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$248+ 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 4/29. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — OPO
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap 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 January 29, 2026.

This oojo deal was found by Cheapflights users on 1/27. 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 5/36:00 pm
ORD
-
OPO
1 stop17h 00m
TAP AIR PORTUGAL
Sat 5/165:05 am
OPO
-
ORD
1 stop17h 10m
TAP AIR PORTUGAL
Deal found 1/27$372
This Mytrip deal was found by Cheapflights users on 1/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/296:00 pm
ORD
-
OPO
1 stop23h 10m
TAP AIR PORTUGAL
Wed 5/610:00 am
OPO
-
ORD
1 stop12h 00m
TAP AIR PORTUGAL
Deal found 1/27$379
This Mytrip deal was found by Cheapflights users on 1/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/196:00 pm
ORD
-
OPO
1 stop24h 40m
TAP AIR PORTUGAL
Sat 4/257:00 am
OPO
-
ORD
1 stop15h 15m
TAP AIR PORTUGAL
Deal found 1/29$384
This Tripair deal was found by Cheapflights users on 1/28. 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 Tripair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/18:25 pm
ORD
-
OPO
1 stop15h 40m
TAP AIR PORTUGAL
Sat 2/148:00 pm
OPO
-
ORD
1 stop24h 45m
TAP AIR PORTUGAL
Deal found 1/28$388
This FlightHub deal was found by Cheapflights users on 1/27. 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.
Wed 4/296:00 pm
ORD
-
OPO
1 stop11h 00m
TAP AIR PORTUGAL
Tue 5/59:15 pm
OPO
-
ORD
1 stop24h 45m
TAP AIR PORTUGAL
Deal found 1/27$389
This Gotogate deal was found by Cheapflights users on 1/26. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/156:00 pm
ORD
-
OPO
1 stop15h 00m
TAP AIR PORTUGAL
Fri 5/19:00 am
OPO
-
ORD
1 stop13h 00m
TAP AIR PORTUGAL
Deal found 1/26$390
This Booking.com deal was found by Cheapflights users on 1/28. 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.
Sun 5/106:00 pm
ORD
-
OPO
1 stop19h 00m
TAP AIR PORTUGAL
Wed 5/209:00 am
OPO
-
ORD
1 stop13h 00m
TAP AIR PORTUGAL
Deal found 1/28$392
This Kiwi.com deal was found by Cheapflights users on 1/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/266:00 pm
ORD
-
OPO
1 stop17h 00m
TAP AIR PORTUGAL
Sun 5/35:05 am
OPO
-
ORD
1 stop16h 55m
TAP AIR PORTUGAL
Deal found 1/27$399
This Kiwi.com deal was found by Cheapflights users on 1/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/296:00 pm
ORD
-
OPO
1 stop11h 00m
TAP AIR PORTUGAL
Fri 5/85:05 am
OPO
-
ORD
1 stop16h 55m
TAP AIR PORTUGAL
Deal found 1/27$404
This Kiwi.com deal was found by Cheapflights users on 1/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/266:00 pm
ORD
-
OPO
1 stop20h 25m
TAP AIR PORTUGAL
Wed 5/69:00 am
OPO
-
ORD
1 stop13h 00m
TAP AIR PORTUGAL
Deal found 1/27$407
This Mytrip deal was found by Cheapflights users on 1/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/117:10 pm
ORD
-
OPO
1 stop11h 55m
TAP AIR PORTUGAL
Sun 2/155:00 am
OPO
-
ORD
1 stop15h 45m
TAP AIR PORTUGAL
Deal found 1/29$468
This United Airlines deal was found by Cheapflights users on 1/28. 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.
Thu 2/2611:39 am
MKE
-
OPO
1 stop15h 51m
United Airlines
Mon 3/212:30 pm
OPO
-
MKE
2 stops15h 58m
United Airlines
Deal found 1/28$481

Find flight deals from Wisconsin to Porto

Keep the following information in mind while searching for Wisconsin to Porto flight deals. Data was last updated January 29, 2026.

Round-trip from

$372
(oojo)

One-way from

$248
(oojo)
From Wisconsin to Porto
Search Deals
One-way flight from Wisconsin to Porto
Search Deals

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 January 29, 2026.
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

Wed 3/4

7:10 pm-3:05 pm

1 stop13h 55m

Porto

Tue 3/10

6:00 pm-4:00 pm

1 stop27h 00m

$372

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Sun 5/10

6:00 pm-10:55 am

1 stop10h 55m

Porto

Wed 5/20

9:00 am-4:00 pm

1 stop13h 00m

$372

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Wed 2/11

7:10 pm-1:05 pm

1 stop11h 55m

Porto

Sun 2/15

5:00 am-2:45 pm

1 stop15h 45m

$468

MilwaukeePorto

MKE - OPO

MKEOPO

Milwaukee-Mitchell

Thu 2/26

1:25 pm-9:30 am

2 stops14h 05m

Porto

Mon 3/2

6:00 am-6:43 pm

2 stops18h 43m

$481

MilwaukeePorto

MKE - OPO

MKEOPO

Milwaukee-Mitchell

Wed 2/25

4:00 pm-11:40 pm

2 stops25h 40m

Porto

Wed 3/4

12:30 pm-10:28 pm

2 stops15h 58m

$483

MilwaukeePorto

MKE - OPO

MKEOPO

Milwaukee-Mitchell

Wed 2/25

11:30 am-9:30 am

2 stops16h 00m

Porto

Wed 3/4

6:00 am-9:44 pm

2 stops21h 44m

$492

MadisonPorto

MSN - OPO

MSNOPO

Madison Truax Field

Wed 3/4

12:57 pm-11:40 am

2 stops16h 43m

Porto

Sun 3/8

6:00 am-9:32 pm

2 stops21h 32m

$508

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Thu 2/26

6:51 pm-11:50 am

1 stop10h 59m

Porto

Thu 3/5

9:00 am-12:40 am

2 stops21h 40m

$567

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Tue 4/28

1:00 pm-11:10 am

2 stops16h 10m

Porto

Wed 5/6

6:00 am-6:21 pm

2 stops18h 21m

$570

MinneapolisPorto

MSP - OPO

MSPOPO

Minneapolis St Paul

Tue 4/21

10:00 am-10:55 am

2 stops18h 55m

Porto

Tue 4/28

5:00 am-2:45 pm

1 stop15h 45m

$587

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Showing 1-10 of 48 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 55m. TAP AIR PORTUGAL provides one of the quickest options available for as low as $372. Airlines will cover a distance of 3931 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 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.

See more FAQs

Traveling to a place near Porto?

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

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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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Top 2 airlines flying from Wisconsin to Porto

Discover the top 2 airlines that operate flights from Wisconsin 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 2,558,603 searches. Data last updated January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$700Average$846FlexibilityNo cancel feeOn-time75%
DeltaCheapest$711Average$842FlexibilityNo cancel feeOn-timeN/A

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