$298+ 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 7/11. Fares are subject to change and may not be available on all flights or dates of travel.
MSN — OPO
Jul 27 — Aug 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
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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
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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 June 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 June 27, 2026.
This Air France deal was found by Cheapflights users on 6/25. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/31:45 pm
MSN
- OPO
2 stops14h 50m
Air France
Tue 11/105:55 am
OPO
- MSN
2 stops16h 42m
Air France
Deal found 6/25![Air France logo]()
$729
This KLM deal was found by Cheapflights users on 6/23. 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 11/31:45 pm
MSN
- OPO
2 stops14h 50m
Multiple Airlines
Tue 11/1011:30 am
OPO
- MSN
2 stops15h 15m
Multiple Airlines
Deal found 6/23![Multiple Airlines logo]()
$730
This United Airlines deal was found by Cheapflights users on 6/22. 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 12/68:00 am
MSN
- OPO
1 stop19h 30m
United Airlines
Tue 12/812:35 pm
OPO
- MSN
2 stops16h 18m
United Airlines
Deal found 6/22![United Airlines logo]()
$745
This United Airlines deal was found by Cheapflights users on 6/25. 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.
Tue 11/38:20 am
MSN
- OPO
2 stops19h 10m
United Airlines
Tue 11/1012:35 pm
OPO
- MSN
1 stop17h 02m
United Airlines
Deal found 6/25![United Airlines logo]()
$758
This Delta deal was found by Cheapflights users on 6/22. 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 11/15:50 pm
MSN
- OPO
2 stops22h 10m
Delta
Sat 11/75:00 am
OPO
- MSN
2 stops21h 45m
Delta
Deal found 6/22![Delta logo]()
$773
This KAYAK deal was found by Cheapflights users on 6/25. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/36:09 am
MSN
- OPO
1 stop21h 21m
Lufthansa
Tue 11/1012:35 pm
OPO
- MSN
1 stop17h 02m
Lufthansa
Deal found 6/25![Lufthansa logo]()
$809
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 June 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 June 27, 2026.
This Air France deal was found by Cheapflights users on 6/25. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/31:45 pm
MSN
- OPO
2 stops14h 50m
Air France
Tue 11/105:55 am
OPO
- MSN
2 stops16h 42m
Air France
Deal found 6/25![Air France logo]()
$729
This KLM deal was found by Cheapflights users on 6/23. 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 11/31:45 pm
MSN
- OPO
2 stops14h 50m
Multiple Airlines
Tue 11/1011:30 am
OPO
- MSN
2 stops15h 15m
Multiple Airlines
Deal found 6/23![Multiple Airlines logo]()
$730
This United Airlines deal was found by Cheapflights users on 6/22. 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 12/68:00 am
MSN
- OPO
1 stop19h 30m
United Airlines
Tue 12/812:35 pm
OPO
- MSN
2 stops16h 18m
United Airlines
Deal found 6/22![United Airlines logo]()
$745
This KAYAK deal was found by Cheapflights users on 6/25. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/36:09 am
MSN
- OPO
1 stop21h 21m
Lufthansa
Tue 11/1012:35 pm
OPO
- MSN
1 stop17h 02m
Lufthansa
Deal found 6/25![Lufthansa logo]()
$809
This Delta deal was found by Cheapflights users on 6/23. 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.
Mon 8/173:07 pm
MSN
- OPO
1 stop13h 23m
Delta
Wed 8/265:00 am
OPO
- MSN
2 stops18h 48m
Delta
Deal found 6/23![Delta logo]()
$866
This United Airlines deal was found by Cheapflights users on 6/25. 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.
Tue 11/38:20 am
MSN
- OPO
2 stops19h 10m
United Airlines
Tue 11/1012:35 pm
OPO
- MSN
1 stop17h 02m
United Airlines
Deal found 6/25![United Airlines logo]()
$758
This United Airlines deal was found by Cheapflights users on 6/24. 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.
Mon 8/1710:57 am
MSN
- OPO
1 stop13h 58m
United Airlines
Wed 8/2611:20 am
OPO
- MSN
2 stops32h 22m
United Airlines
Deal found 6/24![United Airlines logo]()
$888
Last-minute flights from Madison to PortoDiscover last-minute flight deals from Madison to Porto. Data last updated June 27, 2026 and is based on user searches.
