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Cheap flights from Milwaukee to Portugal from $398

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 11/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap round-trip flights

American Airlines Logo
4:45 pm - 9:05 amMKE-LIS
11h 20m1 stop
American Airlines Logo
6:30 am - 6:30 pmLIS-MKE
18h 00m2 stops
$591American Airlines
Find Deal
Tue, Oct 28 - Tue, Nov 4
American Airlines Logo
10:49 am - 9:05 amMKE-LIS
17h 16m2 stops
American Airlines Logo
6:30 am - 5:56 pmLIS-MKE
17h 26m2 stops
$596American Airlines
Find Deal
Tue, Oct 28 - Tue, Nov 4
Air Canada Logo
10:45 am - 9:20 amMKE-LIS
16h 35m2 stops
Air Canada Logo
11:20 am - 10:09 pmLIS-MKE
16h 49m2 stops
$611Air Canada
Find Deal
Wed, Feb 11 - Tue, Feb 24
Air Canada Logo
8:29 am - 9:20 amMKE-LIS
18h 51m2 stops
Air Canada Logo
11:20 am - 10:09 pmLIS-MKE
16h 49m2 stops
$618Air Canada
Find Deal
Wed, Feb 11 - Wed, Feb 25
Air Canada Logo
8:29 am - 7:55 amMKE-LIS
17h 26m2 stops
Air Canada Logo
11:20 am - 10:09 pmLIS-MKE
16h 49m2 stops
$652Air Canada
Find Deal
Thu, Feb 12 - Tue, Feb 24
British Airways Logo
8:16 pm - 11:10 pmMKE-LIS
20h 54m2 stops
British Airways Logo
6:35 pm - 8:25 pmLIS-MKE
30h 50m2 stops
$705British Airways
Find Deal
Wed, Oct 15 - Mon, Oct 27
Delta Logo
7:00 am - 8:00 amMKE-LIS
19h 00m1 stop
Delta Logo
11:15 am - 7:16 pmLIS-MKE
13h 01m1 stop
$849Delta
Find Deal
Wed, Oct 15 - Mon, Oct 27
Delta Logo
7:00 am - 8:00 amMKE-LIS
19h 00m1 stop
Delta Logo
5:30 am - 6:18 pmLIS-MKE
17h 48m2 stops
$860Delta
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Wed, Oct 15 - Mon, Oct 27
United Airlines Logo
5:45 pm - 9:20 amMKE-LIS
33h 35m2 stops
United Airlines Logo
11:25 am - 10:13 amLIS-MKE
28h 48m2 stops
$871United Airlines
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Sat, Sep 6 - Tue, Sep 16
United Airlines Logo
12:05 pm - 9:20 amMKE-LIS
39h 15m2 stops
United Airlines Logo
12:55 pm - 10:13 amLIS-MKE
27h 18m2 stops
$877United Airlines
Find Deal
Sat, Sep 6 - Tue, Sep 16

American Airlines flights from Milwaukee to Portugal

Our best American Airlines deals on Milwaukee to Portugal flight tickets
American Airlines
Oct 28
MKE4:45 pmMilwaukee-Mitchell
11h 20m
1 stop
LIS9:05 amLisbon Humberto Delgado
Nov 4
LIS6:30 amLisbon Humberto Delgado
18h 00m
2 stops
MKE6:30 pmMilwaukee-Mitchell
$591
Find similar
American Airlines
Oct 28
MKE10:49 amMilwaukee-Mitchell
17h 16m
2 stops
LIS9:05 amLisbon Humberto Delgado
Nov 4
LIS6:30 amLisbon Humberto Delgado
17h 26m
2 stops
MKE5:56 pmMilwaukee-Mitchell
$596
Find similar
American Airlines
Dec 15
MKE5:16 pmMilwaukee-Mitchell
9h 49m
1 stop
LIS9:05 amLisbon Humberto Delgado
Dec 21
LIS11:05 amLisbon Humberto Delgado
28h 39m
1 stop
MKE9:44 amMilwaukee-Mitchell
$810
Find similar

