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Cheap flights from Milwaukee to Portugal from $424

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 11/29. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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.
United Airlines Logo
8:30 am - 10:15 amMKE-LIS
19h 45m2 stops
United Airlines Logo
5:00 am - 3:43 pmLIS-MKE
16h 43m2 stops
$484United Airlines
Find Deal
Thu, Jan 1 - Wed, Jan 14
KLM Logo
1:05 pm - 8:00 amMKE-LIS
12h 55m1 stop
KLM Logo
11:25 am - 10:42 pmLIS-MKE
17h 17m2 stops
$488KLM
Find Deal
Thu, Jan 1 - Wed, Jan 14
United Airlines Logo
3:20 pm - 9:20 amMKE-LIS
36h 00m2 stops
United Airlines Logo
11:20 am - 3:43 pmLIS-MKE
34h 23m2 stops
$489United Airlines
Find Deal
Wed, Jan 7 - Wed, Jan 14
Multiple Airlines Logo
11:29 am - 8:10 amMKE-LIS
14h 41m1 stop
Multiple Airlines Logo
5:00 am - 3:35 pmLIS-MKE
16h 35m2 stops
$493Multiple Airlines
Find Deal
Thu, Feb 5 - Sat, Feb 28
Multiple Airlines Logo
5:39 pm - 8:10 amMKE-LIS
32h 31m1 stop
Multiple Airlines Logo
11:20 am - 3:43 pmLIS-MKE
34h 23m2 stops
$494Multiple Airlines
Find Deal
Wed, Jan 7 - Wed, Jan 14
Delta Logo
2:00 pm - 8:00 amMKE-LIS
12h 00m1 stop
Delta Logo
5:00 am - 8:23 pmLIS-MKE
21h 23m2 stops
$496Delta
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Mon, Feb 2 - Sat, Feb 28
KLM Logo
1:05 pm - 8:00 amMKE-LIS
12h 55m1 stop
KLM Logo
10:00 am - 8:49 pmLIS-MKE
16h 49m1 stop
$497KLM
Find Deal
Thu, Jan 1 - Wed, Jan 14
Delta Logo
6:30 pm - 3:10 pmMKE-LIS
15h 40m2 stops
Delta Logo
5:00 am - 6:09 pmLIS-MKE
19h 09m2 stops
$498Delta
Find Deal
Tue, Mar 17 - Wed, Apr 1
Lufthansa Logo
11:00 am - 9:30 amMKE-OPO
17h 30m1 stop
Lufthansa Logo
12:35 pm - 9:37 pmOPO-MKE
15h 02m1 stop
$933Lufthansa
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Fri, Mar 27 - Tue, Mar 31
Lufthansa Logo
1:25 pm - 11:10 amMKE-OPO
15h 45m2 stops
Lufthansa Logo
12:00 pm - 10:45 pmOPO-MKE
16h 45m2 stops
$935Lufthansa
Find Deal
Mon, Apr 6 - Tue, Apr 21

Delta flights from Milwaukee to Portugal

Our best Delta deals on Milwaukee to Portugal flight tickets
Delta
Feb 2
MKE2:00 pmMilwaukee-Mitchell
12h 00m
1 stop
LIS8:00 amLisbon Humberto Delgado
Feb 28
LIS5:00 amLisbon Humberto Delgado
21h 23m
2 stops
MKE8:23 pmMilwaukee-Mitchell
$496
Find similar
Delta
Dec 12
MKE7:00 amMilwaukee-Mitchell
19h 00m
1 stop
LIS8:00 amLisbon Humberto Delgado
Dec 19
LIS5:30 amLisbon Humberto Delgado
20h 49m
2 stops
MKE8:19 pmMilwaukee-Mitchell
$702
Find similar
Delta
Dec 6
MKE11:41 amMilwaukee-Mitchell
16h 49m
2 stops
OPO10:30 amPorto
Dec 12
OPO6:30 amPorto
20h 51m
2 stops
MKE9:21 pmMilwaukee-Mitchell
$1,210
Find similar

