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Cheap flights from Milwaukee to Portugal from $429

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 4/16. 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
4:26 pm - 2:30 pm
MKE
-
LIS
16h 04m
2 stops
Multiple Airlines Logo
6:35 am - 8:06 pm
LIS
-
MKE
19h 31m
2 stops
$505Multiple Airlines
Tue, Apr 28 - Wed, May 6
Delta Logo
10:53 am - 10:55 am
MKE
-
LIS
18h 02m
2 stops
Delta Logo
11:55 am - 11:57 pm
LIS
-
MKE
18h 02m
2 stops
$527Delta
Wed, Apr 22 - Wed, Apr 29
Iberia Logo
2:00 pm - 11:50 am
MKE
-
LIS
15h 50m
2 stops
Iberia Logo
8:25 am - 8:06 pm
LIS
-
MKE
17h 41m
2 stops
$528Iberia
Tue, Apr 14 - Tue, Apr 21
Delta Logo
10:53 am - 10:55 am
MKE
-
LIS
18h 02m
2 stops
Delta Logo
12:45 pm - 7:16 pm
LIS
-
MKE
12h 31m
1 stop
$537Delta
Wed, Apr 22 - Wed, Apr 29
American Airlines Logo
6:00 am - 9:05 am
MKE
-
LIS
21h 05m
1 stop
American Airlines Logo
7:20 am - 6:00 pm
LIS
-
MKE
16h 40m
2 stops
$547American Airlines
Sun, Apr 12 - Sun, Apr 19
American Airlines Logo
1:53 pm - 11:50 am
MKE
-
LIS
15h 57m
2 stops
American Airlines Logo
7:20 am - 6:00 pm
LIS
-
MKE
16h 40m
2 stops
$555American Airlines
Sun, Apr 12 - Sun, Apr 19
Virgin Atlantic Logo
11:56 am - 10:45 am
MKE
-
LIS
16h 49m
1 stop
Virgin Atlantic Logo
12:45 pm - 7:16 pm
LIS
-
MKE
12h 31m
1 stop
$578Virgin Atlantic
Tue, Apr 21 - Wed, Apr 29
Iberia Logo
6:30 pm - 11:45 am
MKE
-
OPO
35h 15m
2 stops
Iberia Logo
8:20 am - 8:06 pm
OPO
-
MKE
17h 46m
2 stops
$725Iberia
Fri, Apr 10 - Sat, Apr 18
United Airlines Logo
5:00 am - 7:00 am
MKE
-
OPO
20h 00m
2 stops
United Airlines Logo
12:15 pm - 12:48 pm
OPO
-
MKE
30h 33m
2 stops
$967United Airlines
Wed, Jun 3 - Tue, Jun 30
United Airlines Logo
6:05 am - 7:00 am
MKE
-
OPO
18h 55m
2 stops
United Airlines Logo
6:00 am - 8:46 pm
OPO
-
MKE
20h 46m
2 stops
$981United Airlines
Wed, Jun 3 - Fri, Jun 26

Delta flights from Milwaukee to Portugal

Our best Delta deals on Milwaukee to Portugal flight tickets
Delta
Apr 22
MKE10:53 amMilwaukee-Mitchell
18h 02m
2 stops
LIS10:55 amLisbon Humberto Delgado
Apr 29
LIS11:55 amLisbon Humberto Delgado
18h 02m
2 stops
MKE11:57 pmMilwaukee-Mitchell
$527
Delta
Apr 22
MKE10:53 amMilwaukee-Mitchell
18h 02m
2 stops
LIS10:55 amLisbon Humberto Delgado
Apr 29
LIS12:45 pmLisbon Humberto Delgado
12h 31m
1 stop
MKE7:16 pmMilwaukee-Mitchell
$537
Delta
Apr 22
MKE10:53 amMilwaukee-Mitchell
18h 02m
2 stops
LIS10:55 amLisbon Humberto Delgado
Apr 29
LIS12:45 pmLisbon Humberto Delgado
12h 31m
1 stop
MKE7:16 pmMilwaukee-Mitchell
$562

Iberia flights from Milwaukee to Portugal

Our best Iberia deals on Milwaukee to Portugal flight tickets
Iberia
Apr 14
MKE2:00 pmMilwaukee-Mitchell
15h 50m
2 stops
LIS11:50 amLisbon Humberto Delgado
Apr 21
LIS8:25 amLisbon Humberto Delgado
17h 41m
2 stops
MKE8:06 pmMilwaukee-Mitchell
$528
Iberia
Apr 22
MKE1:53 pmMilwaukee-Mitchell
24h 12m
2 stops
LIS8:05 pmLisbon Humberto Delgado
Apr 29
LIS6:35 amLisbon Humberto Delgado
19h 31m
2 stops
MKE8:06 pmMilwaukee-Mitchell
$529
Iberia
Apr 15
MKE1:53 pmMilwaukee-Mitchell
27h 32m
2 stops
LIS11:25 pmLisbon Humberto Delgado
Apr 22
LIS6:35 amLisbon Humberto Delgado
16h 36m
2 stops
MKE5:11 pmMilwaukee-Mitchell
$604

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 3, 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 4/28

4:26 pm-2:30 pm

2 stops16h 04m

Lisbon Humberto Delgado

Wed 5/6

6:35 am-8:06 pm

2 stops19h 31m

$505

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

Wed 4/22

10:53 am-10:55 am

2 stops18h 02m

Lisbon Humberto Delgado

Wed 4/29

11:55 am-11:57 pm

2 stops18h 02m

$527

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

Tue 4/14

2:00 pm-11:50 am

2 stops15h 50m

Lisbon Humberto Delgado

Tue 4/21

8:25 am-8:06 pm

2 stops17h 41m

$528

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

Wed 4/22

10:53 am-10:55 am

2 stops18h 02m

Lisbon Humberto Delgado

Wed 4/29

12:45 pm-7:16 pm

1 stop12h 31m

$537

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

Sun 4/12

6:00 am-9:05 am

1 stop21h 05m

Lisbon Humberto Delgado

Sun 4/19

7:20 am-6:00 pm

2 stops16h 40m

$547

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

Sun 4/12

1:53 pm-11:50 am

2 stops15h 57m

Lisbon Humberto Delgado

Sun 4/19

7:20 am-6:00 pm

2 stops16h 40m

$555

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

Tue 4/21

11:56 am-10:45 am

1 stop16h 49m

Lisbon Humberto Delgado

Wed 4/29

12:45 pm-7:16 pm

1 stop12h 31m

$578

MilwaukeePorto

MKE - OPO

MKEOPO

Milwaukee-Mitchell

Fri 4/10

6:30 pm-11:45 am

2 stops35h 15m

Porto

Sat 4/18

8:20 am-8:06 pm

2 stops17h 46m

$725

MilwaukeePorto

MKE - OPO

MKEOPO

Milwaukee-Mitchell

Wed 6/3

5:00 am-7:00 am

2 stops20h 00m

Porto

Tue 6/30

12:15 pm-12:48 pm

2 stops30h 33m

$967

MilwaukeePorto

MKE - OPO

MKEOPO

Milwaukee-Mitchell

Wed 6/3

6:05 am-7:00 am

2 stops18h 55m

Porto

Fri 6/26

6:00 am-8:46 pm

2 stops20h 46m

$981

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

14h 30m

Direct flights

None
The fastest flight from Milwaukee to Portugal takes 14h 30m
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
9,377 reviews
Search United Airlines flights
American AirlinesPriceFrom $619Free CancellationRating
7.1
11,375 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

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