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Portugal

$487+ Cheap flights from Milwaukee (MKE) to Portugal

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/27. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — LIS
Apr 5 — Apr 121
Sat 4/5
Sat 4/12
1 adult, Economy
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Cheap flight deals from Milwaukee to Portugal

Keep the following information in mind while searching for Milwaukee to Portugal flight deals. Data was last updated March 31, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$786
(Gotogate)

One-way from

$487
(Kiwi.com)

Popular in

July

Cheapest in

January

Average price

$1,314
Provider with most accurate pricing for Milwaukee-Mitchell-Lisbon Humberto Delgado flight deals.
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Provider most trusted by Cheapflights users for Milwaukee-Mitchell-Lisbon Humberto Delgado flights.
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From Milwaukee-Mitchell to Portugal
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One-way flight from Milwaukee-Mitchell to Portugal
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Highest demand for flights based on searches. 14% potential increase in price ($178 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($30 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Find flight deals from Milwaukee to Portugal

Cheapest flights from Milwaukee to Portugal
Explore the most affordable flight options available from Milwaukee to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 31, 2025.

This Gotogate deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/165:40 pmMKE - OPO
2 stops33h 45mMultiple Airlines
Fri 9/2612:05 pmOPO - MKE
2 stops38h 40mMultiple Airlines
Deal found 3/31$786
This United deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/299:06 amMKE - LIS
1 stop17h 14mMultiple Airlines
Tue 5/611:25 amLIS - MKE
2 stops35h 41mMultiple Airlines
Deal found 3/31$788
This United deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1511:25 amMKE - LIS
2 stops14h 55mUnited Airlines
Tue 4/2911:25 amLIS - MKE
2 stops32h 22mUnited Airlines
Deal found 3/31$793
This United Airlines deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/211:25 pmMKE - OPO
2 stops20h 20mUnited Airlines
Tue 4/2912:35 pmOPO - MKE
1 stop12h 03mUnited Airlines
Deal found 3/30$823
This Gotogate deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/142:51 pmMKE - LIS
2 stops26h 19mBritish Airways
Wed 5/216:35 amLIS - MKE
2 stops37h 27mBritish Airways
Deal found 3/30$824
This Delta deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2111:25 amMKE - OPO
2 stops22h 05mDelta
Wed 4/306:20 amOPO - MKE
2 stops17h 32mDelta
Deal found 3/30$826
This Lufthansa deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/215:30 pmMKE - LIS
2 stops24h 00mLufthansa
Tue 5/66:15 amLIS - MKE
2 stops20h 22mLufthansa
Deal found 3/30$838
This Lufthansa deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/211:25 pmMKE - OPO
2 stops28h 00mLufthansa
Sat 5/36:15 amOPO - MKE
2 stops20h 22mLufthansa
Deal found 3/30$888
This Justfly.com deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/197:00 amMKE - LIS
2 stops20h 20mAir Canada
Sun 9/2812:50 pmLIS - MKE
2 stops30h 53mAir Canada
Deal found 3/30$915
This American Airlines deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/195:23 pmMKE - LIS
1 stop9h 42mAmerican Airlines
Sun 9/286:35 amLIS - MKE
2 stops16h 38mAmerican Airlines
Deal found 3/30$980
This Mytrip deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/2610:35 amMKE - PDL
3 stops39h 05mMultiple Airlines
Mon 6/211:50 amPDL - MKE
3 stops36h 09mMultiple Airlines
Deal found 3/30$1,066
This Vliegwinkel deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/149:06 amMKE - LIS
1 stop17h 14mSWISS
Wed 5/2112:20 pmLIS - MKE
2 stops15h 55mSWISS
Deal found 3/30$1,095

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated March 31, 2025.
Use the filters below to find and compare flights from Milwaukee to Portugal that are best for you.