Virgin Atlantic flights from Milwaukee to Portugal

Our best Virgin Atlantic deals on Milwaukee to Portugal flight tickets
Virgin Atlantic
Dec 12
MKE7:00 amMilwaukee-Mitchell
19h 00m
1 stop
LIS8:00 amLisbon Humberto Delgado
Dec 19
LIS10:55 amLisbon Humberto Delgado
16h 31m
1 stop
MKE9:26 pmMilwaukee-Mitchell
$606
Find similar
Virgin Atlantic
Nov 14
MKE11:49 amMilwaukee-Mitchell
14h 11m
1 stop
LIS8:00 amLisbon Humberto Delgado
Nov 21
LIS10:55 amLisbon Humberto Delgado
13h 06m
1 stop
MKE6:01 pmMilwaukee-Mitchell
$830
Find similar

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 November 13, 2025.
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

Thu 1/1

8:30 am-10:15 am

2 stops19h 45m

Lisbon Humberto Delgado

Wed 1/14

5:00 am-3:43 pm

2 stops16h 43m

$484

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

Thu 1/1

1:05 pm-8:00 am

1 stop12h 55m

Lisbon Humberto Delgado

Wed 1/14

11:25 am-10:42 pm

2 stops17h 17m

$488

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

Wed 1/7

3:20 pm-9:20 am

2 stops36h 00m

Lisbon Humberto Delgado

Wed 1/14

11:20 am-3:43 pm

2 stops34h 23m

$489

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

Thu 2/5

11:29 am-8:10 am

1 stop14h 41m

Lisbon Humberto Delgado

Sat 2/28

5:00 am-3:35 pm

2 stops16h 35m

$493

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

Wed 1/7

5:39 pm-8:10 am

1 stop32h 31m

Lisbon Humberto Delgado

Wed 1/14

11:20 am-3:43 pm

2 stops34h 23m

$494

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

Mon 2/2

2:00 pm-8:00 am

1 stop12h 00m

Lisbon Humberto Delgado

Sat 2/28

5:00 am-8:23 pm

2 stops21h 23m

$496

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

Thu 1/1

1:05 pm-8:00 am

1 stop12h 55m

Lisbon Humberto Delgado

Wed 1/14

10:00 am-8:49 pm

1 stop16h 49m

$497

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

Tue 3/17

6:30 pm-3:10 pm

2 stops15h 40m

Lisbon Humberto Delgado

Wed 4/1

5:00 am-6:09 pm

2 stops19h 09m

$498

MilwaukeePorto

MKE - OPO

MKEOPO

Milwaukee-Mitchell

Fri 3/27

11:00 am-9:30 am

1 stop17h 30m

Porto

Tue 3/31

12:35 pm-9:37 pm

1 stop15h 02m

$933

MilwaukeePorto

MKE - OPO

MKEOPO

Milwaukee-Mitchell

Mon 4/6

1:25 pm-11:10 am

2 stops15h 45m

Porto

Tue 4/21

12:00 pm-10:45 pm

2 stops16h 45m

$935

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
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See travel insights to Portugal from

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 month to fly to Portugal?

The cheapest month to fly to Portugal from Milwaukee is in November. Flight prices, which tend to average around $742, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of November, then book flights to Portugal from Milwaukee during February instead. Flights to Portugal in February, while not as cheap as those in November, still average around $830.

What is the cheapest day to depart on your flight to Portugal?

According to our data, Sunday is the cheapest day to fly to Portugal from Milwaukee. The lowest ticket price found for a Sunday departure recently was $911. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Portugal is Saturday, with ticket prices averaging around $1,186.

What is the cheapest time of day to depart on your flight to Portugal?

Our most recent data shows that the best time of day to fly to Portugal is at noon. Flights from Milwaukee to Portugal during this time can be as low as $905. In the afternoon is when there is more demand to fly to Portugal, so prices are often more expensive at around $1,072 per ticket.

How far in advance should I book a flight to Portugal?

You are more likely to see cheaper flights to Portugal from Milwaukee when booking weeks ahead of your departure date. In general, you can expect to find flights to Portugal for around $1,148 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portugal from Milwaukee for as low as $734 on momondo.

Can stopping save me money on Milwaukee to Portugal flights?

You could potentially save up to 38% 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

Direct flights

None
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 $555Free CancellationRating
7.4
9,015 reviews
Search United Airlines flights
KLMPriceFrom $670Free CancellationRating
7.7
1,410 reviews
Search KLM flights
DeltaPriceFrom $699Free CancellationRating
7.9
8,008 reviews
Search Delta flights
American AirlinesPriceFrom $778Free CancellationRating
7.2
11,049 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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