What airlines fly to Porto?

TAP AIR PORTUGAL, United Airlines and Lufthansa are the top three most popular airlines that fly to Porto from Milwaukee according to our data. TAP AIR PORTUGAL is the first choice among our users, with 54% of people opting to fly with this airline when traveling to Porto. Keep in mind that there are 5 different airlines that fly to Porto on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Milwaukee-Mitchell Airport to Porto Airport?

Prices for flights from Milwaukee-Mitchell Airport to Porto Airport refresh daily.

How old do you have to be to fly from Milwaukee-Mitchell Airport to Porto Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Milwaukee-Mitchell Airport to Porto Airport.

What documentation or ID do you need to fly to Porto Airport?

The travel and health documents required for your trip to Porto Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Porto Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$764 Cheap Flights from Milwaukee to Porto in 2026/27

Find the cheapest flights from Milwaukee to Porto

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:00 am - 10:35 amMKE Milwaukee-Mitchell-OPO Porto

21h 35m2 stops Boston Logan Intl Paris Charles de Gaulle

5:00 am - 4:07 pmOPO Porto-MKE Milwaukee-Mitchell

17h 07m2 stops Amsterdam Schiphol Detroit Metropolitan Wayne County

$764Delta

Wed, Jan 6 - Tue, Jan 19

11:07 am - 9:30 amMKE Milwaukee-Mitchell-OPO Porto

16h 23m1 stop Newark

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

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

$804United Airlines

Thu, Nov 26 - Thu, Dec 3

11:07 am - 9:30 amMKE Milwaukee-Mitchell-OPO Porto

16h 23m1 stop Newark

6:00 am - 9:55 pmOPO Porto-MKE Milwaukee-Mitchell

21h 55m2 stops Frankfurt am Main Chicago O'Hare Intl

$804United Airlines

Fri, Nov 27 - Fri, Dec 4

11:07 am - 9:30 amMKE Milwaukee-Mitchell-OPO Porto

16h 23m1 stop Newark

6:00 am - 8:55 pmOPO Porto-MKE Milwaukee-Mitchell

20h 55m2 stops Frankfurt am Main Chicago O'Hare Intl

$807United Airlines

Tue, Nov 24 - Tue, Dec 1

9:48 am - 9:30 amMKE Milwaukee-Mitchell-OPO Porto

17h 42m2 stops Chicago O'Hare Intl Newark

6:00 am - 9:55 pmOPO Porto-MKE Milwaukee-Mitchell

21h 55m2 stops Frankfurt am Main Chicago O'Hare Intl

$808United Airlines

Fri, Nov 27 - Fri, Dec 4

6:18 pm - 9:30 amMKE Milwaukee-Mitchell-OPO Porto

33h 12m2 stops Chicago O'Hare Intl Newark

6:00 am - 8:52 pmOPO Porto-MKE Milwaukee-Mitchell

20h 52m2 stops Frankfurt am Main Chicago O'Hare Intl

$808United Airlines

Mon, Nov 9 - Tue, Nov 17

5:00 am - 9:30 amMKE Milwaukee-Mitchell-OPO Porto

22h 30m2 stops Chicago O'Hare Intl Newark

6:00 am - 9:55 pmOPO Porto-MKE Milwaukee-Mitchell

21h 55m2 stops Frankfurt am Main Chicago O'Hare Intl

$808United Airlines

Thu, Nov 26 - Thu, Dec 3

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

32h 27m1 stop Newark

6:00 am - 8:52 pmOPO Porto-MKE Milwaukee-Mitchell

20h 52m2 stops Frankfurt am Main Chicago O'Hare Intl

$810United Airlines

Mon, Nov 9 - Tue, Nov 17

12:42 pm - 10:35 amMKE Milwaukee-Mitchell-OPO Porto

15h 53m2 stops Atlanta Hartsfield-Jackson Paris Charles de Gaulle

5:00 am - 9:31 pmOPO Porto-MKE Milwaukee-Mitchell

22h 31m2 stops Amsterdam Schiphol Minneapolis St Paul

$811Delta

Tue, Nov 24 - Tue, Dec 1

10:48 am - 9:30 amMKE Milwaukee-Mitchell-OPO Porto

16h 42m2 stops Chicago O'Hare Intl Newark

6:00 am - 10:15 pmOPO Porto-MKE Milwaukee-Mitchell

22h 15m2 stops Frankfurt am Main Chicago O'Hare Intl

$811United Airlines

Tue, Nov 24 - Tue, Dec 1

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Delta flights from Milwaukee to Porto

