HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news

Cheap flights from Milwaukee (MKE) to Porto (OPO) from $849

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/23. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
MKE — OPO
Jun 2 — Jun 91
From?
To?
Sun 6/2
Sun 6/9
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Cheap flight deals from Milwaukee to Porto

Discover tips and strategies to find the most affordable flight options for your journey from Milwaukee (MKE) 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 28, 2024.

Round-trip from

$523
From Milwaukee-Mitchell to Porto
Search Deals

When is the cheapest time to fly from Milwaukee to Porto (MKE - OPO)?

When flying from Milwaukee to Porto, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Cheap United Airlines flights from Milwaukee to Porto

Explore cheap flight options specifically provided by United Airlines for the route between Milwaukee and Porto. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,696,634 searches. Data last updated May 28, 2024.
Peruse some of the lowest-priced United Airlines flights we've found from Milwaukee to Porto. Make sure to check back often as deals are often changing.
Sat 11/232:17 pmMKE - OPO
2 stops43h 08mUnited Airlines
Sat 11/3012:30 pmOPO - MKE
2 stops32h 47mUnited Airlines
Deal found 5/28$849
Fri 7/57:00 amMKE - OPO
1 stop20h 45mUnited Airlines
Sun 7/76:00 amOPO - MKE
2 stops22h 19mUnited Airlines
Deal found 5/28$1,665

Cheap Delta flights from Milwaukee to Porto

Explore cheap flight options specifically provided by Delta for the route between Milwaukee and Porto. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,696,634 searches. Data last updated May 28, 2024.
Browse through some of the cheapest Delta flights traveling from Milwaukee to Porto. Check back soon if you're not seeing flights that suit your needs.
Fri 10/41:30 pmMKE - OPO
2 stops20h 00mDelta
Fri 10/116:30 amOPO - MKE
2 stops19h 16mDelta
Deal found 5/28$974
Fri 7/54:59 pmMKE - OPO
2 stops16h 31mDelta
Sun 7/79:15 amOPO - MKE
2 stops20h 34mDelta
Deal found 5/28$1,403

Milwaukee to Porto 2024 flight deals

Discover exclusive flight deals for travel between Milwaukee and Porto in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,696,634 searches. Data last updated May 28, 2024.
Listed are some of the best fares we've found on flights departing from Milwaukee to Porto in 2024. Check back regularly for other flight deals.
Sat 11/232:17 pmMKE - OPO
2 stops43h 08mUnited Airlines
Sat 11/3012:30 pmOPO - MKE
2 stops32h 47mUnited Airlines
Deal found 5/28$849
Fri 10/41:30 pmMKE - OPO
2 stops20h 00mDelta
Fri 10/116:30 amOPO - MKE
2 stops19h 16mDelta
Deal found 5/28$974
Fri 7/54:59 pmMKE - OPO
2 stops16h 31mDelta
Sun 7/79:15 amOPO - MKE
2 stops20h 34mDelta
Deal found 5/28$1,403
Sat 11/237:28 amMKE - OPO
2 stops18h 12mAmerican Airlines
Sat 11/308:20 amOPO - MKE
3 stops30h 43mAmerican Airlines
Deal found 5/28$1,471
Mon 5/274:05 pmMKE - OPO
2 stops37h 15mUnited Airlines
Fri 6/149:05 amOPO - MKE
2 stops17h 50mUnited Airlines
Deal found 5/27$1,611
Fri 7/57:00 amMKE - OPO
1 stop20h 45mUnited Airlines
Sun 7/76:00 amOPO - MKE
2 stops22h 19mUnited Airlines
Deal found 5/28$1,665
Mon 5/274:05 pmMKE - OPO
2 stops32h 50mUnited Airlines
Fri 6/149:05 amOPO - MKE
1 stop14h 31mUnited Airlines
Deal found 5/27$1,873
Fri 7/512:05 pmMKE - OPO
1 stop15h 40mMultiple Airlines
Sun 7/79:00 amOPO - MKE
1 stop32h 13mMultiple Airlines
Deal found 5/28$1,949
Fri 10/43:55 pmMKE - OPO
3 stops17h 25mAir Canada
Fri 10/1110:00 amOPO - MKE
3 stops18h 15mAir Canada
Deal found 5/27$2,137

