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

Prices for flights from Milwaukee-Mitchell Airport to Portugal are updated daily.

How many operators does momondo search for flights from Milwaukee-Mitchell Airport to Portugal?

There are 3 operators available for flights from Milwaukee-Mitchell Airport to Portugal as of January 2026.

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

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 Portugal.

What documentation or ID do you need to fly to Portugal?

The necessary travel and health documents for your Portugal trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$481 Cheap Flights from Milwaukee to Portugal in 2026

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Find the cheapest flights from Milwaukee to Portugal

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

1:25 pm - 9:30 am

MKE

OPO

14h 05m

2 stops

6:00 am - 6:43 pm

OPO

MKE

18h 43m

2 stops

$481United Airlines

Thu, Feb 26 - Mon, Mar 2

11:30 am - 9:30 am

MKE

OPO

16h 00m

2 stops

12:30 pm - 10:28 pm

OPO

MKE

15h 58m

2 stops

$492United Airlines

Thu, Feb 26 - Wed, Mar 4

7:00 am - 9:00 am

MKE

LIS

20h 00m

1 stop

5:00 am - 6:11 pm

LIS

MKE

19h 11m

2 stops

$499KLM

Sat, Feb 28 - Sat, Mar 7

1:25 pm - 11:30 pm

MKE

LIS

28h 05m

2 stops

5:00 am - 4:38 pm

LIS

MKE

41h 38m

2 stops

$505Lufthansa

Sun, Mar 1 - Sun, Mar 8

7:00 am - 9:00 am

MKE

LIS

20h 00m

1 stop

11:15 am - 6:11 pm

LIS

MKE

12h 56m

1 stop

$508KLM

Sat, Feb 28 - Sat, Mar 7

11:39 am - 9:30 am

MKE

OPO

15h 51m

1 stop

6:00 am - 8:55 pm

OPO

MKE

20h 55m

2 stops

$508Lufthansa

Thu, Feb 26 - Wed, Mar 4

11:21 am - 8:05 pm

MKE

LIS

26h 44m

2 stops

8:55 am - 6:25 pm

LIS

MKE

15h 30m

2 stops

$522Iberia

Wed, Apr 22 - Wed, Apr 29

11:21 am - 8:05 pm

MKE

LIS

26h 44m

2 stops

8:55 am - 6:25 pm

LIS

MKE

15h 30m

2 stops

$523Iberia

Wed, Apr 22 - Wed, Apr 29

7:00 am - 10:30 am

MKE

OPO

21h 30m

2 stops

5:00 am - 8:36 pm

OPO

MKE

21h 36m

2 stops

$656Delta

Wed, Feb 25 - Wed, Mar 4

6:00 am - 10:25 am

MKE

OPO

22h 25m

2 stops

11:15 am - 5:13 pm

OPO

MKE

35h 58m

2 stops

$667Delta

Thu, Feb 26 - Mon, Mar 2

KLM flights from Milwaukee to Portugal

Our best KLM deals on Milwaukee to Portugal flight tickets

KLM

Feb 28

MKE7:00 amMilwaukee-Mitchell

20h 00m

1 stop

LIS9:00 amLisbon Humberto Delgado

Mar 7

LIS5:00 amLisbon Humberto Delgado

19h 11m

2 stops

MKE6:11 pmMilwaukee-Mitchell

$499

KLM

Feb 28

MKE7:00 amMilwaukee-Mitchell

20h 00m

1 stop

LIS9:00 amLisbon Humberto Delgado

Mar 7

LIS11:15 amLisbon Humberto Delgado

12h 56m

1 stop

MKE6:11 pmMilwaukee-Mitchell

$508

KLM

Feb 28

MKE7:00 amMilwaukee-Mitchell

20h 00m

1 stop

LIS9:00 amLisbon Humberto Delgado

Mar 7

LIS5:00 amLisbon Humberto Delgado

19h 11m

2 stops

MKE6:11 pmMilwaukee-Mitchell

$574

Iberia flights from Milwaukee to Portugal

Our best Iberia deals on Milwaukee to Portugal flight tickets

Iberia

Apr 22

MKE11:21 amMilwaukee-Mitchell

26h 44m

2 stops

LIS8:05 pmLisbon Humberto Delgado

Apr 29

LIS8:55 amLisbon Humberto Delgado

15h 30m

2 stops

MKE6:25 pmMilwaukee-Mitchell

$522

Iberia

Apr 22

MKE11:21 amMilwaukee-Mitchell

26h 44m

2 stops

LIS8:05 pmLisbon Humberto Delgado

Apr 29

LIS8:55 amLisbon Humberto Delgado

15h 30m

2 stops

MKE6:25 pmMilwaukee-Mitchell

$523

Iberia

May 1

MKE11:21 amMilwaukee-Mitchell

18h 24m

2 stops

OPO11:45 amPorto

May 10

OPO8:20 amPorto

16h 05m

2 stops

MKE6:25 pmMilwaukee-Mitchell

$759

Fly from

Fly to

Route

Depart

Return

Price

MilwaukeePorto

MKE - OPO

MKEOPO

Milwaukee-Mitchell

Thu 2/26

1:25 pm-9:30 am

2 stops14h 05m

Porto

Mon 3/2

6:00 am-6:43 pm

2 stops18h 43m

$481

MilwaukeePorto

MKE - OPO

MKEOPO

Milwaukee-Mitchell

Thu 2/26

11:30 am-9:30 am

2 stops16h 00m

Porto

Wed 3/4

12:30 pm-10:28 pm

2 stops15h 58m

$492

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

Sat 2/28

7:00 am-9:00 am

1 stop20h 00m

