$457+ 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 11/11. Fares are subject to change and may not be available on all flights or dates of travel.
MSN — OPO
Sep 26 — Oct 31
Round-trip
1 adult, Economy
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Find cheap flights from Madison to Porto with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Madison to Porto
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Cheapest flights from Madison to PortoExplore 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 August 27, 2026.
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 August 27, 2026.
This United Airlines deal was found by Cheapflights users on 8/26. 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.
Tue 12/88:15 am -
2 stops19h 15m
Fri 12/1112:35 pm -
2 stops26h 02m
Deal found 8/26![United Airlines logo]()
$746
This Delta deal was found by Cheapflights users on 8/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/275:22 pm -
2 stops23h 38m
Tue 11/35:00 am -
2 stops20h 06m
Deal found 8/27![Delta logo]()
$784
This Air France deal was found by Cheapflights users on 8/24. 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.
Wed 11/181:28 pm -
2 stops15h 07m
Sat 12/55:00 am -
2 stops22h 24m
Deal found 8/24![Multiple Airlines logo]()
$825
This Delta deal was found by Cheapflights users on 8/24. 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 11/39:27 am -
2 stops19h 08m
Mon 11/95:00 am -
2 stops22h 17m
Deal found 8/24![Delta logo]()
$834
This Delta deal was found by Cheapflights users on 8/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/175:48 pm -
2 stops43h 17m
Sat 10/3111:15 am -
2 stops37h 51m
Deal found 8/25![Delta logo]()
$844
This Delta deal was found by Cheapflights users on 8/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/175:48 pm -
2 stops43h 17m
Sun 11/15:55 am -
2 stops19h 11m
Deal found 8/25![Delta logo]()
$851
This United deal was found by Cheapflights users on 8/24. 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.
Tue 11/36:10 am -
1 stop21h 20m
Mon 11/912:35 pm -
2 stops16h 32m
Deal found 8/24![Multiple Airlines logo]()
$862
This KAYAK deal was found by Cheapflights users on 8/27. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/276:10 am -
1 stop22h 20m
Tue 11/312:05 pm -
2 stops17h 32m
Deal found 8/27![SWISS logo]()
$863
This United Airlines deal was found by Cheapflights users on 8/24. 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 11/185:00 am -
2 stops22h 30m
Sat 12/512:35 pm -
1 stop13h 21m
Deal found 8/24![United Airlines logo]()
$869
Best flights from Madison to PortoDiscover 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 August 27, 2026.
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 August 27, 2026.
This United Airlines deal was found by Cheapflights users on 8/26. 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.
Tue 12/88:15 am -
2 stops19h 15m
Fri 12/1112:35 pm -
2 stops26h 02m
Deal found 8/26![United Airlines logo]()
$746
This Delta deal was found by Cheapflights users on 8/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/275:22 pm -
2 stops23h 38m
Tue 11/35:00 am -
2 stops20h 06m
Deal found 8/27![Delta logo]()
$784
Last-minute flights from Madison to PortoDiscover last-minute flight deals from Madison to Porto. Data last updated August 27, 2026 and is based on user searches.
Discover last-minute flight deals from Madison to Porto. Data last updated August 27, 2026 and is based on user searches.
This Air France deal was found by Cheapflights users on 8/27. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/82:47 pm -
2 stops18h 38m
Tue 9/155:00 am -
2 stops18h 17m
Deal found 8/27![Multiple Airlines logo]()
$1,133
This United Airlines deal was found by Cheapflights users on 8/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/810:57 am -
1 stop13h 18m
Tue 9/1512:15 pm -
2 stops29h 48m
Deal found 8/27![United Airlines logo]()
$1,144
This FlightHub deal was found by Cheapflights users on 8/26. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1712:41 pm -
2 stops28h 14m
Sun 10/46:20 am -
2 stops38h 44m
Deal found 8/26![Lufthansa logo]()
$1,201
This United Airlines deal was found by Cheapflights users on 8/26. 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.
Thu 9/177:15 am -
1 stop20h 30m
Sun 10/412:10 pm -
2 stops38h 50m
Deal found 8/26![United Airlines logo]()
$1,354
This Delta deal was found by Cheapflights users on 8/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2412:00 pm -
2 stops21h 25m
Thu 10/15:55 am -
2 stops23h 06m
Deal found 8/25![Delta logo]()
$949
This United Airlines deal was found by Cheapflights users on 8/25. 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.
