$418+ 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 11/20. Fares are subject to change and may not be available on all flights or dates of travel.
MSN — OPO
Sep 15 — Sep 221
Round-trip
1 adult, Economy
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Find cheap flights from Madison to Porto with Cheapflights
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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
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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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Best
Last-minute
One-way
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 16, 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 16, 2026.
This KLM deal was found by Cheapflights users on 8/13. 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.
Mon 12/73:50 pm -
2 stops17h 35m
Thu 12/105:00 am -
2 stops20h 06m
Deal found 8/13![KLM logo]()
$727
This Expedia deal was found by Cheapflights users on 8/13. 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 11/1112:32 pm -
2 stops29h 23m
Mon 11/231:45 pm -
2 stops37h 20m
Deal found 8/13![Lufthansa logo]()
$765
This Delta deal was found by Cheapflights users on 8/14. 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 10/275:21 pm -
2 stops23h 39m
Tue 11/35:00 am -
2 stops20h 06m
Deal found 8/14![Delta logo]()
$783
This Ovago deal was found by Cheapflights users on 8/13. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/78:20 am -
1 stop19h 10m
Thu 12/106:00 am -
2 stops19h 02m
Deal found 8/13![Lufthansa logo]()
$795
This United Airlines deal was found by Cheapflights users on 8/13. 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 11/1112:32 pm -
2 stops14h 58m
Mon 11/2312:35 pm -
1 stop17h 02m
Deal found 8/13![United Airlines logo]()
$804
This KAYAK deal was found by Cheapflights users on 8/14. 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 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 8/14![SWISS logo]()
$862
This Delta deal was found by Cheapflights users on 8/13. 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.
Sun 9/207:05 am -
2 stops26h 25m
Fri 10/25:00 am -
2 stops24h 01m
Deal found 8/13![Delta logo]()
$881
This Air Canada deal was found by Cheapflights users on 8/12. 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.
Tue 9/84:06 pm -
2 stops32h 54m
Tue 9/1512:15 pm -
2 stops27h 59m
Deal found 8/12![Multiple Airlines logo]()
$935
This Delta deal was found by Cheapflights users on 8/13. 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 9/196:07 pm -
2 stops15h 18m
Fri 10/25:00 am -
2 stops22h 19m
Deal found 8/13![Delta logo]()
$941
This Delta deal was found by Cheapflights users on 8/11. 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.
Wed 9/301:30 pm -
2 stops19h 55m
Sat 10/105:55 am -
2 stops19h 11m
Deal found 8/11![Delta logo]()
$948
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 16, 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 16, 2026.
This KLM deal was found by Cheapflights users on 8/13. 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.
Mon 12/73:50 pm -
2 stops17h 35m
Thu 12/105:00 am -
2 stops20h 06m
Deal found 8/13![KLM logo]()
$727
This Delta deal was found by Cheapflights users on 8/16. 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 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 8/16![Delta logo]()
$783
This KAYAK deal was found by Cheapflights users on 8/14. 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 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 8/14![SWISS logo]()
$862
This Air Canada deal was found by Cheapflights users on 8/12. 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.
Tue 9/84:06 pm -
2 stops32h 54m
Tue 9/1512:15 pm -
2 stops27h 59m
Deal found 8/12![Multiple Airlines logo]()
$935
This KAYAK deal was found by Cheapflights users on 8/12. 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 9/810:57 am -
1 stop13h 18m
Tue 9/156:00 am -
2 stops19h 00m
Deal found 8/12![Lufthansa logo]()
$987
This United Airlines deal was found by Cheapflights users on 8/15. 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 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 8/15![United Airlines logo]()
$1,143
This Delta deal was found by Cheapflights users on 8/11. 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.
Wed 9/301:30 pm -
2 stops19h 55m
Sat 10/105:55 am -
2 stops19h 11m
Deal found 8/11![Delta logo]()
$948
This Delta deal was found by Cheapflights users on 8/16. 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 Delta 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 57m
Deal found 8/16![Delta logo]()
$1,132
Last-minute flights from Madison to PortoDiscover last-minute flight deals from Madison to Porto. Data last updated August 16, 2026 and is based on user searches.
Discover last-minute flight deals from Madison to Porto. Data last updated August 16, 2026 and is based on user searches.
This Air Canada deal was found by Cheapflights users on 8/12. 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.
Tue 9/84:06 pm -
2 stops32h 54m
Tue 9/1512:15 pm -
2 stops27h 59m
Deal found 8/12![Multiple Airlines logo]()
$935
This KAYAK deal was found by Cheapflights users on 8/12. 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 9/810:57 am -
1 stop13h 18m
Tue 9/156:00 am -
2 stops19h 00m
Deal found 8/12![Lufthansa logo]()
$987
This Delta deal was found by Cheapflights users on 8/13. 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 9/196:07 pm -
2 stops15h 18m
Fri 10/25:00 am -
2 stops22h 19m
Deal found 8/13![Delta logo]()
$941
This United Airlines deal was found by Cheapflights users on 8/13. 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 9/192:44 pm -
2 stops34h 11m
Sat 10/36:00 am -
2 stops20h 15m
Deal found 8/13![United Airlines logo]()
$1,090
This Delta deal was found by Cheapflights users on 8/13. 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.