Lisbon Humberto Delgado

Sat 3/7

5:00 am-6:11 pm

2 stops19h 11m

$499

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

Sun 3/1

1:25 pm-11:30 pm

2 stops28h 05m

Lisbon Humberto Delgado

Sun 3/8

5:00 am-4:38 pm

2 stops41h 38m

$505

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

Sat 2/28

7:00 am-9:00 am

1 stop20h 00m

Lisbon Humberto Delgado

Sat 3/7

11:15 am-6:11 pm

1 stop12h 56m

$508

MilwaukeePorto

MKE - OPO

MKEOPO

Milwaukee-Mitchell

Thu 2/26

11:39 am-9:30 am

1 stop15h 51m

Porto

Wed 3/4

6:00 am-8:55 pm

2 stops20h 55m

$508

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

Wed 4/22

11:21 am-8:05 pm

2 stops26h 44m

Lisbon Humberto Delgado

Wed 4/29

8:55 am-6:25 pm

2 stops15h 30m

$522

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

Wed 4/22

11:21 am-8:05 pm

2 stops26h 44m

Lisbon Humberto Delgado

Wed 4/29

8:55 am-6:25 pm

2 stops15h 30m

$523

MilwaukeePorto

MKE - OPO

MKEOPO

Milwaukee-Mitchell

Wed 2/25

7:00 am-10:30 am

2 stops21h 30m

Porto

Wed 3/4

5:00 am-8:36 pm

2 stops21h 36m

$656

MilwaukeePorto

MKE - OPO

MKEOPO

Milwaukee-Mitchell

Thu 2/26

6:00 am-10:25 am

2 stops22h 25m

Porto

Mon 3/2

11:15 am-5:13 pm

2 stops35h 58m

$667

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 resultsSorted by cheapest first

How to get the cheapest flight ticket from Milwaukee to Portugal

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

What is the cheapest airline that flies from Milwaukee-Mitchell to Portugal?

United Airlines, Air Canada, and American Airlines are the most popular carriers operating from Milwaukee-Mitchell to Portugal

What airlines fly to Portugal?

TAP AIR PORTUGAL, United Airlines and British Airways are the top three most popular airlines that fly to Portugal from Milwaukee according to our data. TAP AIR PORTUGAL is the first choice among our users, with 58% of people opting to fly with this airline when traveling to Portugal. Keep in mind that there are 18 different airlines that fly to Portugal on a routine basis, so you have a few additional options to choose from.

Cheap Milwaukee to Portugal flight deals and tips

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

Fastest flight time	10h 39m
Direct flights	None

The fastest flight from Milwaukee to Portugal takes 10h 39m

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

Search flight deals

When did momondo last update prices for flights from Milwaukee-Mitchell Airport to Portugal?
Prices for flights from Milwaukee-Mitchell Airport to Portugal are updated daily.
How many operators does momondo search for flights from Milwaukee-Mitchell Airport to Portugal?
There are 3 operators available for flights from Milwaukee-Mitchell Airport to Portugal as of January 2026.
How old do you have to be to fly from Milwaukee-Mitchell Airport to Portugal?
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 Portugal.
What documentation or ID do you need to fly to Portugal?
The necessary travel and health documents for your Portugal trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Milwaukee to Portugal

Compare and see reviews for airlines that fly from Milwaukee to Portugal with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $509	Free Cancellation	Rating 7.4 9,219 reviews	Search United Airlines flights
Delta	PriceFrom $595	Free Cancellation	Rating 7.9 8,130 reviews	Search Delta flights
American Airlines	PriceFrom $703	Free Cancellation	Rating 7.2 11,212 reviews	Search American Airlines flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Milwaukee to Portugal. Millions of users trust and use momondo every year so you are in good hands.

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

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

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Milwaukee to Portugal.

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

Yes. momondo can track prices for Milwaukee to Portugal 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.