Thu 9/246:49 am -
3 stops26h 56m
Thu 10/112:10 pm -
2 stops16h 25m
Deal found 8/25![United Airlines logo]()
$1,463
This AranGrant deal was found by Cheapflights users on 8/25. 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 AranGrant is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/283:25 pm -
2 stops18h 35m
Wed 10/148:20 am -
2 stops21h 52m
Deal found 8/25![Multiple Airlines logo]()
$1,952
One-way flights from Madison to PortoSearch for one-way flight options from Madison to Porto. Find affordable one-way fares based on user searches. Data last updated August 27, 2026.
Search for one-way flight options from Madison to Porto. Find affordable one-way fares based on user searches. Data last updated August 27, 2026.
This Expedia deal was found by Cheapflights users on 8/24. 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.
Wed 11/1111:24 am -
2 stops22h 36m
Deal found 8/24![Iberia logo]()
$457
This United Airlines deal was found by Cheapflights users on 8/24. 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 11/118:15 am -
2 stops19h 15m
Deal found 8/24![United Airlines logo]()
$463
This KAYAK deal was found by Cheapflights users on 8/24. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/116:10 am -
1 stop21h 20m
Deal found 8/24![Lufthansa logo]()
$546
This Expedia deal was found by Cheapflights users on 8/24. 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.
Thu 11/197:00 pm -
2 stops22h 55m
Deal found 8/24![Lufthansa logo]()
$593
This United Airlines deal was found by Cheapflights users on 8/24. 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 11/196:10 am -
1 stop21h 20m
Deal found 8/24![United Airlines logo]()
$618
This Kiwi.com deal was found by Cheapflights users on 8/24. 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.
Thu 11/196:00 pm -
3 stops43h 25m
Deal found 8/24![Multiple Airlines logo]()
$630
This United Airlines deal was found by Cheapflights users on 8/26. 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.
Fri 11/207:00 pm -
2 stops56h 30m
Deal found 8/26![United Airlines logo]()
$657
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 August 27, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $745 (United Airlines) |
One-way from | $457 (Expedia) |
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 7,457,451 searches. Data last updated August 27, 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
Cheapest round-trip
MadisonPorto
MSN Madison Truax Field - OPO Porto
MSNOPO
Madison Truax Field
Tue 12/8
8:15 am-9:30 am
2 stops19h 15m
Porto
Fri 12/11
12:35 pm-8:37 am
2 stops26h 02m
$746
Quickest round-trip
MadisonPorto
MSN Madison Truax Field - OPO Porto
MSNOPO
Madison Truax Field
Tue 10/27
5:22 pm-10:00 pm
2 stops23h 38m
Porto
Tue 11/3
5:00 am-7:06 pm
2 stops20h 06m
$784
Cheapest one-way
MadisonPorto
MSN Madison Truax Field - OPO Porto
MSNOPO
Madison Truax Field
Wed 11/11
11:24 am-4:00 pm
2 stops22h 36m
$457
Quickest one-way
MadisonPorto
MSN Madison Truax Field - OPO Porto
MSNOPO
Madison Truax Field
Wed 11/11
8:15 am-9:30 am
2 stops19h 15m
$463
MadisonPorto
MSN Madison Truax Field - OPO Porto
MSNOPO
Madison Truax Field
Thu 11/19
6:10 am-9:30 am
1 stop21h 20m
$618
MadisonPorto
MSN Madison Truax Field - OPO Porto
MSNOPO
Madison Truax Field
Thu 11/19
6:00 pm-7:25 pm
3 stops43h 25m
$630
MadisonPorto
MSN Madison Truax Field - OPO Porto
MSNOPO
Madison Truax Field
Fri 11/20
7:00 pm-9:30 am
2 stops56h 30m
$657
Sorted by cheapest first
- Most accurate provider: When it comes to deals on Madison-Porto flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Madison-Porto flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Madison-Porto flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Madison-Porto flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Madison-Porto flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
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.
MSN-OPO
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.
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.
Traveling to a place near Porto?
Book flights to Porto if you plan to visit one of these locationsVila Nova de Gaia
Arcos de Valdevez
Coimbra
Aveiro
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