Porto

$587+ Cheap flights from Milwaukee (MKE) 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 6/28. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — OPO
Jun 21 — Jun 281
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Cheap flight deals from Milwaukee to Porto

Discover tips and strategies to find the most affordable flight options for your journey from Milwaukee (MKE) to Porto (OPO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 16, 2025.

Round-trip from

$807
(Lufthansa)

One-way from

$587
(Kiwi.com)
From Milwaukee-Mitchell to Porto
One-way flight from Milwaukee-Mitchell to Porto

Find flight deals from Milwaukee to Porto

Cheapest flights from Milwaukee to Porto
Explore the most affordable flight options available from Milwaukee to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 16, 2025.

This Lufthansa deal was found by Cheapflights users on 6/16. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1612:05 pmMKE - OPO
2 stops29h 15mLufthansa
Sun 10/2612:40 pmOPO - MKE
2 stops38h 19mLufthansa
Deal found 6/16$807
This United Airlines deal was found by Cheapflights users on 6/14. 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 10/167:00 amMKE - OPO
2 stops26h 45mUnited Airlines
Sun 10/2612:40 pmOPO - MKE
2 stops30h 18mUnited Airlines
Deal found 6/14$811
This Air Canada deal was found by Cheapflights users on 6/14. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2710:50 amMKE - OPO
3 stops16h 30mAir Canada
Sun 9/711:20 amOPO - MKE
3 stops16h 36mAir Canada
Deal found 6/14$1,015
This Air France deal was found by Cheapflights users on 6/15. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/15:30 pmMKE - OPO
2 stops16h 00mAir France
Mon 7/79:20 amOPO - MKE
2 stops18h 38mAir France
Deal found 6/15$1,046
This Delta deal was found by Cheapflights users on 6/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/110:12 amMKE - OPO
2 stops18h 28mDelta
Mon 7/79:20 amOPO - MKE
2 stops17h 59mDelta
Deal found 6/14$1,076
This Air Canada deal was found by Cheapflights users on 6/14. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2710:50 amMKE - OPO
2 stops16h 30mMultiple Airlines
Sun 9/711:20 amOPO - MKE
3 stops16h 36mMultiple Airlines
Deal found 6/14$1,209

Cheapflights Fare Finder

Customize your flight search to find flights from Milwaukee 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 June 16, 2025.
Use the filters below to find and compare flights from Milwaukee to Porto that are best for you.

Fly from

Milwaukee

Fly to

Porto

Route

Depart

Return

Price

MilwaukeePorto

MKE - OPO

MKEOPO

Milwaukee-Mitchell

Thu 10/16

12:05 pm-11:20 pm

2 stops29h 15m

Porto

Sun 10/26

12:40 pm-9:59 pm

2 stops38h 19m

$807

MilwaukeePorto

MKE - OPO

MKEOPO

Milwaukee-Mitchell

Thu 10/16

7:00 am-3:45 pm

2 stops26h 45m

Porto

Sun 10/26

12:40 pm-1:58 pm

2 stops30h 18m

$811

MilwaukeePorto

MKE - OPO

MKEOPO

Milwaukee-Mitchell

Wed 8/27

10:50 am-9:20 am

3 stops16h 30m

Porto

Sun 9/7

11:20 am-9:56 pm

3 stops16h 36m

$1,015

MilwaukeePorto

MKE - OPO

MKEOPO

Milwaukee-Mitchell

Tue 7/1

5:30 pm-3:30 pm

2 stops16h 00m

Porto

Mon 7/7

9:20 am-9:58 pm

2 stops18h 38m

$1,046

MilwaukeePorto

MKE - OPO

MKEOPO

Milwaukee-Mitchell

Tue 7/1

10:12 am-10:40 am

2 stops18h 28m

Porto

Mon 7/7

9:20 am-9:19 pm

2 stops17h 59m

$1,076

MilwaukeePorto

MKE - OPO

MKEOPO

Milwaukee-Mitchell

Wed 8/27

10:50 am-9:20 am

2 stops16h 30m

Porto

Sun 9/7

11:20 am-9:56 pm

3 stops16h 36m

$1,209

MilwaukeePorto

MKE - OPO

MKEOPO

Milwaukee-Mitchell

Sat 6/28

7:14 pm-7:00 am

3 stops53h 46m

$587

MilwaukeePorto

MKE - OPO

MKEOPO

Milwaukee-Mitchell

Fri 9/19

5:40 pm-9:35 am

2 stops33h 55m

$654

MilwaukeePorto

MKE - OPO

MKEOPO

Milwaukee-Mitchell

Fri 9/19

11:39 am-6:50 am

1 stop13h 11m

$1,018

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/15

Best time to book a flight from Milwaukee to Porto

Have a flexible travel schedule? Discover the best time to fly to Porto from Milwaukee 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 Milwaukee to Porto

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

Currently, January is the cheapest month in which you can book a flight from Milwaukee to Porto (average of $523). Flying from Milwaukee to Porto in June is currently the most expensive (average of $1,040). 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.

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 June 16, 2025.
See what other customers who have flown with Delta, Air France and United Airlines from Milwaukee to Porto have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good

Crew

8.5

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
8.0
Very good
8.0
Very good

Crew

8.5

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
8.0
Very good

Crew

8.5

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
8.0
Very good

Crew

8.5

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
8.0
Very good

Crew

8.5

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
8.0
Very good

Crew

8.5

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Milwaukee to Porto. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • Can I find deals for flights from Milwaukee to Porto that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Milwaukee 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 Milwaukee to Porto?

    Currently, January is the cheapest month in which you can book a flight from Milwaukee to Porto (average of $523). Flying from Milwaukee to Porto in June is currently the most expensive (average of $1,040). 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 Milwaukee?

Book flights to Milwaukee if you plan to visit one of these locations
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Matosinhos
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