Air Canada flights from Milwaukee to Portugal

Our best Air Canada deals on Milwaukee to Portugal flight tickets
Air Canada
Feb 11
MKE10:45 amMilwaukee-Mitchell
16h 35m
2 stops
LIS9:20 amLisbon Humberto Delgado
Feb 24
LIS11:20 amLisbon Humberto Delgado
16h 49m
2 stops
MKE10:09 pmMilwaukee-Mitchell
$611
Find similar
Air Canada
Feb 11
MKE8:29 amMilwaukee-Mitchell
18h 51m
2 stops
LIS9:20 amLisbon Humberto Delgado
Feb 25
LIS11:20 amLisbon Humberto Delgado
16h 49m
2 stops
MKE10:09 pmMilwaukee-Mitchell
$618
Find similar
Air Canada
Feb 12
MKE8:29 amMilwaukee-Mitchell
17h 26m
2 stops
LIS7:55 amLisbon Humberto Delgado
Feb 24
LIS11:20 amLisbon Humberto Delgado
16h 49m
2 stops
MKE10:09 pmMilwaukee-Mitchell
$652
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 August 18, 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

Tue 10/28

4:45 pm-9:05 am

1 stop11h 20m

Lisbon Humberto Delgado

Tue 11/4

6:30 am-6:30 pm

2 stops18h 00m

$591

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

Tue 10/28

10:49 am-9:05 am

2 stops17h 16m

Lisbon Humberto Delgado

Tue 11/4

6:30 am-5:56 pm

2 stops17h 26m

$596

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

Wed 2/11

10:45 am-9:20 am

2 stops16h 35m

Lisbon Humberto Delgado

Tue 2/24

11:20 am-10:09 pm

2 stops16h 49m

$611

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

Wed 2/11

8:29 am-9:20 am

2 stops18h 51m

Lisbon Humberto Delgado

Wed 2/25

11:20 am-10:09 pm

2 stops16h 49m

$618

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

Thu 2/12

8:29 am-7:55 am

2 stops17h 26m

Lisbon Humberto Delgado

Tue 2/24

11:20 am-10:09 pm

2 stops16h 49m

$652

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

Wed 10/15

8:16 pm-11:10 pm

2 stops20h 54m

Lisbon Humberto Delgado

Mon 10/27

6:35 pm-8:25 pm

2 stops30h 50m

$705

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

Wed 10/15

7:00 am-8:00 am

1 stop19h 00m

Lisbon Humberto Delgado

Mon 10/27

11:15 am-7:16 pm

1 stop13h 01m

$849

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

Wed 10/15

7:00 am-8:00 am

1 stop19h 00m

Lisbon Humberto Delgado

Mon 10/27

5:30 am-6:18 pm

2 stops17h 48m

$860

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

Sat 9/6

5:45 pm-9:20 am

2 stops33h 35m

Lisbon Humberto Delgado

Tue 9/16

11:25 am-10:13 am

2 stops28h 48m

$871

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

Sat 9/6

12:05 pm-9:20 am

2 stops39h 15m

Lisbon Humberto Delgado

Tue 9/16

12:55 pm-10:13 am

2 stops27h 18m

$877

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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 $659, 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 $786.

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 $1,179 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 $639 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

Best Price Found

$398

Fastest flight time

9h 49m

Direct flights

None

Airports in Portugal

2 airports
The best one-way flight to Portugal from Milwaukee in the past 72 hours is $398. The best round-trip flight deal from Milwaukee to Portugal found on momondo in the last 72 hours is $591.
The fastest flight from Milwaukee to Portugal takes 9h 49m
There are no direct flights from Milwaukee to Portugal. Popular non-direct routes for this connection are Milwaukee-Mitchell Airport - Porto Airport and Milwaukee-Mitchell Airport - Lisbon Humberto Delgado Airport.
There are 2 airports near Portugal: Lisbon Humberto Delgado (LIS), Porto (OPO)
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  • 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
8,925 reviews
Search United Airlines flights
KLMPriceFrom $604Free CancellationRating
7.8
1,385 reviews
Search KLM flights
DeltaPriceFrom $699Free CancellationRating
8.0
7,981 reviews
Search Delta flights
American AirlinesPriceFrom $703Free CancellationRating
7.2
10,000 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 $356
Flights to Portofrom $340
Flights to Funchalfrom $383
Flights to Farofrom $377
Flights to Ponta Delgadafrom $450
Flights to Lajesfrom $522
Flights to Hortafrom $589
Flights to Pico Islandfrom $559
Flights to Porto Santofrom $580
Flights to Velasfrom $591