Which airports can I use when flying from Milwaukee to Porto?

Flights from Milwaukee to Porto usually depart from Milwaukee-Mitchell (MKE) and arrive at Porto (OPO).

What cabin classes can I book on flights from Milwaukee to Porto?

Two cabin classes are available on flights from Milwaukee to Porto: • Economy Class • First Class

Which airports do connecting flights from Milwaukee to Porto pass through?

Most connecting flights from Milwaukee to Porto pass through Newark (EWR), which handles 100% of one-stop traffic on this route.

Can I save money by using flexible dates for flights from Milwaukee to Porto?

Yes. Flexible dates can save you up to 33% on flights from Milwaukee to Porto. Thursday is the cheapest departure day at $878 round-trip on average, while Tuesday is the most expensive at $1,309, a difference of $431. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

What popular places can I visit in Porto?

Some of the most popular sights in Porto are Ribeira Square, Avenida dos Aliados and Mercado do Bolhão. These are among the most viewed places in Porto on KAYAK.

Do I need a passport to fly from Milwaukee to Porto?

Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

Have flight prices from Milwaukee to Porto changed much recently?

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $774 to $4,343. That means the highest observed fare was about 6x higher than the lowest one.

How are flight prices from Milwaukee to Porto looking right now?

One-way fares from Milwaukee to Porto are currently higher than usual. Average one-way flight prices are about $550, which is 56% above the typical average for this route.

What is the time difference between Milwaukee and Porto?

Porto is 6 hours ahead of Milwaukee (Western European Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

What car rental options are available at Porto Airport (OPO)?

Porto Airport (OPO) hosts 5 major car rental companies, with daily rates averaging $23 for economy cars. Top options include: • GREEN MOTION • Drive on Holiday • Klass Wagen • Goldcar Rental SP • Sixt

How much should I expect to pay for a Milwaukee to Porto flight?

Round-trip flights from Milwaukee to Porto range from $878 to $1,122, with an average of $920 over the past 12 months. Anything below $878 counts as a good deal.

How much is a round-trip flight from Milwaukee to Porto?

Round-trip flights from Milwaukee to Porto typically range from $878 to $1,122. The lowest price found in the past 5 days was $774, on Delta.

Which airline is the cheapest to fly from Milwaukee to Porto?

Delta ($774) and United Airlines ($800) are the cheapest airlines to fly round-trip from Milwaukee to Porto according to KAYAK data over the last 5 days.

What is the cheapest layover airport when flying from Milwaukee to Porto?

Flights via Newark (EWR) offer the most affordable fares, with an average round-trip price of $1,187. Based on KAYAK data over the past 3 months.

When flying from Milwaukee to Porto which airport offers the shortest layover?

Newark (EWR) had the shortest average connection time for Milwaukee to Porto layovers at 9h 49m over the past 3 months.

$447 CHEAP FLIGHTS from Milwaukee to Porto (MKE - OPO)

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Cheapest round-trip

$774

Typical prices: $878-$1,122

Delta

Sat 1/6Fri 1/19

MKE - OPO • 2 stops

Cheapest one-way

$447

Typical prices: $351-$358

Multiple Airlines

Tue 12/4

MKE - OPO • 3 stops

When to travel

October

Cheapest • 6% price drop

May

Most popular

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Flight Deals

Cheap Flights from Milwaukee to Porto (MKE-OPO)

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip flight deals from Milwaukee to Porto

