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Cheap flights from Milwaukee to Portugal from $386

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Milwaukee to Portugal departing on 7/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Milwaukee to Portugal

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
12:33 pm - 11:15 am
MKE
-
LIS
16h 42m
2 stops
Multiple Airlines Logo
5:00 am - 4:22 pm
LIS
-
MKE
17h 22m
2 stops
$620Multiple Airlines
Mon, Apr 27 - Mon, May 4
Lufthansa Logo
7:41 pm - 11:35 pm
MKE
-
LIS
21h 54m
2 stops
Lufthansa Logo
5:05 am - 4:47 pm
LIS
-
MKE
17h 42m
2 stops
$621Lufthansa
Wed, Apr 22 - Wed, Apr 29
Lufthansa Logo
7:41 pm - 10:15 pm
MKE
-
LIS
20h 34m
2 stops
Lufthansa Logo
5:05 am - 8:48 pm
LIS
-
MKE
21h 43m
2 stops
$622Lufthansa
Wed, Apr 22 - Wed, Apr 29
Multiple Airlines Logo
7:10 am - 8:55 am
MKE
-
LIS
43h 45m
2 stops
Multiple Airlines Logo
7:00 am - 8:25 pm
LIS
-
MKE
19h 25m
2 stops
$642Multiple Airlines
Thu, Apr 16 - Mon, Apr 27
KLM Logo
11:56 am - 10:45 am
MKE
-
LIS
16h 49m
1 stop
KLM Logo
5:00 am - 4:22 pm
LIS
-
MKE
17h 22m
2 stops
$691KLM
Mon, Apr 27 - Mon, May 4
Delta Logo
7:10 am - 8:00 am
MKE
-
LIS
18h 50m
1 stop
Delta Logo
12:45 pm - 7:16 pm
LIS
-
MKE
12h 31m
1 stop
$693Delta
Wed, Apr 22 - Wed, Apr 29
Delta Logo
5:48 pm - 6:10 pm
MKE
-
OPO
18h 22m
2 stops
Delta Logo
5:00 am - 6:03 pm
OPO
-
MKE
19h 03m
2 stops
$737Delta
Sun, May 3 - Tue, May 19
United Airlines Logo
12:07 pm - 6:55 am
MKE
-
OPO
12h 48m
1 stop
United Airlines Logo
2:25 pm - 12:11 am
OPO
-
MKE
15h 46m
2 stops
$752United Airlines
Tue, Aug 11 - Wed, Aug 19
United Airlines Logo
12:07 pm - 6:55 am
MKE
-
OPO
12h 48m
1 stop
United Airlines Logo
12:35 pm - 12:11 am
OPO
-
MKE
17h 36m
2 stops
$753United Airlines
Tue, Aug 11 - Wed, Aug 19
American Airlines Logo
6:39 am - 7:40 am
MKE
-
OPO
19h 01m
2 stops
American Airlines Logo
8:20 am - 6:00 pm
OPO
-
MKE
15h 40m
2 stops
$765American Airlines
Tue, May 5 - Thu, May 14

Delta flights from Milwaukee to Portugal

Our best Delta deals on Milwaukee to Portugal flight tickets
Delta
Apr 22
MKE7:10 amMilwaukee-Mitchell
18h 50m
1 stop
LIS8:00 amLisbon Humberto Delgado
Apr 29
LIS12:45 pmLisbon Humberto Delgado
12h 31m
1 stop
MKE7:16 pmMilwaukee-Mitchell
$693
Delta
May 3
MKE5:48 pmMilwaukee-Mitchell
18h 22m
2 stops
OPO6:10 pmPorto
May 19
OPO5:00 amPorto
19h 03m
2 stops
MKE6:03 pmMilwaukee-Mitchell
$737
Delta
May 3
MKE5:48 pmMilwaukee-Mitchell
18h 22m
2 stops
OPO6:10 pmPorto
May 20
OPO5:55 amPorto
23h 00m
2 stops
MKE10:55 pmMilwaukee-Mitchell
$744

