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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 11/24. 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.
Multiple Airlines Logo
3:49 pm - 8:55 amMKE-LIS
35h 06m2 stops
Multiple Airlines Logo
5:00 am - 9:47 pmLIS-MKE
22h 47m2 stops
$524Multiple Airlines
Find Deal
vie., nov. 28 - sáb., dic. 6
United Airlines Logo
3:50 pm - 10:15 amMKE-LIS
12h 25m2 stops
United Airlines Logo
10:55 am - 3:08 pmLIS-MKE
34h 13m2 stops
$533United Airlines
Find Deal
jue., dic. 4 - jue., dic. 11
Delta Logo
7:00 am - 8:55 amMKE-LIS
19h 55m1 stop
Delta Logo
11:25 am - 11:55 pmLIS-MKE
18h 30m2 stops
$590Delta
Find Deal
dom., nov. 16 - dom., nov. 23
Delta Logo
11:49 am - 8:00 amMKE-LIS
14h 11m1 stop
Delta Logo
10:00 am - 8:07 pmLIS-MKE
16h 07m1 stop
$599Delta
Find Deal
dom., nov. 16 - dom., nov. 23
Lufthansa Logo
3:15 pm - 11:30 amMKE-LIS
15h 15m2 stops
Lufthansa Logo
5:00 am - 9:50 pmLIS-MKE
21h 50m2 stops
$1,009Lufthansa
Find Deal
lun., mar. 9 - vie., mar. 13
American Airlines Logo
11:55 am - 9:05 amMKE-LIS
16h 10m1 stop
American Airlines Logo
6:30 am - 9:16 pmLIS-MKE
19h 46m2 stops
$1,029American Airlines
Find Deal
lun., mar. 9 - vie., mar. 13
American Airlines Logo
11:55 am - 9:05 amMKE-LIS
16h 10m1 stop
American Airlines Logo
11:05 am - 9:49 amLIS-MKE
27h 44m1 stop
$1,040American Airlines
Find Deal
lun., mar. 9 - vie., mar. 13
Lufthansa Logo
5:45 pm - 8:10 amMKE-LIS
33h 25m1 stop
Lufthansa Logo
5:00 am - 4:32 pmLIS-MKE
17h 32m2 stops
$1,180Lufthansa
Find Deal
sáb., nov. 1 - vie., nov. 7
KLM Logo
7:00 am - 9:00 amMKE-LIS
21h 00m1 stop
KLM Logo
10:00 am - 8:07 pmLIS-MKE
16h 07m1 stop
$1,225KLM
Find Deal
sáb., nov. 1 - vie., nov. 7
KLM Logo
10:35 am - 8:55 amMKE-LIS
16h 20m1 stop
KLM Logo
5:00 am - 5:15 pmLIS-MKE
18h 15m2 stops
$1,363KLM
Find Deal
jue., dic. 25 - dom., ene. 4

United Airlines flights from Milwaukee to Portugal

Our best United Airlines deals on Milwaukee to Portugal flight tickets
United Airlines
Dec 4
MKE3:50 pmMilwaukee-Mitchell
12h 25m
2 stops
LIS10:15 amLisbon Humberto Delgado
Dec 11
LIS10:55 amLisbon Humberto Delgado
34h 13m
2 stops
MKE3:08 pmMilwaukee-Mitchell
$533
Find similar
United Airlines
Nov 16
MKE2:45 pmMilwaukee-Mitchell
13h 30m
2 stops
LIS10:15 amLisbon Humberto Delgado
Nov 23
LIS5:00 amLisbon Humberto Delgado
18h 17m
2 stops
MKE5:17 pmMilwaukee-Mitchell
$542
Find similar
United Airlines
Dec 4
MKE12:04 pmMilwaukee-Mitchell
16h 11m
2 stops
LIS10:15 amLisbon Humberto Delgado
Dec 11
LIS10:15 amLisbon Humberto Delgado
12h 57m
1 stop
MKE5:12 pmMilwaukee-Mitchell
$556
Find similar

Delta flights from Milwaukee to Portugal

Our best Delta deals on Milwaukee to Portugal flight tickets
Delta
Nov 16
MKE7:00 amMilwaukee-Mitchell
19h 55m
1 stop
LIS8:55 amLisbon Humberto Delgado
Nov 23
LIS11:25 amLisbon Humberto Delgado
18h 30m
2 stops
MKE11:55 pmMilwaukee-Mitchell
$590
Find similar
Delta
Nov 16
MKE11:49 amMilwaukee-Mitchell
14h 11m
1 stop
LIS8:00 amLisbon Humberto Delgado
Nov 23
LIS10:00 amLisbon Humberto Delgado
16h 07m
1 stop
MKE8:07 pmMilwaukee-Mitchell
$599
Find similar
Delta
Oct 26
MKE7:00 amMilwaukee-Mitchell
20h 55m
1 stop
LIS8:55 amLisbon Humberto Delgado
Nov 2
LIS5:00 amLisbon Humberto Delgado
17h 18m
2 stops
MKE5:18 pmMilwaukee-Mitchell
$864
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 octubre 20, 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

vie. 11/28

3:49 pm-8:55 am

2 stops35h 06m

Lisbon Humberto Delgado

sáb. 12/6

5:00 am-9:47 pm

2 stops22h 47m

$524

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

jue. 12/4

3:50 pm-10:15 am

2 stops12h 25m

Lisbon Humberto Delgado

jue. 12/11

10:55 am-3:08 pm

2 stops34h 13m

$533

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

dom. 11/16

7:00 am-8:55 am

1 stop19h 55m

Lisbon Humberto Delgado

dom. 11/23

11:25 am-11:55 pm

2 stops18h 30m

$590

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

dom. 11/16

11:49 am-8:00 am

1 stop14h 11m

Lisbon Humberto Delgado

dom. 11/23

10:00 am-8:07 pm

1 stop16h 07m

$599

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

lun. 3/9

3:15 pm-11:30 am

2 stops15h 15m

Lisbon Humberto Delgado

vie. 3/13

5:00 am-9:50 pm

2 stops21h 50m

$1,009

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

lun. 3/9

11:55 am-9:05 am

1 stop16h 10m

Lisbon Humberto Delgado

vie. 3/13

6:30 am-9:16 pm

2 stops19h 46m

$1,029

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

lun. 3/9

11:55 am-9:05 am

1 stop16h 10m

Lisbon Humberto Delgado

vie. 3/13

11:05 am-9:49 am

1 stop27h 44m

$1,040

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

sáb. 11/1

5:45 pm-8:10 am

1 stop33h 25m

Lisbon Humberto Delgado

vie. 11/7

5:00 am-4:32 pm

2 stops17h 32m

$1,180

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

sáb. 11/1

7:00 am-9:00 am

1 stop21h 00m

Lisbon Humberto Delgado

vie. 11/7

10:00 am-8:07 pm

1 stop16h 07m

$1,225

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

jue. 12/25

10:35 am-8:55 am

1 stop16h 20m

Lisbon Humberto Delgado

dom. 1/4

5:00 am-5:15 pm

2 stops18h 15m

$1,363

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 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 $1,150 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
8,993 reviews
Search United Airlines flights
KLMPriceFrom $670Free CancellationRating
7.7
1,404 reviews
Search KLM flights
DeltaPriceFrom $699Free CancellationRating
7.9
7,977 reviews
Search Delta flights
American AirlinesPriceFrom $778Free CancellationRating
7.2
11,026 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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mié. 11/19
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