Discover last-minute flight deals from Madison to Porto. Data last updated June 27, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 6/23. 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 7/710:45 am
MSN
- OPO
1 stop13h 30m
United Airlines
Wed 8/56:00 am
OPO
- MSN
2 stops23h 12m
United Airlines
Deal found 6/23![United Airlines logo]()
$1,157
This United Airlines deal was found by Cheapflights users on 6/23. 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 7/710:45 am
MSN
- OPO
1 stop13h 30m
United Airlines
Tue 8/412:15 pm
OPO
- MSN
2 stops27h 32m
United Airlines
Deal found 6/23![United Airlines logo]()
$1,172
This Delta deal was found by Cheapflights users on 6/23. 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 7/73:46 pm
MSN
- OPO
2 stops17h 39m
Delta
Thu 8/65:00 am
OPO
- MSN
2 stops22h 19m
Delta
Deal found 6/23![Delta logo]()
$1,210
This United Airlines deal was found by Cheapflights users on 6/23. 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 7/810:48 am
MSN
- OPO
2 stops14h 12m
United Airlines
Wed 8/56:00 am
OPO
- MSN
2 stops23h 12m
United Airlines
Deal found 6/23![United Airlines logo]()
$1,160
This Delta deal was found by Cheapflights users on 6/23. 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 7/91:31 pm
MSN
- OPO
2 stops19h 54m
Delta
Wed 8/55:00 am
OPO
- MSN
2 stops18h 35m
Delta
Deal found 6/23![Delta logo]()
$1,191
This Delta deal was found by Cheapflights users on 6/23. 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 7/123:05 pm
MSN
- OPO
1 stop13h 20m
Delta
Fri 7/315:00 am
OPO
- MSN
2 stops21h 59m
Delta
Deal found 6/23![Delta logo]()
$1,128
This Delta deal was found by Cheapflights users on 6/23. 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 7/121:31 pm
MSN
- OPO
2 stops19h 59m
Delta
Tue 8/45:00 am
OPO
- MSN
2 stops24h 00m
Delta
Deal found 6/23![Delta logo]()
$1,131
This Delta deal was found by Cheapflights users on 6/23. 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 7/123:05 pm
MSN
- OPO
1 stop13h 20m
Delta
Wed 8/512:40 pm
OPO
- MSN
1 stop31h 47m
Delta
Deal found 6/23![Delta logo]()
$1,143
This Delta deal was found by Cheapflights users on 6/23. 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.
Mon 7/137:00 am
MSN
- OPO
1 stop21h 30m
Delta
Fri 7/315:00 am
OPO
- MSN
2 stops21h 59m
Delta
Deal found 6/23![Delta logo]()
$1,134
This Delta deal was found by Cheapflights users on 6/23. 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.
Mon 7/137:00 am
MSN
- OPO
1 stop21h 30m
Delta
Wed 8/512:40 pm
OPO
- MSN
1 stop31h 47m
Delta
Deal found 6/23![Delta logo]()
$1,150
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 June 27, 2026.
Search for one-way flight options from Madison to Porto. Find affordable one-way fares based on user searches. Data last updated June 27, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/23. 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.
Sat 7/117:55 pm
MSN
- OPO
3 stops53h 35m
Multiple Airlines
Deal found 6/23![Multiple Airlines logo]()
$298
This Kiwi.com deal was found by Cheapflights users on 6/23. 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.
Wed 7/86:05 pm
MSN
- OPO
2 stops45h 00m
Multiple Airlines
Deal found 6/23![Multiple Airlines logo]()
$419
This Kiwi.com deal was found by Cheapflights users on 6/23. 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 7/106:50 pm
MSN
- OPO
3 stops46h 20m
Multiple Airlines
Deal found 6/23![Multiple Airlines logo]()
$437
This United Airlines deal was found by Cheapflights users on 6/24. 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.
Sat 9/125:56 pm
MSN
- OPO
2 stops30h 59m
United Airlines
Deal found 6/24![United Airlines logo]()
$469
This Kiwi.com deal was found by Cheapflights users on 6/23. 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.
Sun 7/127:55 pm
MSN
- OPO
3 stops43h 50m
Multiple Airlines
Deal found 6/23![Multiple Airlines logo]()
$474
This Kiwi.com deal was found by Cheapflights users on 6/23. 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.