Wed, Jan 6 - Tue, Jan 19

6:00 am - 10:35 amMKE Milwaukee-Mitchell-OPO Porto

22h 35m2 stops Boston Logan Intl Paris Charles de Gaulle

5:00 am - 8:12 pmOPO Porto-MKE Milwaukee-Mitchell

21h 12m2 stops Amsterdam Schiphol Detroit Metropolitan Wayne County

$774Delta

Mon, Nov 30 - Mon, Dec 7

9:17 am - 9:30 amMKE Milwaukee-Mitchell-OPO Porto

18h 13m2 stops Chicago O'Hare Intl Newark

12:30 pm - 8:55 pmOPO Porto-MKE Milwaukee-Mitchell

38h 25m2 stops Frankfurt am Main Chicago O'Hare Intl

$800United Airlines

Mon, Nov 30 - Mon, Dec 7

7:03 pm - 9:30 amMKE Milwaukee-Mitchell-OPO Porto

32h 27m1 stop Newark

4:10 pm - 3:03 pmOPO Porto-MKE Milwaukee-Mitchell

28h 53m2 stops Frankfurt am Main Chicago O'Hare Intl

$801Multiple Airlines

Thu, Dec 3 - Tue, Dec 8

10:55 am - 9:30 amMKE Milwaukee-Mitchell-OPO Porto

16h 35m1 stop Newark

6:00 am - 6:03 pmOPO Porto-MKE Milwaukee-Mitchell

18h 03m2 stops Frankfurt am Main Newark

$814United Airlines

Thu, Dec 3 - Tue, Dec 8

12:18 pm - 9:30 amMKE Milwaukee-Mitchell-OPO Porto

15h 12m2 stops Chicago O'Hare Intl Newark

6:00 am - 6:48 pmOPO Porto-MKE Milwaukee-Mitchell

18h 48m2 stops Frankfurt am Main Chicago O'Hare Intl

$818United Airlines

Tue, Dec 15 - Tue, Dec 22

2:38 pm - 9:30 amMKE Milwaukee-Mitchell-OPO Porto

12h 52m2 stops Chicago O'Hare Intl Newark

6:00 am - 5:51 pmOPO Porto-MKE Milwaukee-Mitchell

17h 51m2 stops Frankfurt am Main Chicago O'Hare Intl

$852United Airlines

Tue, Dec 15 - Tue, Dec 22

10:55 am - 9:30 amMKE Milwaukee-Mitchell-OPO Porto

16h 35m1 stop Newark

6:00 am - 5:51 pmOPO Porto-MKE Milwaukee-Mitchell

17h 51m2 stops Frankfurt am Main Chicago O'Hare Intl

$883United Airlines

Sat, May 1 - Mon, May 10

1:53 pm - 8:00 pmMKE Milwaukee-Mitchell-OPO Porto

24h 07m2 stops Chicago O'Hare Intl Madrid Barajas

8:40 pm - 7:57 pmOPO Porto-MKE Milwaukee-Mitchell

29h 17m2 stops Madrid Barajas Chicago O'Hare Intl

$948Iberia

Wed, Dec 16 - Wed, Dec 23

2:38 pm - 9:30 amMKE Milwaukee-Mitchell-OPO Porto

12h 52m2 stops Chicago O'Hare Intl Newark

6:00 am - 6:56 pmOPO Porto-MKE Milwaukee-Mitchell

18h 56m2 stops Frankfurt am Main Chicago O'Hare Intl

$994United Airlines

Fri, Dec 25 - Tue, Dec 29

1:10 pm - 10:30 amMKE Milwaukee-Mitchell-OPO Porto

15h 20m2 stops Detroit Metropolitan Wayne County Amsterdam Schiphol

9:55 am - 11:59 pmOPO Porto-MKE Milwaukee-Mitchell

20h 04m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson

$1,013KLM

Booking Insights

Price, demand and travel trends for Milwaukee to Porto flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

Prices

Airlines

Layovers

How much is a round-trip flight from Milwaukee to Porto? This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Milwaukee to Porto departing in january.

Find deals

High season	May
Cheapest flight	$447

The most popular month to fly with an average 11% increase in travelers.

One-way flight from Milwaukee to Porto

When to book flights from Milwaukee to Porto

Are your dates flexible? Find out the best times to travel from Milwaukee to Porto based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated round-trip price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

What cabin classes can I book on flights from Milwaukee to Porto?
Two cabin classes are available on flights from Milwaukee to Porto:

• Economy Class
• First Class
Do I need a passport to fly from Milwaukee to Porto?
Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.
How much should I expect to pay for a Milwaukee to Porto flight?
Round-trip flights from Milwaukee to Porto range from $878 to $1,122, with an average of $920 over the past 12 months. Anything below $878 counts as a good deal.
Have flight prices from Milwaukee to Porto changed much recently?
Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $774 to $4,343. That means the highest observed fare was about 6x higher than the lowest one.
How are flight prices from Milwaukee to Porto looking right now?
One-way fares from Milwaukee to Porto are currently higher than usual. Average one-way flight prices are about $550, which is 56% above the typical average for this route.
What car rental options are available at Porto Airport (OPO)?
Porto Airport (OPO) hosts 5 major car rental companies, with daily rates averaging $23 for economy cars. Top options include:

• GREEN MOTION
• Drive on Holiday
• Klass Wagen
• Goldcar Rental SP
• Sixt
Which airports can I use when flying from Milwaukee to Porto?
Flights from Milwaukee to Porto usually depart from Milwaukee-Mitchell (MKE) and arrive at Porto (OPO).
Which airports do connecting flights from Milwaukee to Porto pass through?
Most connecting flights from Milwaukee to Porto pass through Newark (EWR), which handles 100% of one-stop traffic on this route.
Can I save money by using flexible dates for flights from Milwaukee to Porto?
Yes. Flexible dates can save you up to 33% on flights from Milwaukee to Porto. Thursday is the cheapest departure day at $878 round-trip on average, while Tuesday is the most expensive at $1,309, a difference of $431.

KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.
What is the time difference between Milwaukee and Porto?
Porto is 6 hours ahead of Milwaukee (Western European Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.
What popular places can I visit in Porto?
Some of the most popular sights in Porto are Ribeira Square, Avenida dos Aliados and Mercado do Bolhão. These are among the most viewed places in Porto on KAYAK.

If your dates are flexible, aim for a Thursday departure and avoid flying on Tuesday. On this route, Thursday flights average $878, about $431 less than Tuesday fares (33% savings) based on the last 12 months.
If you can choose when to travel, plan your Milwaukee to Porto trip for October. Fares historically average $863 round-trip in that month - typically $397 less than the most expensive month, which is April (based on the last 12 months).
If you're arriving late at night and need somewhere to stay, check out these hotels close to Porto Airport.

• Ap Aeroporto Porto

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MKE - OPO

$447 Find Cheap Flights from Milwaukee to Porto - Compare and Save

Everything you should know

Cheap Flights from Milwaukee to Porto (MKE-OPO)

Recent round-trip flight deals from Milwaukee to Porto

Recent one-way flight deals from Milwaukee to Porto

Recent last minute flight deals from Milwaukee to Porto

Price, demand and travel trends for Milwaukee to Porto flights

How much is a round-trip flight from Milwaukee to Porto?

Which airline is the cheapest to fly from Milwaukee to Porto?

What is the cheapest layover airport when flying from Milwaukee to Porto?

When flying from Milwaukee to Porto which airport offers the shortest layover?

Key details for Milwaukee to Porto flights

High season

Cheapest flight

When to book flights from Milwaukee to Porto

Your Milwaukee to Porto flight questions, answered

Your guide to booking Milwaukee to Porto flights

More options for your flight from Milwaukee to Porto

Complete your trip to Porto with a hotel stay or car rental

Information on your arrival and departure airports

Cabin class types available on flights from Milwaukee to Porto

Find direct flights to and from Milwaukee and Porto

Flights from domestic origins to Porto

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