Lufthansa flights from Milwaukee to Portugal

Our best Lufthansa deals on Milwaukee to Portugal flight tickets
Lufthansa
Apr 22
MKE7:41 pmMilwaukee-Mitchell
21h 54m
2 stops
LIS11:35 pmLisbon Humberto Delgado
Apr 29
LIS5:05 amLisbon Humberto Delgado
17h 42m
2 stops
MKE4:47 pmMilwaukee-Mitchell
$621
Lufthansa
Apr 22
MKE7:41 pmMilwaukee-Mitchell
20h 34m
2 stops
LIS10:15 pmLisbon Humberto Delgado
Apr 29
LIS5:05 amLisbon Humberto Delgado
21h 43m
2 stops
MKE8:48 pmMilwaukee-Mitchell
$622
Lufthansa
Apr 22
MKE7:41 pmMilwaukee-Mitchell
21h 04m
2 stops
LIS10:45 pmLisbon Humberto Delgado
Apr 29
LIS10:25 amLisbon Humberto Delgado
13h 30m
1 stop
MKE5:55 pmMilwaukee-Mitchell
$661

momondo Fare Finder

 
Customize your flight search to find flights from Milwaukee to Portugal 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, momondo users made 832,500 searches. Data last updated March 16, 2026.
Use the filters below to find and compare flights from Milwaukee to Portugal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

Mon 4/27

12:33 pm-11:15 am

2 stops16h 42m

Lisbon Humberto Delgado

Mon 5/4

5:00 am-4:22 pm

2 stops17h 22m

$620

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

Wed 4/22

7:41 pm-11:35 pm

2 stops21h 54m

Lisbon Humberto Delgado

Wed 4/29

5:05 am-4:47 pm

2 stops17h 42m

$621

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

Wed 4/22

7:41 pm-10:15 pm

2 stops20h 34m

Lisbon Humberto Delgado

Wed 4/29

5:05 am-8:48 pm

2 stops21h 43m

$622

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

Thu 4/16

7:10 am-8:55 am

2 stops43h 45m

Lisbon Humberto Delgado

Mon 4/27

7:00 am-8:25 pm

2 stops19h 25m

$642

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

Mon 4/27

11:56 am-10:45 am

1 stop16h 49m

Lisbon Humberto Delgado

Mon 5/4

5:00 am-4:22 pm

2 stops17h 22m

$691

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

Wed 4/22

7:10 am-8:00 am

1 stop18h 50m

Lisbon Humberto Delgado

Wed 4/29

12:45 pm-7:16 pm

1 stop12h 31m

$693

MilwaukeePorto

MKE - OPO

MKEOPO

Milwaukee-Mitchell

Sun 5/3

5:48 pm-6:10 pm

2 stops18h 22m

Porto

Tue 5/19

5:00 am-6:03 pm

2 stops19h 03m

$737
Quickest round-trip

MilwaukeePorto

MKE - OPO

MKEOPO

Milwaukee-Mitchell

Tue 8/11

12:07 pm-6:55 am

1 stop12h 48m

Porto

Wed 8/19

2:25 pm-12:11 am

2 stops15h 46m

$752

MilwaukeePorto

MKE - OPO

MKEOPO

Milwaukee-Mitchell

Tue 8/11

12:07 pm-6:55 am

1 stop12h 48m

Porto

Wed 8/19

12:35 pm-12:11 am

2 stops17h 36m

$753

MilwaukeePorto

MKE - OPO

MKEOPO

Milwaukee-Mitchell

Tue 5/5

6:39 am-7:40 am

2 stops19h 01m

Porto

Thu 5/14

8:20 am-6:00 pm

2 stops15h 40m

$765

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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

Can stopping save me money on Milwaukee to Portugal flights?

You could potentially save up to 28% on your flight if you consider stops on a Milwaukee to Portugal flight.

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

13h 00m

Direct flights

None
The fastest flight from Milwaukee to Portugal takes 13h 00m
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?

  • 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 AirlinesPriceFrom $509Free CancellationRating
7.4
9,428 reviews
Search United Airlines flights
American AirlinesPriceFrom $778Free CancellationRating
7.1
11,467 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.

An easier way to manage your Portugal trip

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Find better results for your trip to Portugal

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Popular flights according to clicks in the last 7 days on momondo
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