Our best Delta deals on Milwaukee to Porto flight tickets

Delta

Jan 6

MKE7:00 amMilwaukee-Mitchell

21h 35m

2 stops

OPO10:35 amPorto

Jan 19

OPO5:00 amPorto

17h 07m

2 stops

MKE4:07 pmMilwaukee-Mitchell

$764

Delta

Nov 24

MKE12:42 pmMilwaukee-Mitchell

15h 53m

2 stops

OPO10:35 amPorto

Dec 1

OPO5:00 amPorto

22h 31m

2 stops

MKE9:31 pmMilwaukee-Mitchell

$811

United Airlines flights from Milwaukee to Porto

Our best United Airlines deals on Milwaukee to Porto flight tickets

United Airlines

Nov 26

MKE11:07 amMilwaukee-Mitchell

16h 23m

1 stop

OPO9:30 amPorto

Dec 3

OPO6:00 amPorto

18h 48m

2 stops

MKE6:48 pmMilwaukee-Mitchell

$804

United Airlines

Nov 24

MKE11:07 amMilwaukee-Mitchell

16h 23m

1 stop

OPO9:30 amPorto

Dec 1

OPO6:00 amPorto

20h 55m

2 stops

MKE8:55 pmMilwaukee-Mitchell

$807

United Airlines

Nov 9

MKE6:18 pmMilwaukee-Mitchell

33h 12m

2 stops

OPO9:30 amPorto

Nov 17

OPO6:00 amPorto

20h 52m

2 stops

MKE8:52 pmMilwaukee-Mitchell

$808

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MilwaukeePorto

MKE Milwaukee-Mitchell - OPO Porto

MKEOPO

Milwaukee-Mitchell

Wed 1/6

7:00 am-10:35 am

2 stops21h 35m

Porto

Tue 1/19

5:00 am-4:07 pm

2 stops17h 07m

$764

Quickest round-trip

MilwaukeePorto

MKE Milwaukee-Mitchell - OPO Porto

MKEOPO

Milwaukee-Mitchell

Thu 11/26

11:07 am-9:30 am

1 stop16h 23m

Porto

Thu 12/3

6:00 am-6:48 pm

2 stops18h 48m

$804

MilwaukeePorto

MKE Milwaukee-Mitchell - OPO Porto

MKEOPO

Milwaukee-Mitchell

Fri 11/27

11:07 am-9:30 am

1 stop16h 23m

Porto

Fri 12/4

6:00 am-9:55 pm

2 stops21h 55m

$804

MilwaukeePorto

MKE Milwaukee-Mitchell - OPO Porto

MKEOPO

Milwaukee-Mitchell

Tue 11/24

11:07 am-9:30 am

1 stop16h 23m

Porto

Tue 12/1

6:00 am-8:55 pm

2 stops20h 55m

$807

MilwaukeePorto

MKE Milwaukee-Mitchell - OPO Porto

MKEOPO

Milwaukee-Mitchell

Fri 11/27

9:48 am-9:30 am

2 stops17h 42m

Porto

Fri 12/4

6:00 am-9:55 pm

2 stops21h 55m

$808

MilwaukeePorto

MKE Milwaukee-Mitchell - OPO Porto

MKEOPO

Milwaukee-Mitchell

Mon 11/9

6:18 pm-9:30 am

2 stops33h 12m

Porto

Tue 11/17

6:00 am-8:52 pm

2 stops20h 52m

$808

MilwaukeePorto

MKE Milwaukee-Mitchell - OPO Porto

MKEOPO

Milwaukee-Mitchell

Thu 11/26

5:00 am-9:30 am

2 stops22h 30m

Porto

Thu 12/3

6:00 am-9:55 pm

2 stops21h 55m

$808

MilwaukeePorto

MKE Milwaukee-Mitchell - OPO Porto

MKEOPO

Milwaukee-Mitchell

Mon 11/9

7:03 pm-9:30 am

1 stop32h 27m

Porto

Tue 11/17

6:00 am-8:52 pm

2 stops20h 52m

$810

MilwaukeePorto

MKE Milwaukee-Mitchell - OPO Porto

MKEOPO

Milwaukee-Mitchell

Tue 11/24

12:42 pm-10:35 am

2 stops15h 53m

Porto

Tue 12/1

5:00 am-9:31 pm

2 stops22h 31m

$811

MilwaukeePorto

MKE Milwaukee-Mitchell - OPO Porto

MKEOPO

Milwaukee-Mitchell

Tue 11/24

10:48 am-9:30 am

2 stops16h 42m

Porto

Tue 12/1

6:00 am-10:15 pm

2 stops22h 15m

$811

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from Milwaukee to Porto

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Can stopping save me money on Milwaukee to Porto flights?

You could potentially save up to 48% on your flight if you consider stops on a Milwaukee to Porto flight.

When to book flights from Milwaukee to Porto