Sun 9/207:05 am -
2 stops26h 25m
Fri 10/25:00 am -
2 stops24h 01m
Deal found 8/13![Delta logo]()
$881
This United Airlines deal was found by Cheapflights users on 8/13. 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.
Sun 9/204:05 pm -
2 stops37h 10m
Sat 10/36:00 am -
2 stops20h 15m
Deal found 8/13![United Airlines logo]()
$1,100
This United Airlines deal was found by Cheapflights users on 8/13. 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 9/213:58 pm -
2 stops32h 17m
Sat 10/36:00 am -
2 stops20h 15m
Deal found 8/13![United Airlines logo]()
$1,079
This United Airlines deal was found by Cheapflights users on 8/13. 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 9/227:15 am -
1 stop17h 00m
Sat 10/36:00 am -
2 stops20h 15m
Deal found 8/13![United Airlines logo]()
$1,074
This Expedia deal was found by Cheapflights users on 8/13. 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.
Sun 9/276:35 pm -
2 stops22h 50m
Sun 10/46:20 am -
2 stops38h 44m
Deal found 8/13![Lufthansa logo]()
$979
This Delta deal was found by Cheapflights users on 8/11. 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.
Wed 9/301:30 pm -
2 stops19h 55m
Sat 10/105:55 am -
2 stops19h 11m
Deal found 8/11![Delta logo]()
$948
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 16, 2026.
Search for one-way flight options from Madison to Porto. Find affordable one-way fares based on user searches. Data last updated August 16, 2026.
This United Airlines deal was found by Cheapflights users on 8/11. 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 8/11![United Airlines logo]()
$418
This Kiwi.com deal was found by Cheapflights users on 8/11. 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.
Fri 8/219:10 am -
2 stops40h 10m
Deal found 8/11![Multiple Airlines logo]()
$537
This United Airlines deal was found by Cheapflights users on 8/11. 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 8/217:10 am -
1 stop17h 40m
Deal found 8/11![United Airlines logo]()
$767
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 16, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $727 (KLM) |
One-way from | $418 (United Airlines) |
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 August 16, 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
Mon 12/7
3:50 pm-3:25 pm
2 stops17h 35m
Porto
Thu 12/10
5:00 am-7:06 pm
2 stops20h 06m
$727
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
$783
MadisonPorto
MSN Madison Truax Field - OPO Porto
MSNOPO
Madison Truax Field
Tue 10/27
6:10 am-9:30 am
1 stop22h 20m
Porto
Tue 11/3
12:05 pm-11:37 pm
2 stops17h 32m
$862
MadisonPorto
MSN Madison Truax Field - OPO Porto
MSNOPO
Madison Truax Field
Tue 9/8
4:06 pm-7:00 am
2 stops32h 54m
Porto
Tue 9/15
12:15 pm-10:14 am
2 stops27h 59m
$935
MadisonPorto
MSN Madison Truax Field - OPO Porto
MSNOPO
Madison Truax Field
Wed 9/30
1:30 pm-3:25 pm
2 stops19h 55m
Porto
Sat 10/10
5:55 am-7:06 pm
2 stops19h 11m
$948
Quickest round-trip
MadisonPorto
MSN Madison Truax Field - OPO Porto
MSNOPO
Madison Truax Field
Tue 9/8
10:57 am-6:15 am
1 stop13h 18m
Porto
Tue 9/15
6:00 am-7:00 pm
2 stops19h 00m
$987
MadisonPorto
MSN Madison Truax Field - OPO Porto
MSNOPO
Madison Truax Field
Tue 9/8
2:47 pm-3:25 pm
2 stops18h 38m
Porto
Tue 9/15
5:00 am-5:57 pm
2 stops18h 57m
$1,132
MadisonPorto
MSN Madison Truax Field - OPO Porto
MSNOPO
Madison Truax Field
Tue 9/8
10:57 am-6:15 am
1 stop13h 18m
Porto
Tue 9/15
12:15 pm-12:03 pm
2 stops29h 48m
$1,143
Cheapest one-way
MadisonPorto
MSN Madison Truax Field - OPO Porto
MSNOPO
Madison Truax Field
Fri 11/20
7:00 pm-9:30 am
2 stops56h 30m
$418
MadisonPorto
MSN Madison Truax Field - OPO Porto
MSNOPO
Madison Truax Field
Fri 8/21
9:10 am-7:20 am
2 stops40h 10m
$537
Showing 1-10 of 11 resultsSorted 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.
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 August 16, 2026.
See what other customers who have flown with 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.
Food
7.3
Comfort
7.7
Overall
7.8
Crew
8.4
Boarding
7.8
Entertainment
7.2
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Food
7.3
Comfort
7.7
Overall
7.8
Crew
8.4
Boarding
7.8
Entertainment
7.2
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
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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Madison and Porto flights
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Top airline flying from Madison to Porto
Discover the top airline 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 August 16, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$700 | Average$756 | FlexibilityNo cancel fee | On-time75% |