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$423+ Cheap flights from Madison (MSN) 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 3/22. Fares are subject to change and may not be available on all flights or dates of travel.
MSN — OPO
Jan 27 — Feb 31
Tue 1/27
Tue 2/3
1 adult, Economy
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Cheap flight deals from Madison to Porto

Best flights from Madison to Porto
Discover carefully curated flight deals from Madison to Porto that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 28, 2025.

This KLM deal was found by Cheapflights users on 12/27. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/1011:31 amMSN - OPO
2 stops16h 59mMultiple Airlines
Tue 2/179:55 amOPO - MSN
2 stops16h 57mMultiple Airlines
Deal found 12/27$493
This United Airlines deal was found by Cheapflights users on 12/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/116:30 amMSN - OPO
2 stops26h 55mUnited Airlines
Sun 2/156:00 amOPO - MSN
2 stops38h 07mUnited Airlines
Deal found 12/26$507
This United Airlines deal was found by Cheapflights users on 12/25. 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 2/96:30 amMSN - OPO
2 stops23h 10mUnited Airlines
Mon 2/1612:30 pmOPO - MSN
2 stops53h 23mUnited Airlines
Deal found 12/25$527

Find flight deals from Madison to Porto

Discover tips and strategies to find the most affordable flight options for your journey from Madison (MSN) 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 December 28, 2025.

Round-trip from

$493
(KLM)

One-way from

$423
(Delta)
From Madison Truax Field to Porto
Search Deals
One-way flight from Madison Truax Field to Porto
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Madison 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 December 28, 2025.
Use the filters below to find and compare flights from Madison to Porto that are best for you.

Fly from

Madison

Fly to

Porto

Route

Depart

Return

Price

MadisonPorto

MSN - OPO

MSNOPO

Madison Truax Field

Tue 2/10

11:31 am-10:30 am

2 stops16h 59m

Porto

Tue 2/17

9:55 am-8:52 pm

2 stops16h 57m

$493

MadisonPorto

MSN - OPO

MSNOPO

Madison Truax Field

Wed 2/11

6:30 am-3:25 pm

2 stops26h 55m

Porto

Sun 2/15

6:00 am-2:07 pm

2 stops38h 07m

$507

MadisonPorto

MSN - OPO

MSNOPO

Madison Truax Field

Mon 2/9

6:30 am-11:40 am

2 stops23h 10m

Porto

Mon 2/16

12:30 pm-11:53 am

2 stops53h 23m

$527

MadisonPorto

MSN - OPO

MSNOPO

Madison Truax Field

Sun 3/22

7:00 am-10:30 am

2 stops22h 30m

$423

MadisonPorto

MSN - OPO

MSNOPO

Madison Truax Field

Sun 3/22

7:56 pm-8:20 am

3 stops55h 24m

$473

MadisonPorto

MSN - OPO

MSNOPO

Madison Truax Field

Sun 3/22

6:05 am-9:30 am

1 stop22h 25m

$895

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/27

Best time to book a flight from Madison to Porto

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

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 December 28, 2025.
See what other customers who have flown with Delta and KLM from Madison 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.
Delta
7.9
Good
8,016 reviews

Entertainment

7.9

Overall

7.9

Food

7.3

Boarding

8.1

Crew

8.5

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,016 reviews
Delta
7.9
Good
8,016 reviews

Entertainment

7.9

Overall

7.9

Food

7.3

Boarding

8.1

Crew

8.5

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
KLM
7.7
Good
1,435 reviews
Delta
7.9
Good
8,016 reviews

Entertainment

7.9

Overall

7.9

Food

7.3

Boarding

8.1

Crew

8.5

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Madison to Porto. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Madison to Porto?

    For as low as $507, United Airlines can have you in Porto from Madison in 26h 55m. The distance between Madison and Porto is about 3958 mi.

  • What are the cheapest airlines flying from Madison to Porto round-trip?

    According to our current data, KLM ($700), and Delta ($711) offers the cheapest pricing from Madison to Porto.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Madison 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
Aveiro
Arcos de Valdevez
Coimbra
Vila Nova de Gaia

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Top 2 airlines flying from Madison to Porto

Discover the top 2 airlines that operate flights from Madison 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 December 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$700Average$846FlexibilityNo cancel feeOn-time75%
DeltaCheapest$711Average$842FlexibilityNo cancel feeOn-timeN/A

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