Are you open to changing your travel dates? Check out the ideal times to fly from Milwaukee to Porto according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Milwaukee to Porto (MKE to OPO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Milwaukee to Porto

Best Price Found	$764
Fastest flight time	15h 35m
Direct flights	None

The best flight deal from Milwaukee to Porto found on momondo in the last 72 hours is $764

The fastest flight from Milwaukee to Porto takes 15h 35m

There are no direct flights from Milwaukee to Porto. There are no popular flight routes from Milwaukee to Porto.

Search flight deals

Frequently asked questions about flying from Milwaukee to Porto

How far is Milwaukee-Mitchell to Porto by plane?
There are 3902.8 mi between Milwaukee-Mitchell and Porto. Flights usually cover this in 15h 35m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Milwaukee-Mitchell Airport to Porto Airport?
Prices for flights from Milwaukee-Mitchell Airport to Porto Airport refresh daily.
How old do you have to be to fly from Milwaukee-Mitchell Airport to Porto Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Milwaukee-Mitchell Airport to Porto Airport.
What documentation or ID do you need to fly to Porto Airport?
The travel and health documents required for your trip to Porto Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Porto Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Coimbra

Braga

Vila Nova de Gaia

Aveiro

Pinhao

Matosinhos

Esposende

Chaves

Viseu

Espinho

Arcos de Valdevez

Guimarães

Lamego

Ponte de Lima

Caminha

Penafiel

Mira

Why use momondo?

Why should I use momondo to find a flight deal from Milwaukee to Porto?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Milwaukee to Porto. momondo saves you time and could save you money on your trip.

Can I find flights from Milwaukee to Porto with flexible booking policies on momondo?

All flight searches from Milwaukee to Porto on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Milwaukee to Porto?

momondo helps you find the best flight between Milwaukee and Porto by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Milwaukee to Porto right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Milwaukee to Porto flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Cheap flights from Milwaukee to Porto from $764

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Milwaukee to Porto departing on 1/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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How to get the cheapest flight ticket from Milwaukee to Porto

Can stopping save me money on Milwaukee to Porto flights?

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When to book flights from Milwaukee to Porto

Cheap Milwaukee to Porto (MKE to OPO) flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Milwaukee to Porto

Traveling to a place near Porto?

Why use momondo?

An easier way to manage your Porto trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Portugal

Airports servicing Portugal

Fly your favorite airline to Porto

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Porto

List of cabin classes available on flights landing in Porto. Availability may vary depending on flight origin and airline.

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