30 pmOPO - ORD
1 stop13h 35mUnited Airlines
Deal found 8/20$495
This United deal was found by Cheapflights users on 8/19. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/267:15 amORD - OPO
1 stop21h 15mMultiple Airlines
Tue 11/46:00 amOPO - ORD
1 stop13h 10mMultiple Airlines
Deal found 8/19$496

Cheapflights Fare Finder

 
Customize your flight search to find flights from Wisconsin 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 2,558,603 searches. Data last updated August 20, 2025.
Use the filters below to find and compare flights from Wisconsin to Porto that are best for you.

Fly from

Wisconsin

Fly to

Porto

Route

Depart

Return

Price

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Thu 11/27

7:20 pm-4:55 pm

1 stop15h 35m

Porto

Fri 12/12

5:45 pm-4:45 pm

1 stop29h 00m

$361

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Sun 11/16

7:20 pm-4:45 pm

1 stop15h 25m

Porto

Fri 12/5

5:45 pm-4:45 pm

1 stop29h 00m

$395

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Sun 11/30

7:20 pm-4:45 pm

1 stop15h 25m

Porto

Fri 12/12

5:45 pm-4:45 pm

1 stop29h 00m

$433

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Thu 11/20

7:20 pm-4:55 pm

1 stop15h 35m

Porto

Fri 12/5

5:45 pm-4:45 pm

1 stop29h 00m

$463

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Mon 9/22

6:10 pm-7:00 pm

1 stop18h 50m

Porto

Wed 10/8

9:15 pm-12:35 pm

1 stop21h 20m

$476

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Thu 10/2

7:15 pm-5:05 pm

1 stop15h 50m

Porto

Fri 11/21

5:45 pm-4:45 pm

1 stop29h 00m

$481

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Wed 11/19

4:20 pm-9:30 am

1 stop11h 10m

Porto

Wed 11/26

6:00 am-8:05 pm

1 stop20h 05m

$485

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Mon 11/24

2:30 pm-9:30 am

1 stop13h 00m

Porto

Tue 12/9

6:00 am-1:10 pm

1 stop13h 10m

$485

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Tue 11/25

5:31 pm-9:30 am

1 stop9h 59m

Porto

Tue 12/9

6:00 am-1:10 pm

1 stop13h 10m

$485

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Tue 11/18

5:31 pm-9:30 am

1 stop9h 59m

Porto

Fri 12/5

12:30 pm-8:05 pm

1 stop13h 35m

$485

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/18

Showing 1-10 of 53 results
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Best time to book a flight from Wisconsin to Porto

Have a flexible travel schedule? Discover the best time to fly to Porto from Wisconsin 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 Wisconsin to Porto
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Wisconsin to Porto. 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 into for flights to Porto from Wisconsin?

    Porto (OPO) is the airport you will fly into if you book a flight from Wisconsin to Porto. It is only a 6.8 mi journey from Porto (OPO) to Porto’s city center.

  • How long is the flight from Wisconsin to Porto?

    A quick flight from Wisconsin to Porto can take about 13h 45m. Scandinavian Airlines provides one of the quickest options available for as low as $594. Airlines will cover a distance of 3900 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the most popular routes from Wisconsin to Porto?

    Most travelers choose Chicago O'Hare Intl - Porto, Minneapolis St Paul - Porto or Madison Truax Field - Porto when deciding on the best route from Wisconsin to Porto.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Wisconsin 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.

  • What is the cheapest month to book a flight from Wisconsin to Porto?

    Currently, January is the cheapest month in which you can book a flight from Wisconsin to Porto (average of $523). Flying from Wisconsin to Porto in June is currently the most expensive (average of $1,030). 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

Traveling to a place near Porto?

Book flights to Porto if you plan to visit one of these locations
Aveiro
Arcos de Valdevez
Coimbra

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