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Cheap flights from Milwaukee to Portugal from $395

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 8/9. 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.
Delta Logo
7:10 am - 8:00 am
MKE
-
LIS
18h 50m
1 stop
Delta Logo
11:55 am - 11:53 pm
LIS
-
MKE
17h 58m
2 stops
$716Delta
Mon, May 4 - Sun, May 10
Delta Logo
6:00 am - 10:45 am
MKE
-
LIS
22h 45m
2 stops
Delta Logo
5:00 am - 4:06 pm
LIS
-
MKE
17h 06m
2 stops
$720Delta
Sun, May 3 - Sun, May 10
KLM Logo
11:56 am - 10:45 am
MKE
-
LIS
16h 49m
1 stop
KLM Logo
5:00 am - 4:24 pm
LIS
-
MKE
17h 24m
2 stops
$759KLM
Wed, Apr 22 - Wed, Apr 29
KLM Logo
11:56 am - 10:45 am
MKE
-
LIS
16h 49m
1 stop
KLM Logo
10:00 am - 8:25 pm
LIS
-
MKE
16h 25m
1 stop
$770KLM
Wed, Apr 22 - Wed, Apr 29
Multiple Airlines Logo
11:56 am - 8:50 am
MKE
-
LIS
14h 54m
2 stops
Multiple Airlines Logo
5:00 am - 4:22 pm
LIS
-
MKE
17h 22m
2 stops
$813Multiple Airlines
Tue, Apr 14 - Sun, Apr 19
Lufthansa Logo
12:13 pm - 11:25 pm
MKE
-
OPO
29h 12m
2 stops
Lufthansa Logo
6:00 am - 10:33 pm
OPO
-
MKE
22h 33m
2 stops
$905Lufthansa
Tue, Apr 14 - Fri, May 1
United Airlines Logo
7:41 pm - 11:15 am
MKE
-
OPO
33h 34m
2 stops
United Airlines Logo
6:00 am - 5:32 pm
OPO
-
MKE
17h 32m
2 stops
$922United Airlines
Sat, Apr 18 - Fri, May 1
United Airlines Logo
7:41 pm - 11:15 am
MKE
-
OPO
33h 34m
2 stops
United Airlines Logo
12:10 pm - 4:47 pm
OPO
-
MKE
34h 37m
2 stops
$942United Airlines
Sat, Apr 18 - Mon, Apr 27
Lufthansa Logo
7:41 pm - 10:45 pm
MKE
-
OPO
21h 04m
2 stops
Lufthansa Logo
6:00 am - 10:30 pm
OPO
-
MKE
22h 30m
2 stops
$1,017Lufthansa
Sat, Apr 18 - Sat, May 2
Multiple Airlines Logo
9:36 am - 6:20 am
MKE
-
PDL
15h 44m
1 stop
Multiple Airlines Logo
11:45 am - 10:35 am
PDL
-
MKE
27h 50m
2 stops
$1,166Multiple Airlines
Sun, Aug 30 - Tue, Sep 8

KLM flights from Milwaukee to Portugal

Our best KLM deals on Milwaukee to Portugal flight tickets
KLM
Apr 12
MKE7:00 amMilwaukee-Mitchell
19h 00m
1 stop
LIS8:00 amLisbon Humberto Delgado
Apr 28
LIS11:55 amLisbon Humberto Delgado
18h 02m
2 stops
MKE11:57 pmMilwaukee-Mitchell
$752
KLM
Apr 22
MKE11:56 amMilwaukee-Mitchell
16h 49m
1 stop
LIS10:45 amLisbon Humberto Delgado
Apr 29
LIS5:00 amLisbon Humberto Delgado
17h 24m
2 stops
MKE4:24 pmMilwaukee-Mitchell
$759
KLM
Apr 12
MKE7:00 amMilwaukee-Mitchell
19h 00m
1 stop
LIS8:00 amLisbon Humberto Delgado
Apr 28
LIS10:00 amLisbon Humberto Delgado
16h 25m
1 stop
MKE8:25 pmMilwaukee-Mitchell
$763