Tue 7/77:55 pm
MSN
- OPO
3 stops45h 00m
Multiple Airlines
Deal found 6/23![Multiple Airlines logo]()
$593
This Kiwi.com deal was found by Cheapflights users on 6/24. 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.
Sat 9/1210:33 am
MSN
- OPO
3 stops43h 12m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$595
This Kiwi.com deal was found by Cheapflights users on 6/23. 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 7/97:55 pm
MSN
- OPO
3 stops39h 50m
Multiple Airlines
Deal found 6/23![Multiple Airlines logo]()
$601
This Kiwi.com deal was found by Cheapflights users on 6/23. 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.
Mon 7/139:10 am
MSN
- OPO
2 stops39h 40m
Multiple Airlines
Deal found 6/23![Multiple Airlines logo]()
$616
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 June 27, 2026.
Round-trip from | $729 (Air France) |
|---|---|
One-way from | $298 (Kiwi.com) |
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 June 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 - OPO
MSNOPO
Madison Truax Field
Tue 11/3
1:45 pm-10:35 am
2 stops14h 50m
Porto
Tue 11/10
5:55 am-4:37 pm
2 stops16h 42m
$729
Quickest round-trip
MadisonPorto
MSN - OPO
MSNOPO
Madison Truax Field
Tue 11/3
1:45 pm-10:35 am
2 stops14h 50m
Porto
Tue 11/10
11:30 am-8:45 pm
2 stops15h 15m
$730
MadisonPorto
MSN - OPO
MSNOPO
Madison Truax Field
Sun 12/6
8:00 am-9:30 am
1 stop19h 30m
Porto
Tue 12/8
12:35 pm-10:53 pm
2 stops16h 18m
$745
MadisonPorto
MSN - OPO
MSNOPO
Madison Truax Field
Tue 11/3
8:20 am-9:30 am
2 stops19h 10m
Porto
Tue 11/10
12:35 pm-11:37 pm
1 stop17h 02m
$758
MadisonPorto
MSN - OPO
MSNOPO
Madison Truax Field
Tue 11/3
6:09 am-9:30 am
1 stop21h 21m
Porto
Tue 11/10
12:35 pm-11:37 pm
1 stop17h 02m
$809
MadisonPorto
MSN - OPO
MSNOPO
Madison Truax Field
Mon 8/17
3:07 pm-10:30 am
1 stop13h 23m
Porto
Wed 8/26
5:00 am-5:48 pm
2 stops18h 48m
$866
MadisonPorto
MSN - OPO
MSNOPO
Madison Truax Field
Mon 8/17
10:57 am-6:55 am
1 stop13h 58m
Porto
Wed 8/26
11:20 am-1:42 pm
2 stops32h 22m
$888
Cheapest one-way
MadisonPorto
MSN - OPO
MSNOPO
Madison Truax Field
Sat 9/12
5:56 pm-6:55 am
2 stops30h 59m
$469
MadisonPorto
MSN - OPO
MSNOPO
Madison Truax Field
Sun 7/12
7:55 pm-9:45 pm
3 stops43h 50m
$474
MadisonPorto
MSN - OPO
MSNOPO
Madison Truax Field
Sat 9/12
10:33 am-11:45 am
3 stops43h 12m
$595
Showing 1-10 of 13 resultsSorted 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.
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 June 27, 2026.
See what other customers who have flown with KLM and Delta 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.
Overall
7.8
Crew
8.4
Food
7.3
Entertainment
7.2
Boarding
7.8
Comfort
7.7
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Overall
7.8
Crew
8.4
Food
7.3
Entertainment
7.2
Boarding
7.8
Comfort
7.7
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Overall
7.8
Crew
8.4
Food
7.3
Entertainment
7.2
Boarding
7.8
Comfort
7.7
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
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
Aveiro
Arcos de Valdevez
Coimbra
Browse thousands of different options on Cheapflights for your next trip
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Madison and Porto flights
Browse other Madison and Porto flight options. Last updated on June 27, 2026.
Other flights from Madison
Browse through other flights departing from Madison. Flights are based on user searches made on Cheapflights and were last updated on June 27, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to Porto
Explore flights to Porto departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on June 27, 2026.
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 June 27, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$700 | Average$846 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$711 | Average$842 | FlexibilityNo cancel fee | On-timeN/A |