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Cheap flights from Milwaukee to Portugal from $415

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 5/26. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
5:10 am - 9:20 am
MKE
-
LIS
22h 10m
2 stops
United Airlines Logo
5:05 am - 10:20 pm
LIS
-
MKE
23h 15m
2 stops
$499United Airlines
Tue, Apr 21 - Wed, Apr 29
United Airlines Logo
5:10 am - 9:20 am
MKE
-
LIS
22h 10m
2 stops
United Airlines Logo
5:05 am - 6:47 pm
LIS
-
MKE
19h 42m
2 stops
$500United Airlines
Tue, Apr 21 - Tue, Apr 28
KLM Logo
7:00 am - 9:00 am
MKE
-
LIS
21h 00m
1 stop
KLM Logo
9:20 am - 8:40 pm
LIS
-
MKE
17h 20m
2 stops
$542KLM
Tue, Mar 17 - Tue, Mar 31
Lufthansa Logo
7:22 pm - 10:15 pm
MKE
-
LIS
20h 53m
2 stops
Lufthansa Logo
5:05 am - 5:55 pm
LIS
-
MKE
18h 50m
2 stops
$543Lufthansa
Wed, Apr 22 - Wed, Apr 29
Multiple Airlines Logo
6:33 pm - 3:10 pm
MKE
-
LIS
15h 37m
2 stops
Multiple Airlines Logo
9:20 am - 8:40 pm
LIS
-
MKE
17h 20m
2 stops
$546Multiple Airlines
Tue, Mar 17 - Tue, Mar 31
British Airways Logo
4:26 pm - 3:40 pm
MKE
-
LIS
17h 14m
2 stops
British Airways Logo
6:45 pm - 8:06 pm
LIS
-
MKE
31h 21m
2 stops
$576British Airways
Wed, Apr 8 - Mon, Apr 13
Delta Logo
5:48 pm - 2:55 pm
MKE
-
LIS
15h 07m
2 stops
Delta Logo
11:55 am - 11:56 pm
LIS
-
MKE
18h 01m
2 stops
$582Delta
Mon, May 4 - Tue, May 12
British Airways Logo
6:30 pm - 5:55 pm
MKE
-
LIS
17h 25m
2 stops
British Airways Logo
11:00 am - 11:40 pm
LIS
-
MKE
18h 40m
2 stops
$593British Airways
Wed, Apr 22 - Wed, Apr 29
Lufthansa Logo
5:51 pm - 9:30 am
MKE
-
OPO
10h 39m
1 stop
Lufthansa Logo
12:35 pm - 11:27 pm
OPO
-
MKE
16h 52m
1 stop
$947Lufthansa
Wed, Mar 25 - Tue, Sep 29
Multiple Airlines Logo
5:09 pm - 6:45 am
MKE
-
PDL
32h 36m
2 stops
Multiple Airlines Logo
6:05 pm - 3:39 pm
PDL
-
MKE
26h 34m
1 stop
$1,186Multiple Airlines
Sat, May 16 - Thu, May 21

United Airlines flights from Milwaukee to Portugal

Our best United Airlines deals on Milwaukee to Portugal flight tickets
United Airlines
Apr 21
MKE5:10 amMilwaukee-Mitchell
22h 10m
2 stops
LIS9:20 amLisbon Humberto Delgado
Apr 29
LIS5:05 amLisbon Humberto Delgado
23h 15m
2 stops
MKE10:20 pmMilwaukee-Mitchell
$499
United Airlines
Apr 21
MKE5:10 amMilwaukee-Mitchell
22h 10m
2 stops
LIS9:20 amLisbon Humberto Delgado
Apr 28
LIS5:05 amLisbon Humberto Delgado
19h 42m
2 stops
MKE6:47 pmMilwaukee-Mitchell
$500
United Airlines
Feb 22
MKE8:30 amMilwaukee-Mitchell
19h 45m
2 stops
LIS10:15 amLisbon Humberto Delgado
Mar 10
LIS5:00 amLisbon Humberto Delgado
18h 43m
2 stops
MKE6:43 pmMilwaukee-Mitchell
$536

KLM flights from Milwaukee to Portugal

Our best KLM deals on Milwaukee to Portugal flight tickets
KLM
Feb 22
MKE7:00 amMilwaukee-Mitchell
19h 55m
1 stop
LIS8:55 amLisbon Humberto Delgado
Mar 10
LIS5:00 amLisbon Humberto Delgado
17h 53m
2 stops
MKE5:53 pmMilwaukee-Mitchell
$533
KLM
Mar 17
MKE7:00 amMilwaukee-Mitchell
21h 00m
1 stop
LIS9:00 amLisbon Humberto Delgado
Mar 31
LIS9:20 amLisbon Humberto Delgado
17h 20m
2 stops
MKE8:40 pmMilwaukee-Mitchell
$542
KLM
Feb 23
MKE7:00 amMilwaukee-Mitchell
20h 00m
1 stop
LIS9:00 amLisbon Humberto Delgado
Mar 2
LIS11:25 amLisbon Humberto Delgado
17h 14m
2 stops
MKE10:39 pmMilwaukee-Mitchell
$592

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 February 19, 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

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

Tue 4/21

5:10 am-9:20 am

2 stops22h 10m

Lisbon Humberto Delgado

Wed 4/29

5:05 am-10:20 pm

2 stops23h 15m

$499

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

Tue 4/21

5:10 am-9:20 am

2 stops22h 10m

Lisbon Humberto Delgado

Tue 4/28

5:05 am-6:47 pm

2 stops19h 42m

$500

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

Tue 3/17

7:00 am-9:00 am

1 stop21h 00m

Lisbon Humberto Delgado

Tue 3/31

9:20 am-8:40 pm

2 stops17h 20m

$542

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

Wed 4/22

7:22 pm-10:15 pm

2 stops20h 53m

Lisbon Humberto Delgado

Wed 4/29

5:05 am-5:55 pm

2 stops18h 50m

$543

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

Tue 3/17

6:33 pm-3:10 pm

2 stops15h 37m

Lisbon Humberto Delgado

Tue 3/31

9:20 am-8:40 pm

2 stops17h 20m

$546

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

Wed 4/8

4:26 pm-3:40 pm

2 stops17h 14m

Lisbon Humberto Delgado

Mon 4/13

6:45 pm-8:06 pm

2 stops31h 21m

$576

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

Mon 5/4

5:48 pm-2:55 pm

2 stops15h 07m

Lisbon Humberto Delgado

Tue 5/12

11:55 am-11:56 pm

2 stops18h 01m

$582

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

Wed 4/22

6:30 pm-5:55 pm

2 stops17h 25m

Lisbon Humberto Delgado

Wed 4/29

11:00 am-11:40 pm

2 stops18h 40m

$593

MilwaukeePorto

MKE - OPO

MKEOPO

Milwaukee-Mitchell

Wed 3/25

5:51 pm-9:30 am

1 stop10h 39m

Porto

Tue 9/29

12:35 pm-11:27 pm

1 stop16h 52m

$947

MilwaukeePonta Delgada

MKE - PDL

MKEPDL

Milwaukee-Mitchell

Sat 5/16

5:09 pm-6:45 am

2 stops32h 36m

Ponta Delgada Nordela

Thu 5/21

6:05 pm-3:39 pm

1 stop26h 34m

$1,186

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 35% 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

16h 00m

Direct flights

None
The fastest flight from Milwaukee to Portugal takes 16h 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
9,321 reviews
Search United Airlines flights
American AirlinesPriceFrom $703Free CancellationRating
7.2
11,313 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.

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Find better results for your trip to Portugal

Popular cities in Portugal

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