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Cheap flights from Milwaukee to Portugal from $453

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Milwaukee to Portugal departing on 2/15. 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
12:26 pm - 2:50 pm
MKE
-
LIS
20h 24m2 stops
Multiple Airlines Logo
6:30 am - 5:54 pm
LIS
-
MKE
17h 24m2 stops
$453Multiple Airlines
dom., feb. 15 - jue., feb. 26
British Airways Logo
11:21 am - 3:40 pm
MKE
-
LIS
22h 19m2 stops
British Airways Logo
7:20 am - 6:25 pm
LIS
-
MKE
17h 05m2 stops
$458British Airways
mié., abr. 22 - mié., abr. 29
Iberia Logo
4:50 pm - 8:00 pm
MKE
-
OPO
21h 10m2 stops
Iberia Logo
4:40 pm - 6:25 pm
OPO
-
MKE
31h 45m2 stops
$472Iberia
mar., abr. 7 - mié., abr. 15
Delta Logo
11:02 am - 3:10 pm
MKE
-
LIS
22h 08m2 stops
Delta Logo
10:00 am - 8:36 pm
LIS
-
MKE
16h 36m1 stop
$476Delta
dom., feb. 15 - jue., feb. 26
Delta Logo
9:35 am - 3:25 pm
MKE
-
OPO
23h 50m2 stops
Delta Logo
5:00 am - 5:58 pm
OPO
-
MKE
18h 58m2 stops
$480Delta
mié., abr. 8 - jue., abr. 16
Iberia Logo
12:26 pm - 4:00 pm
MKE
-
OPO
21h 34m2 stops
Iberia Logo
8:20 am - 5:54 pm
OPO
-
MKE
15h 34m2 stops
$486Iberia
vie., feb. 20 - vie., feb. 27
Delta Logo
12:27 pm - 3:25 pm
MKE
-
OPO
20h 58m2 stops
Delta Logo
4:20 pm - 5:58 pm
OPO
-
MKE
31h 38m2 stops
$492Delta
mar., abr. 7 - lun., abr. 13
United Airlines Logo
3:30 pm - 10:15 am
MKE
-
LIS
12h 45m2 stops
United Airlines Logo
5:00 am - 9:44 pm
LIS
-
MKE
22h 44m2 stops
$500United Airlines
sáb., feb. 21 - sáb., feb. 28
KLM Logo
7:00 am - 9:00 am
MKE
-
LIS
21h 00m1 stop
KLM Logo
10:00 am - 8:06 pm
LIS
-
MKE
15h 06m1 stop
$532KLM
lun., mar. 9 - mié., mar. 18
United Airlines Logo
1:35 pm - 9:45 am
MKE
-
OPO
14h 10m2 stops
United Airlines Logo
6:00 am - 6:57 pm
OPO
-
MKE
18h 57m2 stops
$542United Airlines
vie., abr. 10 - vie., abr. 17

Scandinavian Airlines flights from Milwaukee to Portugal

Our best Scandinavian Airlines deals on Milwaukee to Portugal flight tickets
Scandinavian Airlines
Mar 10
MKE9:35 amMilwaukee-Mitchell
20h 00m
2 stops
LIS10:35 amLisbon Humberto Delgado
Mar 17
LIS10:00 amLisbon Humberto Delgado
15h 06m
1 stop
MKE8:06 pmMilwaukee-Mitchell
$589
Scandinavian Airlines
Mar 10
MKE7:00 amMilwaukee-Mitchell
21h 00m
1 stop
LIS9:00 amLisbon Humberto Delgado
Mar 17
LIS10:00 amLisbon Humberto Delgado
15h 06m
1 stop
MKE8:06 pmMilwaukee-Mitchell
$632

British Airways flights from Milwaukee to Portugal

Our best British Airways deals on Milwaukee to Portugal flight tickets
British Airways
Apr 22
MKE11:21 amMilwaukee-Mitchell
22h 19m
2 stops
LIS3:40 pmLisbon Humberto Delgado
Apr 29
LIS7:20 amLisbon Humberto Delgado
17h 05m
2 stops
MKE6:25 pmMilwaukee-Mitchell
$458
British Airways
Jan 20
MKE1:04 pmMilwaukee-Mitchell
19h 41m
2 stops
LIS2:45 pmLisbon Humberto Delgado
Jan 25
LIS6:40 pmLisbon Humberto Delgado
33h 22m
2 stops
MKE10:02 pmMilwaukee-Mitchell
$508
British Airways
Jan 23
MKE6:58 pmMilwaukee-Mitchell
21h 27m
2 stops
LIS10:25 pmLisbon Humberto Delgado
Jan 27
LIS7:30 amLisbon Humberto Delgado
20h 35m
2 stops
MKE10:05 pmMilwaukee-Mitchell
$525

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 enero 8, 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

dom. 2/15

12:26 pm-2:50 pm

2 stops20h 24m

Lisbon Humberto Delgado

jue. 2/26

6:30 am-5:54 pm

2 stops17h 24m

$453

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

mié. 4/22

11:21 am-3:40 pm

2 stops22h 19m

Lisbon Humberto Delgado

mié. 4/29

7:20 am-6:25 pm

2 stops17h 05m

$458

MilwaukeePorto

MKE - OPO

MKEOPO

Milwaukee-Mitchell

mar. 4/7

4:50 pm-8:00 pm

2 stops21h 10m

Porto

mié. 4/15

4:40 pm-6:25 pm

2 stops31h 45m

$472

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

dom. 2/15

11:02 am-3:10 pm

2 stops22h 08m

Lisbon Humberto Delgado

jue. 2/26

10:00 am-8:36 pm

1 stop16h 36m

$476

MilwaukeePorto

MKE - OPO

MKEOPO

Milwaukee-Mitchell

mié. 4/8

9:35 am-3:25 pm

2 stops23h 50m

Porto

jue. 4/16

5:00 am-5:58 pm

2 stops18h 58m

$480

MilwaukeePorto

MKE - OPO

MKEOPO

Milwaukee-Mitchell

vie. 2/20

12:26 pm-4:00 pm

2 stops21h 34m

Porto

vie. 2/27

8:20 am-5:54 pm

2 stops15h 34m

$486

MilwaukeePorto

MKE - OPO

MKEOPO

Milwaukee-Mitchell

mar. 4/7

12:27 pm-3:25 pm

2 stops20h 58m

Porto

lun. 4/13

4:20 pm-5:58 pm

2 stops31h 38m

$492

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

sáb. 2/21

3:30 pm-10:15 am

2 stops12h 45m

Lisbon Humberto Delgado

sáb. 2/28

5:00 am-9:44 pm

2 stops22h 44m

$500

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

lun. 3/9

7:00 am-9:00 am

1 stop21h 00m

Lisbon Humberto Delgado

mié. 3/18

10:00 am-8:06 pm

1 stop15h 06m

$532

MilwaukeePorto

MKE - OPO

MKEOPO

Milwaukee-Mitchell

vie. 4/10

1:35 pm-9:45 am

2 stops14h 10m

Porto

vie. 4/17

6:00 am-6:57 pm

2 stops18h 57m

$542

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 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 2% 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 41m

Direct flights

None
The fastest flight from Milwaukee to Portugal takes 14h 41m
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
9,142 reviews
Search United Airlines flights
KLMPriceFrom $670Free CancellationRating
7.7
1,434 reviews
Search KLM flights
DeltaPriceFrom $695Free CancellationRating
7.9
8,032 reviews
Search Delta flights
American AirlinesPriceFrom $703Free CancellationRating
7.2
11,097 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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