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$293+ 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 8/18. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — OPO
may. 6 — may. 131
mar. 5/6
mar. 5/13
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 mayo 1, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
2 stars

Round-trip from

$565
(United)

One-way from

$293
(Kiwi.com)
Provider with most accurate pricing for Milwaukee-Mitchell-Porto flight deals.
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Provider most trusted by Cheapflights users for Milwaukee-Mitchell-Porto flights.
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From Wisconsin to Porto
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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 mayo 1, 2025.

This United deal was found by Cheapflights users on 4/30. 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.
mié. 8/206:00 amORD - OPO
1 stop21h 45mMultiple Airlines
jue. 8/2812:10 pmOPO - ORD
1 stop32h 41mMultiple Airlines
Deal found 4/30$565
This Booking.com deal was found by Cheapflights users on 4/30. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/201:55 pmORD - OPO
2 stops13h 25mAir Canada
jue. 8/2812:10 pmOPO - ORD
2 stops25h 50mAir Canada
Deal found 4/30$572
This oojo deal was found by Cheapflights users on 4/30. 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.
sáb. 9/206:15 pmORD - OPO
1 stop14h 45mTAP AIR PORTUGAL
vie. 9/269:00 amOPO - ORD
1 stop13h 30mTAP AIR PORTUGAL
Deal found 4/30$577
This United Airlines deal was found by Cheapflights users on 4/30. 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.
vie. 12/126:25 pmORD - OPO
1 stop14h 50mUnited Airlines
lun. 12/2212:30 pmOPO - ORD
1 stop30h 55mUnited Airlines
Deal found 4/30$587
This Gurufare deal was found by Cheapflights users on 4/30. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/267:00 amORD - OPO
2 stops22h 00mScandinavian Airlines
vie. 9/55:55 pmOPO - ORD
1 stop28h 15mScandinavian Airlines
Deal found 4/30$598
This Orbitz deal was found by Cheapflights users on 4/30. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/2910:25 pmORD - OPO
1 stop20h 10mLufthansa
dom. 11/96:00 amOPO - ORD
1 stop13h 25mLufthansa
Deal found 4/30$604
This American Airlines deal was found by Cheapflights users on 4/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/104:30 pmORD - OPO
1 stop13h 10mAmerican Airlines
mar. 10/218:15 amOPO - ORD
2 stops19h 10mAmerican Airlines
Deal found 4/29$607
This oojo deal was found by Cheapflights users on 4/30. 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.
mar. 9/167:50 pmORD - OPO
1 stop38h 00mTurkish Airlines
mar. 9/3010:50 amOPO - ORD
1 stop28h 50mTurkish Airlines
Deal found 4/30$610
This CrystalTravel deal was found by Cheapflights users on 4/30. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/272:20 pmORD - OPO
1 stop15h 05mSWISS
jue. 9/48:40 amOPO - ORD
1 stop13h 15mSWISS
Deal found 4/30$625
This FlightHub deal was found by Cheapflights users on 4/30. 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.
sáb. 11/16:35 pmMSP - OPO
2 stops36h 05mMultiple Airlines
mié. 11/127:30 pmOPO - MSP
2 stops32h 59mMultiple Airlines
Deal found 4/30$626
This American Airlines deal was found by Cheapflights users on 4/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/2112:10 pmMSP - OPO
2 stops17h 30mAmerican Airlines
vie. 10/318:40 pmOPO - MSP
2 stops18h 56mAmerican Airlines
Deal found 4/30$627
This Expedia deal was found by Cheapflights users on 4/30. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 7/94:30 pmORD - OPO
1 stop17h 25mIberia
mié. 7/164:35 pmOPO - ORD
2 stops27h 55mIberia
Deal found 4/30$646

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 mayo 1, 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

jue. 10/9

6:00 pm-6:55 pm

1 stop18h 55m

Porto

vie. 10/24

9:00 am-4:10 pm

1 stop13h 10m

$567

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

mar. 9/16

6:06 pm-9:20 am

2 stops33h 14m

Porto

mar. 9/30

12:50 pm-9:51 am

1 stop27h 01m

$572

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

lun. 10/13

10:30 pm-11:20 pm

2 stops18h 50m

Porto

mar. 11/11

12:30 pm-8:05 pm

1 stop13h 35m

$593

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

mar. 8/26

7:00 am-11:00 am

2 stops22h 00m

Porto

vie. 9/5

5:55 pm-4:10 pm

1 stop28h 15m

$598

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

vie. 10/10

4:30 pm-11:40 am

1 stop13h 10m

Porto

mar. 10/21

8:15 am-9:25 pm

2 stops19h 10m

$607

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

jue. 9/18

11:25 am-9:45 am

1 stop16h 20m

Porto

mar. 10/7

10:50 am-9:40 am

1 stop28h 50m

$610

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

mié. 9/3

8:40 am-9:20 am

1 stop18h 40m

Porto

mar. 9/9

12:15 pm-3:55 pm

1 stop33h 40m

$619

MinneapolisPorto

MSP - OPO

MSPOPO

Minneapolis St Paul

mar. 10/21

12:10 pm-11:40 am

2 stops17h 30m

Porto

vie. 10/31

8:40 pm-10:36 am

2 stops18h 56m

$627

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

dom. 8/31

4:50 pm-9:45 am

1 stop10h 55m

Porto

mar. 9/9

12:50 pm-8:01 am

1 stop25h 11m

$645

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

mié. 7/9

4:30 pm-3:55 pm

1 stop17h 25m

Porto

mié. 7/16

4:35 pm-2:30 pm

2 stops27h 55m

$646

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 56 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

What is the cheapest time of day to fly from WI to OPO?

Find hourly flight availability from Wisconsin to Porto. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated mayo 1, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Wisconsin to Porto as you normally would.

Rainfall in Porto by month

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

In terms of precipitation, rainfall in Porto ranges from 0.7 - 7.7 inches per month. December is typically the wettest month, when rainfall can reach 7.7 in. July is typically the driest time to visit Porto when rainfall is around 0.7 in.

Temperature in Porto by month

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

If weather is an important factor for your trip to Porto, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 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 mayo 1, 2025.
See what other customers who have flown with Delta, KLM and Austrian Airlines from Wisconsin to Porto have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,934 reviews

Overall

8.0

Entertainment

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,934 reviews
Delta
8.0
Very good
7,934 reviews

Overall

8.0

Entertainment

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,334 reviews
Delta
8.0
Very good
7,934 reviews

Overall

8.0

Entertainment

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Austrian Airlines
7.6
Good
781 reviews
Delta
8.0
Very good
7,934 reviews

Overall

8.0

Entertainment

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
SWISS
7.5
Good
1,588 reviews
Delta
8.0
Very good
7,934 reviews

Overall

8.0

Entertainment

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air France
7.4
Good
1,446 reviews
Delta
8.0
Very good
7,934 reviews

Overall

8.0

Entertainment

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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.

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

    The cheapest airlines for a one-way flight from Wisconsin to Porto are TAP AIR PORTUGAL ($304), British Airways ($479), and American Airlines ($485).

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

    Most travelers choose Chicago O'Hare Intl - Porto, Minneapolis St Paul - Porto or Milwaukee-Mitchell - 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 $1,071). 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 Wisconsin?

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

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Alternative routes for Wisconsin to Porto

See prices for flight routes from nearby airports that may be better suited for you.
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