Find flights from Milwaukee to Porto within your budget

Customize your flight search to find flights from Milwaukee 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 2,696,634 searches. Data last updated May 28, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$849 - $2,907

Route

Depart

Return

Price

Milwaukee-MitchellPorto

MKE - OPO

MKEOPO

Milwaukee-Mitchell

Sat 11/23

2 stops43h 08m

Porto

Sat 11/30

2 stops32h 47m

$849

Milwaukee-MitchellPorto

MKE - OPO

MKEOPO

Milwaukee-Mitchell

Fri 10/4

2 stops20h 00m

Porto

Fri 10/11

2 stops19h 16m

$974

Milwaukee-MitchellPorto

MKE - OPO

MKEOPO

Milwaukee-Mitchell

Fri 7/5

2 stops16h 31m

Porto

Sun 7/7

2 stops20h 34m

$1,403

Milwaukee-MitchellPorto

MKE - OPO

MKEOPO

Milwaukee-Mitchell

Sat 11/23

2 stops18h 12m

Porto

Sat 11/30

3 stops30h 43m

$1,471

Milwaukee-MitchellPorto

MKE - OPO

MKEOPO

Milwaukee-Mitchell

Fri 7/5

1 stop20h 45m

Porto

Sun 7/7

2 stops22h 19m

$1,665

Milwaukee-MitchellPorto

MKE - OPO

MKEOPO

Milwaukee-Mitchell

Fri 7/5

1 stop15h 40m

Porto

Sun 7/7

1 stop32h 13m

$1,949

Milwaukee-MitchellPorto

MKE - OPO

MKEOPO

Milwaukee-Mitchell

Fri 10/4

3 stops17h 25m

Porto

Fri 10/11

3 stops18h 15m

$2,137

Milwaukee-MitchellPorto

MKE - OPO

MKEOPO

Milwaukee-Mitchell

Fri 10/4

3 stops16h 33m

Porto

Fri 10/11

2 stops18h 51m

$2,907

Flights are sorted by cheapest first

Deals found on 5/28

No data available for this route at this time. Please check back soon.

Best time to book a flight from Milwaukee to Porto

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

Temperature and rainfall in Porto by month

Plan your trip to Porto by taking into account the average temperature and rainfall totals by month.

OPO

Temperature

48.2 - 68 °F

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 28, 2024.
See what other customers who have flown with United Airlines, Delta and American Airlines from Milwaukee 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
8.0
Very good
10,476 reviews
Check prices

Comfort

7.9

Food

7.4

Entertainment

8.0

Boarding

8.2

Crew

8.6

Overall

8.0

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Delta
8.0
Very good
10,476 reviews
Delta
8.0
Very good
10,476 reviews
Check prices

Comfort

7.9

Food

7.4

Entertainment

8.0

Boarding

8.2

Crew

8.6

Overall

8.0

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

United Airlines
7.4
Good
10,799 reviews
Delta
8.0
Very good
10,476 reviews
Check prices

Comfort

7.9

Food

7.4

Entertainment

8.0

Boarding

8.2

Crew

8.6

Overall

8.0

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

American Airlines
7.3
Good
14,316 reviews
Delta
8.0
Very good
10,476 reviews
Check prices

Comfort

7.9

Food

7.4

Entertainment

8.0

Boarding

8.2

Crew

8.6

Overall

8.0

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Air Canada
7.0
Good
6,988 reviews
Delta
8.0
Very good
10,476 reviews
Check prices

Comfort

7.9

Food

7.4

Entertainment

8.0

Boarding

8.2

Crew

8.6

Overall

8.0

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Related info for your journey

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

  • Can I find flights from Milwaukee to Porto for under $900 on Cheapflights?

