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$532+ 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 9/14. Fares are subject to change and may not be available on all flights or dates of travel.
MSN — OPO
Jun 18 — Jun 251
Thu 6/18
Thu 6/25
1 adult, Economy
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Cheap flight deals from Madison to Porto

Cheapest flights from Madison to Porto
Explore the most affordable flight options available from Madison to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 19, 2026.

This United Airlines deal was found by Cheapflights users on 5/14. 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.
Sat 7/45:45 pm
MSN
-
OPO
2 stops31h 05m
United Airlines
Sat 7/189:00 am
OPO
-
MSN
2 stops20h 12m
United Airlines
Deal found 5/14$1,030
This United Airlines deal was found by Cheapflights users on 5/18. 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.
Thu 7/28:10 am
MSN
-
OPO
2 stops40h 50m
United Airlines
Thu 7/911:50 am
OPO
-
MSN
2 stops41h 22m
United Airlines
Deal found 5/18$1,044
This Air France deal was found by Cheapflights users on 5/18. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/45:27 pm
MSN
-
OPO
2 stops15h 58m
Multiple Airlines
Sat 7/185:00 am
OPO
-
MSN
2 stops18h 08m
Multiple Airlines
Deal found 5/18$1,062
This United Airlines deal was found by Cheapflights users on 5/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/208:05 am
MSN
-
OPO
2 stops40h 45m
United Airlines
Fri 7/36:00 am
OPO
-
MSN
2 stops23h 12m
United Airlines
Deal found 5/16$1,180
This Delta deal was found by Cheapflights users on 5/17. 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.
Sat 6/205:52 am
MSN
-
OPO
2 stops22h 28m
Delta
Fri 7/35:00 am
OPO
-
MSN
2 stops18h 00m
Delta
Deal found 5/17$1,230

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 May 19, 2026.

Round-trip from

$1,030
(United Airlines)

One-way from

$532
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 May 19, 2026.
Use the filters below to find and compare flights from Madison to Porto that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MadisonPorto

MSN - OPO

MSNOPO

Madison Truax Field

Sat 7/4

5:45 pm-6:50 am

2 stops31h 05m

Porto

Sat 7/18

12:35 pm-11:12 pm

2 stops16h 37m

$1,030

MadisonPorto

MSN - OPO

MSNOPO

Madison Truax Field

Sat 6/20

5:52 am-10:20 am

2 stops22h 28m

Porto

Fri 7/3

5:00 am-5:00 pm

2 stops18h 00m

$1,230

MadisonPorto

MSN - OPO

MSNOPO

Madison Truax Field

Sat 6/20

5:27 pm-3:25 pm

2 stops15h 58m

Porto

Fri 7/3

5:00 am-5:00 pm

2 stops18h 00m

$1,230

MadisonPorto

MSN - OPO

MSNOPO

Madison Truax Field

Sat 6/20

10:52 am-9:45 am

1 stop16h 53m

Porto

Fri 7/3

9:00 am-8:39 pm

1 stop17h 39m

$1,253
Quickest round-trip

MadisonPorto

MSN - OPO

MSNOPO

Madison Truax Field

Thu 7/2

10:53 am-6:55 am

1 stop14h 02m

Porto

Thu 7/9

12:35 pm-8:39 pm

1 stop14h 04m

$1,259

MadisonPorto

MSN - OPO

MSNOPO

Madison Truax Field

Tue 6/9

4:40 pm-3:25 pm

2 stops16h 45m

Porto

Wed 6/24

5:00 am-5:52 pm

2 stops18h 52m

$1,284
Cheapest one-way
Quickest one-way

MadisonPorto

MSN - OPO

MSNOPO

Madison Truax Field

Mon 9/14

10:57 am-6:55 am

1 stop13h 58m

$532

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/16

Sorted by cheapest first

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 May 19, 2026.
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
8,450 reviews

Food

7.2

Crew

8.5

Boarding

8.1

Comfort

7.8

Overall

7.9

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Delta
7.9
Good
8,450 reviews
Delta
7.9
Good
8,450 reviews

Food

7.2

Crew

8.5

Boarding

8.1

Comfort

7.8

Overall

7.9

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
KLM
7.8
Good
1,517 reviews
Delta
7.9
Good
8,450 reviews

Food

7.2

Crew

8.5

Boarding

8.1

Comfort

7.8

Overall

7.9

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

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 $1,030, United Airlines can have you in Porto from Madison in 31h 05m. The distance between Madison and Porto is about 3958 mi.

  • 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
Vila Nova de Gaia
Aveiro
Arcos de Valdevez
Coimbra

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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 May 19, 2026.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$700Average$846FlexibilityNo cancel feeOn-time75%
DeltaCheapest$711Average$842FlexibilityNo cancel feeOn-timeN/A

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