Fly from

Milwaukee

Fly to

Portugal

Route

Depart

Return

Price

MilwaukeePorto

MKE - OPO

MKEOPO

Milwaukee-Mitchell

Tue 9/16

5:40 pm-9:25 am

2 stops33h 45m

Porto

Fri 9/26

12:05 pm-8:45 pm

2 stops38h 40m

$786

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

Tue 4/29

9:06 am-8:20 am

1 stop17h 14m

Lisbon Humberto Delgado

Tue 5/6

11:25 am-5:06 pm

2 stops35h 41m

$788

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

Tue 4/15

11:25 am-8:20 am

2 stops14h 55m

Lisbon Humberto Delgado

Tue 4/29

11:25 am-1:47 pm

2 stops32h 22m

$793

MilwaukeePorto

MKE - OPO

MKEOPO

Milwaukee-Mitchell

Mon 4/21

1:25 pm-3:45 pm

2 stops20h 20m

Porto

Tue 4/29

12:35 pm-6:38 pm

1 stop12h 03m

$823

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

Wed 5/14

2:51 pm-11:10 pm

2 stops26h 19m

Lisbon Humberto Delgado

Wed 5/21

6:35 am-2:02 pm

2 stops37h 27m

$824

MilwaukeePorto

MKE - OPO

MKEOPO

Milwaukee-Mitchell

Mon 4/21

11:25 am-3:30 pm

2 stops22h 05m

Porto

Wed 4/30

6:20 am-5:52 pm

2 stops17h 32m

$826

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

Mon 4/21

5:30 pm-11:30 pm

2 stops24h 00m

Lisbon Humberto Delgado

Tue 5/6

6:15 am-8:37 pm

2 stops20h 22m

$838

MilwaukeePorto

MKE - OPO

MKEOPO

Milwaukee-Mitchell

Mon 4/21

1:25 pm-11:25 pm

2 stops28h 00m

Porto

Sat 5/3

6:15 am-8:37 pm

2 stops20h 22m

$888

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

Fri 9/19

7:00 am-9:20 am

2 stops20h 20m

Lisbon Humberto Delgado

Sun 9/28

12:50 pm-1:43 pm

2 stops30h 53m

$915

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

Fri 9/19

5:23 pm-9:05 am

1 stop9h 42m

Lisbon Humberto Delgado

Sun 9/28

6:35 am-5:13 pm

2 stops16h 38m

$980

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/30

Showing 1-10 of 24 results
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Best time to book a flight from Milwaukee to Portugal

Have a flexible travel schedule? Discover the best time to fly to Portugal from Milwaukee with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Milwaukee to Portugal

What is the cheapest month to book a flight from Milwaukee to Portugal?

Currently, January is the cheapest month in which you can book a flight from Milwaukee to Portugal (average of $612). Flying from Milwaukee to Portugal in June is currently the most expensive (average of $1,213). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from MKE to PT?

Find hourly flight availability from Milwaukee to Portugal. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 31, 2025.

When flying from Milwaukee to Portugal, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Portugal by month

Plan your trip to Portugal by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Portugal ranges from 0.2 - 4.8 inches per month. December is typically the wettest month, when rainfall can reach 4.8 in. July is typically the driest time to visit Portugal when rainfall is around 0.2 in.

Temperature in Portugal by month

Plan your trip to Portugal by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Portugal, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing Portugal

Get insights into the airlines that provide service to Portugal. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Portugal. Reviews last updated March 31, 2025.
Read reviews from past customers who have flown Delta, KLM and Finnair from Milwaukee to Portugal. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,899 reviews

Crew

8.5

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,899 reviews
Delta
8.0
Very good
7,899 reviews

Crew

8.5

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,321 reviews
Delta
8.0
Very good
7,899 reviews

Crew

8.5

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Finnair
7.6
Good
1,267 reviews
Delta
8.0
Very good
7,899 reviews

Crew

8.5

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
SWISS
7.5
Good
1,570 reviews
Delta
8.0
Very good
7,899 reviews

Crew

8.5

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,614 reviews
Delta
8.0
Very good
7,899 reviews

Crew

8.5

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Milwaukee to Portugal. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Milwaukee to Portugal?

    Milwaukee-Mitchell (MKE) is the airport you will fly out of if you book a flight from Milwaukee to Portugal. It is only a 6.4 mi journey to Milwaukee-Mitchell (MKE) from Milwaukee’s city center.

  • What are the cheapest airlines to fly from Milwaukee to Portugal one-way?

    The cheapest airline one-way is Air Canada, with whom users have recently found tickets for as low as $603. However, be on the lookout for offers from United Airlines and American Airlines, as they are both options that can get you from Milwaukee to Portugal for a low price.

  • What are the most popular routes from Milwaukee to Portugal?

    Most travelers choose Milwaukee-Mitchell - Lisbon Humberto Delgado, Milwaukee-Mitchell - Porto or Milwaukee-Mitchell - Ponta Delgada Nordela when deciding on the best route from Milwaukee to Portugal.

  • Can I find deals for flights from Milwaukee to Portugal that include hotel bookings?

    Yes. In addition to deals on Milwaukee to Portugal flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Milwaukee to Portugal?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Milwaukee to Portugal.

  • Can I find deals for business class flights from Milwaukee to Portugal?

    Yes. Cheapflights offers flight deals from Milwaukee to Portugal by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Milwaukee to Portugal?

    Currently, January is the cheapest month in which you can book a flight from Milwaukee to Portugal (average of $612). Flying from Milwaukee to Portugal in June is currently the most expensive (average of $1,213). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Milwaukee to Portugal

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Milwaukee to Portugal

Discover the top 4 airlines that operate flights from Milwaukee to Portugal. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$555Average$1,147FlexibilityNo cancel feeOn-time69%
KLMCheapest$587Average$1,050FlexibilityNo cancel feeOn-time75%
DeltaCheapest$695Average$1,157FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$813Average$1,182FlexibilityNo cancel feeOn-time71%
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