Lufthansa flights from Milwaukee to Portugal

Our best Lufthansa deals on Milwaukee to Portugal flight tickets
Lufthansa
Apr 15
MKE7:41 pmMilwaukee-Mitchell
20h 34m
2 stops
LIS10:15 pmLisbon Humberto Delgado
Apr 19
LIS5:05 amLisbon Humberto Delgado
23h 25m
2 stops
MKE10:30 pmMilwaukee-Mitchell
$832
Lufthansa
May 3
MKE1:46 pmMilwaukee-Mitchell
26h 59m
2 stops
LIS10:45 pmLisbon Humberto Delgado
May 7
LIS5:05 amLisbon Humberto Delgado
21h 43m
2 stops
MKE8:48 pmMilwaukee-Mitchell
$1,036
Lufthansa
Apr 19
MKE7:41 pmMilwaukee-Mitchell
20h 34m
2 stops
LIS10:15 pmLisbon Humberto Delgado
Apr 23
LIS5:05 amLisbon Humberto Delgado
21h 43m
2 stops
MKE8:48 pmMilwaukee-Mitchell
$1,048

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 April 4, 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 5/4

7:10 am-8:00 am

1 stop18h 50m

Lisbon Humberto Delgado

Sun 5/10

11:55 am-11:53 pm

2 stops17h 58m

$716

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

Sun 5/3

6:00 am-10:45 am

2 stops22h 45m

Lisbon Humberto Delgado

Sun 5/10

5:00 am-4:06 pm

2 stops17h 06m

$720

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

Wed 4/22

11:56 am-10:45 am

1 stop16h 49m

Lisbon Humberto Delgado

Wed 4/29

5:00 am-4:24 pm

2 stops17h 24m

$759

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

Wed 4/22

11:56 am-10:45 am

1 stop16h 49m

Lisbon Humberto Delgado

Wed 4/29

10:00 am-8:25 pm

1 stop16h 25m

$770
Quickest round-trip

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

Tue 4/14

11:56 am-8:50 am

2 stops14h 54m

Lisbon Humberto Delgado

Sun 4/19

5:00 am-4:22 pm

2 stops17h 22m

$813

MilwaukeePorto

MKE - OPO

MKEOPO

Milwaukee-Mitchell

Tue 4/14

12:13 pm-11:25 pm

2 stops29h 12m

Porto

Fri 5/1

6:00 am-10:33 pm

2 stops22h 33m

$905

MilwaukeePorto

MKE - OPO

MKEOPO

Milwaukee-Mitchell

Sat 4/18

7:41 pm-11:15 am

2 stops33h 34m

Porto

Fri 5/1

6:00 am-5:32 pm

2 stops17h 32m

$922

MilwaukeePorto

MKE - OPO

MKEOPO

Milwaukee-Mitchell

Sat 4/18

7:41 pm-11:15 am

2 stops33h 34m

Porto

Mon 4/27

12:10 pm-4:47 pm

2 stops34h 37m

$942

MilwaukeePorto

MKE - OPO

MKEOPO

Milwaukee-Mitchell

Sat 4/18

7:41 pm-10:45 pm

2 stops21h 04m

Porto

Sat 5/2

6:00 am-10:30 pm

2 stops22h 30m

$1,017

MilwaukeePonta Delgada

MKE - PDL

MKEPDL

Milwaukee-Mitchell

Sun 8/30

9:36 am-6:20 am

1 stop15h 44m

Ponta Delgada Nordela

Tue 9/8

11:45 am-10:35 am

2 stops27h 50m

$1,166

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

12h 26m

Direct flights

None
The fastest flight from Milwaukee to Portugal takes 12h 26m
There are no direct flights from Milwaukee to Portugal. There are no popular flight routes from Milwaukee to Portugal.
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Frequently asked questions about flying from Milwaukee to Portugal

  • 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
9,541 reviews
Search United Airlines flights
American AirlinesPriceFrom $778Free CancellationRating
7.1
11,555 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
Flights to Lisbonfrom $428
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Flights to Ponta Delgadafrom $595
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Flights to Pico Islandfrom $750
Flights to Hortafrom $668
Flights to Porto Santofrom $897
Flights to Velasfrom $775