    Yes, there are multiple flights from Milwaukee to Porto for under $900. The cheapest flight booked recently is on United Airlines for just $849, but on average you can expect to pay $1,669.

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

    Our cheapest airline available from Milwaukee to Porto is United Airlines. Our recent data shows that you can find tickets from as low as $849 on this airline. Additional options worth looking into are Delta and American Airlines, starting at $974 and $1,471 round-trip.

  • What does MKE to OPO mean?

    This is defined as Milwaukee-Mitchell Airport (MKE) and Porto Airport (OPO). Codes like Porto Airport are often used to just call airports uniquely.

  • Can I find deals for flights from Milwaukee to Porto that include extra baggage allowance?

    The amount of baggage you can bring on your Milwaukee to Porto flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Milwaukee to Porto with specific airlines?

    Yes, Cheapflights allows you to browse and filter Milwaukee to Porto flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Milwaukee 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.

  • Can I find deals for flights from Milwaukee to Porto that allow pets onboard?

    Many airlines flying from Milwaukee to Porto offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Milwaukee to Porto?

    Yes, you can often find last-minute deals on Milwaukee to Porto flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Milwaukee to Porto flight deals updated?

    The Milwaukee to Porto flight deals you see on this page were last updated on 5/28.

  • When is the best time to book a flight from Milwaukee to Porto?

    Currently, January is the cheapest month in which you can book a flight from Milwaukee to Porto (average of $523). Flying from Milwaukee to Porto in June is currently the most expensive (average of $995). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Milwaukee to Porto
See prices for flight routes from nearby airports that may be better suited for you.

O'Hare Intl to Lisbon flights
Minneapolis to Lisbon flights
O'Hare Intl to Porto flights
Minneapolis to Porto flights
Milwaukee to Lisbon flights
O'Hare Intl to Faro flights
O'Hare Intl to Funchal flights
O'Hare Intl to Ponta Delgada flights
Madison to Lisbon flights
O'Hare Intl to Lajes flights
Minneapolis to Ponta Delgada flights
Milwaukee to Ponta Delgada flights
Green Bay to Lisbon flights
Minneapolis to Funchal flights
Madison to Porto flights
Madison to Ponta Delgada flights
Wausau to Lisbon flights
Minneapolis to Lajes flights
Memphis to Atlanta flights
Philadelphia to Orlando flights
Los Angeles to Atlanta flights
Salt Lake City to Seattle flights
Cincinnati to Orlando flights
Miami to The Bahamas flights
Pensacola to Orlando flights
Buffalo to New York flights
Los Angeles to Madrid flights
Miami to Tampa flights
San Francisco to Toronto flights
Milwaukee to Chicago O'Hare Intl Airport flights

Search flights from Milwaukee to Porto by cabin class

Find flights from Milwaukee to Porto, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy Class

Book a flight to one of these trending destinations

User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations
Flights to Laayoune Hassan I
Flights to Virac
Flights to Figari-Sud Corse
Flights to Edremit/Korfez
Flights to Rhinelander Oneida County
Flights to Girona Costa Brava
Flights to Brainerd Crow Wing County
Flights to Parikia Paros
Flights to Cortez Montezuma County
Flights to Miyakojima Hirara
Flights to Zadar
Flights to Trapani Birgi
Flights to Provincetown
Flights to Oran Es Senia
Flights to Constanţa Mihail Kogalniceanu
Flights to Vava'u Lupepau'U
Flights to Urumqi
Flights to Hakodate
Flights to Naxos
Flights to Dalaman
Flights to Hyannis Barnstable
Flights to Devils Lake
Flights to Bastia Poretta
Flights to Karpathos

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Milwaukee to Porto?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Milwaukee to Porto. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Milwaukee to Porto?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Milwaukee to Porto for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Milwaukee to Porto with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Milwaukee to Porto flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Milwaukee to Porto become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines